Ccna4 Final 1

1. What functionality do access control lists provide in the implementation of dynamic NAT ona Cisco router?define which addresses can be translateddefine which addresses are assigned to a NAT pooldefine which addresses are allowed out the routerdefine which addresses can be accessed from the inside network

2. Which three guidelines would help contribute to creating a strong password policy?(Choose three.)Once a good password is created, do not change it.Deliberately misspell words when creating passwords.Create passwords that are at least 8 characters in length.Use combinations of upper case, lower case, and special characters.Write passwords in locations that can be easily retrieved to avoid being locked out.Use long words found in the dictionary to make passwords that are easy to remember.

3.

Refer to the exhibit. Every time the administrator reboots this router, the boot process ends insetup mode. What is a possible problem?There is insufficient RAM for the IOS to load on this router.A password recovery process should be done on this router.The bootstrap version and the version of the IOS are different.The IOS image is damaged and must be reloaded using tftpdnld.The configuration register is set to ignore the startup configuration.

4. Which option correctly defines the capacity through the local loop guaranteed to acustomer by the service provider?BEDECIRCBIR

5.

CCNA Exam Answers | CCNA Packet Tracer Help: CCNA 4 Final Ex... http://ccnaxploration.blogspot.fr/2012/10/ccna-4-final-exam-v40-answe...

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Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from theDHCP server. The output of the debug ip dhcp server command shows "DHCPD: there isno address pool for 10.1.1.1". What is the problem?The 10.1.1.1 address is already configured on Fa0/0.The default router for the 10Network pool is incorrect.The ip helper-address must be added to Fa0/0 interface.The pool of addresses for the 10Network pool is incorrect.

6. Which data link layer encapsulation protocol is used by default for serial connectionsbetween two Cisco routers?ATMFrame RelayHDLCPPPSDLC

7.

Refer to the exhibit. Which statement correctly describes how Router1 processes an FTPrequest that enters interface s0/0/0 and is destined for an FTP server at IP address192.168.1.5?The router matches the incoming packet to the statement that was created by theaccess-list 201 deny icmp 192.168.1.0 0.0.0.255 any command, continues comparing thepacket to the remaining statements in ACL 201 to ensure that no subsequent statementsallow FTP, and then the router drops the packet.The router reaches the end of ACL 101 without matching a condition and drops the packetbecause there is no statement that was created by the access-list 101 permit ip any anycommand.The router matches the incoming packet to the statement that was created by theaccess-list 101 permit ip any 192.168.1.0 0.0.0.255 command and allows the packet intothe router.It matches the incoming packet to the statement that was created by the access-list 201permit ip any any command and allows the packet into the router.

8. Compared with IDS systems, what can IPS systems do to provide further protection of


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computer systems?detect potential attacksstop the detected attack from executingupdate OS patches for computer systemsscan computer systems for viruses and spyware

9. Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP atspeeds comparable to DSL and cable?Wi-FisatelliteWiMAXMetro Ethernet

10. A network administrator has changed the VLAN configurations on his network switchesover the past weekend. How can the administrator determine if the additions and changesimproved performance and availability on the company intranet?Conduct a performance test and compare with the baseline that was established previously.Interview departmental secretaries and determine if they think load time for web pages hasimproved.Determine performance on the intranet by monitoring load times of company web pages fromremote sites.Compare the hit counts on the company web server for the current week to the values thatwere recorded in previous weeks.

11.

Refer to the exhibit. What is the meaning of the term dynamic in the output of the command?The bandwidth capability of the interface increases and decreases automatically based onBECNs.The Serial0/0/1 interface acquired 172.16.3.1 from a DHCP server.The mapping between DLCI 100 and 172.16.3.1 was learned through Inverse ARP.DLCI 100 will automatically adapt to changes in the Frame Relay cloud.

12. Which type of ACL will permit traffic inbound into a private network only if an outboundsession has already been established between the source and destination?extendedreflexivestandardtime-based

13. Which two statements are true about IPv6 link local addresses? (Choose two.)They begin with the 2000::/3 prefix.They begin with the FE80::/10 prefix.They are assigned by IANA to an organization.They must be manually configured by the administrator.They are assigned to a host by a stateless autoconfiguration process.

14. A company is looking for a WAN solution to connect its headquarters site to four remotesites. What are two advantages that dedicated leased lines provide compared to a sharedFrame Relay solution? (Choose two.)reduced jitterreduced costsreduced latencythe ability to burst above guaranteed bandwidththe ability to borrow unused bandwidth from the leased lines of other customers

15.


