ISRO CS 2017 Exam - Chapter 65

ISRO CS 2017 exam is conducted by the Indian Space Research Organization (ISRO) for recruitment of computer science engineers for various job profiles. Chapter 65 of the ISRO CS 2017 exam covers various topics related to computer networks.

Topics Covered

The following topics are covered in Chapter 65:

1. Network topology, types of topology
2. Transmission modes, types of transmission modes
3. OSI reference model
4. TCP/IP protocol suite
5. Network devices
6. Network security

Tips for Preparation

To prepare for Chapter 65 of the ISRO CS 2017 exam, here are a few tips:

1. Study the network topology and transmission modes in detail. Learn the types of topology and types of transmission modes.
2. Understand the OSI reference model and its layers. Learn the functions of each layer and how they interact with each other.
3. Study the TCP/IP protocol suite and the protocols in its layers. Understand how the protocols work and their significance in networking.
4. Learn about the network devices such as routers, switches, and hubs. Understand how they work and how they are used in the networking environment.
5. Study the basics of network security. Understand the various security threats and learn about the measures to prevent them.

Code Snippet

# Python code to find IP address of a website

import socket

website = input("Enter website name: ")

ip_address = socket.gethostbyname(website)

print("IP address of", website, "is", ip_address)

This code snippet shows how to find the IP address of a website using Python programming. gethostbyname function of the socket module is used to get the IP address of the given website. This code can be useful in network programming where IP addresses need to be resolved dynamically.