What is the primary operational task of a 'Mail Transfer Agent' (MTA) component within internet email routing infrastructures? MCQ with Answer and Explanation

Question
What is the primary operational task of a 'Mail Transfer Agent' (MTA) component within internet email routing infrastructures?
A. To provide a user interface to display images inside messages
B. To forward and route electronic mail messages between different server networks using SMTP rules until they reach their destination
C. To clear old tracking cookies off terminal units
D. To convert plain text lines into graphic layouts natively
Answer: Option B
Solution (By JKSSB Mock Tests)
The Mail Transfer Agent (MTA) is software that transfers electronic mail messages from one computer server to another using SMTP.
This question belongs to: Computer Internet and Web Technologies
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Question #1
Which type of web architecture uses a 'Three-Tier' format to divide application logical structures cleanly?
A. Local router, WAN switch, and Global satellite interface
B. HTML file, CSS style script, and JavaScript dynamic loader
C. Sender inbox, Gateway router, and Recipient junk folder
D. Presentation tier (Browser), Application tier (Server logic), and Data tier (Database)
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Correct Answer: Option D

Explanation:
A standard three-tier web application architecture separates concerns into the presentation layer (UI), the application logic tier, and the database storage tier.
This question belongs to: Computer Internet and Web Technologies
Question #2
Which of the following is a mechanism for websites to request permission to access user's location, camera, etc.?
A. Web API (Permissions API)
B. Cookies
C. HTTP headers
D. URL parameters
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Correct Answer: Option A

Explanation:
The Permissions API allows websites to request permissions for sensitive features like geolocation, camera, microphone, etc.
This question belongs to: Computer Internet and Web Technologies
Question #3
What is the function of the 'Bookmarks' or 'Favorites' feature inside a modern browser application?
A. To encrypt user bank accounts securely against malware links
B. To wipe localized browser history tracks automatically
C. To save a direct link reference to specific URLs so users can easily visit them later
D. To store backup electronic mail archives offline
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Correct Answer: Option C

Explanation:
Bookmarks allow users to store the names and web addresses of favorite or frequently visited sites within the browser interface for quick future access.
This question belongs to: Computer Internet and Web Technologies
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