What is the primary function of an 'Authoritative Name Server' operating within the broader Domain Name System framework? MCQ with Answer and Explanation

Question
What is the primary function of an 'Authoritative Name Server' operating within the broader Domain Name System framework?
A. To block junk automated messages from entering incoming email server queues
B. To monitor local physical computer operating temperatures
C. To render visual HTML page documents cleanly inside browsers
D. To provide the definitive, official mapping of a domain name to its corresponding IP address for a DNS query
Answer: Option D
Solution (By JKSSB Mock Tests)
An authoritative name server holds the actual, verified DNS record configurations for a domain, providing final, definitive IP answers to inquiring DNS resolvers.
This question belongs to: Computer Internet and Web Technologies
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What is the purpose of the 'Cookie' header in an HTTP request?
A. To set new cookies on the client
B. To send stored cookies from the client to the server
C. To check cookie existence
D. To delete cookies
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Correct Answer: Option B

Explanation:
The Cookie header is used by the client to send previously stored cookies to the server, enabling session management.
This question belongs to: Computer Internet and Web Technologies
Question #2
Which parameter indicates a 'Web Cache Poisoning' exploit intent?
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Correct Answer: Option D

Explanation:
Web cache poisoning involves forcing cache servers to store invalid or malicious HTTP responses, which are then distributed to unsuspecting users requesting the same page.
This question belongs to: Computer Internet and Web Technologies
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Which of the following is a common port used for MySQL database connections?
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Correct Answer: Option C

Explanation:
Port 3306 is the default for MySQL. Port 5432 is PostgreSQL, 1521 is Oracle, 1433 is Microsoft SQL Server.
This question belongs to: Computer Internet and Web Technologies
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