What does the 'Cross-Origin Resource Sharing' (CORS) security mechanism instruct a web browser to validate when a script requests a resource from a different domain? MCQ with Answer and Explanation

Question Report Error

What does the 'Cross-Origin Resource Sharing' (CORS) security mechanism instruct a web browser to validate when a script requests a resource from a different domain?

A. To route incoming text emails through unencrypted FTP pathways

B. To double the physical processing speed of the network router adapter

C. To delete temporary history tracks automatically from local storage modules

D. To check if the remote server explicitly permits cross-domain requests from the originating site, preventing unauthorized data access

Answer: Option D

Solution (By JKExamLibrary)

CORS is a browser security mechanism that uses HTTP headers to determine whether scripts running in a browser are allowed to access resources from a different origin domain.

This question belongs to: Computer Internet and Web Technologies

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Internet and Web Technologies Questions

Question #1 Report Error

What does a '504 Gateway Timeout' HTTP status code tell a web user?

A. The user entered an unapproved domain string value inside the search engine interface.

B. The digital SSL identity certificate has completely expired.

C. The browser cache folder space has run out of local memory storage.

D. The server, while acting as a gateway or proxy, did not receive a timely response from the upstream backend server to complete the request.

View Answer & Solution Discuss

Correct Answer: Option D

Explanation:
A 504 status code means that an intermediate proxy or gateway server timed out while waiting for a response from an internal upstream server during a request loop.

This question belongs to: Computer Internet and Web Technologies

Question #2 Report Error

What is the purpose of an 'IP Address' assignment in internet architectures?

A. To uniquely identify a specific device interface on a network, allowing data packets to be correctly routed to it

B. To clean automated malware scripts from browser cache blocks

C. To store email files permanently inside local terminal drives

D. To format visual layouts of web content documents cleanly

View Answer & Solution Discuss

Correct Answer: Option A

Explanation:
An Internet Protocol (IP) address serves as a unique logical address identifier for a device on an IP network, enabling accurate packet routing.

This question belongs to: Computer Internet and Web Technologies

Question #3 Report Error

What mechanism does an online streaming video channel implement over web connections to adjust video quality dynamically on the fly based on fluctuations in a user's real-time internet bandwidth?

A. Static FTP file compression adjustments

B. Running outbound SMTP mail transport routines

C. Adaptive Bitrate Streaming (ABS)

D. Altering local hardware DNS settings dynamically

View Answer & Solution Discuss

Correct Answer: Option C

Explanation:
Adaptive Bitrate Streaming monitors network conditions and device performance in real time, shifting between higher and lower quality video streams to prevent playback buffering.

This question belongs to: Computer Internet and Web Technologies

Explore All Internet and Web Technologies MCQs