CCNA 2 Chapter 11 v5.03

1. 1Typically, which network device would be used to perform NAT for a corporate environment?

   1. ADHCP server
   2. Bhost device
   3. Crouter
   4. Dserver
   5. Eswitch
2. 2Which type of NAT maps a single inside local address to a single inside global address?

   1. Adynamic
   2. Bstatic
   3. Cport address translation
   4. Doverloading
3. 3Several key servers in an organization must be directly accessible from the Internet. What addressing policy should be implemented for these servers?

   1. AUse dynamic NAT to provide addresses for the servers.
   2. BPlace all of the servers in their own Class C private subnet.
   3. CUse DHCP to assign addresses from the pool of Class B addresses.
   4. DAssign static internal addresses and public external addresses to each of the servers.
4. 4What is a disadvantage of NAT?

   1. AThere is no end-to-end addressing.
   2. BThe router does not need to alter the checksum of the IPv4 packets.
   3. CThe internal hosts have to use a single public IPv4 address for external communication.
   4. DThe costs of readdressing hosts can be significant for a publicly addressed network.
5. 5Refer to the exhibit. What has to be done in order to complete the static NAT configuration on R1?

   

   1. AR1 should be configured with the command ip nat inside source static 209.165.200.1 192.168.11.11.
   2. BR1 should be configured with the command ip nat inside source static 209.165.200.200 192.168.11.11.
   3. CInterface S0/0/0 should be configured with the command ip nat outside.
   4. DInterface Fa0/0 should be configured with the command no ip nat inside.
6. 6Refer to the exhibit. R1 is configured for NAT as displayed. What is wrong with the configuration?

   

   1. AAccess-list 1 is misconfigured.
   2. BNAT-POOL2 is not bound to ACL 1.
   3. CInterface Fa0/0 should be identified as an outside NAT interface.
   4. DThe NAT pool is incorrect.
7. 7Which statement accurately describes dynamic NAT?

   1. AIt always maps a private IP address to a public IP address.
   2. BIt provides an automated mapping of inside local to inside global IP addresses.
   3. CIt provides a mapping of internal host names to IP addresses.
   4. DIt dynamically provides IP addressing to internal hosts.
8. 8A network administrator configures the border router with the command R1(config)# ip nat inside source list 4 pool corp. What is required to be configured in order for this particular command to be functional?

   1. Aa NAT pool named corp that defines the starting and ending public IP addresses
   2. Ban access list named corp that defines the private addresses that are affected by NAT
   3. Can access list numbered 4 that defines the starting and ending public IP addresses
   4. Dip nat outside to be enabled on the interface that connects to the LAN affected by the NAT
   5. Ea VLAN named corp to be enabled and active and routed by R1
9. 9When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?

   1. ANo users can access the server.
   2. BThe request to the server for the seventh user fails.
   3. CAll users can access the server.
   4. DThe first user gets disconnected when the seventh user makes the request.
10. 10Refer to the exhibit. What will be the effect of entering the command that is shown in the exhibit on R2 as part of the dynamic NAT configuration?

    

    1. AIt will define a pool of addresses for translation.
    2. BIt will identify an inside NAT interface.
    3. CIt will bind NAT-POOL1 with ACL 1.
    4. DIt will define the source ACL for the external interface.

11. 11A network engineer has configured a router with the command ip nat inside source list 4 pool corp overload. Why did the engineer use the overload option?

    1. AThe company has more private IP addresses than available public IP addresses.
    2. BThe company needs to have more public IP addresses available to be used on the Internet.
    3. CThe company router must throttle or buffer traffic because the processing power of the router is not enough to handle the normal load of external-bound Internet traffic.
    4. DThe company has a small number of servers that should be accessible by clients from the Internet.
12. 12Refer to the exhibit. What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco broadband router?

    

    1. Adefines which addresses can be translated
    2. Bdefines which addresses are allowed into the router
    3. Cdefines which addresses are assigned to a NAT pool
    4. Ddefines which addresses are allowed out of the router
13. 13What is the purpose of port forwarding?

    1. APort forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN.
    2. BPort forwarding allows users to reach servers on the Internet that are not using standard port numbers.
    3. CPort forwarding allows an internal user to reach a service on a public IPv4 address that is located outside a LAN.
    4. DPort forwarding allows for translating inside local IP addresses to outside local addresses.
14. 14What is a characteristic of unique local addresses?

    1. AThey allow sites to be combined without creating any address conflicts.
    2. BThey are designed to improve the security of IPv6 networks.
    3. CTheir implementation depends on ISPs providing the service.
    4. DThey are defined in RFC 3927.
15. 15Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?

