摩迪考试AWS试题C
CWI考试3Part+C+练习题及答案
CWI考试3Part+C+练习题及答案规范练习题（PART C）（适用规范：AWS D1.1:2008 StructuralWelding Code—Steel）（本练习题包括：第一部分考试练习题和第二部分模拟题及其答案说明：本练习题系AWS 根据AWS D1.1/D1.1M：2008 所编；在考试内容上和AWS D1.1/D1.1M：2006 无重要差别，特此说明，仅供参考。
2009 年SWS 的培训和考试用规范为AWS D1.1/D1.1M：2006。
）第一部分（考试练习题部分）1.For RT of 1-1/2 inch thick plate, which hole-type IQI designation isrequired (Source Side)?1-1/2英寸厚的板进行RT时，应选用那标号的孔型像质指示器（射线源侧）a) 20b) 25c) 30d) 35e) 402.Which of the follow SMAW electrodes is not included in the F2 group?下面那种SMAW焊条不包括在F2组别内？a)E6012b)E6010c)E6013d)E6014e)None of the above 以上都不是3.The maximum weld reinforcement permitted for a welding procedurequalification on pipe or tubing having a wall thickness of 0.208 inch is:壁厚为0.208英寸的管材焊接工艺评定允许的最大焊缝余高是：a)none permitted 不允许b)1/16 inchc)3/16 inchd)3/32 inche)1/8 inch4.For a fillet weld joining 1/2 inch thick statically loaded nontubularmembers, what maximum length of 1/16 inch deep undercut is allowed in any 12 inch length of weld?连接1/2英寸厚的板材静载荷构件的角焊缝，每12英寸焊缝长度内，允许1/16英寸的咬边最大长度是多少。
《数据分析与可视化技术在AWS上进行开发》期末考试试卷带答案
《数据分析与可视化技术在AWS上进行开发》期末考试试卷带答案数据分析与可视化技术在AWS上进行开发一、简答题（每题20分，共4题）1. 数据分析和可视化技术的定义及特点是什么？数据分析是一种通过收集、整理、解释和呈现数据来进行信息提取和决策支持的过程。
它涉及使用统计学、模型描述和数据可视化等方法，从大规模数据中提取有用信息，并将其转化为有意义的见解。
数据分析的特点包括：提取信息、探索模式、发现关系、解释现象和支持决策。
可视化技术是将数据和信息通过图形、图表、动画等形式进行可视化呈现的技术。
它能够以直观、交互和易理解的方式展示数据，帮助用户更好地理解数据的模式、趋势和关系。
可视化技术的特点包括：简化信息、提供视觉化展示、促进洞察力、加强理解和沟通。
2. AWS（Amazon Web Services）是什么？它提供哪些与数据分析和可视化相关的服务？AWS是亚马逊公司提供的一系列云计算服务。
它通过允许用户按需获取计算能力、存储资源和其他应用服务，帮助用户快速构建灵活可扩展的应用。
AWS提供了多种与数据分析和可视化相关的服务，包括：- Amazon S3：用于存储和检索大规模数据集的对象存储服务。
- Amazon Redshift：用于数据仓库和分析的快速、可扩展的云数据库服务。
- Amazon Athena：无需预定义模式即可查询存储在S3中的数据的交互式查询服务。
- Amazon QuickSight：用于数据可视化和商业智能的云端工具。
- AWS Glue：用于数据集成和ETL（提取、转换和加载）的完全托管的ETL服务。
- Amazon Kinesis：用于实时数据处理和分析的流式数据平台。
- AWS Data Pipeline：用于从不同数据源自动化和协调数据流水线的服务。
3. 数据分析和可视化技术在AWS上的优势是什么？在AWS上进行数据分析和可视化技术具有以下优势：- 弹性扩展性：AWS提供按需获取计算和存储资源的能力，使数据分析和可视化能够根据需求快速扩展和收缩，以应对不同规模和复杂度的数据处理和分析任务。
题目：(简化版)AWS题库含答案
题目：(简化版)AWS题库含答案
AWS题库含答案：获取AWS认证是在云计算领域中提高职业素质的重要方式之一。
为了帮助大家备考AWS认证考试，以下是一份简化版的AWS题库含答案，供参考使用。
题目一
问题：什么是AWS S3？
答案：AWS S3指的是Amazon Simple Storage Service，是一种对象存储服务，用于存储和检索云数据。
它是一种高度可靠且可扩展的服务，使用户可以轻松地存储和检索任意数量的数据。
题目二
问题：什么是AWS EC2？
题目三
问题：什么是AWS RDS？
答案：AWS RDS指的是Amazon Relational Database Service，是一种用于管理关系型数据库的云服务。
它支持多种数据库引擎，包括MySQL、PostgreSQL、Oracle等，并提供了自动备份、故障恢复等功能。
题目四
问题：什么是AWS Lambda？
答案：AWS Lambda是一种无服务器计算服务，允许用户在云中运行代码，而无需管理服务器。
用户只需上传和配置代码，Lambda会自动扩展和调整计算资源，以满足代码执行的需求。
以上是一份简化版的AWS题库含答案，供备考AWS认证考试时参考。
注意，这只是一小部分题目，实际考试中会有更多相关题目需要掌握。
> 注：本文档所提供的题目和答案仅供参考，并非官方认证内容，具体考试内容以AWS官方发布的信息为准。
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以上是题目：(简化版)AWS题库含答案的文档内容，总字数超过800字。
2024年9月GESP编程能力认证C++等级考试试卷五级真题(含答案)
2024年9月GESP编程能力认证C++等级考试试卷五级真题(含答案) 一、单选题（每题2分，共30分）。
1. 下面关于链表和数组的描述，错误的是（）。
A. 数组大小固定，链表大小可动态调整。
B. 数组支持随机访问，链表只能顺序访问。
C. 存储相同数目的整数，数组比链表所需的内存多。
D. 数组插入和删除元素效率低，链表插入和删除元素效率高。
2. 通过（）操作，能完成在双向循环链表结点p之后插入结点s的功能（其中next域为结点的直接后继，prev域为结点的直接前驱）。
A. p->next->prev =s;s->prev =p;p->next =s;s->next =p->next;B. p->next->prev =s;p->next =s;s->prev =p;s->next =p->next;C. s->prev =p;s->next =p->next;p->next =s;p->next->prev =s;D. s->next =p->next;p->next->prev =s;s->prev =p;p->next =s;3. 对下面两个函数，说法错误的是（）。
int sumA(int n){int res =0;for(int i =1;i <=n;i++){res +=i;}return res;}int sumB(int n){if(n ==1)return 1;int res =n + sumB(n - 1);return res;}A. sumA体现了迭代的思想。
B. SumB采用的是递归方式。
C. SumB函数比SumA的时间效率更高。
D. 两个函数的实现的功能相同。
4. 有如下函数fun，则fun(20, 12)的返回值为（）。
AWS Certified Cloud Practitioner Exam 65道题目+答案
AWS Certified Cloud PractitionerExamQUESTION: 1What is the term used to describe giving an AWS user only access to the exact services he/sheneeds to do the required job and nothing more?A. The Least Privilege User PrincipalB. The Principal of Least PrivilegeC. The Only Access Principal.D. None of the aboveAnswer(s): BQUESTION: 2What you create and S3 bucket, what rules must be followed regarding the bucket name? (Choose two)A. Bucket names must be unique across all of AWS.B. Bucket names must be between 3-63 characters in length.C. Bucket names must contain at least one uppercase letterD. Bucket names can be formatted as IP addressesAnswer(s): A, BExplanation:Although certain regions do allow for uppercase letters in the bucket name, uppercase lettersare NOT required. Also, a bucket name cannot be formatted as an IP address. QUESTION: 3What are the main benefits of On-Demand EC2 instances? (Choose two)A. They are the cheapest buying option.B. They are the most flexible buying option.C. They require 1-2 days for setup and configuration.D. Create, start, stop, and terminate at any time.Answer(s): B, DExplanation:On-demand EC2 instances are widely used due to their flexibility. You can create, start, stop,and terminate at any time (with no startup or termination fees). Although due to this flexibility,they are the most expensive buying option.QUESTION: 4What AWS service must you use if you want to configure an AWS billing alarm?A. CloudWatchB. CloudMonitorC. Consolidated billingD. CloudTrailAnswer(s): AExplanation:CloudWatch is the AWS service that allows you to collect metrics, and create alarms based onthose metrics. Billing metrics can be tracked in CloudWatch, therefore billing alarms can becreated.QUESTION: 5What are some common uses of AWS? (Choose four)A. NetworkingB. AnalyticsC. StorageD. VirtualizationAnswer(s): A, B, C, DExplanation:Al of the answers are common uses of AWS. AWS has thousands of different uses. In thiscourse we discussed some of the major categories, including: Storage Compute PowerDatabases Networking Analytics Developer Tools Virtualization Security QUESTION: 6How much data can you store in S3?A. Storage capacity is virtual y unlimited.B. You can store up to 1 petabyte of data.C. Each account is given 50 gigabytes of storage capacity and no more can be used.D. You can store up to 1 petabyte of data, then you are required to pay an additional fee.Answer(s): AExplanation:Although there is theoretically a capacity limit, as an S3 user, there is no limited on the amountof data you can store in S3.QUESTION: 7You have just set up a brand new AWS account. You want to keep monthly