CCNA4 v4.0 Final Practical

1What are two characteristics of DSL technology? (Choose two.)Uploads typically offer larger transfer rates than downloads.Service providers deploy DSL in the local loop of the telephone network.DSL download rates are reduced by large volumes of POTS voice traffic.Filters and splitters allow POTS and DSL traffic to share the same medium.DSL is a shared medium that allows many users to share bandwidth available from the DSLAM.2When configuring remote access to a router, what is the significance of the no password command on a VTY line?Logins are prevented on that line.No password is required to log in to that line.The remote user is not allowed to change the password for that line.The remote user is prompted to change the line password after connecting to the router.3Which three items are LCP options that can be configured for PPP? (Choose three.)CHAPStackerIPCPCDPCPMultilink4An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local m address successfully from a remote network and can successfully resolve the mail server name to an IP address via th e us nslookup command. At what layer of the OSI model is the problem most likely to be found?applicationtransportnetworkdata link5Which combination of Layer 2 protocol and authentication should be used to establish a link between a Cisco and a non-Ci without sending authentication information in plain text?HDLC with PAPHDLC with CHAPPPP with PAPPPP with CHAP6At what physical location does the responsibility for a WAN connection change from the service provider to the user?DMZlocal loopCSU/DSUdemarcation point7Refer to the exhibit. An ACL numbered 101 already exists on this router. What happens if the network administrator issues commands that are shown in the exhibit?The new ACL overwrites the existing ACL.The network administrator will receive an error message.The existing ACL is modified to include the new commands.A second ACL that is numbered 101 is created and contains only the new commands.8Which important piece of troubleshooting information can be discovered about a serial interface using the show controllersqueuing strategyserial cable typeinterface IP addressencapsulation method9Refer to the exhibit. A network administrator is using two routers to test a WAN connection . What can be concluded based o of the show running-config commands?The WAN link is using PPP encapsulation.The WAN link speed is faster than a T1 line.The router R2 serves as the DCE for the WAN link.The WAN link is configured with the Cisco default encapsulation protocol.10Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch off VLSM is not being used. Which subnet mask will allow the most efficient utilization of IP addresses?/21/22/23/24/25/2611 A company uses a PVC with a committed information rate (CIR) of 128 kb/s and a committed burst information rate (CBIR)The link is used to periodically send updates at a rate of 144 kb/s. What will happen to the update traffic?The traffic will be sent, but the company will be charged a penalty.The traffic will be sent using the additional CBIR and will be guaranteed delivery.The traffic will be dropped at the CO for exceeding the committed information rate.The traffic will be sent, but the burst traffic will be marked for discard if congestion is encountered.12Which wildcard mask would specify all IP addresses from 192.168.8.0 through 192.168.15.255?0.0.0.70.0.7.2550.0.8.2550.0.15.2550.0.255.25513Refer to the exhibit. An administrator has added the exhibited commands to routers A and B, but no routing updates are ex between the two routers. Based on the information that is given, what is the likely cause of the problem?Router A is advertising the wrong network.The authentication key strings do not match.The serial interfaces of routers A and B are not on the same network.The authentication key numbers do not match the EIGRP process number for both routers.14Refer to the exhibit. A network technician has been called in to resolve a problem with this network segment. The symptom loss of connectivity throughout the network segment, high link utilization, and syslog messages that indicate constant MAC relearning. What is the likely cause of these symptoms?cable faultfaulty NIC cardIP addressing errorspanning tree problemNAT configuration error15Refer to the exhibit. The SSH connections between the remote user and the server are failing. The correct configuration of been verified. What is the most likely cause of the problem?SSH is unable to pass through NAT.There are incorrect access control list entries.The access list has the incorrect port number for SSH.The ip helper command is required on S0/0/0 to allow inbound connections.16Refer to the exhibit. Which two statements correctly describe how Router1 processes