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Home Networking Security See What Others Are Saying!
  • Question
  • You need to create an access list that will prevent hosts in the network range of 192.168.160.0 to 192.168.191.0. Which of the following lists will you use?


  • Options
  • A. access-list 10 deny 192.168.160.0 255.255.224.0
  • B. access-list 10 deny 192.168.160.0 0.0.191.255
  • C. access-list 10 deny 192.168.160.0 0.0.31.255
  • D. access-list 10 deny 192.168.0.0 0.0.31.255

  • Correct Answer
  • access-list 10 deny 192.168.160.0 0.0.31.255 

    Explanation
    The range of 192.168.160.0 to 192.168.191.0 is a block size of 32. The network address is 192.168.160.0 and the mask would be 255.255.224.0, which for an access list must be a wildcard format of 0.0.31.255. The 31 is used for a block size of 32. The wildcard is always one less than the block size.

  • More questions

    • 1. You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use?

    • Options
    • A. 255.255.255.192
    • B. 255.255.255.224
    • C. 255.255.255.240
    • D. 255.255.255.248
    • Discuss
    • 2. Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational?

    • Options
    • A. frame-relay arp
    • B. frame-relay map
    • C. frame-relay interface-dci
    • D. frame-relay lmi-type
    • Discuss
    • 3. What VTP mode allows you to change VLAN information on the switch?

    • Options
    • A. Client
    • B. STP
    • C. Server
    • D. Transparent
    • Discuss
    • 4. The network address of 172.16.0.0/19 provides how many subnets and hosts?

    • Options
    • A. 7 subnets, 30 hosts each
    • B. 8 subnets, 8,190 hosts each
    • C. 8 subnets, 2,046 hosts each
    • D. 7 subnets, 2,046 hosts each
    • Discuss
    • 5. Which command will allow you to see real-time translations on your router?

    • Options
    • A. show ip nat translations
    • B. show ip nat statistics
    • C. debug ip nat
    • D. clear ip nat translations *
    • Discuss
    • 6. Which of the following is an IEEE standard for frame tagging?

    • Options
    • A. ISL
    • B. 802.3Z
    • C. 802.1Q
    • D. 802.3U
    • Discuss
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. What is the frequency range of the IEEE 802.11g standard?

    • Options
    • A. 2.4Gbps
    • B. 5Gbps
    • C. 2.4GHz
    • D. 5GHz
    • Discuss


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