billing under $100,but you are worried about going over that limit. What can you set up in order to be notified whenthe monthly bill approaches $100?A. A CloudTrail billing alarm that triggers an SNS notification to your email address.B. A SNS billing alarm that triggers a CloudWatch notification to your email address.C. A CloudWatch billing alarm that triggers an SNS notification to your email address.D. A CloudWatch billing alarm that triggers a CloudTrail notification to your email address.Answer(s): CExplanation:In CloudWatch, you can set up a billing alarm that will trigger when your monthly bill hit the setthreshold. That alarm can then be set up to trigger an SNS topic that will send you a notificationthat the alarm threshold as been met.QUESTION: 8What best describes the purpose of having many Availability Zones in each AWS region?A. Multiple Availability Zones allow for fault tolerance but not high availability.B. Multiple Availability Zones allow for cheaper prices due to competition between them.C. Multiple Availability Zones allow for duplicate and redundant compute, and data backups.D. None of the above.Answer(s): CExplanation:Availability Zones work together within a region to provide users with the ability to easily setupand configure redundant architecture and backup solutionsQUESTION: 9What TWO services/features are required to have highly available and fault tolerant architecturein AWS? (Choose two)A. Elastic Load BalancerB. CloudFrontC. ElastiCacheD. Auto ScalingAnswer(s): A, DQUESTION: 10Which S3 storage class has lowest object availability rating?A. StandardB. Reduced RedundancyC. Infrequent AccessD. Al of them have the same availability ratingAnswer(s): CExplanation:Infrequent access has the lowest availability rating (99.90%). Standard and Reduced Redundancy have an availability rating of 99.99%[next]QUESTION: 11Your company’s upper management is getting very nervous about managing governance,compliance, and risk auditing in AWS. What service should you enable and inform uppermanagement about?A. CloudAuditB. CloudTrailC. CloudComplianceD. CloudWatchAnswer(s): BExplanation:AWS CloudTrail is designed to log all actions taken in your AWS account. This provides a greatresource for governance, compliance, and risk auditing.QUESTION: 12The concept of elasticity is most closely associated with which of the following?A. Auto ScalingB. Network SecurityC. Serverless ComputingD. Elastic Load BalancingAnswer(s): AExplanation:Elasticity is the concept that a system can easily (and cost-effectively) both increase in capacitybased on-demand and also shrink in capacity based on-demand. Auto Scaling on AWS isspecifically designed to (automatically) increase and decrease server capacity based on-demand.QUESTION: 13Which of the following will effect how much you are charged for storing objects in S3? (Choosetwo)A. The storage class used for the objects stored.B. Encrypting data (objects) stored in S3.C. Creating and deleting S3 bucketsD. The total size in gigabytes of all objects stored.Answer(s): A, DQUESTION: 14What endpoints are possible to send messages to with Simple Notification Service? (Choosethree)A. SMSB. FTPC. SQSD. LambdaAnswer(s): A, C, DQUESTION: 15What does S3 stand for?A. Simple Storage ServiceB. Simplified Storage ServiceC. Simple Store ServiceD. Service for Simple StorageAnswer(s): AQUESTION: 16Big Cloud Jumbo Corp is beginning to explore migrating their entire on-premises data center toAWS. They are very concerned about how much it will cost once their entire I.T. infrastructure isrunning on AWS. What tool can you recommend so that they can estimate what the cost ofusing AWS may be?A. AWS Estimate CalculatorB. AWS TCO CalculatorC. AWS Cost ExplorerD. AWS Migration Cost CalculatorAnswer(s): BExplanation:The AWS TCO (Total Cost of Ownership) Calculator is a free tool provided by AWS. It allowsyou to compare your current on-premises cost vs. estimated AWS cost. QUESTION: 17Kunal is managing an application running on an on-premises data center. What best describesthe challenges he faces that someone using the AWS cloud does not?A. Kunal must research what size (compute capacity) servers he needs to run his application.B. Kunal must know how to properly configure network level security.C. Kunal must predict future growth, and scaling can be costly and time consuming.D. None of the above.Answer(s): CExplanation:Scaling is much faster and cost-effecting on the AWS cloud. With on-demand instances andauto scaling, future growth does not have to be predicted. More compute capacity can be addedgradual y as demand increases.QUESTION: 18What AWS storage class should be used for long-term, archival storage?A. GlacierB. Long-TermC. StandardD. Infrequent AccessAnswer(s): AExplanation:Glacier should be used for (and is specifically designed for) long-term, archival storage. QUESTION: 19Kim is managing a web application running on the AWS cloud. The application is currentlyutilizing eight EC2 servers for its compute platform. Earlier today, two of those web serverscrashed; however, none of her customer were effected. What has Kim done correctly in thisscenario?A. Properly built an elastic system.B. Properly built a scaleable systemC. Properly build a fault tolerant system.D. None of the above.Answer(s): CExplanation:A fault tolerant system is one that can sustain a certain amount of failure while stil remainingoperational.QUESTION: 20What are the benefits of DynamoDB? (Choose three)A. Supports multiple known NoSQL database engines like MariaDB and Oracle NoSQL.B. Automatic scaling of throughput capacity.C. Single-digit millisecond latency.D. Supports both document and key-value store data models.Answer(s): B, C, DExplanation:DynamoDB does not use/support other NoSQL database engines. You only have access to useDynamoDB’s built-in engine.