What is the function of the 'canonical' link tag in SEO? MCQ with Answer and Explanation

Question
What is the function of the 'canonical' link tag in SEO?
A. To indicate the preferred URL when multiple URLs point to the same content
B. To specify the character encoding
C. To set the language
D. To define the site's sitemap
Answer: Option A
Solution (By JKSSB Mock Tests)
The canonical tag helps search engines know which URL is the master copy of a page, preventing duplicate content issues.
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Question #1
Which of the following HTTP status code categories indicates that a server-side failure or system issue occurred while processing a request?
A. 3xx series
B. 5xx series
C. 4xx series
D. 2xx series
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Correct Answer: Option B

Explanation:
HTTP status codes in the 5xx range (such as 500 Internal Error or 502 Bad Gateway) mean the request failed due to an error on the server side.
This question belongs to: Computer Internet and Web Technologies
Question #2
Which specific protocol is built over internet stacks to manage the automated transmission of real-time text alert states inside Internet of Things (IoT) hardware over limited bandwidth links?
A. FTP heavy file transmission channels
B. MQTT (Message Queuing Telemetry Transport)
C. Standard HTTP/1.1 large payload rules
D. POP3 email archive protocols
Discuss
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Correct Answer: Option B

Explanation:
MQTT is a lightweight publish-subscribe network protocol designed to transmit messages between constrained IoT devices over low-bandwidth or unreliable networks.
This question belongs to: Computer Internet and Web Technologies
Question #3
Which of the following is a secure method to transfer files?
A. FTP
B. SFTP
C. HTTP
D. TFTP
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Correct Answer: Option B

Explanation:
SFTP (SSH File Transfer Protocol) provides secure file transfer over SSH, encrypting both commands and data, unlike plain FTP and TFTP.
This question belongs to: Computer Internet and Web Technologies
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