an FTP request that enters interface destined for an FTP server at IP address 192.168.1.5? (Choose two.)The packet does not match an access list condition.The router matches the incoming packet to the statement that is created from the access-list 201 permit ip any anyThe router matches the incoming packet to the statement that is created from the access-list 101 permit ip any 192.0.0.0.255 command.The router matches the incoming packet to the statement that is created from the access-list 201 deny icmp 192.1680.0.0.255 any17Refer to the exhibit. Which statement is true about the WAN switch device?It uses a multiport internetworking device to switch traffic such as Frame Relay, ATM or X.25 over the WAN.It provides internetworking and WAN access interface ports that are used to connect to the service provider network.It provides termination for the digital signal and ensures connection integrity through error correction and line monitorinIt converts the digital signals produced by a computer into voice frequencies that can be transmitted over the analog l public telephone network.18Refer to the exhibit. You are a network administrator who has been tasked with completing the Frame Relay topology that in two remote sites. How should the point-to-point subinterfaces be configured on HQ to complete the topology?HQ(config-subif)#frame-relay interface-dlci 103 on Serial 0/0/0.1HQ(config-subif)#frame-relay interface-dlci 203 on Serial 0/0/0.2HQ(config-subif)#frame-relay interface-dlci 301 on Serial 0/0/0.1HQ(config-subif)# frame-relay interface-dlci 302 on Serial 0/0/0.2HQ(config-subif)#frame-relay map ip 172.16.1.1 103 broadcast on Serial 0/0/0.1HQ(config-subif)#frame-relay map ip 172.16.2.2 203 broadcast on Serial 0/0/0.2HQ(config-subif)#frame-relay map ip 172.16.1.1 301 broadcast on Serial 0/0/0.1HQ(config-subif)#frame-relay map ip 172.16.2.2 302 broadcast on Serial 0/0/0.219What effect would the Router1(config-ext-nacl)# permit tcp 172.16.4.0 0.0.0.255 any eq www command have when implem inbound on the f0/0 interface?All TCP traffic is permitted, and all other traffic is denied.The command is rejected by the router because it is incomplete.All traffic from 172.16.4.0/24 is permitted anywhere on any port.Traffic originating from 172.16.4.0/24 is permitted to all TCP port 80 destinations.20What is a major characteristic of a worm?malicious software that copies itself into other executable programstricks users into running the infected softwarea set of computer instructions that lies dormant until triggered by a specific eventexploits vulnerabilities with the intent of propagating itself across a network21At what point in the PPP connection process does the authentication phase occur?after NCP establishes Layer 3 parametersbefore LCP begins the link establishment processafter the initial Configure-Request message from the link initiatorafter the link initiator receives a Configure-Ack message from the responder22Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC office of ABC C the Orlando office?MAC address of the Orlando routerMAC address of the DC router192.168.1.25192.168.1.26DLCI 100DLCI 20023What is the function of an IDS?to report the attack after it happensto stop the attack prior to its completionto quarantine the virus or worm so as not to infect any other hostto reconfigure the security policy of a firewall to prevent another attack24 A network administrator added two switches and a new VLAN over the past weekend. How can the administrator determineadditions and changes improved performance and availability on the company intranet?Perform a baseline test and compare the current values to values that were obtained in previous weeks.Interview departmental secretaries and determine if they think load time for web pages is improved.Compare the hit counts on the company web server for the current week to the values that were recorded from previoPerformance on the intranet can be determined by monitoring load times of company web pages from remote sites. 25Refer to the exhibit. In the partial router configuration that is shown, what is the purpose of access list BLOCK_XYZ?to prevent source IP address spoofing by hosts on the Fa0/0 LANto block access by Fa0/0 LAN hosts to all network services beyond the routerto prevent users on the Fa0/0 LAN from opening Telnet sessions on the routerto secure Fa0/0 hosts by allowing only locally sourced traffic into the Fa0/0 LAN26Which wireless solution can provide mobile users with non line-of-sight broadband Internet access at speeds comparable t cable?Wi-FiWiMAXsatelliteMetro Ethernet27What does an access control list determine when used with NAT on a Cisco router?addresses that are to be translatedaddresses that are assigned to a NAT pooladdresses that are