Computer Knowledge

Computer Networks

2,614 Questions

Computer networks involve the architecture, protocols, and security measures used for digital communication. This collection covers OSI model layers, IP addressing, data transmission, and cryptographic standards. These concepts are vital for the computer knowledge sections of banking and government exams.

OSI model layersNetwork protocolsIP subnet maskingData encryption standardsServer configurationsNetwork commands

Computer Networks Questions

Multiple choice

What is a primary purpose of encapsulating packets into frames?

  1. Provide routes across the internetwork

  2. Format the data for presentation to the user

  3. Facilitate the entry and exit of data on media

  4. Identify the services to which transported data is associated
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Encapsulation at Layer 2 wraps network layer packets into frames with source and destination MAC addresses, error checking, and frame delimiters. This formatting is necessary for data to be properly transmitted across the physical medium. The data link layer controls how data enters and exits the network media.

Multiple choice

A client-server application has become very popular and hundreds of users are accessing the Oracle Server daily. Which networking solution should be implemented to ensure that all users can access the Oracle Server?

  1. Dedicated Server

  2. Directory Naming

  3. Oracle Connection Manager

  4. Heterogeneous Services
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Oracle Connection Manager is specifically designed to handle large numbers of concurrent client connections through connection pooling and multiplexing. It acts as an intermediary that can efficiently manage hundreds or thousands of client sessions to a single server instance. Dedicated Server (option A) would create one server process per user - resource-intensive for hundreds of users. Directory Naming (option B) is for name resolution, not connection scaling. Heterogeneous Services (option D) is for non-Oracle data source integration.

Multiple choice

IP addresses are______.

  1. binary numbers

  2. bytes

  3. files

  4. fields

  5. records

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

IP addresses are binary numbers, but they are usually stored in text files and displayed in human-readable notations, such as 172.16.254.1

Multiple choice

172.16.254.2 is which type of IP address?

  1. IPv4

  2. Ipv6

  3. Ipv3

  4. IPv2

  5. None of the above

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

IPv4 addresses are canonically represented in dot-decimal notation, which consists of four decimal numbers, each ranging from 0 to 255, separated by dots, e.g., 172.16.254.1.