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Home Networking Subnetting See What Others Are Saying!
  • Question
  • Using the following illustration, what would be the IP address of E0 if you were using the eighth subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. The zero subnet should not be considered valid for this question.
    Using the following illustration, what would be the IP address of E0 if you were using the eighth su


  • Options
  • A. 192.168.10.142
  • B. 192.168.10.66
  • C. 192.168.100.254
  • D. 192.168.10.143
  • E. 192.168.10.126

  • Correct Answer
  • 192.168.10.142 

    Explanation
    A /28 is a 255.255.255.240 mask. Let's count to the ninth subnet (we need to find the broadcast address of the eighth subnet, so we need to count to the ninth subnet). Starting at 16 (remember, the question stated that we will not use subnet zero, so we start at 16, not 0), 16, 32, 48, 64, 80, 96, 112, 128, 144. The eighth subnet is 128 and the next subnet is 144, so our broadcast address of the 128 subnet is 143. This makes the host range 129-142. 142 is the last valid host.

  • More questions

    • 1. You have created a named access list called Blocksales. Which of the following is a valid command for applying this to packets trying to enter interface s0 of your router?

    • Options
    • A. (config)# ip access-group 110 in
    • B. (config-if)# ip access-group 110 in
    • C. (config-if)# ip access-group Blocksales in
    • D. (config-if)# blocksales ip access-list in
    • Discuss
    • 2. What multicast addresses does RIPng use?

    • Options
    • A. FF02::A
    • B. FF02::9
    • C. FF02::5
    • D. FF02::6
    • Discuss
    • 3. What is the maximum distance running the lowest data rate for 802.11a?

    • Options
    • A. About 100 feet
    • B. About 175 feet
    • C. About 300 feet
    • D. About 350 feet
    • Discuss
    • 4. Which of the following is considered to be the destination host before translation?

    • Options
    • A. Inside local
    • B. Outside local
    • C. Inside global
    • D. Outside global
    • Discuss
    • 5. Which router command allows you to view the entire contents of all access lists?

    • Options
    • A. show all access-lists
    • B. show access-lists
    • C. show ip interface
    • D. show interface
    • Discuss
    • 6. Which layer 4 protocol is used for a Telnet connection?

    • Options
    • A. IP
    • B. TCP
    • C. TCP/IP
    • D. UDP
    • Discuss
    • 7. What protocol does PPP use to identify the Network layer protocol?

    • Options
    • A. NCP
    • B. ISDN
    • C. HDLC
    • D. LCP
    • Discuss
    • 8. What command will permit SMTP mail to only host 1.1.1.1?

    • Options
    • A. access-list 10 permit smtp host 1.1.1.1
    • B. access-list 110 permit ip smtp host 1.1.1.1
    • C. access-list 10 permit tcp any host 1.1.1.1 eq smtp
    • D. access-list 110 permit tcp any host 1.1.1.1 eq smtp
    • Discuss
    • 9. The Corporate router receives an IP packet with a source IP address of 192.168.214.20 and a destination address of 192.168.22.3. Looking at the output from the Corporate router, what will the router do with this packet?
      Corp#sh ip route
      [output cut]
      R    192.168.215.0 [120/2] via 192.168.20.2, 00:00:23, Serial0/0
      R    192.168.115.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0
      R    192.168.30.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0
      C    192.168.20.0 is directly connected, Serial0/0
      C    192.168.214.0 is directly connected, FastEthernet0/0

    • Options
    • A. The packet will be discarded.
    • B. The packet will be routed out the S0/0 interface.
    • C. The router will broadcast looking for the destination.
    • D. The packet will be routed out the Fa0/0 interface.
    • Discuss
    • 10. Which statement(s) about IPv4 and IPv6 addresses are true?

      1. An IPv6 address is 32 bits long, represented in hexidecimal.
      2. An IPv6 address is 128 bits long, represented in decimal.
      3. An IPv4 address is 32 bits long, represented in decimal.
      4. An IPv6 address is 128 bits long, represented in hexidecimal.

    • Options
    • A. 1 and 3 only
    • B. 2 only
    • C. 3 and 4
    • D. 2 and 4
    • Discuss


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