allowed out of the routeraddresses that are accessible from the inside network28Refer to the exhibit. What is the effect of the extended ACL when applied inbound on the S0/0/0 interface on R2?All IP traffic will be permitted during the specified days and time range.Both IP and Telnet traffic will be permitted during the specified days and time range.Only Telnet traffic destined for 172.16.10.0/24 will be permitted during the specified days and time range.Telnet traffic will be permitted only during the specified days and time range. All other network traffic w ill be permitted 29Which statement is true about an interface that is configured with the IPv6 address command?IPv6 traffic-forwarding is enabled on the interface.A link-local IPv6 address is automatically configured on the interface.A global unicast IPv6 address is dynamically configured the interface.Any IPv4 addresses that are assigned to the interface are replaced with an IPv6 address.30Refer to the exhibit. Which statement is true about the status of the Frame Relay connection?The Frame Relay connection is in the process of negotiation.Only packets with control bit DE set are sent over the PVC. No data traffic traverses the link.Packets marked as FECN and BECN indicate that a congestion control mechanism is enabled on the Frame Relay PVThe “DLCI USAGE = LOCAL” status indicates that the PVC link is not established between the interface S0/0/0.1 and Relay switch.31What three statements describe the roles of devices in a WAN? (Choose three.)A CSU/DSU terminates a digital local loop.A modem terminates a digital local loop.A CSU/DSU terminates an analog local loop.A modem terminates an analog local loop.A router is commonly considered a DTE device.A router is commonly considered a DCE device.32 A company has its headquarters office in Dallas and five branch offices located in New York, Chicago, Los Angeles, SeattlAtlanta. WAN links are used for communications among offices in six sites. In planning the WAN links, the network designe requirements: (1) minimize cost and (2) provide a certain level of WAN link reliabili ty with redundant links. Which topology s network designer recommend?starfull meshhierarchicalpartial mesh33Which address provides an example of an IPv6 link-local address?FE80::1324:ABCD2001:2345:AB12:1935::FEFF2001:1234:0000:9CA::0876/641234:ABCD:5678:EF00:9234:AA22:5527:FC3534Refer to the exhibit. The network administrator creates a standard access control list to prohibit traffic from the 192.168.1.0 from reaching the 192.168.2.0/24 network while still permitting Internet access for all networks. On which router interface a direction should it be applied?interface fa0/0/0, inboundinterface fa0/0/0, outboundinterface fa0/0/1, inboundinterface fa0/0/1, outbound35 A network technician accidentally deleted the IOS image from flash and rebooted the router. Which two options can be usethe IOS image? (Choose two.)Perform a system restore through SDM.Download the image from a TFTP server through a network connection.Download the image from a TFTP server through a console connection.Establish an FTP session through an SSH connection for the image download.Use the Xmodem protocol to download the image through a console connection.36Refer to the exhibit. A packet is being sent from Host A to Host B through the VPN tunnel between R1 and R3. When the p arrives at R3, what are the source and destination IP addresses of the packet?Source 192.168.1.2 - Destination 192.168.4.2Source 192.168.3.1 - Destination 192.168.3.2Source 192.168.2.1 - Destination 192.168.3.2Source 192.168.3.1 - Destination 192.168.4.237Refer to the exhibit. Router1 and Router2 each support separate areas of a data center, and are connected via a crossover Resources attached to Router1 are unable to connect to resources attached to Router2. What is the likely cause?The crossover cable is faulty.The IP addressing is incorrect.There is a Layer 2 problem with the router connection.The upper layers are experiencing an unspecified problem.One or both of the Ethernet interfaces are not working correctly.38Which two functions are provided by the Local Management Interface (LMI) that is used in Frame Relay networks? (Choosflow controlerror notificationcongestion notificationthe mapping of DLCIs to network addressesthe sending of keepalive packets to verify operation of the PVC39What will be the result of adding the command ip dhcp excluded-address 172.16.4.1 172.16.4.5 to the configuration of a that has been configured as a DHCP server?Traffic that is destined for 172.16.4.1 and 172.16.4.5 will be dropped by the router.Traffic will not be routed from clients with addresses between 172.16.4.1 and 172.16.4.5.The DHCP server function of the router will not issue the addresses between 