[next]QUESTION: 21What best describes penetration testing?A. Testing your applications ability to penetrate other applications.B. Testing your IAM users access to AWS services.C. Testing your own network/application for vulnerabilities.D. None of the above.Answer(s): CQUESTION: 22Why would a company decide to use AWS over an on-premises data center? (Choose four)A. Highly available infrastructureB. Elastic resources based on demandC. No upfront costD. Cost-effectiveAnswer(s): A, B, C, DExplanation:Al four answers listed are reasons why a company may decide to use AWS over an on-premises data center.QUESTION: 23You are trying to organize and import (to AWS) gigabytes of data that are currently structured inJSON-like, name-value documents. What AWS service would best fit your needs?A. LambdaB. AuroraC. RDSD. DynamoDBAnswer(s): DExplanation:DynamoDB is AWS’s NoSQL database offering. NoSQL databases are for non-structured datathat are typically stored in JSON-like, name-value documents.QUESTION: 24What best describes what AWS is?A. AWS is an online retailerB. AWS is the cloud.C. AWS is a cloud services provider.D. None of the above.Answer(s): CQUESTION: 25What is one benefit AND one drawback of buying a reserved EC2 instance? (Select two)A. You can terminate the instance at any time without any further pricing commitment.B. Reserved instances can be purchased as a significant discount over on-demand instances.C. You can potentially save a lot of money by placing a lower “bid” price.D. You are locked in to either a one- or three-year pricing commitment.Answer(s): B, DExplanation:Reserved instances require a one- or three-year purchase term, so you are committing topaying for that much compute capacity for that full time period. However, in exchange for thelong-term commitment, you will receive a discount (of up to 75%) over using an on-demandinstance (for that same time period).QUESTION: 26Before moving and/or storing object in AWS Glacier, what considerations should you makeregarding the data you want to store.A. Make sure the data is properly formatted for storage Glacier.B. Make sure the total amount of data you want to store in under 1 terabyte in size.C. Make sure you are ok with it taking at minimum a few minutes to retrieve the data oncestored in Glacier.D. None of the above.Answer(s): CExplanation:Objects stored in Glacier take time to retrieve. You can pay for expedited retrieval, which willtake several minutes – OR wait several hours (for normal retrieval).QUESTION: 27John is working with a large data set, and he needs to import it into a relational databaseservice. What AWS service will meet his needs?A. RDSB. RedshiftC. NoSQLD. DynamoDBAnswer(s): AExplanation:RDS is AWS’s relational database service.QUESTION: 28Jeff is building a web application on AWS. He wants to make sure his application is highlyavailable to his customers. What infrastructure components of the AWS cloud allow Jeff toaccomplish this goal? (Choose two)A. Availability ZonesB. Regional ZonesC. RegionsD. Data LocationsAnswer(s): A, CExplanation:As part of AWS’ global inf rastructure, Regions and Availability Zones allow for backups andduplicate components to be placed in separate (isolated) areas of the globe. If one region/Availability Zone were to fail, duplicates in other regions/Availability Zones can be used.QUESTION: 29What is AWS’s server less compute service?A. S3B. LambdaC. EC2D. None of the aboveAnswer(s): BExplanation:AWS has two main compute services, EC2 (server-based) and Lambda (server less). QUESTION: 30Stephen is having issues tracking how much compute capacity his application is using. Ideal y,he wants to track and have alarms for when CPU utilization goes over 70%. What shouldStephen do to accomplish this?A. Configure an SNS topic with an alarm threshold set to trigger when CPU utilization is greaterthan 70%.B. Configure a CloudWatch alarm with an alarm threshold set to trigger when CPU utilization isgreater than 70%.C. Configure a CloudWatch alarm with an alarm threshold set to trigger when CPU utilization isgreater than or equal to 70%.D. None of the above.Answer(s): BExplanation:The answer is to configure a CloudWatch alarm with an alarm threshold set to trigger whenCPU utilization is greater than 70%. This will display the alarm in “alarm” state when CPUutilization is greater than 70%. This question has been worded very specifically with the works“goes above 70%”. This disqualifies the answer that stated “great than or equal to 70%”. TheAWS exam will have very tricky questions like this.[next]QUESTION: 31What is the availability and durability rating of S3 Standard Storage Class?A. 99.999999999% Durability and 99.99% AvailabilityB. 99.999999999% Availability and 99.90% DurabilityC. 99.999999999% Availability and 99.99% DurabilityD. 99.999999999% Durability and 99.00% AvailabilityAnswer(s): AExplanation:S3 Standard Storage class has a rating of 99.999999999% durability (referred to as 11 nines)and 99.99% availability.QUESTION: 32If you want to easily share a file with a friend, family or coworker, what AWS solution should youuse?A. Mail them a flash drive with the file on it.B. Create an EC2 instance and give provide login credentials so others can access the file.C. Upload the object to S3 and share it via its object’s S3 public object URL.D. None of the above.Answer(s): CExplanation:You can easily share objects uploaded into S3 by provided others with the object’s URL.QUESTION: 33S3 storage classes are rated by what two metric categories? (Select two)A. ObjectivityB. DurabilityC. AvailabilityD. Fault toleranceAnswer(s): B, CExplanation:Each S3 storage class is rated on its availability and durability.QUESTION: 34If an object is stored in the Standard S3 storage class and you want to move it to Glacier, whatmust you do in order to properly migrate it?A. Delete the object and re-upload it, selecting Glacier as the storage class.B. Create a life cycle policy that will migrate it after a minimum of 30 days.C. Change the storage class directly on the object.D. None of the above.Answer(s): BExplanation:Any object uploaded to S3 must first be placed into either the Standard, Reduced Redundancy,or Infrequent Access storage class. Once in S3 the only way to move the object to glacier isthrough a life cycle policy.QUESTION: 35What is the most common type of storage used for EC2 instances?A. Elastic File System (EFS)B. EC2 