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Home Networking Subnetting See What Others Are Saying!
  • Question
  • You have a network that needs 29 subnets while maximizing the number of host addresses available on each subnet. How many bits must you borrow from the host field to provide the correct subnet mask?


  • Options
  • A. 2
  • B. 3
  • C. 4
  • D. 5

  • Correct Answer


  • Explanation
    A 240 mask is 4 subnet bits and provides 16 subnets, each with 14 hosts. We need more subnets, so let's add subnet bits. One more subnet bit would be a 248 mask. This provides 5 subnet bits (32 subnets) with 3 host bits (6 hosts per subnet). This is the best answer.

  • More questions

    • 1. How many collision domains are created when you segment a network with a 12-port switch?

    • Options
    • A. 1
    • B. 2
    • C. 5
    • D. 12
    • Discuss
    • 2. What is the maximum distance with maximum data rate for 802.11g?

    • Options
    • A. About 65-75 feet
    • B. About 90-100 feet
    • C. About 150 feet
    • D. Over 200 feet
    • Discuss
    • 3. Which of the following commands will allow you to set your Telnet password on a Cisco router?

    • Options
    • A. line telnet 0 4
    • B. line aux 0 4
    • C. line vty 0 4
    • D. line con 0
    • Discuss
    • 4. 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
    • 5. 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
    • 6. What VTP mode allows you to change VLAN information on the switch?

    • Options
    • A. Client
    • B. STP
    • C. Server
    • D. Transparent
    • Discuss
    • 7. 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
    • 8. 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
    • 9. Which of the following is an IEEE standard for frame tagging?

    • Options
    • A. ISL
    • B. 802.3Z
    • C. 802.1Q
    • D. 802.3U
    • Discuss
    • 10. 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


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