What does a '400 Bad Request' HTTP response status code indicate? MCQ with Answer and Explanation

What does a '400 Bad Request' HTTP response status code indicate?
A. The file was successfully delivered to the local device memory.
B. The requested webpage requires an encrypted private key access certificate.
C. The web hosting facility has completely crashed down.
D. The server cannot process the request because of something perceived to be a client error (e.g., malformed request syntax, invalid routing layout).
Answer: Option D
Solution (By JKSSB Mock Tests)
A 400 Bad Request error indicates that the web server could not understand or process the incoming request due to structural flaws or invalid syntax generated by the client browser.

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Practice More Internet and Web Technologies Questions

Question #1
What mechanism does a browser use to verify the cryptographic identity and authenticity of an HTTPS website during an initial connection handshake?
A. It evaluates the site's digital SSL/TLS Certificate issued by a trusted Certificate Authority (CA).
B. It queries standard local email mailboxes via POP3 paths.
C. It reviews local text browser history traces.
D. It alters network configurations via DHCP scripts.

Correct Answer: Option A


Explanation:
Browsers verify a website's authenticity by checking its digital certificate, which must be cryptographically signed by a recognized, trusted Certificate Authority (CA).

This question belongs to: Computer Internet and Web Technologies
Question #2
Which of the following is a valid email protocol used for retrieving messages from a mail server without deleting them?
A. IMAP
B. SMTP
C. MIME
D. POP3

Correct Answer: Option A


Explanation:
IMAP (Internet Message Access Protocol) allows users to access and manage emails on the server, typically keeping messages on the server, unlike POP3 which often downloads and deletes.

This question belongs to: Computer Internet and Web Technologies
Question #3
What is the role of a web security certificate (SSL/TLS certificate)?
A. To block malicious content
B. To store user passwords
C. To authenticate the identity of a website and enable encrypted connection
D. To register domain names

Correct Answer: Option C


Explanation:
An SSL/TLS certificate verifies the identity of a website and allows for encrypted communication via HTTPS.

This question belongs to: Computer Internet and Web Technologies