Government Polytechnic Palanpur

Information & Communication Technology

Progressive Assessment I (September - 2025)

Semester: 5
Subject Name & Code: Cyber Security (4353204)
Date: 04/09/2025
Time: 11:30 AM TO 12:30 PM
Total Marks: 20

Seat No.: ________________
Enrolment No.: ________________

Instructions

  • Answer all questions
  • Figures to the right indicate marks

Question 1: Answer the following questions [10 Marks]

(a) Explain various security attacks, mechanisms, and services associated with each layer of the OSI model. [7 Marks] (CO1 - A)

(b) Describe CIA triad with example. [3 Marks] (CO1 - U)

Question 2: Answer the following questions [10 Marks]

(a) Explain working of packet filter and application proxy. [7 Marks] (CO2 - A)

(b) What is authentication? Explain different methods of authentication. [3 Marks] (CO2 - U)

Alternative Set Questions

Alternative Q1: Answer the following questions [10 Marks]

(a) Explain MD5 hashing and Secure Hash Function (SHA) algorithms. [7 Marks] (CO1 - A)

(b) Explain Public key and Private Key cryptography. [3 Marks] (CO1 - U)

Alternative Q2: Answer the following questions [10 Marks]

(a) Explain different types of malicious software and their effect. [7 Marks] (CO2 - A)

(b) What is firewall? List out types of firewalls. [3 Marks] (CO2 - U)

Legend:

  • CO1, CO2: Course Outcomes
  • A: Apply level
  • U: Understand level