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Subnetting Quiz 1

SUBNETTING QUIZ 1

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Question 1
If you need to have 5 subnets, which subnet mask do you use?
A
255.255.255.252
B
255.255.255.248
C
255.255.255.240
D
255.255.255.254
E
255.255.255.224
Question 2
The decimal dotted format of /26 is :
A
255.255.255.0
B
255.255.255.248
C
255.255.255.240
D
255.255.255.192
E
255.255.255.224
Question 3
Address 172.16.1.1 is belong to Class .....
A
C
B
A
C
D
D
E
E
B
Question 4
What is the binary equivalent of 188?
A
10111101
B
10110000
C
10001111
D
10111100
E
10101100
Question 5
What is the broadcast address of prefix 172.18.16.0/21?  
A
172.18.23.255
B
172.18.30.255
C
172.18.0.255
D
172.18.25.255
E
172.18.255.255
Question 5 Explanation: 
Network: 172.18.16.0/21 10101100.00010010.00010 000.00000000 Broadcast: 172.18.23.255 10101100.00010010.00010 111.11111111
Question 6
What is the subnetwork number of a host with an IP address of 100.155.1.0/21?
A
100.155.255.1/21
B
100.155.1.0/21
C
100.155.0.255/21
D
100.155.255.0/21
E
100.155.0.0/21
Question 7
What is the last usable host address of prefix 182.144.10.0/29?
A
182.144.10.0
B
182.144.10.255
C
182.144.10.6
D
182.144.10.254
E
182.144.10.1
Question 8
What is the binary equivalent of IPv4 address 201.18.171.15?
A
11001001.00110010.10011011.00011110
B
11001001.00010010.10111011.00011111
C
11001011.00010011.10111011.00011111
D
11001001.00010010.10111011.00010011
E
11001001.00010010.10101011.00001111
Question 9
Which Mask is most effective for a Point-to-Point network?
A
/27
B
/29
C
/30
D
/24
E
/28
Question 10
What is the first usable host address of prefix 172.18.16.0/21?
A
172.18.16.0
B
172.18.16.1
C
172.18.16.15
D
172.18.16.16
E
172.18.16.54
Question 11
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
102.74.200.255
C
102.74.203.0
D
102.74.201.255
E
102.74.200.0
Question 11 Explanation: 
HostMin: 102.74.200.1 01100110.01001010.1100100 0.00000001 HostMax: 102.74.201.254 01100110.01001010.1100100 1.11111110
Question 12
What is the decimal equivalent of 01001010?
A
140
B
70
C
142
D
74
E
72
Question 13
Which one is a Class A address?
A
172.8.10.1
B
200.55.12.34
C
192.1.52.5
D
172.8.202.140
E
10.1.152.8
Question 14
IP address 10.145.100.6/27 is a part of which host range?
A
10.145.100.0 - 10.145.100.255
B
10.145.100.1 - 10.145.100.255
C
10.145.100.1 - 10.145.100.30
D
10.145.100.0 - 10.145.100.32
E
10.145.100.0 - 10.145.100.63
Question 15
Which subnet does host 12.120.1.185/25 belong to?
A
12.120.1.64/25
B
12.120.1.1/25
C
12.120.1.192/25
D
12.120.1.128/25
E
12.120.1.0/25
Question 16
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
255.255.255.0 (/24)
B
255.255.255.192 (/26)
C
255.255.255.128 (/25)
D
255.255.255.224 (/27)
E
255.255.255.240 (/28)
Question 17
What is the binary equivalent of Subnet Mask 255.255.128.0?
A
11111111.11111111.10000000.00000000
B
11111111.11111111.11111111.00000001
C
11111111.11111111.11111111.00000000
D
11111111.11111111.00000000.00000000
E
11111111.11111111.00000001.00000000
Question 18
How many IP addresses can be assigned to hosts, for Subnet Mask 255.255.255.0?
A
254
B
2
C
255
D
1
E
224
Question 19
If you would like to give IP address to 30 hosts from your IP prefix which subnet mask do you use most effectively?
A
255.255.255.240
B
255.255.255.224
C
255.255.255.254
D
255.255.255.248
E
255.255.255.128
Question 20
How many subnets and how many hosts in each subnet are there for the network address 80.160.0.0/20?
A
4096 / 512
B
512 / 4094
C
512 / 4096
D
4096 / 4094
E
4094 / 4096
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.

 

gokhan-kosem-instructor-ipcisco

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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