Hard DrivesC. Elastic Block Store (EBS)D. Magnetic Drive (MD)Answer(s): CExplanation:EC2 instance have several different hard drive options. However, Elastic Block Store (EBS),which is a type of Network Attached Storage, is the most popular and widely used. QUESTION: 36What AWS service has built-in DDoS mitigation?A. CloudFrontB. CloudTrailC. CloudWatchD. EC2Answer(s): AExplanation:With CloudFront, you cache content at Edge Locations, which shield your underlining application infrastructure from DDoS attacks.QUESTION: 37You have been tasked by your department head to upload a batch of files to an S3 bucket;however, when you select S3 on the AWS console, you see a notification stating that you do nothave permission to access S3. What is the most probable cause of this error?A. It takes 24 hours go get access to S3.B. The S3 service is currently down for maintenance.C. You do not have an S3 access policy attached to your IAM user.D. Your boss has not enabled proper bucket permissions.Answer(s): CExplanation:If you get an error stating that you do not have proper permissions to access/use and AWSservice, then most likely your IAM user does not have the proper permission policy attached.QUESTION: 38What are the benefits of AWS’s Relational Database Serv ice (RDS)? (Choose three)A. Re-sizable capacityB. Automated patches and backupsC. Cost-efficientD. None of the aboveAnswer(s): A, B, CQUESTION: 39Thomas is managing the access rights and credentials for all the employees that have access tohis company’s AWS account. This morning, his was notified that some of these accounts mayhave been compromised, and he now needs to change the password policy and re-generate anew password for all users. What AWS service does Thomas need to use in order to accomplish this?A. Policy and Access ManagementB. Elastic Cloud ComputeC. Access ManagementD. None of the above.Answer(s): DExplanation:Identity and Access Management (IAM) is the AWS service where password policies and usercredentials are managed. (Policy and Access Management as a service does not exist).QUESTION: 40What are the primary benefits of using Lambda? (Choose two)A. Pay for only the compute time you consume.B. Wide variety of operating systems to select from.C. Actively select and manage instance type and capacity.D. Run code without provisioning servers.Answer(s): A, DExplanation:Lambda, being AWS’s server less compute platform, means there are no servers, instancetypes, or capacity to select. That is all managed for you. With Lambda, you only for the whenyour code is actual y being executed.[next]QUESTION: 41If you have a set of frequently accessed files that are used on a daily basis, what S3 storageclass should you store them in?A. Infrequent AccessB. Reduced RedundancyC. StandardD. Fast AccessAnswer(s): CExplanation:The Standard storage class should be used for files that you access on a daily or very frequentbasis.QUESTION: 42Which of the following will effect price you pay for an EC2 instance? (Choose three)A. Instance Type.B. Selected Storage ClassC. How long you use the instance for.D. Amazon Machine Image (AMI).Answer(s): A, C, DExplanation:EC2 instance pricing various depending on many variables. 1) The type of buying option 2)Selected AMI 3) Selected instance type 4) Region 5) Data in/out 6) Storage capacity QUESTION: 43If you want in-depth details on how to create, manage, and attach IAM access policies to IAMusers, in what AWS resource should you look?A. AWS How-To-Help SectionB. AWS Service DocumentationC. AWS WhitepapersD. None of the aboveAnswer(s): BExplanation:AWS Service documentation is a collection of documents specific to each AWS service. Theycontain detailed how-to’s, as well as technical walk through and specifications. QUESTION: 44You notice that five of your 10 S3 buckets are no longer available in your account, and youassume that they have been deleted. You are unsure who may have deleted them, and no oneis taking responsibility. What should you do to investigate and find out who deleted the S3buckets?A. Look at the S3 logs.B. Look at the CloudTrail logs.C. Look at the CloudWatch Logs.D. Look at the SNS logs.Answer(s): BExplanation:CloudTrail is logging service that logs actions taken by AWS users in your AWS account, suchas creating/deleting S3 buckets, starting/stopping EC2 stances, etc.QUESTION: 45What acts as an address (like a mailing address) for a web server located on a network?A. DNS ServerB. IP AddressC. Common language domain nameD. None of the aboveAnswer(s): BExplanation:An IP address is a severs address on a network. It is how traffic/request get routed to it (muchlike a piece of mail gets routed to your home).QUESTION: 46What services has built-in DDoS mitigation and/or protection?A. EC2B. RDSC. SNSD. None of the aboveAnswer(s): DExplanation:AWS services with built-in DDoS mitigation/protection include: 1) Route 53 2) CloudFront 3)WAF (web application firewall ) 4) Elastic Load Balancing 5) VPCs and Security GroupsQUESTION: 47What should you do if you believe your AWS account has been compromised? (Choose four)A. Delete any resources in your account that you did not create.B. Respond to any notifications you received from AWS through the AWS Support Center.C. Change all IAM user’s passwords.D. Delete or rotate all programmatic (API) access keys.Answer(s): A, B, C, DExplanation:Al these answers are actions you should take if you believe you account has been compromised.QUESTION: 48Under what circumstances would someone want to use ElastiCache? (Choose two)A. They need a NoSQL database optionB. They need to use Edge Locations to cache contentC. The need improved improve the performance of their web application.D. They need in-memory data store service.Answer(s): C, DExplanation:ElastiCache is used as an in-memory data store or cache in the cloud. Benefits include improved performance for web applications (that rely on information stored in a database). EdgeLocations are used for caching content with the CloudFront service, so that is not a answerhere.QUESTION: 49Derek is running a web application and is noticing that he is paying for way more server capacity then is required. What AWS feature should Derek set up and configure to ensure thathis application is automatically adding/removing server capacity to keep in line with the requireddemand?A. Auto ScalingB. Elastic Server ScalingC. Elastic Load BalancingD. Auto SizingAnswer(s): AExplanation:Auto scaling is the feature that automated the process of adding/removing server capacity froma system (based on usage demand). Auto scaling creates a very cost effective system by neverhaving too much or too little server capacity.QUESTION: 50What AWS service uses Edge Locations for content caching?A. ElastiCacheB. Route 53C. CloudFrontD. CloudCacheAnswer(s): CExplanation:CloudFront is a content caching service provided by AWS that utilizes “Edge Locations,” whichare AWS data centers located all around the world.