What mechanism does an internet email communication layout use to notify a sender that a designated recipient mailbox address is completely invalid or non-existent? MCQ with Answer and Explanation

Question
What mechanism does an internet email communication layout use to notify a sender that a designated recipient mailbox address is completely invalid or non-existent?
A. Returning an automated 'Hard Bounce' or 'Undelivered Mail' notification error message from the mail server
B. Running automatic DNS reverse lookup queries inside terminal devices
C. Altering the local browser cache layout automatically
D. Encrypting the sender's system password variables
Answer: Option A
Solution (By JKSSB Mock Tests)
A hard bounce is a permanent delivery failure message indicating that an email address is invalid, typo-ridden, or has been permanently deactivated by the hosting provider.
This question belongs to: Computer Internet and Web Technologies
Request complete Subject PDF

Discuss this Question (0)

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

Practice More Internet and Web Technologies Questions

Question #1
What is the primary operational task of a 'TLD (Top-Level Domain) Name Server' operating within the Domain Name System hierarchy?
A. To parse HTML structural page code inside browser windows
B. To filter email spam items from incoming mail folders
C. To maintain records for all domain names sharing a specific extension (like .com or .org) and direct queries to their respective authoritative nameservers
D. To track local physical computer operating temperature logs
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
TLD nameservers maintain the directory data for specific domain extensions, acting as an essential intermediate link in the DNS resolution process by routing queries to authoritative servers.
This question belongs to: Computer Internet and Web Technologies
Question #2
Which email infrastructure component is responsible for receiving inbound emails from external domains and placing them into the correct individual user's mailbox storage?
A. DNS Resolver
B. MDA (Mail Delivery Agent)
C. MIME encoder block
D. MUA (Mail User Agent)
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
The Mail Delivery Agent (MDA) accepts messages handed down from mail transport systems and writes them directly into the recipient's localized mailbox storage.
This question belongs to: Computer Internet and Web Technologies
Question #3
Which of the following is a method of web authentication that uses a combination of username and password?
A. Both Basic and Digest
B. Digest authentication
C. Basic authentication
D. Bearer token
Discuss
Get Complete Subject PDF for Computer

Correct Answer: Option A

Explanation:
Both Basic and Digest authentication are HTTP authentication schemes that rely on username/password, though they differ in security.
This question belongs to: Computer Internet and Web Technologies
Explore All Internet and Web Technologies MCQs
Today's Top Topics
Computer Hardware 430 Operating Systems 510 Programming Languages 0 Cyber Security 269 Database Management System (DBMS) 278
Explore Subjects
Reasoning 2064 Science 4430 Accountancy and Statistics 3179 Economy GK 2220 Computer 5279
Practice Mix
Which national park in Himachal Pradesh is known for its high-altitude grasslands and is a key habitat for the Himalayan Tahr?
Who was the first Indian to be the Coordination Secretary?
Which of the following is an example of an animal cell that lacks a nucleus in its mature form?
What is the primary limitation of configuring a network using a point-to-point Full Mesh Topology as the number of nodes scales high?
Double fertilization in angiosperms was discovered by: