Question 1

Which of the following is the correct full form of 'HTTP' used in web addresses?

Accepted Answer

HTTP stands for HyperText Transfer Protocol. It is the foundational protocol used for transferring data across the World Wide Web. HTTPS is the secure version with an additional 'S' for Security.

Question 2

What does the acronym 'HTTP' stand for in web technology?

Accepted Answer

HTTP is the fundamental protocol used for transferring data across the World Wide Web. It defines how messages are formatted and transmitted between web browsers (clients) and web servers.

Question 3

Which of the following is the correct full form of 'RAM' in computer memory?

Accepted Answer

RAM is a type of computer memory that allows quick read and write access to data. It is volatile memory, meaning data is lost when power is turned off.

Question 4

What does 'URL' stand for in internet terminology?

Accepted Answer

A URL is the web address used to locate resources on the internet. It is the standard way to identify and access web pages, files, and other resources online.

Question 5

Which of the following is the smallest unit of data in computer storage?

Accepted Answer

The bit is the fundamental unit of information in computing and digital communications. All digital data is ultimately represented as sequences of bits.

Question 6

What does 'GB' stand for in computer storage terminology?

Accepted Answer

GB is a standard unit of digital storage capacity. It represents one billion bytes (in decimal) or 1,073,741,824 bytes (in binary, also called a gibibyte).

Question 7

Which of the following correctly describes what 'Cache Memory' does in a computer system?

Accepted Answer

Cache memory is a small, high-speed memory located between the CPU and main memory (RAM). It stores frequently accessed data and instructions to reduce the time the CPU spends waiting for data from slower main memory, thereby improving overall system performance.

Question 8

What is the primary function of RAM (Random Access Memory) in a computer system?

Accepted Answer

RAM is a type of volatile computer memory that temporarily stores data and programs currently being used by the CPU. It provides fast read/write access to data, which is essential for the computer's immediate processing needs.

Question 9

Which of the following best describes the term 'Bandwidth' in the context of internet and networking?

Accepted Answer

Bandwidth refers to the maximum rate of data transfer across a network connection, typically measured in bits per second (bps), kilobits per second (kbps), megabits per second (mbps), or gigabits per second (gbps). It determines how much data can be transmitted in a given time period.

Question 10

What does 'URL' stand for in web terminology?

Accepted Answer

URL is the acronym for Uniform Resource Locator, which is the web address used to identify and locate resources on the internet. Every webpage, image, or file accessible on the web has a unique URL.

Question 11

Which of the following is the correct full form of 'BIOS' in computer terminology?

Accepted Answer

BIOS stands for Basic Input/Output System. It is firmware that initializes hardware during the boot process before the operating system loads. BIOS performs hardware tests (POST - Power-On Self Test) and provides runtime services for operating systems and programs.

Question 12

In networking, what is the maximum number of bits in an IPv4 address?

Accepted Answer

An IPv4 (Internet Protocol version 4) address consists of exactly 32 bits, divided into 4 octets of 8 bits each (e.g., 192.168.1.1). This 32-bit structure allows for approximately 4.3 billion unique addresses (2^32).

Question 13

Which of the following protocols operates at Layer 4 (Transport Layer) of the OSI model?

Accepted Answer

The Transport Layer (Layer 4) of the OSI model is responsible for end-to-end communication and data flow control. TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are the primary Layer 4 protocols. TCP provides reliable, connection-oriented communication, while UDP provides unreliable, connectionless communication.

Question 14

What is the primary function of a 'Firewall' in computer network security?

Accepted Answer

A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between trusted internal networks and untrusted external networks (like the Internet), filtering packets and blocking unauthorized access while allowing legitimate traffic.

Question 15

Which of the following is NOT a characteristic of cloud computing?

Accepted Answer

Cloud computing is characterized by on-demand resource availability, scalability, pay-as-you-go pricing, accessibility from anywhere, and reduced infrastructure maintenance. However, cloud computing does NOT guarantee complete data isolation from other users (multi-tenancy is common) and does NOT eliminate the need for internet connectivity. The incorrect option should describe something fundamentally incompatible with cloud computing principles.

Question 16

Which of the following protocols is responsible for translating domain names (like www.google.com) into their corresponding IP addresses on the Internet?

Accepted Answer

The Domain Name System (DNS) protocol operates at the application layer (Layer 7) of the OSI model and uses UDP port 53 to resolve human-readable domain names into numerical IP addresses. This is a fundamental Internet infrastructure service without which web browsing would require memorizing IP addresses.

SSC GD Constable IT & Computers

IT & Computers— Rules & Concept

Key Points to Remember

Exam-Specific Tips

IT & Computers — Practice Questions

60-Second Revision — IT & Computers