[next]QUESTION: 51What is the purpose of AWS’s Route 53 service? (Choose two)A. Content CachingB. Database ManagementC. Domain RegistrationD. Domain Name System (DNS) serviceAnswer(s): C, DExplanation:Route 53 is AWS’s domain and DNS management service. You can use it to register newdomain names, as well as manage DNS record sets.QUESTION: 52What are the benefits of AWS Organizations? (Choose two)A. Analyze cost across al multiple AWS accounts.B. Automate AWS account creation and management.C. Centrally manage access polices across multiple AWS accounts.D. None of the above.Answer(s): B, CExplanation:AWS Organizations has four main benefits: 1) Centrally manage access polices across multipleAWS accounts. 2) Automate AWS account creation and management. 3) Control access toAWS services 4) Enable consolidated billing across multiple AWS accounts Analyzing cost isdone through the Cost Explorer (or TCO calculator), which is not part of AWS Organizations.QUESTION: 53What AWS service allows you to have your own private network in the AWS cloud?A. Virtual Private Network (VPN)B. Virtual Private Cloud (VPC)C. Virtual Cloud Network (VCN)D. None of the above.Answer(s): BExplanation:A Virtual Private Cloud (VPC) is a private sub-section of AWS that is your own private network.You control what resources you place inside the VPC and the security features around it.QUESTION: 54If you are using an on-demand EC2 instance, how are you being charged for it?A. You are charged per second, based on an hourly rate, and there are no termination fees.B. You are charged by the hour and must pay a partial upfront fee.C. You must commit to a one or three year term and pay upfront.D. You are charged per second, based on an hourly rate, and there is a termination fee.Answer(s): AExplanation:On-demand EC2 instances are exactly that, on-demand. There are no upfront or terminationfees, and you are charged for each second of usage (based on an hourly rate). QUESTION: 55Matt is working on a projects that involves converting an images format from .png to .jpg.Thousands of images have to be converted; however, time is not real y an issue and continualprocessing is not required. What type of EC2 buying option would be most cost-effective forMatt to use?A. SpotB. On-demandC. ReservedD. None of the aboveAnswer(s): AExplanation:Spot instances offer the cheapest option of all EC2’s buying options. However, spot instancesshould only be used when there can be interruptions in the processing jobs being conducted.This is due to the fluctuation in spot pricing. If the spot price goes above your bid price, then youwil lose access to the spot instance (thus causing a stoppage in processing). QUESTION: 56David is managing a web application running on dozens of EC2 servers. He is worried that ifsomething goes wrong with one of the servers he wil not know about it in a timely manner.What solution could you offer to help him keep updated on the status of his servers?A. Configure each EC2 instance with a custom script to email David when any issues occur.B. Configure RDS notifications based on CloudWatch EC2 metric alarms.C. Enable CloudTrail to log and report any issues that occur with the EC2 instances.D. Configure SNS notifications based on CloudWatch EC2 metric alarms.Answer(s): DExplanation:CloudWatch is used to track metrics on all EC2 instances. Metric alarms can be configured totrigger SNS messages if something goes wrong.QUESTION: 57What AWS database is primarily used to analyze data using standard SQL formatting withcompatibility for your existing business intelligence tools?A. ElastiCacheB. DynamoDBC. RedshiftD. RDSAnswer(s): CExplanation:Redshift is a database offering that is fully-managed and used for data warehousing andanalytics, including compatibility with existing business intelligence tools. QUESTION: 58Tracy has created a web application, placing it’s underlining infrastructure in the N. Virginia (US-East-1) region. After several months, Tracy notices that much of the traffic coming to herwebsite is coming from Japan. What can Tracy do to (best) help reduce latency for her users inJapan?A. Copy the current VPC and located in US-East-1 and ask AWS to move it to a region closestto JapanB. Create a and manage a complete duplicate copy of the web application and its infrastructurein a region closest to Japan.C. Create a CDN using CloudFront, making sure the proper content is cached at Edge Locations closest to Japan.D. Create a CDN using CloudCache, making sure the proper content is cached at EdgeLocations closest to Japan.Answer(s): CExplanation:CloudFront is AWS’s content delivery network (CDN) service. You can use it to cache web。
AWS SAA-C03 知识点和例题全记录【专题四 Cognito】英文版 Word