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Refer to the exhibit. A network administrator is trying to connect R1 remotely to makeconfiguration changes. Based on the exhibited command output, what will be the result whenattempting to connect to R1?failure to connect due to Telnet not being enabledfailure to connect due to incomplete configuration for Telneta successful connection and ability to make configuration changesa successful connection but inability to make configuration changes because of the absenceof an enable secret password

16. What are two effective measures for securing routers? (Choose two.)Protect all active router interfaces by configuring them as passive interfaces.Configure remote administration through VTY lines for Telnet access.Use quotes or phrases to create pass phrases.Disable the HTTP server service.Enable SNMP traps.

17. An issue of response time has recently arisen on an application server. The new releaseof a software package has also been installed on the server. The configuration of the networkhas changed recently. To identify the problem, individuals from both teams responsible forthe recent changes begin to investigate the source of the problem. Which statement appliesto this situation?Scheduling will be easy if the network and software teams work independently.It will be difficult to isolate the problem if two teams are implementing changes independently.Results from changes will be easier to reconcile and document if each team works inisolation.Only results from the software package should be tested as the network is designed toaccommodate the proposed software platform.

18.


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Refer to the exhibit. From the output of the show interfaces and ping commands, at whichlayer of the OSI model is a fault indicated?applicationtransportnetworkdata linkphysical

19. Which technology is used to dynamically map next hop, network layer addresses tovirtual circuits in a Frame Relay network?Inverse ARPLMIDLCIFECN

20. An administrator learns of an e-mail that has been received by a number of users in thecompany. This e-mail appears to come from the office of the administrator. The e-mail asksthe users to confirm their account and password information. Which type of security threatdoes this e-mail represent?crackingphishingphreakingspamming

21.

Refer to the exhibit. Which data transmission technology is being represented?TDMPPPHDLCSLIP

22.


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Refer to the exhibit. Results of the show vlan and show vtp status commands for switchesS1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missingfrom S2?There is a Layer 2 loop.The VTP domain names do not match.Only one switch can be in server mode.S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

23. What is the result of adding the global command service password-encryption to theconfiguration of a router?Line passwords are encrypted with type 7 encryption.Enable passwords are encrypted with type 5 encryption.All services must provide an encrypted password to function.Only encrypted messages are allowed for router communication.

24. While troubleshooting a problem with an e-mail server, an administrator observes that theswitch port used by the server shows "up, line protocol up". The administrator cannot pingthe server. At which layer of the OSI model is the problem most likely to be found?application layernetwork layerdata link layerphysical layer

25. Where does a service provider assume responsibility from a customer for a WANconnection?local loopDTE cable on routerdemarcation pointdemilitarized zone

26. What will be the result of adding the command ip dhcp excluded-address 192.168.24.1192.168.24.5 to the configuration of a local router that has been configured as a DHCPserver?Traffic that is destined for 192.168.24.1 and 192.168.24.5 will be dropped by the router.Traffic will not be routed from clients with addresses between 192.168.24.1 and192.168.24.5.The DHCP server will not issue the addresses ranging from 192.168.24.1 to 192.168.24.5.The router will ignore all traffic that comes from the DHCP servers with addresses192.168.24.1 and 192.168.24.5.

27.


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Refer to the exhibit. Partial results of the show access-lists and show ip interfaceFastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs ineffect. Host A is unable to telnet to host B. Which action will correct the problem but stillrestrict other traffic between the two networks?Apply the ACL in the inbound direction.Apply the ACL on the FastEthernet 0/0 interface.Reverse the order of the TCP protocol statements in the ACL.Modify the second entry in the list to permit tcp host 172.16.10.10 any eq telnet .

28.

Refer to the exhibit. The corporate network that is shown has been assigned network172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be usedfor addressing hosts at Branch4 with minimal waste from unused addresses?/19/20/21/22/23/24

29.


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Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 andR3 have not received any RIP routing updates. What will fix the issue?Enable RIP authentication on R2.Issue the ip directed-broadcast command on R2.Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.Enable CDP on R2 so that the other routers will receive routing updates.

30.

Refer to the exhibit. This serial interface is not functioning correctly. Based on the outputshown, what is the most likely cause?improper LMI typeinterface resetPPP negotiation failureunplugged cable

31. Which statement is true about PAP in the authentication of a PPP session?PAP uses a two-way handshake.The password is unique and random.PAP conducts periodic password challenges.PAP uses MD5 hashing to keep the password secure.

32. An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. Theadministrator receives an error message when trying to enter the IPv4 routes into RIPng.What is the cause of the problem?When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses areover-written in favor of the newer technology.Incorrect IPv4 addresses are entered on the router interfaces.RIPng is incompatible with dual-stack technology.IPv4 is incompatible with RIPng.

33. What is tunneling?using digital certificates to ensure that data endpoints are authenticcreating a hash to ensure the integrity of data as it traverses a networkusing alternate paths to avoid access control lists and bypass security measures


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encapsulating an entire packet within another packet for transmission over a network

34. Which statement is true about NCP?Link termination is the responsibility of NCP.Each network protocol has a corresponding NCP.NCP establishes the initial link between PPP devices.NCP tests the link to ensure that the link quality is sufficient.

