UGC NET Computer Science December 2019 | Question 129

Question 129

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Consider the following statements with respect to network security :
(a) Message confidentiality means that the sender and the receiver expect privacy.
(b) Message integrity means that the data must arrive at the receiver exactly as they were sent.
(c) Message authentication means the receiver is ensured that the message is coming from the intended sender.
Which of the statements is (are) correct?

1. 1. Only (a) and (b)
2. 2. Only (a) and (c)
3. 3. Only (b) and (c)
4. 4. (a), (b) and (c)

Answer : 4. (a), (b) and (c)

Explanation Question 129

Message Confidentiality
In information security, confidentiality "is the property, that information is not made available or disclosed to unauthorized individuals, entities, or processes." Confidentiality is a component of privacy that implements to protect our data from unauthorized viewers. Examples of confidentiality of electronic data being compromised include laptop theft, password theft, or sensitive emails being sent to the incorrect individuals.

Message Integrity
This means that data cannot be modified in an unauthorized or undetected manner.

Message Authentication
Authentication is the act of verifying a claim of identity.

References:

• Information Security - Confidentiality
• Information Security - Integrity
• Information Security - Authentication

All three statements are correct.

So, option 4 is correct answer

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