ISC2 Exam ISSMP Topic 1 Question 77 Discussion

Actual exam question for ISC2's ISSMP exam

Question #: 77
Topic #: 1

[All ISSMP Questions]

Which of the following statements about the availability concept of Information security management is true?

AIt determines actions and behaviors of a single individual within a system.

BIt ensures reliable and timely access to resources.

CIt ensures that unauthorized modifications are not made to data by authorized personnel or processes.

DIt ensures that modifications are not made to data by unauthorized personnel or processes.

Show Suggested Answer

Suggested Answer: B, D

The Biba model is a formal state transition system of computer security policy that describes a set of access control rules designed to ensure data integrity. Data and subjects are grouped into ordered levels of integrity. The model is designed so that subjects may not corrupt data in a level ranked higher than the subject, or be corrupted by data from a lower level than the subject.

The Clark-Wilson security model provides a foundation for specifying and analyzing an integrity policy for a computing system.

Answer option C is incorrect. The Bell-LaPadula access control model is mainly used in military systems.

Answer option A is incorrect. There is no such access control model as Clark-Biba.

by Virgie at Dec 22, 2023, 08:12 PM

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15 days ago

B) Ensuring reliable and timely access to resources is the essence of availability in information security. This is a no-brainer!

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Willard

2 days ago

A) It determines actions and behaviors of a single individual within a system.

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Rickie

17 days ago

I agree with Stefan, because availability is all about making sure the resources are accessible when needed.

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Stefan

20 days ago

I think the answer is B) It ensures reliable and timely access to resources.

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