Internet MCQs with Answers and Explanations

Question #41

Which of the following protocols is fundamentally used to resolve physical MAC addresses from known network layer IP addresses?

A. ICMP

B. DHCP

C. ARP

D. DNS

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Correct Answer: Option C

Explanation:
ARP (Address Resolution Protocol) resolves a network layer internet protocol (IP) address into its corresponding data link layer hardware MAC address.

This question belongs to: Computer Internet and Web Technologies

Question #42

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What does the 's' stand for in the 'https://' protocol identifier seen in browser address bars?

A. System

B. Socket

C. Server

D. Secure

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Correct Answer: Option D

Explanation:
The 's' in HTTPS stands for 'Secure', indicating that traditional HTTP is being tunneled through an encrypted TLS/SSL connection.

This question belongs to: Computer Internet and Web Technologies

Question #43

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Which of the following web browser features allows users to open and switch between multiple web pages within a single application window?

A. Tabbed Browsing

B. Extensions Engine

C. Bookmarking

D. History Pane

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Correct Answer: Option A

Explanation:
Tabbed browsing enables multiple web pages to be loaded simultaneously within distinct tabs inside the exact same window frame.

This question belongs to: Computer Internet and Web Technologies

Question #44

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Which HTTP header field or mechanism is used by a web server to set a tracking cookie on the user's browser client?

A. Set-Cookie

B. Cache-Control

C. Cookie-Transfer

D. Get-Cookie

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Correct Answer: Option A

Explanation:
The 'Set-Cookie' HTTP response header is sent by the server to direct the client web browser to store a specific cookie string locally.

This question belongs to: Computer Internet and Web Technologies

Question #45

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What does the acronym WWW stand for in the context of the Internet?

A. World Wide Work

B. World Wide Wireless

C. World Wide Web

D. Web World Wide

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Correct Answer: Option C

Explanation:
WWW stands for World Wide Web, which is an information system where documents and other web resources are identified by URLs and can be accessed via the Internet.

This question belongs to: Computer Internet and Web Technologies

Question #46

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Which protocol is primarily used for transmitting web pages over the Internet?

A. HTTP

B. SMTP

C. Telnet

D. FTP

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Correct Answer: Option A

Explanation:
HTTP (HyperText Transfer Protocol) is the foundation of data communication for the World Wide Web, used to fetch and transmit web pages.

This question belongs to: Computer Internet and Web Technologies

Question #47

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Which component of a URL specifies the protocol to be used?

A. Path

B. Scheme

C. Domain name

D. Query string

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Correct Answer: Option B

Explanation:
The scheme (or protocol) is the first part of a URL, e.g., http:// or https://, indicating the protocol to be used for communication.

This question belongs to: Computer Internet and Web Technologies

Question #48

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What is the default port number for HTTP?

A. 443

B. 21

C. 80

D. 25

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Correct Answer: Option C

Explanation:
Port 80 is the default port for HTTP communication. Port 443 is for HTTPS, port 21 for FTP, and port 25 for SMTP.

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Question #49

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Which protocol adds a layer of security to HTTP by using encryption?

A. HTTPS

B. SNMP

C. Telnet

D. FTP

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Correct Answer: Option A

Explanation:
HTTPS (HTTP Secure) is an extension of HTTP that uses SSL/TLS protocols to encrypt communication, providing secure data transmission.

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Question #50

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What is the function of a web browser?

A. To store web pages

B. To request and display web pages

C. To manage email

D. To host websites

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Correct Answer: Option B

Explanation:
A web browser is a client-side application that sends HTTP requests to web servers and renders the received web pages for the user.

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Question #51

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Which of the following is not a web browser?

A. Chrome

B. Firefox

C. Opera

D. Google

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Correct Answer: Option D

Explanation:
Google is a search engine and company, while Firefox, Chrome, and Opera are web browsers. Google Chrome is a browser, but 'Google' alone is not a browser.

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Question #52

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Which search engine is developed by Microsoft?

A. Yahoo

B. Google

C. Bing

D. DuckDuckGo

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Correct Answer: Option C

Explanation:
Bing is a search engine developed and operated by Microsoft, launched in 2009.

This question belongs to: Computer Internet and Web Technologies

Question #53

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What does the acronym URL stand for?

A. Universal Resource Link

B. Uniform Resource Locator

C. Unified Resource Locator

D. Uniform Retrieval Locator

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Correct Answer: Option B

Explanation:
URL stands for Uniform Resource Locator, which is a reference to a web resource that specifies its location on a computer network and a mechanism for retrieving it.

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Question #54

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In a URL, what is the part after the domain name and before the query string called?

A. Path

B. Port

C. Host

D. Fragment

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Correct Answer: Option A

Explanation:
The path in a URL specifies the location of a resource on the server, e.g., /folder/page.html. The query string follows the path and is preceded by '?'.

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Question #55

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Which HTTP status code indicates that a requested page has been permanently moved?

A. 302

B. 400

C. 301

D. 404

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Correct Answer: Option C

Explanation:
HTTP 301 means Moved Permanently, indicating the resource has been assigned a new permanent URI. 302 is temporary redirect, 400 is Bad Request, and 404 is Not Found.

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Question #56

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Which HTTP status code represents 'Not Found'?

A. 200

B. 301

C. 404

D. 500

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Correct Answer: Option C

Explanation:
404 Not Found indicates that the server cannot find the requested resource. 200 is OK, 301 Moved Permanently, and 500 Internal Server Error.

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Question #57

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Which protocol is used to send email from a client to a mail server?

A. HTTP

B. SMTP

C. IMAP

D. POP3

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Correct Answer: Option B

Explanation:
SMTP (Simple Mail Transfer Protocol) is used for sending emails from a client to a mail server and between mail servers. POP3 and IMAP are used for retrieving emails.

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Question #58

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Which protocol is used to receive email from a mail server, downloading it to a local device?

A. FTP

B. HTTP

C. POP3

D. SMTP

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Correct Answer: Option C

Explanation:
POP3 (Post Office Protocol version 3) is used by email clients to retrieve emails from a server, typically downloading them to the local device and often deleting them from the server.

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Question #59

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What is the primary difference between POP3 and IMAP?

A. POP3 downloads messages, IMAP synchronizes them

B. IMAP is older than POP3

C. POP3 uses encryption, IMAP does not

D. POP3 is faster, IMAP is slower

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Correct Answer: Option A

Explanation:
POP3 downloads emails to the local device and often removes them from the server, while IMAP keeps emails on the server and synchronizes across devices.

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Question #60

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What is the default port for HTTPS?

A. 443

B. 8080

C. 80

D. 21

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Correct Answer: Option A

Explanation:
HTTPS uses port 443 by default. Port 80 is for HTTP, 8080 is often used as alternative HTTP, and 21 is for FTP.

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