Question 143 Secure Authentication for RESTful APIsAn analytics company uses Amazon VPC to run its multi-tier services. The company wants to use RESTful APIs to offer a web analytics service to millions of users. Users must be verified by using an authentication service to access the APIs. which solution will meet these requirements with the MOST operational efficiency? Options• A. Configure an Amazon Cognito user pool for user authentication. Implement Amazon API Gateway REST APIs with a Cognito authorizer.• B. Configure an Amazon Cognito identity pool for user authentication. Implement Amazon API Gateway HTTP APIswith a Cognito authorizer.• C. Configure an AWS Lambda function to handle user authentication. Implement Amazon API Gateway REST APIs with a Lambda authorizer.• D. Configure an IAM user to handle user authentication.Implement Amazon API Gateway HTTP APIs with an IAMauthorizer.Key ServiceCognitoKey PointDesign Secure ArchitecturesNote• A. ✅ Configure an Amazon Cognito user pool for user authentication. Implement Amazon API Gateway REST APIs with a Cognito authorizer. This solution provides secure andefficient user management and integrates well with RESTAPIs.• B. ❌ Configure an Amazon Cognito identity pool for user authentication. Implement Amazon API Gateway HTTP APIswith a Cognito authorizer. Identity pools are better suited forunauthenticated access, while user pools handle authenticated users more effectively.• C. ❌ Configure an AWS Lambda function to handle user authentication. Implement Amazon API Gateway REST APIswith a Lambda authorizer. While this is possible, it introducesadditional complexity compared to using Cognito for usermanagement.• D. ❌ Configure an IAM user to handle user authentication.Implement Amazon API Gateway HTTP APIs with an IAMauthorizer. IAM is not designed for end-user authenticationand would be less efficient for managing millions of users. Question 144 Serverless Authentication and AuthorizationA company wants to restrict access to the content of one of its main web applications and to protect the content by using authorization techniques available on AWS. The company wants to implement a serverless architecture and an authentication solution for fewer than 100 users. he solution needs to integrate with the main web application and serve web content globally. The solution must also scale as the company’s user base grows while providing the lowest login latency possible. which solution will meet these requirements MOST cost-effectively?OptionsA. Use Amazon Cognito for authentication. Use Lambda@Edge forauthorization. Use Amazon CloudFront to serve the webapplication globally.B. Use AWS Directory Service for Microsoft Active Directory forauthentication. Use AWS Lambda for authorization. Use anApplication Load Balancer to serve the web application globally.C. Use Amazon Cognito for authentication. Use AWS Lambda forauthorization. Use Amazon S3 Transfer Acceleration to serve the web application globally.D. Use AWS Directory Service for Microsoft Active Directory for**************************************************** Elastic Beanstalk to serve the web application globally.Key ServiceCognitoKey PointDesign Secure ArchitecturesNote• A. ✅ Use Amazon Cognito for authentication and************************************************** the web application globally providing low latency andscalability. This solution is cost-effective for fewer than 100users and can scale as the user base grows.• B. ❌ Using AWS Directory Service for Microsoft Active Directory for authentication introduces higher costs andcomplexity compared to Amazon Cognito. AWS Lambda forauthorization and an Application Load Balancer to serve theweb application globally do not provide the global servingcapabilities and cost-effectiveness of Amazon CloudFront. • C. ❌ While Amazon Cognito for authentication and AWS Lambda for authorization are suitable, Amazon S3 TransferAcceleration is not designed to serve web applicationsglobally. It is better suited for file transfers and does notprovide the low latency and scalability needed for web content. • D. ❌ Using AWS Directory Service for Microsoft Active Directory for authentication adds unnecessary complexity and higher costs compared to Amazon Cognito. Lambda@Edge for authorization and AWS Elastic Beanstalk to serve the webapplication globally do not offer the global distribution and low latency benefits of Amazon CloudFront.Question 145 Serverless Authentication and AuthorizationA company wants to restrict access to the content of its web application. The company needs to protect the content by using authorization techniques that are available on AWS. The company also wants to implement a serverless architecture for authorization and authentication that as low login latency. he solution must integrate with the web application and serve web content globally. The application currently has a small user base, but the company expects the application’s user base to increase. which solution will meet these requirements?Options•A. Configure Amazon Cognito for authentication. Implement***************************************************** to serve the web application globally.•B. Configure AWS Directory Service for Microsoft Active Directory for authentication. Implement AWS Lambda for authorization. Use an Application Load Balancer to serve the web application globally.•C. Configure Amazon Cognito for authentication. Implement AWS Lambda for authorization. Use Amazon S3 Transfer Acceleration to serve the web application globally.•D. Configure AWS Directory Service for Microsoft Active Directory for authentication. Implement Lambda@Edge for authorization. Use AWS Elastic Beanstalk to serve the web application globally.Key ServiceCognitoKey PointDesign Secure ArchitecturesNote• A. ✅ Configure Amazon Cognito for authentication. Implement *******************************************CloudFront to serve the web application globally. This solution meets the requirement of a serverless architecture with lowlogin latency and global content delivery.• B. ❌ Configure AWS Directory Service for Microsoft Active Directory for authentication. Implement AWS Lambda forauthorization. Use an Application Load Balancer to serve theweb application globally. This option uses Active Directorywhich is not a serverless solution and an Application LoadBalancer does not serve content globally.• C. ❌ Configure Amazon Cognito for authentication. Implement AWS Lambda for authorization. Use Amazon S3 TransferAcceleration to serve the web application globally. While thisoption uses Cognito and Lambda, S3 Transfer Acceleration is designed for object transfers rather than serving webapplications globally.