35.

Refer to the exhibit. A network administrator is creating a prototype to verify the new WANdesign. However, the communication between the two routers cannot be established. Basedon the output of the commands, what can be done to solve the problem?Replace the serial cable .Replace the WIC on RA.Configure RA with a clock rate command.Issue a no shutdown interface command on RB.

36.

Refer to the exhibit. Based on the output as shown, which two statements correctly definehow the router will treat Telnet traffic that comes into interface FastEthernet 0/1? (Choosetwo).Telnet to 172.16.10.0/24 is denied.Telnet to 172.16.20.0/24 is denied.Telnet to 172.16.0.0/24 is permitted.Telnet to 172.16.10.0/24 is permitted.Telnet to 172.16.20.0/24 is permitted.

37. Which Frame Relay flow control mechanism is used to signal routers that they shouldreduce the flow rate of frames?DEBECIRFECNCBIR

38.


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40.

Refer to the exhibit. What can be concluded from the exhibited output of the debug ip natcommand?The 10.1.1.225 host is exchanging packets with the 192.168.0.10 host.The native 10.1.200.254 address is being translated to 192.168.0.10.The 192.168.0.0/24 network is the inside network.Port address translation is in effect.

41. A network administrator is instructing a technician on best practices for applying ACLs.Which suggestion should the administrator provide?Named ACLs are less efficient than numbered ACLs.Standard ACLs should be applied closest to the core layer.ACLs applied to outbound interfaces are the most efficient.Extended ACLs should be applied closest to the source that is specified by the ACL.

42.

Refer to the exhibit. Headquarters is connected through the Internet to branch office A andbranch office B. Which WAN technology would be best suited to provide secure connectivitybetween headquarters and both branch offices?ATMVPNISDNFrame Relaybroadband DSL

43. Which three physical network problems should be checked when a bottom-uptroubleshooting approach has been chosen to troubleshoot network performance? (Choosethree.)cable connectivityhigh collision counts


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STP failures and loopsaddress mapping errorshigh CPU utilization ratesexcess packets that are filtered by the firewall

44.

Refer to the exhibit. A network administrator is attempting to configure a Frame Relaynetwork. The administrator enters the commands as shown in the exhibit on R2, but theFrame Relay PVCs are inactive. What is the problem?The incorrect DLCI numbers are being configured on R2.The S0/0/0 interface on R2 needs to be point-to-point.The frame-relay map commands are missing the cisco keyword at the end.A single router interface cannot connect to more than one Frame Relay peer at a time.

45. Which IP address and wildcard mask would be used in an ACL to block traffic from allhosts on the same subnet as host 192.168.16.43/28?access-list 10 deny 192.168.16.0 0.0.0.31access-list 10 deny 192.168.16.16 0.0.0.31access-list 10 deny 192.168.16.32 0.0.0.16access-list 10 deny 192.168.16.32 0.0.0.15access-list 10 deny 192.168.16.43 0.0.0.16

46. Which combination of Layer 2 protocol and authentication should be used to establish alink without sending authentication information in plain text between a Cisco and a non-Ciscorouter?PPP with PAPPPP with CHAPHDLC with PAPHDLC with CHAP

47. When would the multipoint keyword be used in Frame Relay PVCs configuration?when global DLCIs are in usewhen using physical interfaceswhen multicasts must be supportedwhen participating routers are in the same subnet

48. A network technician analyzes the network and notices late collisions. The collisionsoccur accompanied by jabber that originates from the server. What is the likely cause of theproblem?faulty switch portweb server CPU overloadfaulty NIC in the web servermisconfiguration of web server services

49.


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Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host Ahas sent a packet to the web server. What is the destination IP address of the return packetfrom the web server?10.1.1.2:1234172.30.20.1:1234172.30.20.1:3333192.168.1.2:80

50.

Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to pingthe default gateway. What is the cause of the problem?The default gateway is in the wrong subnet.STP has blocked the port that PC1 is connected to.Port Fa0/2 on S2 is assigned to the wrong VLAN.S2 has the wrong IP address assigned to the VLAN30 interface.

51. When Frame Relay encapsulation is used, what feature provides flow control andexchanges information about the status of virtual circuits?LCPLMIDLCIInverse ARP

52. A network administrator is tasked with maintaining two remote locations in the same city.Both locations use the same service provider and have the same service plan for DSLservice. When comparing download rates, it is noticed that the location on the East side oftown has a faster download rate than the location on the West side of town. How can this beexplained?The West side has a high volume of POTS traffic.The West side of town is downloading larger packets.The service provider is closer to the location on the East side.More clients share a connection to the DSLAM on the West side.


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Ccna4 Final 1

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