Ccna certification Practice Tests

343

 7.  A.  After you define the inside and outside for each respective interface, the command 

ip 

nat inside source static 192.168.1.3 179.43.44.1 will statically NAT (network 

address translation) the inside local address of 192.168.1.3 to the inside global address 

of 179.43.44.1. The command 

nat source static 192.168.1.3 179.43.44.1 is 

incorrect. The command 

ip nat static 192.168.1.3 179.43.44.1 is incorrect. The 

command 

ip nat source static 192.168.1.3 179.43.44.1 is incorrect.

 8.  D.  The command 

ip nat pool EntPool 179.43.44.2 179.43.44.15 netmask 

255.255.255.0 will configure the pool called EntPool with the range of IP addresses from 

179.43.44.2 to 179.43.44.15 and the network mask of /24. The /24 is used in lieu of the 

/28 because the serial interface is a /24, and therefore, all IP addresses in that network 

are /24. The command 

ip nat pool EntPool 179.43.44.0/28 is incorrect. The 

command 

ip pool EntPool 179.43.44.2 179.43.44.15 netmask 255.255.255.0 is 

incorrect. The command 

ip nat pool EntPool 179.43.44.1 179.43.44.15 netmask 

255.255.255.240 is incorrect because the serial interface is a /24 IP address.

 9.  B.  The access list is used to identify IP addresses that are allowed to pass through the 

NAT process; these are considered the inside local addresses. The access list does not 

restrict incoming access from the outside global. The access list does not restrict outgoing 

access from the outside local. The access list does not restrict outgoing access from the 

inside global.

 10.  C.  The command 

clear ip nat translation * will clear all IP NAT translations out 

of the NAT table. The asterisk is used as a wildcard for all addresses. You can alternatively 

specify a specific inside or outside NAT address. The command 

no ip nat translation 

is incorrect. The command 

clear ip nat translation is incorrect. The command 

clear ip nat is incorrect.

 11.  B.  The command 

debug ip nat will allow you to see real-time NAT translations. When 

you issue this command, you should know that each NAT translation will log to the screen 

or logging server and will spike CPU usage. The command 

show ip translations is 

incorrect. The command 

debug ip translations is incorrect. The command show ip 

nat is incorrect.

 12.  C.  The first command required is 

access-list 1 permit 192.168.1.0 0.0.0.255, 

which defines the allowed networks. The next command creates the NAT pool with 

ip 

nat pool EntPool 179.43.44.1 179.43.44.1 netmask 255.255.255.0. The last 

command, 

ip nat inside source list 1 pool EntPool overload, ties the access list 

together with the pool and defines PAT with the overload command. All other command 

configurations are incorrect.

 13.  A.  The command 

ntp server 129.6.15.28 will configure your router to connect 

to the server 129.6.15.28 as an NTP source. This command must be entered in global 

configuration mode. The command 

ntp server 129.6.15.28 entered from the Router# 

prompt (Privileged Exec mode) is incorrect. The command 

ntp client 129.6.15.28 is 

incorrect. The command 

ntp client 129.6.15.28 entered from the Router# prompt  

is incorrect.

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