Internet and Web Technologies MCQs

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Internet and Web Technologies MCQs

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

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Total Questions

Practice Questions

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Question #161
What is the difference between HTTP and HTTPS regarding encryption?
A. Neither uses encryption
B. HTTPS uses encryption, HTTP does not
C. HTTP uses encryption, HTTPS does not
D. Both use encryption
Discuss
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Correct Answer: Option B

Explanation:
HTTP transmits data in plain text, while HTTPS encrypts the communication using SSL/TLS, ensuring confidentiality and integrity.
This question belongs to: Computer Internet and Web Technologies
Question #162
Which of the following is a type of web-based attack that tricks a user into executing unwanted actions on a trusted site where they are authenticated?
A. CSRF
B. SQL Injection
C. Phishing
D. XSS
Discuss
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Correct Answer: Option A

Explanation:
Cross-Site Request Forgery (CSRF) forces an authenticated user to perform actions on a web application without their consent.
This question belongs to: Computer Internet and Web Technologies
Question #163
What does the term 'bandwidth' refer to in web hosting?
A. The processing power of the server
B. The number of visitors to the site
C. The amount of data that can be transferred per unit of time
D. The storage space on the server
Discuss
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Correct Answer: Option C

Explanation:
Bandwidth refers to the maximum amount of data transmitted over a network connection in a given time, often measured in Mbps or GB/month.
This question belongs to: Computer Internet and Web Technologies
Question #164
Which of the following is an example of a web browser extension?
A. Firefox Monitor
B. AdBlock
C. Google Search
D. Chrome Web Store
Discuss
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Correct Answer: Option B

Explanation:
AdBlock is a popular browser extension that blocks advertisements. The Chrome Web Store is a store for extensions, not an extension itself.
This question belongs to: Computer Internet and Web Technologies
Question #165
What is the function of a 'webhook'?
A. To encrypt web traffic
B. To manage DNS records
C. To cache static content
D. To allow one web application to notify another of events via HTTP
Discuss
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Correct Answer: Option D

Explanation:
A webhook is a way for an app to provide real-time information to other applications by sending HTTP requests when specific events occur.
This question belongs to: Computer Internet and Web Technologies
Question #166
Which of the following is a markup language used to define the structure of data, often used in web syndication (e.g., RSS)?
A. YAML
B. JSON
C. HTML
D. XML
Discuss
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Correct Answer: Option D

Explanation:
XML is a markup language commonly used for RSS feeds and other data formats, though JSON is also used.
This question belongs to: Computer Internet and Web Technologies
Question #167
What is the purpose of the 'viewport' meta tag in HTML?
A. To define the initial scale
B. To control the layout on mobile browsers
C. All of the above
D. To set the zoom level
Discuss
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Correct Answer: Option C

Explanation:
The viewport meta tag is used to set the visible area and scaling for mobile devices, including width, initial scale, etc.
This question belongs to: Computer Internet and Web Technologies
Question #168
Which of the following is a protocol used for managing network devices?
A. SNMP
B. SMTP
C. FTP
D. HTTP
Discuss
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Correct Answer: Option A

Explanation:
SNMP (Simple Network Management Protocol) is used for monitoring and managing network devices.
This question belongs to: Computer Internet and Web Technologies
Question #169
What is the role of a web security certificate (SSL/TLS certificate)?
A. To block malicious content
B. To store user passwords
C. To register domain names
D. To authenticate the identity of a website and enable encrypted connection
Discuss
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Correct Answer: Option D

Explanation:
An SSL/TLS certificate verifies the identity of a website and allows for encrypted communication via HTTPS.
This question belongs to: Computer Internet and Web Technologies
Question #170
Which of the following is a method to prevent email spam?
A. DKIM (DomainKeys Identified Mail)
B. DMARC (Domain-based Message Authentication, Reporting & Conformance)
C. All of the above
D. SPF (Sender Policy Framework)
Discuss
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Correct Answer: Option C

Explanation:
SPF, DKIM, and DMARC are email authentication techniques used to prevent spoofing and reduce spam.
This question belongs to: Computer Internet and Web Technologies
Question #171
What does the acronym CSS stand for?
A. Common Style Sheets
B. Cascading Style Sheets
C. Computer Style Sheets
D. Creative Style Sheets
Discuss
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Correct Answer: Option B

Explanation:
CSS stands for Cascading Style Sheets, used to describe the presentation of a document written in HTML.
This question belongs to: Computer Internet and Web Technologies
Question #172
Which of the following is a popular JavaScript library for building user interfaces?
A. Vue.js
B. React
C. All of the above
D. Angular
Discuss
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Correct Answer: Option C

Explanation:
React, Angular, and Vue.js are all popular JavaScript frameworks/libraries for building front-end user interfaces.
This question belongs to: Computer Internet and Web Technologies
Question #173
What is the purpose of the 'action' attribute in an HTML form?
A. To validate form input
B. To set the character encoding
C. To define the HTTP method
D. To specify the URL where form data should be sent
Discuss
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Correct Answer: Option D

Explanation:
The action attribute defines the URL to which the form's data is submitted when the form is submitted.
This question belongs to: Computer Internet and Web Technologies
Question #174
Which of the following is a type of web cookie that is deleted when the browser is closed?
A. Persistent cookie
B. Session cookie
C. Third-party cookie
D. Secure cookie
Discuss
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Correct Answer: Option B

Explanation:
Session cookies (non-persistent) exist only until the browser is closed, while persistent cookies have an expiration date.
This question belongs to: Computer Internet and Web Technologies
Question #175
What is the function of a web crawler in a search engine?
A. To discover and retrieve web pages for indexing
B. To manage user queries
C. To rank search results
D. To display ads
Discuss
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Correct Answer: Option A

Explanation:
A web crawler (spider) systematically browses the web to collect pages for the search engine's index.
This question belongs to: Computer Internet and Web Technologies
Question #176
Which of the following is a valid scheme in a URL?
A. http
B. https
C. All of the above
D. ftp
Discuss
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Correct Answer: Option C

Explanation:
http, https, and ftp are all valid URL schemes (protocols).
This question belongs to: Computer Internet and Web Technologies
Question #177
What is the purpose of the 'X-Frame-Options' HTTP header?
A. To enable CORS
B. To prevent clickjacking by controlling iframe embedding
C. To specify content security policy
D. To set cookies
Discuss
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Correct Answer: Option B

Explanation:
X-Frame-Options is used to indicate whether a browser should be allowed to render a page in a , , or , helping to prevent clickjacking.
This question belongs to: Computer Internet and Web Technologies
Question #178
Which of the following is a type of web hosting where multiple websites share a single server?
A. Dedicated hosting
B. Shared hosting
C. VPS hosting
D. Cloud hosting
Discuss
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Correct Answer: Option B

Explanation:
Shared hosting means multiple websites reside on the same physical server and share resources.
This question belongs to: Computer Internet and Web Technologies
Question #179
What is the function of the 'ping' tool in relation to a URL?
A. To test website speed
B. To check if the web server is reachable
C. To trace the network route
D. To resolve the domain to an IP
Discuss
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Correct Answer: Option B

Explanation:
Ping sends ICMP echo requests to the host to determine connectivity and round-trip time.
This question belongs to: Computer Internet and Web Technologies
Question #180
Which of the following is a web standard developed by the World Wide Web Consortium (W3C)?
A. CSS
B. HTML
C. All of the above
D. XML
Discuss
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Correct Answer: Option C

Explanation:
W3C develops and maintains many web standards, including HTML, CSS, and XML.
This question belongs to: Computer Internet and Web Technologies

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