Ccna certification Practice Tests

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 39.  B.  The local second method should always be configured. This will ensure that if the 

router’s connection to the AAA server is down, you can still gain access to diagnose or 

repair. If properly secured, a second method of local authentication does not create a 

backdoor because it creates a backup of authentication. The local second method is not 

required, but it is a good idea so that you can log in during outages of the AAA server.

 40.  A.  A captive portal will allow you to require all guests to register for wireless Internet 

access before granting them access. When they connect to the Service Set Identifier (SSID), 

they will be presented with the captive portal web page. An AAA server is required if 

you have a list of already established users and want to authenticate them via the AAA 

server. Extended service set (ESS) is two or more access points covering a common SSID 

or serving multiple SSIDs. Radio resource management (RRM) is a service on the wireless 

LAN controller (WLC) that adjusts the radio output and channels used by an ESS.

 41.  D.  When an IP address is configured on a router’s interface, the network is automatically 

put into the routing table. The IP address is also added to the routing table. When the 

routing table changes, this normally tells the routing protocol it should perform an update.

 42.  A.  In the routing table there is a static route for 192.168.4.0/24 via Serial 0/0/1. Interface 

Serial 0/0/0 has a route of 172.16.0.0/16 configured. The IP gateway of 192.168.4.1 does 

not appear in the exhibit. Interface Serial 0/2/0 has a route of 10.0.0.0/8 configured.

 43.  C.  The route will exit the Serial 0/2/0 interface, since the gateway of last resort is set 

to Serial 0/2/0. This statement is identified by the 

S* 0.0.0.0/0 entry. Interface Serial 

0/1/1 has a route of 198.23.24.0/24 configured. Interface Serial 0/0/1 has a route of 

192.168.1.0/24 configured. Because there is a gateway of last resort configured, any route 

not specifically in the route table will follow the gateway of last resort.

 44.  C.  The administrative distance (AD) of Open Shortest Path First (OSPF) is 110. The 

administrative distance of Internal Enhanced Interior Gateway Routing Protocol (EIGRP) 

is 90. The administrative distance of the legacy routing protocol of Interior Gateway 

Routing Protocol (IGRP) is 100. The administrative distance of Routing Information 

Protocol (RIP) is 120.

 45.  A.  The command 

show ip protocols will display the next interval when RIPv2 

advertisements are sent out. The command 

show ip rip database is incorrect. The 

command 

show ip rip is incorrect. The command show ip interface is incorrect.

 46.  D.  The command 

debug ip rip will allow you to see advertisements in real time. The 

command 

show ip protocols is incorrect. The command debug rip is incorrect. The 

command 

show ip rip is incorrect.

 47.  B.  The three Class C networks need to be advertised separately. RIPv2 uses the default 

class network mask when configuring networks. The command 

network 192.168.0.0 

is incorrect as it will not advertise the individual networks of 192.168.1.0, 192.168.2.0, 

and 192.168.3.0. The command 

network 192.168.0.0/16 is incorrect. The command 

network 192.168.0.0 0.0.255.255 is incorrect.

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