What is a web cache? MCQ with Answer and Explanation

What is a web cache?

A. A storage area for frequently accessed web resources

B. A search engine algorithm

C. A protocol for secure communication

D. A type of browser extension

Answer: Option A

Solution (By JKExamLibrary)

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

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Question #1 Report Error

What is the primary security benefit provided by an 'HTTPS' connection over standard unencrypted 'HTTP' communication?

A. It completely prevents malware from downloading automatically to local hard drives.

B. It encrypts data in transit to prevent eavesdropping and data tampering by third parties.

C. It eliminates all forms of comment spam on web blogs.

D. It dramatically boosts physical data transmission speeds over fiber lines.

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Correct Answer: Option B

Explanation:
HTTPS ensures confidentiality and data integrity by encrypting the communication stream between a client and a web server using TLS/SSL.

This question belongs to: Computer Internet and Web Technologies

Question #2 Report Error

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

A. Extensions Engine

B. Bookmarking

C. Tabbed Browsing

D. History Pane

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Correct Answer: Option C

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 #3 Report Error

What is the primary operational task of a 'Local DNS Cache' operating within an individual computer's operating system environment?

A. To parse HTML structural page data inside browser applications

B. To track local physical network interface hardware performance logs

C. To filter email spam items from corporate mail boxes

D. To temporarily store recently resolved domain-to-IP address lookups locally, avoiding the need to query external DNS servers for repeat visits

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Correct Answer: Option D

Explanation:
The local DNS cache retains recent domain resolutions in device memory, reducing latency and network traffic by accelerating address lookups for frequently visited websites.

This question belongs to: Computer Internet and Web Technologies

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