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  • Question
  • You want to create a standard access list that denies the subnet of the following host: 172.16.198.94/19. Which of the following would you start your list with?


  • Options
  • A. access-list 10 deny 172.16.192.0 0.0.31.255
  • B. access-list 10 deny 172.16.0.0 0.0.255.255
  • C. access-list 10 deny 172.16.172.0 0.0.31.255
  • D. access-list 10 deny 172.16.188.0 0.0.15.255

  • Correct Answer
  • access-list 10 deny 172.16.192.0 0.0.31.255 

    Explanation
    First, you must know that a /19 is 255.255.224.0, which is a block size of 32 in the third octet. Counting by 32, this makes our subnet 192 in the third octet, and the wildcard for the third octet would be 31 since the wildcard is always one less than the block size.

  • More questions

    • 1. Which of the following is an IEEE standard for frame tagging?

    • Options
    • A. ISL
    • B. 802.3Z
    • C. 802.1Q
    • D. 802.3U
    • Discuss
    • 2. Which command will display all the EIGRP feasible successor routes known to a router?

    • Options
    • A. show ip routes *
    • B. show ip eigrp summary
    • C. show ip eigrp topology
    • D. show ip eigrp adjacencies
    • Discuss
    • 3. Which of the following encapsulates PPP frames in Ethernet frames and uses common PPP features like authentication, encryption, and compression?

    • Options
    • A. PPP
    • B. PPPoA
    • C. PPPoE
    • D. Token Ring
    • Discuss
    • 4. What flavor of Network Address Translation can be used to have one IP address allow many users to connect to the global Internet?

    • Options
    • A. NAT
    • B. Static
    • C. Dynamic
    • D. PAT
    • Discuss
    • 5. What is the frequency range of the IEEE 802.11g standard?

    • Options
    • A. 2.4Gbps
    • B. 5Gbps
    • C. 2.4GHz
    • D. 5GHz
    • Discuss
    • 6. Which class of IP address has the most host addresses available by default?

    • Options
    • A. A
    • B. B
    • C. C
    • D. A and B
    • Discuss
    • 7. How many non-overlapping channels are available with 802.11a?

    • Options
    • A. 3
    • B. 12
    • C. 23
    • D. 40
    • Discuss
    • 8. You have the following routing table. Which of the following networks will not be placed in the neighbor routing table?
      R    192.168.30.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0
      C    192.168.40.0/24 is directly connected, Serial0
           172.16.0.0/24 is subnetted, 1 subnets
      C    172.16.30.0 is directly connected, Loopback0
      R    192.168.20.0/24 [120/1] via 192.168.40.1, 00:00:12, Serial0
      R    10.0.0.0/8 [120/15] via 192.168.40.1, 00:00:07, Serial0
      C    192.168.50.0/24 is directly connected, Ethernet0

    • Options
    • A. 172.16.30.0
    • B. 192.168.30.0
    • C. 10.0.0.0
    • D. All of them will be placed in the neighbor routing table.
    • Discuss
    • 9. 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
    • 10. What multicast addresses does RIPng use?

    • Options
    • A. FF02::A
    • B. FF02::9
    • C. FF02::5
    • D. FF02::6
    • Discuss


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