Question 1

As the network engineer, you are given the following IP address information: 172.16.8.159 / 255.255.255.192. Identify the broadcast address.&#10;A) 172.16.255.255&#10;B) 172.16.8.127&#10;C) 172.16.8.191&#10;D) 172.16.8.255

Accepted Answer

C) The correct answer is 172.16.8.191 because the resident subnet ID in this case is 172.16.8.128.28. You can find the subnet broadcast address based on the subnet ID and mask using several methods; if we follow the decimal process in the book, in the mask 255.255.255.192, we make the interesting octet be octet 4, with magic number 256 - 192 = 64. For the three octets where the mask = 255, copy the subnet ID (172.16.8). For the interesting octet, take the subnet ID value (128), add magic (64), and subtract 1, for.191. That makes the subnet broadcast address 172.16.8.255.

Question 2

As the network engineer, you're shown the following IP address information: 192.168.10.33 / 255.255.255.248. Identify the broadcast address.&#10;A) 192.168.10.40&#10;B) 192.168.10.255&#10;C) 192.168.255.255&#10;D) 192.168.10.39

Accepted Answer

D) The correct answer is 192.168.10.39 because the resident subnet ID in this case is 192.168.10.32. You can find the subnet broadcast address based on the subnet ID and mask using several methods; if we follow the decimal process in the book, in the mask 255.255.255.248, we make the interesting octet be octet 4, with magic number 256 - 248 = 8. For the three octets where the mask = 255, copy the subnet ID (192.168.10). For the interesting octet, take the subnet ID value (32), add magic (8), and subtract 1, for.39. 39. That makes the subnet broadcast address 192.168.10.39.

Question 3

Which of the following is the resident subnet for the IP address 192.168.10.33/29?&#10;A) 192.168.10.24&#10;B) 192.168.10.32&#10;C) 192.168.10.40&#10;D) 192.168.10.48

Accepted Answer

B) The correct answer is 192.168.10.32 because, first, the resident subnet (the subnet ID of the subnet in which the address resides) must be numerically smaller than the IP address, which rules out two of the answers. The mask (/29) converts to 255.255.255.248. You can copy the first three octets of the IP address because of their value, 255. 55. For the fourth octet, the subnet ID value must be a multiple of 8 (magic number) because 256 - 248 (mask) = 8. Those multiples include 24 and 32, and the correct choice is the multiple closest to the IP address value in that octet (33) without going over. So, the correct subnet ID is 192.168.10.32.

Question 4

Which of the following is the resident subnet for the IP address 187.225.25.48/20?&#10;A) 187.225.48.0&#10;B) 187.225.32.0&#10;C) 187.225.16.0&#10;D) 187.225.0.0

Accepted Answer

C) The correct answer is 187.225.16.0 because, first, the resident subnet (the subnet ID of the subnet in which the address resides) must be numerically smaller than the IP address, which rules out two of the answers. The mask converts to 255.255.240.0. As such, you can copy the first two octets of the IP address because of their value, 255. 55. For the third and fourth octet, the subnet ID value must be a multiple of 16 (magic number) because 256 - 240 (mask) = 16. Those multiples include 0 and 16, and the correct choice is the multiple closest to the IP address value in that octet (25.48) without going over. So, the correct subnet ID is 187.225.16.0.

Question 5

Which of the following is the broadcast address for the subnet in which IP address 200.10.5.68/28 resides?&#10;A) 200.10.5.31&#10;B) 200.10.5.47&#10;C) 200.10.5.79&#10;D) 200.10.5.95

Accepted Answer

C) The correct answer is 200.10.5.79 because, first, the resident subnet (the subnet ID of the subnet in which the address resides) must be numerically larger than the IP address, which rules out two of the answers. The mask converts to 255.255.255.240. As such, you can copy the first three octets of the IP address because of their value, 255. 55. For the fourth octet, the subnet ID value must be a multiple of 16 (magic number) because 256 - 240 (mask) = 16. Those multiples include 48 and 64, and the correct choice is the multiple closest to the IP address value in that octet (68) without going over. So, the correct subnet ID is 200.10.5.64, which makes its broadcast address 200.10.5.79.

Question 6

You are given the IP address 200.1.1.130 and the mask 255.255.255.224. Identify the subnet number.&#10;A) 200.1.1.96&#10;B) 200.1.1.128&#10;C) 200.1.1.160&#10;D) 200.1.1.192

Accepted Answer

B) The correct answer is 200.1.1.128 because, first, the resident subnet (the subnet ID of the subnet in which the address resides) must be numerically smaller than the IP address, which rules out two of the answers. You can copy the first three octets of the IP address because of their value, 255. 55. For the fourth octet, the subnet ID value must be a multiple of 32 (magic number) because 256 - 224 (mask) = 32. Those multiples include 96 and 128, and the correct choice is the multiple closest to the IP address value in that octet (130) without going over. So, the correct subnet ID is 200.1.1.128.28.

