Question

A/ Given the following IP address from the Class B address range using the default subnet mask: 100.110.0.0. Your network plan requires no more than 64 hosts on a subnet. When you configure the IP address in Cisco IOS software, which value should you use as the subnet mask?

1. 255.255.0.0
2. 255.255.128.0
3. 255.255.255.128
4. 255.255.255.252

                                   

B/ Identify how many valid host addresses can you have on 192.168.27.32 network with a subnet mask of 255.255.255.240.  

1. (2^4) - 2
2. (2^3) – 2
3. (2^2) - 2
4. (2^1) - 2

C/ A new network is being designed for your company, Acme, Inc. If you use a Class C IP network, which subnet masks will provide one usable subnet per department while allowing enough usable host addresses for each department specified in the table? (Choose three)

Department	Number of Users
Corporate	60
Customer Support	62
Financial	25
HR	5
Engineering	4

1. 255.255.255.0
2. 255.255.255.128
3. 255.255.255.192
4. 255.255.255.224
5. 255.255.255.240
6. 255.255.255.248
7. 255.255.255.252

D/ The network address of 172.16.0.0/20 provides how many subnets and hosts?

1. 7 subnets, 30 hosts each
2. 16 subnets, 8,190 hosts each
3. 16 subnets, 4,094 hosts each
4. 7 subnets, 2,046 hosts each

E/ You need to configure a server that is on the subnet 192.168.19.24/29. The router has the last available host address. Which of the following should you assign to the server?

1. 192.168.19.0 255.255.255.0
2. 192.168.19.33 255.255.255.240
3. 192.168.19.26 255.255.255.248
4. 192.168.19.30 255.255.255.248

F/ On a VLSM network, which mask should you use on point-to-point WAN links to reduce the waste of IP addresses?

1. /27
2. /30
3. /28
4. /29

G/ Which two statements describe the IP address 10.16.3.65/22? (Choose two)

1. The subnet address is 10.16.3.0 255.255.252.0.
2. The lowest host address in the subnet is 10.16.0.1 255.255.252.0.
3. The last valid host address in the subnet is 10.16.3.255 255.255.252.0
4. The broadcast address of the subnet is 10.16.3.255 255.255.252.0.
5. The network is not subnetted.

H/ Which IP addresses are valid for hosts belonging to the 10.1.160.0/20 subnet? (Choose three)

1. 10.1.169.0
2. 10.1.176.1
3. 10.1.175.254
4. 10.1.160.0
5. 10.1.175.255
6. 10.1.160.255

I/ Which one of the following IP addresses is the last valid host in the subnet using mask 255.255.255.192?

1. 192.168.2.60
2. 192.168.2.61
3. 192.168.2.62
4. 192.168.2.63
5. 192.168.2.32

K/ An administrator is working with the 192.168.4.0 network, which has been subnetted with a /27 mask. Which two addresses can be assigned to hosts within the same subnet? (Choose two)

1. 192.168.4.30
2. 192.168.4.31
3. 192.168.4.32
4. 192.168.4.33
5. 192.168.4.36

A/ Given the following IP address from the Class B address range using the default subnet mask: 100.110.0.0. Your network plan requires no more than 64 hosts on a subnet. When you configure the IP address in Cisco IOS software, which value should you use as the subnet mask?

1. 255.255.0.0
2. 255.255.128.0
3. 255.255.255.128
4. 255.255.255.252

                                   

B/ Identify how many valid host addresses can you have on 192.168.27.32 network with a subnet mask of 255.255.255.240.  

1. (2^4) - 2
2. (2^3) – 2
3. (2^2) - 2
4. (2^1) - 2

C/ A new network is being designed for your company, Acme, Inc. If you use a Class C IP network, which subnet masks will provide one usable subnet per department while allowing enough usable host addresses for each department specified in the table? (Choose three)

Department	Number of Users
Corporate	60
Customer Support	62
Financial	25
HR	5
Engineering	4

1. 255.255.255.0
2. 255.255.255.128
3. 255.255.255.192
4. 255.255.255.224
5. 255.255.255.240
6. 255.255.255.248
7. 255.255.255.252

D/ The network address of 172.16.0.0/20 provides how many subnets and hosts?

1. 7 subnets, 30 hosts each
2. 16 subnets, 8,190 hosts each
3. 16 subnets, 4,094 hosts each
4. 7 subnets, 2,046 hosts each

E/ You need to configure a server that is on the subnet 192.168.19.24/29. The router has the last available host address. Which of the following should you assign to the server?

1. 192.168.19.0 255.255.255.0
2. 192.168.19.33 255.255.255.240
3. 192.168.19.26 255.255.255.248
4. 192.168.19.30 255.255.255.248

F/ On a VLSM network, which mask should you use on point-to-point WAN links to reduce the waste of IP addresses?

1. /27
2. /30
3. /28
4. /29

G/ Which two statements describe the IP address 10.16.3.65/22? (Choose two)

1. The subnet address is 10.16.3.0 255.255.252.0.
2. The lowest host address in the subnet is 10.16.0.1 255.255.252.0.
3. The last valid host address in the subnet is 10.16.3.255 255.255.252.0
4. The broadcast address of the subnet is 10.16.3.255 255.255.252.0.
5. The network is not subnetted.

H/ Which IP addresses are valid for hosts belonging to the 10.1.160.0/20 subnet? (Choose three)

1. 10.1.169.0
2. 10.1.176.1
3. 10.1.175.254
4. 10.1.160.0
5. 10.1.175.255
6. 10.1.160.255

I/ Which one of the following IP addresses is the last valid host in the subnet using mask 255.255.255.192?

1. 192.168.2.60
2. 192.168.2.61
3. 192.168.2.62
4. 192.168.2.63
5. 192.168.2.32

K/ An administrator is working with the 192.168.4.0 network, which has been subnetted with a /27 mask. Which two addresses can be assigned to hosts within the same subnet? (Choose two)

1. 192.168.4.30
2. 192.168.4.31
3. 192.168.4.32
4. 192.168.4.33
5. 192.168.4.36

Answer 1

A)

b) 255.255.128.0

Explanation: For 64 hosts, we need 8 host bits, i.e., 11111111.11111111.11111111.00000000 is sufficient.

B) a) 2⁴ - 2

Explanation:

255.255.255.240 = 11111111.11111111.11111111.11110000

No. of hosts = 2⁴ - 2

D) 16 subnets, 4,094 hosts each

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