2021
Semester: Semester 5
Full Marks: 60
Pass Marks: 24
Time: 3 hours
Candidates are required to answer the question in their own words as far as possible.
Attempt any SIX question.
Explain TCP/IP Reference model.
"Slotted ALOHA improves the performance of system over pure ALOHA". Justify.
Differentiate between Reliable & Unreliable connection with their application.
What is DNS? How it works?
What is cryptography? Explain the principles of cryptography.
What is TCP? Describe TCP segment header.
Write short note on (Any Two):
a) Fragmentation
b) Channelization
c) VPN
Attempt any TWO questions
Classify and calculate the total number of Networks and Hosts per network in IPV4.
Explain the IPV4 Header format in detail.
What is switching? Describe the types of switching with their advantages and disadvantages.
*** END OF QUESTION PAPER ***
1. TCP/IP Reference Model Definition: The TCP/IP (Transmission Control Protocol / Internet Protocol) model is a conceptual framework that standardizes network communication using the Internet protoc
1. Pure ALOHA Definition: Pure ALOHA is a random-access protocol where a station transmits data whenever it has data to send. - Collisions may occur if two or more stations transmit simultaneously
1. Reliable Connection Definition: A reliable connection ensures data is delivered accurately and in order between sender and receiver. - Uses acknowledgment, retransmission, and flow control. -
1. DNS (Domain Name System) Definition: DNS is a hierarchical and distributed system that translates human-readable domain names (e.g., www.example.com) into IP addresses (e.g., 192.168.1.1) require
1. Cryptography Definition: Cryptography is the science of securing information by transforming it into an unreadable format to prevent unauthorized access. - Ensures confidentiality, integrity, a
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