OSI & Networking Models
JKSSB Sub-Inspector (Telecommunication) · Computer Science & Networking Systems · 8 practice questions with answers and explanations: 2 Easy, 3 Medium, 3 Hard.
Sample questions
Sample Easy question 1
How many layers does the OSI model have?
- 5
- 6
- 7
- 8
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Answer: C. The OSI model has 7 layers, from Physical up to Application.
Sample Medium question 2
What is 'CIDR' notation used for?
- Representing an IP address along with its network prefix length, e.g. 192.168.1.0/24
- Naming a computer
- Encrypting a password
- Measuring internet speed
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Answer: A. CIDR notation compactly expresses an IP address's network portion using a prefix length.
Sample Hard question 3
What wireless standard family does 'Wi-Fi' belong to?
- IEEE 802.11
- IEEE 802.3
- IEEE 802.15
- IEEE 802.1
Show answer
Answer: A. Wi-Fi is based on the IEEE 802.11 family of wireless networking standards.