Security Objectives and Attacks Quiz

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What does availability ensure in the context of security objectives?

Access to information is not denied to authorized users. (correct)

The system is protected from unauthorized manipulation.

System users are verified and trusted.

Data integrity is maintained and preserved.

Which concept goes beyond the traditional CIA triad in defining security objectives?

Traceability (correct)

Authenticity

Integrity

Availability

What does authenticity ensure in a system?

That information is always available to users.

That users are who they claim to be. (correct)

That actions can be traced to responsible parties.

That systems can recover from faults.

Which of the following describes accountability in security objectives?

The ability to trace actions back to the responsible entity. Signup and view all the answers

What is a potential consequence of a loss of availability?

Disruption of access to information for authorized users. Signup and view all the answers

Which security goal ensures actions can be uniquely identified with responsible parties?

Accountability Signup and view all the answers

Which term describes the confidence in the validity of a message's originator?

Authenticity Signup and view all the answers

What aspect does not fall under the CIA triad?

Accountability Signup and view all the answers

What is the purpose of systems keeping records of their activities?

To permit forensic analysis of security breaches Signup and view all the answers

What property does confidentiality address in information security?

The unauthorized disclosure of information Signup and view all the answers

Which of the following actions would typically constitute a security attack?

Unauthorized access to information resources Signup and view all the answers

What does data integrity ensure regarding information?

Data is changed only in authorized manners Signup and view all the answers

Which of the following is a consequence of a loss of confidentiality?

Unauthorized disclosure of information Signup and view all the answers

What does the OSI Security Architecture primarily provide to managers?

A way to organize security provision tasks Signup and view all the answers

Which of the following is NOT a component of data integrity?

Restricting access to outdated data Signup and view all the answers

What can be described as a security objective under the OSI Security Architecture?

Confidentiality Signup and view all the answers

What is the primary goal of a passive attack?

To capture and analyze data being transmitted Signup and view all the answers

What type of passive attack involves altering the contents of a message?

Message modification Signup and view all the answers

Which of the following is an example of a denial-of-service attack?

Sending excessive requests to a server to make it unavailable Signup and view all the answers

Replay attacks are characterized by which of the following?

The interception and retransmission of data Signup and view all the answers

Which of the following describes traffic analysis?

Monitoring patterns of communication Signup and view all the answers

What does access control allow in a networked environment?

Restricting unauthorized user activities Signup and view all the answers

What does the release of message contents entail?

Monitoring unprotected communications to gain information Signup and view all the answers

Which statement accurately describes the role of an authentication service?

It verifies the identity of the message source Signup and view all the answers

What is the primary purpose of security services in communication?

To counter security attacks and enhance data security Signup and view all the answers

Which of the following accurately describes an active attack?

An attack that modifies stored or transmitted data Signup and view all the answers

In a masquerade attack, what does one entity do?

Pretends to be a different entity Signup and view all the answers

What can a masquerade attack potentially allow an entity to do?

Gain unauthorized privileges by impersonating a higher-privileged entity Signup and view all the answers

Which type of attack involves replaying previously captured authentication sequences?

Replay attack Signup and view all the answers

What is NOT a characteristic of active attacks?

They solely intercept data without interaction Signup and view all the answers

Which of the following is considered a type of active attack?

Denial of service Signup and view all the answers

How should the original message be handled to maintain security?

It needs to be well encrypted and then decoded at the receiver's end Signup and view all the answers

What is the main goal of a denial-of-service attack?

To disrupt the availability of a service or network Signup and view all the answers

What does data confidentiality primarily protect against?

Passive attacks that access information Signup and view all the answers

Which of the following ensures that information is modified only by authorized individuals?

Data integrity Signup and view all the answers

How does nonrepudiation serve in communication?

By ensuring message senders cannot deny sending the message Signup and view all the answers

Which protection layer covers all user data transmitted over a certain period?

Data confidentiality Signup and view all the answers

What is implied by the term 'data integrity'?

Messages are received unchanged and as sent Signup and view all the answers

What might happen during a network overload as part of a denial-of-service attack?

Performance degradation occurs Signup and view all the answers

Which condition does not pertain to the protection of data in transmission?

Data compression Signup and view all the answers

Study Notes