This scenario uses a configuration taken from a working Cisco IOS router and tests your skills with DNS, TFTP, NTP, and SNMP. Example 2-14 displays the configuration of a Cisco router named R1.
Example 2-14 R1 Running Configuration version 12.1 hostname R1 clock timezone UTC 10 !
no ip domain-lookup ip domain-name cisco.com ip host CCIE 22.214.171.124 ip host Router3 126.96.36.199 ip host Router2 188.8.131.52 ip host Router1 184.108.40.206 ip name-server 220.127.116.11 ip name-server 18.104.22.168 interface Ethernet0/0 ip address 22.214.171.124 255.255.255.0
interface Serial0/0 ip address 126.96.36.199 255.255.255.252 ntp broadcast
no ip http server snmp-server community public RO snmp-server community public RW snmp-server host 188.8.131.52 isdn line con 0 !
ntp authentication-key 1 md5 121A061E17 7 ntp authenticate ntp trusted-key 1 ntp master 1
ntp peer 184.108.40.206 key 1
1. What happens when a network administrator types the host name Router1 at the router prompt? (Select the best two answers.)
a. DNS queries are disabled; nothing will be translated.
b. The name Router1 is mapped to the IP address 220.127.116.11.
c. The administrator could also type CCIE to reach the same IP address (18.104.22.168).
d. Because DNS is disabled with the command no ip domain-lookup, the router assumes that this is an invalid Cisco IOS command and returns the error "% Unknown command or computer name, or unable to find computer address."
e. Local DNSs are case-sensitive so you can only type Router1 to map to 22.214.171.124.
2. The following commands are entered on the router named R1. What are the TFTP server address and TFTP filename stored on the router on board flash?
R1#copy tftp flash
Address or name of remote host ? 126.96.36.199
Source filename ? c2600-jo3s56i-mz.121-5.T10.bin
Destination filename [c2600-jo3s56i-mz.121-5.T10.bin]? c2600-c1
3. R1 supplies an NTP clock source to a remote router. What is the NTP peer IP address, and what is the MD5 password used to ensure that NTP sessions are authenticated?
4. What is the SNMP read-write access community string for the following configuration?
snmp-server community public RO snmp-server community publiC RW
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