172.16.4.1 and 172.16.4.5.The router will ignore all traffic that comes from the DHCP servers with addresses 172.16.4.1 and 172.16.4.5.40Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives th message that is shown in the exhibit, and cannot ping the TFTP server from R1. What action can help to isolate this probleCheck that R1 has a route to the 10.10.10.0 network.Verify that the TFTP server software supports binary file transfers.Make sure that the TFTP server has 192.168.1.1 as its default gateway.Ensure that the laptop has an IP address in the 192.168.1.0/24 network.41Refer to the exhibit. Branch A has a Cisco router. Branch B has a non-Cisco router set for IETF encapsulation. After the co shown are entered, R2 and R3 fail to establish the PVC. The R2 LMI is Cisco, and the R3 LMI is ANSI. The LMI is success established at both locations. Why is the PVC failing?The PVC to R3 must be point-to-point.LMI types must match on each end of a PVC.The ietf parameter is missing from the frame-relay map ip 10.10.10.3 203 command.The PVCs at R2 use different encapsulation types. A single port can only support one encapsulation type.42Refer to the exhibit. Why are the routers unable to establish a PPP session?The usernames are misconfigured.The IP addresses are on different subnets.The clock rate is configured on the wrong end of the link.The CHAP passwords must be different on the two routers.Interface serial 0/0/0 on Router1 must connect to interface serial 0/0/1 on Router2.43 A system administrator must provide Internet connectivity for ten hosts in a small remote office. The ISP has assigned twoaddresses to this remote office. How can the system administrator configure the router to provide Internet access to all ten same time?Configure static NAT.Configure dynamic NAT.Configure static NAT with overload.Configure dynamic NAT with overload.44While configuring a router using RIPng and dual-stack technology with IPv4 and IPv6, the administrator receives an error m inputting IPv4 routes. What could cause the error message?IPv4 is not compatible with RIPngRIPng is incompatible with dual-stack technology.The router interfaces have been configured with incorrect addresses.When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are shut down in favor of the newer tec 45What will be the result of the enable secret command when added at the global configuration mode on the router?It will use MD5 encryption to protect the privileged EXEC level access.It will use type 7 encryption and will encrypt only the privileged EXEC level passwords.It will use type 7 encryption to prevent all passwords that are displayed on the screen from being readable.It will use MD5 encryption to protect the passwords that are only used in the PAP and CHAP authentication process. 46Refer to the exhibit. Which VLAN will carry untagged traffic on FastEthernet 0/1?VLAN 1VLAN 2VLAN 11VLAN 12VLAN 30VLAN 99947Refer to the exhibit. A technician is teaching a trainee to interpret the results of various Frame Relay troubleshooting comm conclusion can be drawn from the output that is shown?Neighboring routers should use DLCI 177 to reach the Branch router.DLCI 177 will be used to identify all broadcasts that are sent out the Branch router.The Branch router has the address 192.168.3.1 configured for the S0/0/0 interface.To reach 192.168.3.1, the Branch router will use the virtual circuit that is identified by DLCI 177.48Refer to the exhibit. What would be the result of entering the exhibited configuration on a Frame Relay router?The local interface DLCI will be set to 102.All traffic that is destined to 172.16.16.8 will be sent as broadcast.Only broadcast traffic will be recieved on the Frame Relay interface.Routing protocol multicast updates can be forwarded across the Frame Relay PVC.49Refer to the exhibit. Routers R1 and R2 are both configured for single area OSPF. Users who are connected to switch S1 a access database applications that run on servers that are connected to S2. The network engineer is working remotely and information that is shown in the exhibit to direct initial troubleshooting efforts. Based on the exhibit, which OSI layer is the m appropriate to start with for a divide-and-conquer approach?network layerapplication layerdata-link layerphysical layer50Refer to the exhibit. A host that is connected to Fa0/0 is unable to acquire an IP address dynamically from the DHCP server. The output of the debug ip dhcp server command shows "DHCPD: there is no address pool for 172.16.1.1".What is the problem?The default router for the 172Network pool is incorrect.The 172.16.1.1 address is already configured on Fa0/0.The pool of addresses for the 172Network pool is incorrect.The ip helper-address command should be implemented on the Fa0/0 interface.。