Subnetting Questions and Answers

Subnetting

Showing 10 of 18 questions
1. Your router has the following IP address on Ethernet0: 172.16.2.1/23. Which of the following can be valid host IDs on the LAN interface attached to the router? 172.16.1.100     172.16.1.198     172.16.2.255     172.16.3.0
  • 1 only
  • 2 and 3 only
  • 3 and 4 only
  • None of the above
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2. Which two statements describe the IP address 10.16.3.65/23?     The subnet address is 10.16.3.0 255.255.254.0.     The lowest host address in the subnet is 10.16.2.1 255.255.254.0.     The last valid host address in the subnet is 10.16.2.254 255.255.254.0.     The broadcast address of the subnet is 10.16.3.255 255.255.254.0.
  • 1 and 3
  • 2 and 4
  • 1, 2 and 4
  • 2, 3 and 4
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3. What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?
  • 14
  • 15
  • 16
  • 30
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4. You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use?
  • 255.255.255.192
  • 255.255.255.224
  • 255.255.255.240
  • 255.255.255.248
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5. 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?
  • 2
  • 3
  • 4
  • 5
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6. If an Ethernet port on a router were assigned an IP address of 172.16.112.1/25, what would be the valid subnet address of this host?
  • 172.16.112.0
  • 172.16.0.0
  • 172.16.96.0
  • 172.16.255.0
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7. You have an interface on a router with the IP address of 192.168.192.10/29. Including the router interface, how many hosts can have IP addresses on the LAN attached to the router interface?
  • 6
  • 8
  • 30
  • 32
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8. What is the subnetwork number of a host with an IP address of 172.16.66.0/21?
  • 172.16.36.0
  • 172.16.48.0
  • 172.16.64.0
  • 172.16.0.0
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9. The network address of 172.16.0.0/19 provides how many subnets and hosts?
  • 7 subnets, 30 hosts each
  • 8 subnets, 8,190 hosts each
  • 8 subnets, 2,046 hosts each
  • 7 subnets, 2,046 hosts each
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10. You need to configure a server that is on the subnet 192.168.19.24/29. The router has the first available host address. Which of the following should you assign to the server?
  • 192.168.19.0 255.255.255.0
  • 192.168.19.33 255.255.255.240
  • 192.168.19.26 255.255.255.248
  • 192.168.19.31 255.255.255.248
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