Question 7

You have an interface on a router with the IP address 192.168.192.113/29. What is the broadcast address the hosts will use on this LAN?&#10;A) 192.198.192.111&#10;B) 192.168.192.119&#10;C) 192.168.192.127&#10;D) 192.168.192.135

Accepted Answer

B) The correct answer is 192.168.192.119 because the resident subnet ID in this case is 192.168.192.112. You can find the subnet broadcast address based on the subnet ID and mask using several methods. If you follow the decimal process in the book, the /29 converts to the mask 255.255.255.248, making the interesting octet be octet 4 with magic number 256 - 248 = 8. For the three octets where the mask = 255, copy the subnet ID (192.168.192). For the interesting octet, take the subnet ID value (112), add magic (8), and subtract 1, for.119. That makes the subnet broadcast address 192.168.192.119.

Question 8

If the host on a network has the address 172.16.45.25/30, what is the subnet ID to which this host belongs?&#10;A) 172.16.45.16&#10;B) 172.16.45.20&#10;C) 172.16.45.24&#10;D) 172.16.45.28

Accepted Answer

C) The correct answer is 172.16.45.24 because, first, the resident subnet (the subnet ID of the subnet in which the address resides) must be numerically smaller than the IP address, which rules out one of the answers. The mask converts to 255.255.255.252. As such, you can copy the first three octets of the IP address because of their value, 255. 55. For the fourth octet, the subnet ID value must be a multiple of 4 (magic number) because 256 - 252 (mask) = 4. Those multiples include 16, 20, and 24, and the correct choice is the multiple closest to the IP address value in that octet (25) without going over. So, the correct subnet ID is 172.16.45.24.

Question 9

If the host on a network has the address 172.16.66.50/21, what is the subnet ID to which this host belongs?&#10;A) 172.16.48.0&#10;B) 172.16.56.0&#10;C) 172.16.64.0&#10;D) 172.16.72.0

Accepted Answer

C) The correct answer is 172.16.64.0 because, first, the resident subnet (the subnet ID of the subnet in which the address resides) must be numerically smaller than the IP address, which rules out one of the answers. The mask converts to 255.255.248.0. As such, you can copy the first two octets of the IP address because of their value, 255. 55. For the third and fourth octet, the subnet ID value must be a multiple of 8 (magic number) because 256 - 248 (mask) = 8. Those multiples include 48, 56, and 64, and the correct choice is the multiple closest to the IP address value in that octet (66.50) without going over. So, the correct subnet ID is 172.16.64.0.

Question 10

As the network engineer, you are presented with the following 172.16.0.0/18 IP addressing information. Identify all the possible subnet IDs from the list below, assuming that the /18 subnet is used throughout the network.

A) 172.16.127.255
B) 172.16.192.0
C) 172.16.64.0
D) 172.16.191.255

Accepted Answer

B) The /18, or 255.255.192.0, mask provides 16 network bits, 2 subnet bits, and 14 host bits; this allows for a total of four different subnet possibilities, including 172.16.0.0, 172.16.64.0, 172.16.128.0, and 172.16.192.0.
C) The /18, or 255.255.192.0, mask provides 16 network bits, 2 subnet bits, and 14 host bits; this allows for a total of four different subnet possibilities, including 172.16.0.0, 172.16.64.0, 172.16.128.0, and 172.16.192.0.

Question 11

As the network engineer, you are given the following subnet IDs: 172.32.64.0, 172.32.168.0, and 172.32.192.0. Which of the following masks could be applied to this network?&#10;A) 255.255.128.0&#10;B) 255.255.192.0&#10;C) 255.255.224.0&#10;D) 225.255.248.0

Accepted Answer

The answer of As the network engineer, you are given...

Question 12

As the network engineer, you are provided with the following IP address and subnet mask 172.16.10.22 255.255.255.240. What is the valid host range for this IP address?&#10;A) 172.16.10.20 through 172.16.10.22&#10;B) 172.16.10.1 through 172.16.10.255&#10;C) 172.16.10.16 through 172.16.10.23&#10;D) 172.16.10.17 through 172.16.10.31&#10;E) 172.16.10.17 through 172.16.10.30

Accepted Answer

The answer of As the network engineer, you are provided...

Question 13

You have a 255.255.255.240 mask. Which of the following are valid host addresses?&#10;A) 192.168.10.210&#10;B) 192.168.10.32&#10;C) 192.168.10.94&#10;D) 192.168.10.112&#10;E) 192.168.10.127

Accepted Answer

The answer of You have a 255.255.255.240 mask. Which of...

Question 14

As the network engineer, you are shown the following IP address and subnet mask: 10.100.48.27/19. What is the valid host range for this IP address?&#10;A) 10.100.0.1 through 10.100.31.255&#10;B) 10.100.32.1 through 10.100.63.254&#10;C) 10.100.32.0 through 10.100.63.255&#10;D) 10.100.32.1 through 10.100.95.255

Accepted Answer

The answer of As the network engineer, you are shown...

Question 15

As the network engineer, you need to configure a server that is on the same subnet as a host that's assigned the IP address 192.168.19.24/28.28. The router has the first available host address. Which of the following IP addresses and masks could you assign to the server in this network?