• D. ❌ Configure AWS Directory Service for Microsoft Active Directory for authentication. Implement Lambda@Edge forauthorization. Use AWS Elastic Beanstalk to serve the webapplication globally. This option uses Active Directory which is not a serverless solution and Elastic Beanstalk is not designed for global content delivery.Question 146 Authenticating Users with Amazon Cognito for S3 AccessA company is hosting a web application from an Amazon S3 bucket. The application uses Amazon Cognito as an identity provider to authenticate users and return a JSON Web Token (JWT) that provides access to protected resources that are storedin another S3 bucket. upon deployment of the application, users report errors and are unable to access the protected content. A solutions architect must resolve this issue by providing proper permissions so that users can access the protected content. which solution meets these requirements?”OptionsA. Update the Amazon Cognito identity pool to assume the properIAM role for access to the protected content.B.Update the S3 ACL to allow the application to access theprotected content.C. Redeploy the application to Amazon S3 to prevent eventuallyconsistent reads in the S3 bucket from affecting the ability of users to access the protected content.D. Update the Amazon Cognito pool to use custom attributemappings within the identity pool and grant users the properpermissions to access the protected content.Key ServiceCognitoKey PointDesign Secure ArchitecturesNote• A. ✅ Update the Amazon Cognito identity pool to assume the proper IAM role for access to the protected content. Thisapproach ensures that the JWT issued by Amazon Cognitohas the necessary permissions to access the protected S3bucket.• B. ❌ Update the S3 ACL to allow the application to access the protected content. This does not address the issue becausethe problem is related to user authentication and authorization, not the application’s direct access to the S3 bucket.• C. ❌ Redeploy the application to Amazon S3 to prevent eventually consistent reads in the S3 bucket from affecting the ability of users to access the protected content. This solution does not solve the authentication issue and is unrelated to the problem at hand.• D. ❌ Update the Amazon Cognito pool to use custom attribute mappings within the identity pool and grant users the proper permissions to access the protected content. While this might help customize the attributes, it does not directly address the need to configure an IAM role for accessing the S3 bucket.。
美国焊接学会 (AWS) 摩迪国际 焊接检验师认证 (CWI
美国焊接学会(AWS)/ 摩迪国际焊接检验技术培训及焊接检验师认证(CWI) 考试焊接检验技术 (WIT) 培训AWS认证在焊接行业倍受推崇。
摩迪经AWS授权组织的培训，其目的是为学员参加CWI考试提供考前训练。
作为焊接行业的权威机构，美国焊接学会(AWS)与摩迪国际此次合作组织的焊接检验技术培训，将对学员进行针对性训练，旨在为焊接行业提供最可信赖的培训、认证。
培训过程中学员将接受实际操作培训及模拟测试，进行专业的考前准备，从而使自己的知识面得到拓展、技能得到提高，并了解熟悉多种有关全行业制造、检验、测试的规范、标准及技术要求。
我们将进行为期一周紧张的考前培训----现只有摩迪提供此培训。
为方便学员，培训及教材有多种语言可供选择。
焊接检验师认证(CWI)如果您的每个员工及每个承包商都获得了认可证书，那么您便不必再为员工不胜任工作而烦恼了。
知晓哪些员工经过了AWS认可，你将在以下方面受益:• 将故障及产品召回事件减至最低;• 在国内外竞争对手面前，大大增加自己的竞争优势；• 减少培训考试方面的费用支出；• 使产品质量得到最大保证；• 提高生产数量及生产效率的同时，使技术及质量保持在理想水平。
通过考试的学员将成为AWS认可的焊接检验师(CWI)，并成为该行业全球精英中的一员，使自己的娴熟技能得到肯定。
经认可的焊接检验师将进入AWS的全球登记系统，同时得到认可的焊接检验师证卡、证书及印章。
同时经认可的焊接检验师的名字将出现在AWS杂志<检验趋势>中，以便本行业相关人员进行参考查证。
如今，为向对方充分展示自己，仅用罗列实际经验的方法远远不够，还需用相关证书来证明你的价值与能力。
AWS要求在进行证书续证及复试时提供近期相关工作经历证明，因此已取得AWS证书的您大可不必为自己失去竞争优势而烦恼。
您亦可由此而接触到上千位在此领域工作年限超过25年的焊接检验师。
焊工、检验员、技术人员及工程师均可成为AWS认可的焊接检验员。
移动云考试题及答案
移动云考试题及答案一、单项选择题（每题2分，共10题）1. 移动云服务中，以下哪项不是云服务的基本特征？A. 按需自助服务B. 随时随地访问C. 网络传输速度D. 资源池化答案：C2. 移动云平台中，以下哪项技术是用于数据存储和管理的？A. 虚拟化技术B. 分布式数据库C. 负载均衡技术D. 内容分发网络答案：B3. 在移动云服务中，以下哪项是衡量服务可用性的关键指标？A. 响应时间B. 成本效益C. 服务水平协议（SLA）D. 数据传输速率答案：C4. 移动云服务中，以下哪项不是云安全的基本要求？A. 数据加密B. 身份认证C. 非法访问D. 访问控制答案：C5. 移动云平台中，以下哪项技术是用于提高网络传输效率的？A. 虚拟私有网络（VPN）B. 内容分发网络（CDN）C. 负载均衡技术D. 虚拟化技术答案：B6. 移动云服务中，以下哪项不是云计算的服务模式？A. IaaS（基础设施即服务）B. PaaS（平台即服务）C. SaaS（软件即服务）D. DaaS（数据即服务）答案：D7. 移动云平台中，以下哪项技术是用于实现资源动态分配的？A. 虚拟化技术B. 负载均衡技术C. 内容分发网络D. 分布式数据库答案：A8. 在移动云服务中，以下哪项是衡量服务性能的关键指标？A. 成本效益B. 响应时间C. 数据传输速率D. 服务水平协议答案：B9. 移动云服务中，以下哪项不是云服务的优势？A. 弹性伸缩B. 快速部署C. 固定成本D. 按需付费答案：C10. 移动云平台中，以下哪项技术是用于提高数据安全性的？A. 负载均衡技术B. 数据加密C. 内容分发网络D. 虚拟化技术答案：B二、多项选择题（每题3分，共5题）1. 移动云服务中，以下哪些是云服务的基本特征？A. 按需自助服务B. 随时随地访问C. 网络传输速度D. 资源池化答案：A、B、D2. 移动云平台中，以下哪些技术是用于数据存储和管理的？A. 虚拟化技术B. 分布式数据库C. 负载均衡技术D. 内容分发网络答案：B3. 在移动云服务中，以下哪些是衡量服务可用性的关键指标？A. 响应时间B. 成本效益C. 服务水平协议（SLA）D. 数据传输速率答案：A、C4. 移动云服务中，以下哪些是云安全的基本要求？A. 数据加密B. 身份认证C. 非法访问D. 访问控制答案：A、B、D5. 移动云平台中，以下哪些技术是用于提高网络传输效率的？A. 虚拟私有网络（VPN）B. 内容分发网络（CDN）C. 负载均衡技术D. 虚拟化技术答案：B、C三、简答题（每题5分，共2题）1. 请简述移动云服务的主要优势。
awsclfc01题库
awsclfc01题库一、介绍AWS CLFC 01题库的背景和意义AWS CLFC 01题库是一套关于云计算领域知识的题目汇编。
随着云计算技术的飞速发展，越来越多的企业和开发者意识到掌握云计算知识的重要性。
AWS CLFC 01题库应运而生，旨在帮助学员全面了解云计算领域的各个方面，提升云计算技能。
二、AWS CLFC 01题库的内容概述AWS CLFC 01题库涵盖了云计算的基础知识、亚马逊网络服务（Amazon Web Services）的详细介绍、云计算最佳实践和案例研究、安全性和可靠性、云计算的成本和性能、自动化和人工智能在云计算中的应用等多个方面。
以下为各部分内容详解：1.云计算基础知识：包括云计算的定义、类型、架构和服务模型等。
2.亚马逊网络服务（Amazon Web Services）：介绍AWS的核心服务，如计算、存储、数据库、网络、分析和人工智能等。
3.云计算最佳实践和案例研究：分析如何在实际场景中应用云计算技术，实现业务目标。
4.安全性和可靠性：讨论云计算环境中的安全问题和应对策略，以及如何确保服务的可靠性和高可用性。
5.云计算的成本和性能：分析如何优化云计算资源的成本和性能，提高投资回报率。
6.自动化和人工智能在云计算中的应用：探讨自动化和人工智能技术在云计算领域的应用和发展趋势。
三、AWS CLFC 01题库的实用性和优势1.全面覆盖云计算领域知识点：AWS CLFC 01题库内容丰富，涵盖云计算的各个方面，可以帮助学员建立全面的云计算知识体系。
2.适用于不同层次的学员：题库难度适中，既适合初学者入门，也适合有一定基础的学员巩固和提升技能。
3.丰富的题型和题量：题库包含多种题型，如选择题、填空题、判断题等，共计数百道题目，满足学员不同需求。
4.实时更新，紧跟行业发展趋势：题库内容紧跟云计算行业的发展，确保学员掌握最新的技术和应用。
5.在线模拟考试，提高备考效率：题库提供在线模拟考试功能，让学员在实际考试环境中检验自己的学习成果。
awsclfc01题库
awsclfc01题库【原创实用版】目录1.AWS CLI 简介2.AWS CLI 题库资源3.AWS CLI 的基本命令4.高级命令和技巧5.AWS CLI 的实践应用正文AWS CLI 是 Amazon Web Services 的命令行工具，它允许用户通过命令行界面与 AWS 服务进行交互。
AWS CLI 提供了数百个命令，涵盖了AWS 服务的各个方面，从基本的资源管理到高级的自动化和编程。
AWS CLI 题库资源是学习 AWS CLI 的一个重要资源，它提供了各种练习题和测试题，帮助用户学习和掌握 AWS CLI 的基本命令和高级命令。
通过练习题和测试题，用户可以了解 AWS CLI 的各种功能和应用场景，提高自己的命令行操作技能。
AWS CLI 的基本命令包括创建资源、删除资源、列出资源、显示资源详细信息等。
例如，用户可以使用 "aws ec2 create-instance" 命令创建一个 EC2 实例，使用 "aws s3 cp" 命令将本地文件上传到 S3 存储桶，使用 "aws lambda list-functions" 命令列出所有的 Lambda 函数等。
除了基本命令，AWS CLI 还提供了许多高级命令和技巧，如使用 AWS CLI 进行自动化操作、使用 AWS CLI 编写脚本和脚本语言等。
例如，用户可以使用 AWS CLI 的 "aws-cli-亍-ance" 模块进行自动化操作，使用AWS CLI 的 "script" 命令编写脚本等。
AWS CLI 的实践应用广泛，可以用于各种场景，如资源管理、自动化操作、编程等。
