Subnetting Quiz

What is the last usable host IP address for the 172.45.120.0/23 network?

A) 172.45.120.254
B) 172.45.122.254
C) 172.45.121.254
D) 172.45.123.254

How many usable IP addresses can be assigned to hosts on a /26 subnet?

A) 30
B) 126
C) 62
D) 254

What is the dot-decimal representation of a /13 subnet mask?

A) 255.248.0.0
B) 255.254.0.0
C) 255.252.0.0
D) 255.240.0.0

What is the maximum number of subnets and hosts per subnet for the 192.168.50.247 255.255.255.224 network?

A) 2 subnets, 126 hosts per subnet
B) 8 subnets, 30 hosts per subnet
C) 16 subnets, 14 hosts per subnet
D) 4 subnets, 62 hosts per subnet

What is the first usable host IP address on the 172.26.56.110/27 network?

A) 172.26.56.111
B) 172.26.56.126
C) 172.26.56.97
D) 172.26.56.127

Which of the following answers lists the binary notation of the decimal number 252?

A) 11110010
B) 11111010
C) 11111100
D) 11111000

What is the maximum number of hosts per subnet for the 10.47.255.1/20 network?
A) 4094 hosts
B) 2046 hosts
C) 512 hosts
D) 1022 hosts

What is the maximum valid range for IP addresses that can be assigned to hosts on the 192.168.100.248 255.255.255.248 network?

A) 192.168.100.249 - 192.168.100.254
B) 192.168.100.249 - 192.168.100.255
C) 192.168.100.248 - 192.168.100.254
D) 192.168.100.248 - 192.168.100.255

Which of the following answers lists the broadcast address for the 192.168.50.155/20 network?
A) 192.168.79.255
B) 192.168.63.255
C) 192.168.31.255
D) 192.168.47.255

Which of the following answers refer to the characteristic features of the 10.0.0.0 - 10.255.255.255 IPv4 address space? (Select 2 answers)

a. Class A range
b. Public IP address range
c. Class B range
d. Non-routable (private) IP address range
e. Class C range

What is the last usable host IP address on the 192.168.32.9/30 network?

A) 192.168.32.12
B) 192.168.32.9
C) 192.168.32.11
D) 192.168.32.10

What is the binary representation of the 255.255.128.0 subnet mask?

A) 11111111.11111111.10000000.00000000
B) 11111111.11111111.11000000.00000000
C) 11111111.11111111.11110000.00000000
D) 11111111.11111111.11100000.00000000

In IPv4 addressing, the leading octet of an IP address with a value of 1 through 126 denotes that the IP address within that range belongs to the:

A) Class B address space
B) Class C address space
C) Class D address space
D) Class A address space

What is the network address for the 154.24.67.147/22 host?

A) 154.24.60.0
B) 154.24.64.0
C) 154.24.62.0
D) 154.24.48.0

Which of the following answers lists the CIDR notation for 255.255.224.0 subnet mask?

A) /19
B) /21
C) /20
D) /22

Which of the following answers list the characteristic features of the 172.16.0.0 - 172.31.255.255 IPv4 address space? (Select 2 answers)

a. Class A range
b. Public IP address range
c. Class B range
d. Non-routable (private) IP address range
e. Class C range

What is the first valid host address for a node residing in the 10.119.136.143/20 network?

A) 10.119.128.1
B) 10.119.136.1
C) 10.119.132.1
D) 10.119.96.1

Which of the following is an example of a valid subnet mask?

A) 255.255.225.0
B) 255.255.191.0
C) 255.255.127.0
D) 255.255.64.0
E) None of the above is a valid subnet mask

Which of the following answers lists the CIDR notation of the 255.255.255.224 subnet mask?

A) /26
B) /25
C) /27
D) /28

What is the binary representation of the 255.254.0.0 subnet mask?

A) 11111111.11111110.00000000.00000000
B) 11111111.11111100.00000000.00000000
C) 11111111.11111000.00000000.00000000
D) 11111111.11111101.00000000.00000000

Which of the following answers list the characteristic features of the 192.168.0.0 - 192.168.255.255 IP address space? (Select 2 answers)

a. Class A range
b. Public IP address range
c. Class B range
d. Non-routable (private) IP address range
e. Class C range

What is the leading octet value range for an IPv4 address belonging to a class B network?

A) 192 - 223
B) 128 - 191
C) 224 - 239
D) 1 - 126

In IPv4 addressing, the leading octet of an IP address with a value of 192 through 223 denotes that the IP address within that range belongs to the:

A) Class D address space
B) Class C address space
C) Class B address space
D) Class A address space

Which of the following answers lists the CIDR notation of the 255.192.0.0 subnet mask?

A) /13
B) /12
C) /10
D) /11

Which of the following answers refer to the leading octet value range and class of the IPv4 multicast address block? (Select 2 answers)

a. 128 - 191
b. Class B
c. 192 - 223
d. Class C
e. 224 - 239
f. Class D

Which of the following answers lists the broadcast address for the 46.28.247.109/10 network?

A) 46.63.255.255
B) 46.31.255.255
C) 46.127.255.255
D) 46.255.255.255

What is the network address for the 192.168.223.15 255.255.255.252 host?

A) 192.168.223.12
B) 192.168.223.11
C) 192.168.223.13
D) 192.168.223.10

Compared to the number of all IPv4 addresses available per subnet, the total number of usable IPv4 addresses that can be assigned to hosts from that pool is reduced by two. Those two addresses that cannot be assigned to hosts are used as: (Select 2 answers)

a. Network address
b. Unicast address
c. Broadcast address
d. Multicast address

What is the maximum valid range for IP addresses that can be assigned to hosts on the 134.170.185.46 255.255.128.0 network?

A) 134.170.128.1 - 134.170.191.254
B) 134.170.128.1 - 134.170.255.254
C) 134.170.176.1 - 134.170.191.254
D) 134.170.160.1 - 134.170.191.254