Question 1
Question
1. 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
Question 2
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?
Question 3
Question
What is the subnetwork address for a host with the IP address 200.10.5.68/28?
Answer
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200.10.5.56
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200.10.5.32
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200.10.5.64
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200.10.5.0
Question 4
Question
The network address of 172.16.0.0/19 provides how many subnets and hosts?
Answer
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7 subnets, 30 hosts each
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7 subnets, 2,046 hosts each
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7 subnets, 8,190 hosts each
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8 subnets, 30 hosts each
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8 subnets, 2,046 hosts each
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8 subnets, 8,190 hosts each
Question 5
Question
Which two statements describe the IP address 10.16.3.65/23? (Choose two.)
Answer
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The subnet address is 10.16.3.0 255.255.254.0.
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The lowest host address in the subnet is 10.16.2.1 255.255.254.0.
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The last valid host address in the subnet is 10.16.2.254 255.255.254.0.D. The broadcast
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address of the subnet is 10.16.3.255 255.255.254.0.
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The network is not subnetted.
Question 6
Question
If a host on a network has the address 172.16.45.14/30, what is the subnetwork this host belongs to?
Answer
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172.16.45.0
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172.16.45.4
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172.16.45.8
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172.16.45.12
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172.16.45.16
Question 7
Question
Which mask should you use on point-to-point links in order to reduce the waste of IP addresses?
Question 8
Question
What is the subnetwork number of a host with an IP address of 172.16.66.0/21?
Answer
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172.16.36.0
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172.16.48.0
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172.16.64.0
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172.16.0.0
Question 9
Question
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?
Question 10
Question
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?
Answer
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192.168.19.0 255.255.255.0
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192.168.19.33 255.255.255.240
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192.168.19.26 255.255.255.248
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192.168.19.31 255.255.255.248
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192.168.19.34 255.255.255.240
Question 11
Question
You have an interface on a router with the IP address of 192.168.192.10/29. What is the broadcast address the hosts will use on this LAN?
Answer
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192.168.192.15
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192.168.192.31
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192.168.192.63
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192.168.192.127
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192.168.192.255
Question 12
Question
You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which classful subnet mask would you use?
Answer
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255.255.255.192
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255.255.255.224
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255.255.255.240
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255.255.255.248
Question 13
Question
You configure a router interface with the IP address 192.168.10.62 255.255.255.192 and
receive the following error:
Bad mask /26 for address 192.168.10.62
Answer
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Why did you receive this error?
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You typed this mask on a WAN link and that is not allowed.
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This is not a valid host and subnet mask combination.
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ip subnet-zero is not enabled on the router.
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The router does not support IP.
Question 14
Question
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 interface?
Answer
-
172.16.112.0
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172.16.0.0
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172.16.96.0
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172.16.255.0
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172.16.128.0
Question 15
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.
Answer
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192.168.10.142
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192.168.10.66
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192.168.100.254
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192.168.10.143
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192.168.10.126
Question 16
Question
Using the illustration from the previous question, what would be the IP address of S0 if you were using the first subnet? The network ID is 192.168.10.0/28 and you need to use the last available IP address in the range. Again, the zero subnet should not be considered valid for this question.
Answer
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192.168.10.24
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192.168.10.62
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192.168.10.30
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192.168.10.127
Question 17
Question
You have a network in your data center that needs 310 hosts. Which mask should you use so you waste the least amount of addresses?
Answer
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255.255.255.0
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255.255.254.0
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255.255.252.0
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255.255.248.0
Question 18
Question
You have a network with a host address of 172.16.17.0/22. From the following options, which is another valid host address in the same subnet?
Answer
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172.16.17.1 255.255.255.252
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172.16.0.1 255.255.240.0
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172.16.20.1 255.255.254.0
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172.16.16.1 255.255.255.240
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172.16.18.255 255.255.252.0
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172.16.0.1 255.255.255.0
Question 19
Question
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? (Choose two.)
Answer
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172.16.0.5
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172.16.1.100
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172.16.1.198
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172.16.2.255
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172.16.3.0
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172.16.3.255
Question 20
Question
Given an IP address 172.16.28.252 with a subnet mask of 255.255.240.0, what is the correct network address?
Answer
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172.16.16.0
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172.16.0.0
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172.16.24.0
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172.16.28.0