CCST Essential Security Principles (CIA) 2

Question 1

Which CIA triad component ensures that data has not been altered without authorization?

Accepted Answer

Integrity

Answer

Integrity ensures data remains accurate and unmodified by unauthorized parties.

Question 2

A company's web server crashes and customers cannot access the online store. Which CIA principle is violated?

Accepted Answer

Availability

Answer

Availability ensures systems are accessible when needed. A server crash preventing access violates this.

Question 3

Which security control best protects the confidentiality of data transmitted over a public network?

Accepted Answer

Encryption

Answer

Encryption makes data unreadable without the proper key, providing primary confidentiality protection during transmission.

Question 4

What is the purpose of access control lists (ACLs) in relation to the CIA triad?

Accepted Answer

They support confidentiality and integrity by restricting who can view or modify resources

Answer

ACLs support confidentiality (restricting who views data) and integrity (restricting who modifies data).

Question 5

Which approach provides defense in depth for CIA triad protections?

Accepted Answer

Implementing multiple layers of security controls addressing confidentiality, integrity, and availability

Answer

Defense in depth uses multiple overlapping layers so if one fails, others still provide protection.

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