Question 1

Which device is used to connect multiple devices on the same local network and forward data frames based on MAC addresses?

Accepted Answer

A switch operates at Layer 2 (Data Link) and uses MAC addresses to forward frames to the correct physical ports within a LAN.

Question 2

What does DNS stand for and what is its primary purpose?

Accepted Answer

DNS (Domain Name Service) translates human-readable domain names like www.google.com into their corresponding IP addresses so computers can locate each other on the internet.

Question 3

What is the maximum file size typically allowed as an email attachment in most email services?

Accepted Answer

Most email services like Gmail and Outlook have a default maximum attachment limit of 25 MB per email.

Question 4

Which of the following is NOT a standard email communication feature?

Accepted Answer

Real-time video streaming cannot be embedded directly in email bodies; emails support text, images, and attachments but not live video streaming.

Question 5

Which of the following is the PRIMARY purpose of a firewall in network security?

Accepted Answer

A firewall acts as a security barrier that filters network traffic and prevents unauthorized access to a system.

Question 6

Which of the following is a valid example of a domain name?

Accepted Answer

www.google.com is a valid domain name; 192.168.1.1 is an IP address, and the others are not proper domain formats.

Question 7

What is a strong password according to cybersecurity best practices?

Accepted Answer

Strong passwords combine multiple character types (uppercase, lowercase, digits, symbols) with sufficient length to resist brute-force attacks.

Question 8

Which protocol is used to retrieve emails from a mail server to a client computer?

Accepted Answer

POP3 (Post Office Protocol 3) and IMAP (Internet Message Access Protocol) are protocols used for receiving and retrieving emails.

Question 9

Which protocol is used for secure internet communication and starts with 'https'?

Accepted Answer

HTTPS (HyperText Transfer Protocol Secure) is the secure version of HTTP that encrypts data during transmission over the internet.

Question 10

What is the primary function of a gateway in a computer network?

Accepted Answer

A gateway acts as an entry/exit point that connects different networks and enables communication between them by translating protocols and data formats.

Question 11

What is the primary function of a web browser?

Accepted Answer

A web browser is software designed to retrieve, display, and navigate web pages from the internet.

Question 12

Which of the following is the correct format of an email address?

Accepted Answer

Email addresses follow the format username@domain.com, where @ separates the username from the domain name.

Question 13

Which of the following is the correct format for an email address?

Accepted Answer

A valid email address consists of a username, followed by the @ symbol, then the domain name with an extension.

Question 14

What does SMTP stand for in email communication?

Accepted Answer

SMTP (Simple Mail Transfer Protocol) is the protocol used to send emails from a client to a mail server.

Question 15

What does ISP stand for in the context of internet connectivity?

Accepted Answer

ISP stands for Internet Service Provider, which is a company that provides internet connectivity to users.

Question 16

What does URL stand for in internet terminology?

Accepted Answer

URL stands for Uniform Resource Locator, which is the address used to access websites and resources on the internet.

Question 17

What is the maximum number of hosts that can be connected in a Class C private IP address network 192.168.1.0/24?

Accepted Answer

In a /24 network, 256 total addresses exist, but the first (network) and last (broadcast) addresses are reserved, leaving 254 usable host addresses.

Question 18

Which of the following email features allows you to send a message to multiple recipients without disclosing their addresses to each other?

Accepted Answer

BCC (Blind Carbon Copy) hides recipient addresses from other recipients, maintaining privacy.

Question 19

Which of the following is the correct format of an IPv4 address?

Accepted Answer

IPv4 addresses consist of four octets separated by dots, each octet ranging from 0 to 255; 192.168.1.1 is the valid format.

Question 20

In the OSI model, at which layer does a router operate to forward data packets between networks?

Accepted Answer

Routers operate at Layer 3 (Network Layer) and use IP addresses to make routing decisions and forward packets across different networks.

Agniveer Army Clerk SKT Internet & Networking Questions

Internet & Networking Practice Questions — Graded Difficulty

Study by Subtopic — Internet & Networking

Study Next — Computer Science Topics