Internet and Web Technologies MCQs

Computer

Internet and Web Technologies MCQs

Practice Internet MCQs covering WWW, browsers, search engines, URL, HTTP, HTTPS, email and web technologies with answers and explanations.

461
Total Questions

Practice Questions

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Question #61
Which organization is responsible for managing domain name system (DNS) root servers?
A. IETF
B. W3C
C. ICANN
D. IEEE
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Correct Answer: Option C

Explanation:
ICANN (Internet Corporation for Assigned Names and Numbers) coordinates the DNS root servers and manages domain name allocation.
This question belongs to: Computer Internet and Web Technologies
Question #62
What is a cookie in the context of web browsing?
A. A protocol for secure communication
B. A program that scans for viruses
C. A type of web browser
D. A small text file stored on the user's computer
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Correct Answer: Option D

Explanation:
A cookie is a small piece of data sent from a website and stored on the user's browser, used to remember stateful information such as login sessions, preferences, etc.
This question belongs to: Computer Internet and Web Technologies
Question #63
Which of the following is a valid top-level domain (TLD)?
A. .www
B. .com
C. .http
D. .html
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Correct Answer: Option B

Explanation:
.com is a generic top-level domain (gTLD) used for commercial purposes. .html, .http, .www are not valid TLDs.
This question belongs to: Computer Internet and Web Technologies
Question #64
What is the function of a DNS server?
A. To store web pages
B. To encrypt data
C. To translate domain names to IP addresses
D. To manage email routing
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Correct Answer: Option C

Explanation:
DNS (Domain Name System) servers resolve human-readable domain names (e.g., www.example.com) to numerical IP addresses (e.g., 192.0.2.1) required for network routing.
This question belongs to: Computer Internet and Web Technologies
Question #65
Which of the following is an example of a web browser developed by Apple?
A. Chrome
B. Opera
C. Edge
D. Safari
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Correct Answer: Option D

Explanation:
Safari is a web browser developed by Apple Inc., released in 2003. Chrome is Google, Edge is Microsoft, Opera is Opera Software.
This question belongs to: Computer Internet and Web Technologies
Question #66
What does the term 'phishing' refer to in the context of web and email?
A. A protocol for file transfer
B. A method to speed up browsing
C. A fraudulent attempt to obtain sensitive information
D. A type of virus
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Correct Answer: Option C

Explanation:
Phishing is a cyber attack that uses deceptive emails or websites to trick users into providing personal data such as usernames, passwords, or credit card details.
This question belongs to: Computer Internet and Web Technologies
Question #67
Which of the following HTTP methods is used to retrieve data from a server without affecting the resource?
A. PUT
B. POST
C. GET
D. DELETE
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Correct Answer: Option C

Explanation:
The GET method requests data from a specified resource and should not have any side effects (idempotent). POST is for sending data, PUT for updating, DELETE for removing.
This question belongs to: Computer Internet and Web Technologies
Question #68
Which HTTP method is typically used to submit form data?
A. GET
B. POST
C. OPTIONS
D. HEAD
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Correct Answer: Option B

Explanation:
The POST method is used to send data to the server to create or update a resource, commonly used in form submissions.
This question belongs to: Computer Internet and Web Technologies
Question #69
What is the purpose of the 'Host' header in an HTTP request?
A. To specify the client's IP address
B. To authenticate the user
C. To set the content type
D. To indicate the domain name of the server
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Correct Answer: Option D

Explanation:
The Host header specifies the domain name of the server (and optionally the port) to which the request is being sent, enabling virtual hosting.
This question belongs to: Computer Internet and Web Technologies
Question #70
What is a web server?
A. A program that browses web pages
B. A search engine
C. An email client
D. A program that stores and serves web pages
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Correct Answer: Option D

Explanation:
A web server is software that handles HTTP requests and serves web pages to clients, e.g., Apache, Nginx.
This question belongs to: Computer Internet and Web Technologies
Question #71
Which of the following is not a web server software?
A. IIS
B. Apache
C. Nginx
D. Firefox
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Correct Answer: Option D

Explanation:
Firefox is a web browser, not a web server. Apache, Nginx, and IIS (Internet Information Services) are web server software.
This question belongs to: Computer Internet and Web Technologies
Question #72
What is the role of a search engine crawler (spider)?
A. To display search results
B. To rank web pages
C. To index web pages by following links
D. To encrypt web traffic
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Correct Answer: Option C

Explanation:
A crawler, also known as a spider or bot, systematically browses the web to discover and index web pages by following hyperlinks.
This question belongs to: Computer Internet and Web Technologies
Question #73
What is the name of the algorithm used by Google to rank search results?
A. SearchRank
B. BingRank
C. LinkRank
D. PageRank
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Correct Answer: Option D

Explanation:
PageRank is an algorithm used by Google to rank web pages based on the number and quality of links pointing to them, developed by Larry Page and Sergey Brin.
This question belongs to: Computer Internet and Web Technologies
Question #74
What does the 's' in HTTPS stand for?
A. Standard
B. Secure
C. Simple
D. System
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Correct Answer: Option B

Explanation:
HTTPS stands for HyperText Transfer Protocol Secure, indicating that communication is encrypted using SSL/TLS.
This question belongs to: Computer Internet and Web Technologies
Question #75
Which of the following is used to encrypt data transmitted over HTTPS?
A. SSH
B. SSL/TLS
C. IPSec
D. WPA
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Correct Answer: Option B

Explanation:
HTTPS uses SSL (Secure Sockets Layer) or its successor TLS (Transport Layer Security) to encrypt data between the client and server.
This question belongs to: Computer Internet and Web Technologies
Question #76
What is the purpose of a URL encoding?
A. To convert unsafe characters into a safe format
B. To compress the URL
C. To hide the URL from search engines
D. To make the URL shorter
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Correct Answer: Option A

Explanation:
URL encoding (percent-encoding) replaces unsafe ASCII characters with a '%' followed by two hexadecimal digits to ensure the URL is valid and transmitted correctly.
This question belongs to: Computer Internet and Web Technologies
Question #77
What is a web cache?
A. A protocol for secure communication
B. A search engine algorithm
C. A type of browser extension
D. A storage area for frequently accessed web resources
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Correct Answer: Option D

Explanation:
A web cache stores copies of web resources (like images, HTML) to reduce bandwidth and improve response times for subsequent requests.
This question belongs to: Computer Internet and Web Technologies
Question #78
Which of the following is a popular open-source web browser?
A. Firefox
B. Internet Explorer
C. Edge
D. Safari
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Correct Answer: Option A

Explanation:
Mozilla Firefox is an open-source web browser developed by the Mozilla Foundation. Internet Explorer, Safari, and Edge are proprietary.
This question belongs to: Computer Internet and Web Technologies
Question #79
What does the acronym HTML stand for?
A. HighTech Markup Language
B. HyperText Model Language
C. HyperText Markup Language
D. Hyperlink Text Model Language
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Correct Answer: Option C

Explanation:
HTML stands for HyperText Markup Language, the standard markup language for creating web pages and web applications.
This question belongs to: Computer Internet and Web Technologies
Question #80
What is the purpose of a web browser's 'incognito' or 'private' mode?
A. To block all ads
B. To encrypt all traffic automatically
C. To not save browsing history, cookies, and form data locally
D. To prevent websites from tracking you
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Correct Answer: Option C

Explanation:
Private browsing mode does not save browsing history, cookies, or form data after the session ends, but does not make the user invisible to websites or ISPs.
This question belongs to: Computer Internet and Web Technologies

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