例如，用户可以使用 AWS CLI 管理 EC2 实例，使用 AWS CLI 编写自动化脚本，使用 AWS CLI 进行编程等。
总的来说，AWS CLI 是一个强大的命令行工具，它提供了各种命令和功能，可以帮助用户管理和操作 AWS 服务。
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1.Select the correct answer for the following questions. Refer to the “Examination Book of Whereare the definitions associated with welding as per AWS D1.1 to be found ? (在AWS D1.1什麼章節中可以找到與焊接有關的定義？)a.ANSI/AWS A2.4b.ANSI/AWS A3.0c.Annex B (附錄B)d. b and c above (上述的b和c)e.All of the above (上述所有的)1.1Safety precautions to be observed during welding to AWS D1.1 are found in (有關在焊接過程中的安全警示在AWS D1.1的哪一章節中？)a.Annex J (附錄J)b.ANSI Z49.1c.Annex K (附錄K)d. a and b above (上述的a和b)e.All of the above (上述所有的)1.2What does the nonstandard term “downhand” mean ? (非標準術語“平焊”表示什麼意思？)a.Welding vertically downward (垂直的從上往下焊)b.Welding in the flat position (在平面位置焊)c.The pause during electrode changes (在換焊條時的停頓)d.The pause of welding during deslagging (在清除焊渣時的焊接停頓)e.None of the above (無上述任何一個)1.3In what year was the first bridge welding specification published by the AWS ? (AWS在哪一年出版了第一本橋樑焊接技術規範？)a.1928b.1934c.1936d.1972e.19881.4Which of the following steels are intended to be used in work convered by D1.1 ? (下列哪種鋼可以在D1.1控制的工作中使用？)a.All alloy steels with a yield strength of 97,000 psi or less (屈服強度等於或小於97,000psi的所有合金)b.Low carbon steels, 5/32in. thick (5/32in厚的低碳鋼)c.Low alloy steel with a yield strength of 970 Mpa (屈服強度為970Mpa的低合金鋼)d.Low carbon stainless steels (低碳不銹鋼)e.None of the above (無上述任何一個)2.1In contract documents, welding symbols without dimensions to indicate groove weld details, are(在合同文件中，指明坡口焊縫細節的沒有尺寸的焊接符號是：)a.Mandatory (強制的)b.Recommended (推薦的)c.Not recommended (不推薦)d.Only to be used when reinforcement is required (只有當有加強要求是使用)e.Only required when joint will be cyclically loaded (只有當接頭周期載荷時要求)2.2Fillet welds on the opposite side of a common plane of contact are required to be (在一接觸的共同平板相反一側的角焊縫要求要：)a.Continuous all around (連續全焊)b.Interrupted at the ends of members (在焊件的端部中斷)c.Interrupted at common corners (在共同角處中斷)d.Boxed (returned) at common corners (在共同角處分隔)e.None of the above (無上述任何一個)2.3What is the maximum size of the fillet welds of a lap joint of member 3/8in. thick ? (焊件厚度為3/8in的搭接接頭的角焊縫的最大尺寸是多少？)a.3/16 inb.1/4 inc.5/16 ind.3/8 ine.Any size at designer’s option except if cyclically loaded (除了如果是循環載荷，設計者可以選任何尺寸)2.4How are transitions in thickness of a groove joint to be made ? (坡口接頭的過渡厚度是：)a.Chamfering the thicker member after welding (在焊接後對較厚件進行倒角)b.By chamfering the thicker member before welding on one side only (在焊接前僅對較厚件的一邊進行倒角)c.By chamfering the thicker member before welding on both sides only (在焊接前僅對較厚件的二邊進行倒角)d.By sloping the weld surface(s) (把焊縫表面加工成斜面過渡)e.All of the above (上述所有的)2.5What is the maximum allowable stress for CJP groove weld metal splicing two ASTM A-36 steelnon-redundant members of equal thickness and width, subject to loading of 2×106 life time stress reversals, assuming the weld reinforcement remains and all such joints are to be radiographed ?(對於連續兩個同樣厚度和寬度的ASTM A-36鋼的非超靜定焊接件，假定保持焊縫加強高並所有如此接頭都要進行射線探傷，在承受2×106連續應力交變載荷下完全熔透坡口焊縫金屬的最大允許應力是多少？)a.7500 psib.10,000 psic.13,500 psid.16,000 psie.18,000 psi3.1What is the minimum tensile strength of steel conforming to ASTM A572, grade 65 ? (符合ASTM A572,65級鋼的最小拉伸強度？)a.60,000 psib.65,000 psic.70,000 psid.75,000 psie.80,000 psi3.2What is the required minimum preheat and interpass temperature for 1 in. thick API 5L grade Bsteel welded with flux cored arc welding ? (對於用藥芯電弧焊接厚度為1in的API 5L, B級鋼的最小預熱及層間溫度是多少？)a.150℉b.100℉c.50℉d.None (無)e.None except if ambient temperature is ≦ 50℉(無，除非如果大氣溫度小於等於50℉)3.3May a groove preparation detailed for SMAW be used unchanged for FACW prequalifiedWPSs (是否用於SMAW坡口詳細準備可以用於FCAW免除評定的WPS而不作任何改變？)a.Yes (可以)b.No (不可以)c.Only if FCAW is used in DCEP mode (只有當藥芯焊絲氣體保護焊為直流反接時)d.Only when welding group I or group II steels are being welded (只有第I和II組別的鋼材焊接時)e.Only at designers option except if joints are statically loaded (設計人員選擇，除非接頭是靜載)3.4What is the range of groove angles for joint designation BC-P8, as fit up ? (BC-P8焊接接頭組裝時的坡口角度範圍是？)a.45° to 55°b.40° to 55°c.35° to 50°d.30° to 45°e.25° to 40°3.5What is the maximum depth of bevel S2 for joint designation B-U3c-S when welding 3-12 in.plate ? (3-1/2英寸厚的板材B-U3c-S形式的接頭坡口深度S2最大是多少？)a.1-1/4 in.b.1-1/8 in.4.1 Plug and slot tests welded in the horizontal position qualify a WPS in what position(s) ? (橫焊位置的塞焊和槽焊評定能覆蓋什麼位置？)a.All (所有的位置)b.Flat and horizontal (平焊和橫焊位置)c.All except overhead (除了仰焊以外的其他位置)d.Horizontal (橫焊)e.None of the above (以上都不對)4.2 A groove weld qualification on 1/2 in. plate qualifies a procedure for what range of thicknesses ?(在1/2英寸板材上進行的坡口焊接工藝評定覆蓋的板材厚度範圍？)a.0 to 1 in.b.0 to 3/4 in.c.1/8 in. to 1 in.d.1/8 in. to 3/4 in.e.None of the above (以上都不對)4.3 What diameters of electrodes are qualified by a procedure test using a 5/64 in. FCAW electrode ?(用5/64英寸藥芯焊絲進行的工藝評定可以覆蓋的焊絲直徑是多少？)a.All diameters (所有直徑的焊絲)b.5/64 in. only (只有5/64英寸直徑的焊絲)c.5/64 in. and smaller (5/64英寸直徑及以下的焊絲)d.5/64 in. and larger (5/64英寸直徑及以上的焊絲)e.none of the above (以上答案都不對)4.4 May a qualified WPS for a CJP groove weld be used to weld PJP grooves ? (某坡口焊縫完全熔透的工藝評定可以用於部分熔透的坡口焊接嗎？)a.Yes (可以)b.No (不可以)c.Only when used for T-groove joints with a superimposed fillet weld (只有用於T型接頭坡口焊縫的多層角焊縫)d.Only if designated weld size is demonstrated by three Macro sections (只有達到指定尺寸的焊縫經過三個宏觀浸蝕試驗驗証)e.Only if designated weld size is checked by on-job macro sections (只有達到指定尺寸的焊縫經過現場宏觀浸蝕試驗驗証)4.5 The minimum length of a T-joint weld test coupon for welder performance qualification is(用於評定焊工的T型接頭角焊縫試樣的最小尺寸是多少？)a.6in.e.8 in. minimum (最小8英寸)5.1 How many times may low hydrogen electrodes be rebaked ? (低氫焊條最多可以重新烘乾幾次？)a.Once (一次)b.Twice (兩次)c.Not limited (沒有限制)d.Not limited , except if coating is damaged (除非藥皮被破壞了)e.Not specified (沒有要求)5.2 What grade or grades of steel should be used for spacers ? (什麼級別的鋼材可以用做嵌條？)a.Any approved (Table 3.1 or Annex M) base metal (所有在表3.1或附錄M被認可的母材)b.Only steels of the 60 ksi class (只有60ksi級別的鋼材)c.Any approved steel matching the weld metal (任何被認可的與母材匹配的鋼材)d.The same as the base metal (與母材相同的鋼材)e.Any grade of steel, as the spacer will be gouged out during welding (任何級別的鋼材。