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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. 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
    • 2. 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
    • 3. 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
    • 4. 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
    • 5. What VTP mode allows you to change VLAN information on the switch?

    • Options
    • A. Client
    • B. STP
    • C. Server
    • D. Transparent
    • Discuss
    • 6. 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
    • 7. 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
    • 8. Which of the following is an IEEE standard for frame tagging?

    • Options
    • A. ISL
    • B. 802.3Z
    • C. 802.1Q
    • D. 802.3U
    • Discuss
    • 9. 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
    • 10. 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


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