    

    1. Adynamic NAT with a pool of two public IP addresses
    2. BPAT using an external interface
    3. Cstatic NAT with one entry
    4. Dstatic NAT with a NAT pool
16. 16Refer to the exhibit. The NAT configuration applied to the router is as follows:
    ERtr(config)# access-list 1 permit 10.0.0.0 0.255.255.255
    ERtr(config)# ip nat pool corp 209.165.201.6 209.165.201.30 netmask 255.255.255.224
    ERtr(config)# ip nat inside source list 1 pool corp overload
    ERtr(config)# ip nat inside source static 10.10.10.55 209.165.201.4
    ERtr(config)# interface gigabitethernet 0/0
    ERtr(config-if)# ip nat inside
    ERtr(config-if)# interface serial 0/0/0
    ERtr(config-if)# ip nat outside
    Based on the configuration and the output shown, what can be determined about the NAT status within the organization?

    

    1. ANAT is working.
    2. BStatic NAT is working, but dynamic NAT is not.
    3. CDynamic NAT is working, but static NAT is not.
    4. DNot enough information is given to determine if both static and dynamic NAT are working.
17. 17Using NAT terminology, what is the address of the source host on a private network as seen from inside the network?

    1. Ainside local
    2. Binside global
    3. Coutside global
    4. Doutside local
18. 18What is the primary purpose of NAT?

    1. Aconserve IPv4 addresses
    2. Bincrease network security
    3. Callow peer-to-peer file sharing
    4. Denhance network performance
19. 19What is an advantage of deploying IPv4 NAT technology for internal hosts in an organization?

    1. Amakes internal network access easy for outside hosts using UDP
    2. Bprovides flexibility in designing the IPv4 addressing scheme
    3. Cincreases the performance of packet transmission to the Internet
    4. Denables the easy deployment of applications that require end-to-end traceability
20. 20Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30 assigned to the external interface on the router that connects to the Internet?

    1. Aaccess-list 1 permit 10.0.0.0 0.255.255.255
       ip nat inside source list 1 interface serial 0/0/0 overload
    2. Baccess-list 1 permit 10.0.0.0 0.255.255.255
       ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
       ip nat inside source list 1 pool comp
    3. Caccess-list 1 permit 10.0.0.0 0.255.255.255
       ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
       ip nat inside source list 1 pool comp overload
    4. Daccess-list 1 permit 10.0.0.0 0.255.255.255
       ip nat pool comp 192.168.2.1 192.168.2.8 netmask 255.255.255.240
       ip nat inside source list 1 pool comp overload
       ip nat inside source static 10.0.0.5 209.165.200.225
21. 21What are two of the required steps to configure PAT? (Choose two.)

    1. ADefine a pool of global addresses to be used for overload translation.
    2. BCreate a standard access list to define applications that should be translated.
    3. CDefine the range of source ports to be used.
    4. DIdentify the inside interface.
    5. EDefine the hello and interval timers to match the adjacent neighbor router.
22. 22A network administrator is configuring a static NAT on the border router for a web server located in the DMZ network. The web server is configured to listen on TCP port 8080. The web server is paired with the internal IP address of 192.168.5.25 and the external IP address of 209.165.200.230. For easy access by hosts on the Internet, external users do not need to specify the port when visiting the web server. Which command will configure the static NAT?

    1. AR1(config)# ip nat inside source static tcp 192.168.5.25 80 209.165.200.230 8080
    2. BR1(config)# ip nat inside source static tcp 192.168.5.25 8080 209.165.200.230 80
    3. CR1(config)# ip nat inside source static tcp 209.165.200.230 80 192.168.5.25 8080
    4. DR1(config)# ip nat inside source static tcp 209.165.200.230 8080 192.168.5.25 80
23. 23Fill in the blank. Do not use abbreviations.
    NAT overload is also known as [blank_start]Port Address Translation[blank_end]
    

    1. APort Address Translation
24. 24Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
    What problem is causing PC-A to be unable to communicate with the Internet?
    

    1. AThe static route should not reference the interface, but the outside address instead.
    2. BThis router should be configured to use static NAT instead of PAT.
    3. CThe ip nat inside source command refers to the wrong interface.
    4. DThe access list used in the NAT process is referencing the wrong subnet.
    5. EThe NAT interfaces are not correctly assigned.
25. 25Match the steps with the actions that are involved when an internal host with IP address 192.168.10.10 attempts to send a packet to and external server at the IP address 209.165.200.254 across a router R1 that running dynamic NAT. (Not all options are used.)

    

    1. A_____________Step 1
    2. B_____________Step 2
    3. C_____________Step 3
    4. D_____________Step 4
    5. E_____________Step 5

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sophomore CCNA 2 Quiz on CCNA 2 Chapter 11 v5.03, created by Christina Evans on 25/04/2016.

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Christina Evans

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