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Subnetting Quiz 1

SUBNETTING QUIZ 1

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Question 1
If you would like to give IP address to 30 hosts from your IP prefix which subnet mask do you use most effectively?
A
255.255.255.128
B
255.255.255.224
C
255.255.255.240
D
255.255.255.254
E
255.255.255.248
Question 2
If you need to have 5 subnets, which subnet mask do you use?
A
255.255.255.252
B
255.255.255.240
C
255.255.255.224
D
255.255.255.254
E
255.255.255.248
Question 3
What is the last usable host address of prefix 182.144.10.0/29?
A
182.144.10.6
B
182.144.10.0
C
182.144.10.254
D
182.144.10.1
E
182.144.10.255
Question 4
What is the first usable host address of prefix 172.18.16.0/21?
A
172.18.16.16
B
172.18.16.15
C
172.18.16.1
D
172.18.16.54
E
172.18.16.0
Question 5
Which subnet does host 12.120.1.185/25 belong to?
A
12.120.1.0/25
B
12.120.1.64/25
C
12.120.1.192/25
D
12.120.1.1/25
E
12.120.1.128/25
Question 6
What is the subnetwork number of a host with an IP address of 100.155.1.0/21?
A
100.155.0.0/21
B
100.155.255.0/21
C
100.155.1.0/21
D
100.155.255.1/21
E
100.155.0.255/21
Question 7
Which Mask is most effective for a Point-to-Point network?
A
/27
B
/29
C
/30
D
/28
E
/24
Question 8
Address 172.16.1.1 is belong to Class .....
A
B
B
C
C
D
D
A
E
E
Question 9
Which one is a Class A address?
A
200.55.12.34
B
192.1.52.5
C
172.8.10.1
D
10.1.152.8
E
172.8.202.140
Question 10
What is the binary equivalent of IPv4 address 201.18.171.15?
A
11001001.00010010.10101011.00001111
B
11001001.00010010.10111011.00011111
C
11001001.00010010.10111011.00010011
D
11001011.00010011.10111011.00011111
E
11001001.00110010.10011011.00011110
Question 11
What is the binary equivalent of 188?
A
10101100
B
10111100
C
10111101
D
10001111
E
10110000
Question 12
We have a network address 192.168.1.0 and we would like to divide this network into 7 subnets and there must be at least 18 host addresses in each subnet. Which subnet mush should we use?
A
255.255.255.192 (/26)
B
255.255.255.224 (/27)
C
255.255.255.240 (/28)
D
255.255.255.128 (/25)
E
255.255.255.0 (/24)
Question 13
The decimal dotted format of /26 is :
A
255.255.255.0
B
255.255.255.224
C
255.255.255.240
D
255.255.255.192
E
255.255.255.248
Question 14
What is the broadcast address of prefix 172.18.16.0/21?  
A
172.18.0.255
B
172.18.23.255
C
172.18.255.255
D
172.18.25.255
E
172.18.30.255
Question 14 Explanation: 
Network: 172.18.16.0/21 10101100.00010010.00010 000.00000000 Broadcast: 172.18.23.255 10101100.00010010.00010 111.11111111
Question 15
What is the binary equivalent of Subnet Mask 255.255.128.0?
A
11111111.11111111.00000001.00000000
B
11111111.11111111.11111111.00000000
C
11111111.11111111.11111111.00000001
D
11111111.11111111.10000000.00000000
E
11111111.11111111.00000000.00000000
Question 16
How many IP addresses can be assigned to hosts, for Subnet Mask 255.255.255.0?
A
224
B
1
C
254
D
2
E
255
Question 17
IP address 10.145.100.6/27 is a part of which host range?
A
10.145.100.0 - 10.145.100.63
B
10.145.100.1 - 10.145.100.255
C
10.145.100.0 - 10.145.100.255
D
10.145.100.1 - 10.145.100.30
E
10.145.100.0 - 10.145.100.32
Question 18
We have an IP prefix 102.74.200.1/23.Which of the following can be valid host IDs for this prefix?
A
102.74.202.255
B
102.74.203.0
C
102.74.201.255
D
102.74.200.255
E
102.74.200.0
Question 18 Explanation: 
HostMin: 102.74.200.1 01100110.01001010.1100100 0.00000001 HostMax: 102.74.201.254 01100110.01001010.1100100 1.11111110
Question 19
How many subnets and how many hosts in each subnet are there for the network address 80.160.0.0/20?
A
512 / 4094
B
512 / 4096
C
4096 / 4094
D
4096 / 512
E
4094 / 4096
Question 20
What is the decimal equivalent of 01001010?
A
70
B
142
C
74
D
72
E
140
Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results
There are 20 questions to complete.

 

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Gokhan Kosem is a Network Engineer, Instructor and the Founder of IPCisco.com with 15+ years of experience in Cisco, Nokia, Huawei, Juniper, Linux, Service Provider Networks, Routing and Switching technologies.

He has worked on the backbone networks of major service providers and network vendors including Nortel, Alcatel-Lucent (Nokia) and has extensive hands-on experience with Cisco, Huawei, Juniper and Nokia networking technologies.

He has trained thousands of networking students worldwide through IPCisco.com, Udemy, books, labs, quizzes, and educational content across multiple social media platforms.

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