IT602 Midterm Solved Subjective Fall 2024-25 by MS Team

1. Two types of fiber optic cable: · o Single-Mode Fiber (SMF) · o Multi-Mode Fiber (MMF) · 2. Goals of Security (CIA Triad):

o Confidentiality – Prevent unauthorized access to data. o Integrity – Ensure data is accurate and unaltered. o Availability – Ensure data is accessible when needed.

3. Three processes of performance management:

1. Types of fallback solutions:

o Hot Site – Fully operational backup site with real-time data replication. o Cold Site – A backup site with infrastructure but no pre-installed data. o Warm Site – A middle-ground backup site with some pre-installed data but requiring updates before full use.

2. Five benefits of IPv6 over IPv4:

3. Risk list five parameters:

o Asset Name – The component that needs protection. o Vulnerability – Weakness that can be exploited. o Exploit – A method to attack the vulnerability. o Probability – Likelihood of an exploit occurring. o Impact – The severity of damage if an attack happens.

Short Questions & Key Concepts

1. Difference between IPv6 and IPv4:

o IPv4: 32-bit addressing, limited addresses, uses NAT, no built-in security. o IPv6: 128-bit addressing, larger address space, supports autoconfiguration, has built-in IPSec security.

2. Cipher: o A cipher is an algorithm used for encryption and decryption of data.

o Types of Ciphers:

 Block Cipher: Encrypts data in fixed-size blocks (e.g., AES, DES).  Stream Cipher: Encrypts data bit by bit (e.g., RC4).