What mechanism does a browser use to maintain persistent client-side data store pools across tabs using basic key-value pairs without expiration deadlines via JavaScript? MCQ with Answer and Explanation

What mechanism does a browser use to maintain persistent client-side data store pools across tabs using basic key-value pairs without expiration deadlines via JavaScript?
A. Session Cookies
B. DNS Registry Logs
C. LocalStorage
D. RAM Buffers
Answer: Option C
Solution (By JKExamLibrary)
The Web Storage API provides 'localStorage', allowing web applications to save data locally inside the user's browser with no built-in expiration timeline.

This question belongs to: Computer Internet and Web Technologies

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Question #1 Report Error
What is the purpose of the 'Host' header in an HTTP request?
A. To indicate the domain name of the server
B. To specify the client's IP address
C. To set the content type
D. To authenticate the user

Correct Answer: Option A


Explanation:
The Host header specifies the domain name of the server (and optionally the port) to which the request is being sent, enabling virtual hosting.

This question belongs to: Computer Internet and Web Technologies
Question #2 Report Error
Which of the following is a characteristic of a web service?
A. It is platform-independent
B. All of the above
C. It can be discovered via UDDI
D. It uses standard web protocols (HTTP)

Correct Answer: Option B


Explanation:
Web services are designed to interoperate over HTTP, are platform-agnostic, and can be published and discovered using standards like WSDL and UDDI.

This question belongs to: Computer Internet and Web Technologies
Question #3 Report Error
Which of the following parameters represents an accurate description of the web development concept called 'Single Sign-On' (SSO)?
A. An authentication mechanism that allows a user to log in once and gain secure access to multiple independent web applications or services without re-entering credentials
B. A physical computer motherboard processing chip specification
C. A specialized local browser link designed to clear cache blocks
D. An unlinked text documentation archive stored on local devices

Correct Answer: Option A


Explanation:
SSO authenticates a user once across a centralized identity provider, passing secure tokens to connected web systems to streamline access and eliminate login fatigue.

This question belongs to: Computer Internet and Web Technologies