A) 192.168.19.0 / 255.255.255.0
B) 192.168.19.27 / 255.255.255.240
C) 192.168.19.26 / 255.255.255.248
D) 192.168.19.31 / 255.255.255.248
E) 192.168.19.34 / 255.255.255.240

Accepted Answer

The answer of As the network engineer, you need to...

Question 16

Which of the following are valid subnet IDs for network 172.16.0.0, assuming mask 255.255.224.0 is used throughout network 172.16.0.0?&#10;A) 172.16.1.16&#10;B) 172.16.0.0&#10;C) 172.16.240.0&#10;D) 172.16.160.0&#10;E) 172.16.248.0

Accepted Answer

The answer of Which of the following are valid subnet...

Question 17

Which of the following are valid subnet IDs for network 172.168.0.0, assuming mask 255.255.252.0 is used throughout network 172.168.0.0?&#10;A) 172.168.2.0&#10;B) 172.168.4.0&#10;C) 172.168.42.0&#10;D) 172.168.108.0&#10;E) 172.168.110.0

Accepted Answer

The answer of Which of the following are valid subnet...

Question 18

As the network engineer, you are presented with the following 172.16.0.0/18 IP addressing information. Identify all the possible subnet IDs from the list below, assuming that the /18 subnet is used throughout the network.

A) 172.16.127.255
B) 172.16.192.0
C) 172.16.64.0
D) 172.16.191.255

Accepted Answer

The answer of As the network engineer, you are presented...

Question 19

Which of the following would be a usable IP address to assign to a host in the network 192.168.10.32/28?&#10;A) 192.168.10.39&#10;B) 192.168.10.47&#10;C) 192.168.10.14&#10;D) 192.168.10.54

Accepted Answer

The answer of Which of the following would be a...

Question 20

When an engineer configures a router with its IP address and mask, the router will automatically calculate the ________ and insert it into the routing table.&#10;A) Subnet broadcast address&#10;B) Subnet ID&#10;C) Network class&#10;D) Network inverse mask

Accepted Answer

The answer of When an engineer configures a router with...

Question 21

Which of the options shown does NOT mean the same thing?&#10;A) Subnet ID&#10;B) Subnet number&#10;C) Subnet broadcast&#10;D) Subnet address

Accepted Answer

The answer of Which of the options shown does NOT...

Question 22

What are the main roles for the subnet broadcast address?&#10;A) As a means of finding the high range of addresses in a subnet&#10;B) As a means of finding the low range of addresses in a subnet&#10;C) An address to send packets to specific hosts in a subnet&#10;D) An address to send packets to all hosts in a subnet

Accepted Answer

The answer of What are the main roles for the...

Question 23

What is the first step in figuring out the usable range of addresses in a subnet?&#10;A) To calculate the number of subnets that is allowed by the configured mask&#10;B) To calculate the subnet address and the broadcast address&#10;C) To calculate the subnet multicast address&#10;D) To calculate the number of subnets that is allowed by the configured address

Accepted Answer

The answer of What is the first step in figuring...

Question 24

The address that, when converted to binary, has all 0s in the host bits, is referred to as the ________.&#10;A) Broadcast address&#10;B) First address in a subnet&#10;C) Subnet address&#10;D) Last address in a subnet

Accepted Answer

The answer of The address that, when converted to binary,...

Question 25

For the IP address 10.64.17.4/19, how many configurable network, subnet, and host bits exist?&#10;A) Network: 15, subnet: 3, host: 13&#10;B) Network: 15, subnet: 12, host: 4&#10;C) Network: 7, subnet: 13, host: 11&#10;D) Network: 7, subnet: 11, host: 13

Accepted Answer

The answer of For the IP address 10.64.17.4/19, how many...

Question 26

For the IP address 172.184.58.184/27, how many configurable network, subnet, and host bits exist?&#10;A) Network: 15, subnet: 3, host: 13&#10;B) Network: 15, subnet: 12, host: 4&#10;C) Network: 5, subnet: 14, host: 11&#10;D) Network: 14, subnet: 11, host: 5

Accepted Answer

The answer of For the IP address 172.184.58.184/27, how many...

Question 27

The address that, when converted to binary, has all 1s in the host bits, is referred to as the ________.&#10;A) Broadcast address&#10;B) First address in a subnet&#10;C) Subnet address&#10;D) Unicast address for the subnet

Accepted Answer

The answer of The address that, when converted to binary,...

Question 28

For the address 172.30.173.68/23, what is the binary conversion of the broadcast address?&#10;A) 10101100 00011110 10101100 11111111&#10;B) 10101100 00011110 10101101 11111111&#10;C) 10101100 00011110 10101110 11111111&#10;D) 10101100 00011110 10101111 11111111

Accepted Answer

The answer of For the address 172.30.173.68/23, what is the...

Question 29

For the address 192.86.26.97/29, what is the binary conversion of the broadcast address?&#10;A) 11000000 01010110 00011010 01100000&#10;B) 11000000 01010110 00011010 01101111&#10;C) 11000000 01010110 00011010 01100111&#10;D) 11000000 01010110 00011010 01101000

Accepted Answer

The answer of For the address 192.86.26.97/29, what is the...

Deck 14: Analyzing Existing Subnets