8. [CxNx] Which of the following information will "show cdp neighbors detail" reveal? (Choose all that apply.) a) Router Platform Answer I have configured the neighbor Router_C with a secondary address: Router_C#sh %SYS-5-CONFIG_I: Configured from console by . console ip in s0 Serial0 is up, line protocol is up Internet address is 192.68.5.10/24 Broadcast address is 255.255.255.255 Address determined by setup command MTU is 1500 bytes Helper address is not set Directed broadcast forwarding is enabled Secondary address 12.12.12.1/24 Outgoing access list is not set Inbound access list is not set Proxy ARP is enabled Security level is default Split horizon is enabled ICMP redirects are always sent ICMP unreachables are always sent ICMP mask replies are never sent IP fast switching is enabled IP fast switching on the same interface is . enabled IP multicast fast switching is enabled Router Discovery is disabled IP output packet accounting is disabled IP access violation accounting is disabled TCP/IP header compression is disabled Probe proxy name replies are disabled Gateway Discovery is disabled Policy routing is disabled Network address translation is disabled The result of the show cdp command: Router_B#sh cdp %SYS-5-CONFIG_I: Configured from console by . consolenei det ------------------------- Device ID: Router_C Entry address(es): IP address: 192.68.5.10 Platform: cisco 2500, Capabilities: Router Interface: Serial0, Port ID (outgoing ... port): Serial0 Holdtime : 169 sec Version : Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-J-L), Version . 11.2(3), RELEASE SOFTWARE (fc2) Copyright (c) 1986-1996 by cisco Systems, ... Inc. Compiled Mon 30-Dec-96 21:28 by ajchopra
9. [xINx] What would the class and major network be for the IP address 191.12.45.254? (Choose one.) a) Class B, 191.12.45.0 Answer First Octet Rules: - If the first bit is 0, it's a
Class A address. The above rules provide us with the following ranges: Class A 1 - 126 10. [xINx] What statement about the IP address 0.10.10.10 is most correct? (Choose one.) a) This a Class A address. Answer First Octet Rules: - If the first bit is 0, it's a
Class A address The above rules provide us with the following ranges: Class A 1 - 126 Refer to the following attempt to assign the above illegal address: Router_C>en Router_C#config t Enter configuration commands, one per line. . End with CNTL/Z. Router_C(config)#int e0 Router_C(config-if)#ip address 0.10.10.10 ... 255.255.255.0 Not a valid host address - 0.10.10.10 Router_C(config-if)#
a) 65,534 Answer A class C address provides us with a maximum of 8 host bits, which is, of course, the fourth octet. The formula of 2N -2 (where n is the total number of host bits) provides us with the total number of hosts. The reason why we subtract two addresses for the total number of host is as follows: - When all the host bits are set to
0, the resulting address is the address of the wire. Now using our formula, 28-2 = 254
12. [xINx] The Class addresses that an administrator would most likely assign to a host are: (Choose one.) a) Class A and B addresses only Answer Class D addresses are multicast
addresses.
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