Which of the following is an example of an open-source web browser developed by the Mozilla Foundation? MCQ with Answer and Explanation

Question
Which of the following is an example of an open-source web browser developed by the Mozilla Foundation?
A. Chrome
B. Firefox
C. Edge
D. Safari
Answer: Option B
Solution (By JKSSB Mock Tests)
Firefox is a popular open-source web browser developed and managed by the Mozilla Foundation and its subsidiary.
This question belongs to: Computer Internet and Web Technologies
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Question #1
What does a '500 Internal Server Error' message from a web address generally represent?
A. The user entered an incorrect account password.
B. The specific webpage directory structure was typed incorrectly.
C. A general-purpose error indicating that the server encountered an unexpected condition that prevented it from fulfilling the request.
D. The client computer has disconnected from its router box.
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Correct Answer: Option C

Explanation:
The 500 status code is a generic catch-all server-side error showing that the web server ran into a script configuration or system conflict preventing normal execution.
This question belongs to: Computer Internet and Web Technologies
Question #2
Which HTTP method is idempotent?
A. POST
B. Both PUT and DELETE
C. DELETE
D. PUT
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Correct Answer: Option B

Explanation:
PUT and DELETE are idempotent: multiple identical requests have the same effect as a single request. POST is not idempotent.
This question belongs to: Computer Internet and Web Technologies
Question #3
What is the function of the 'Drafts' folder inside a standard email client workspace?
A. To hold incoming junk message files safely until deletion
B. To archive sent communications permanently
C. To clear configuration script parameters automatically
D. To store email messages that have been composed or partially written but have not yet been sent to the recipients
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Correct Answer: Option D

Explanation:
The Drafts folder automatically or manually saves working email compositions so users can return to edit and send them later without losing their progress.
This question belongs to: Computer Internet and Web Technologies
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