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Information Security Fundamentals

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Questions and Answers

What is the primary purpose of digital signatures?

To encrypt information transferred using electronic systems

To verify the authenticity of messages (correct)

To ensure the confidentiality of messages

To control access to electronic systems

What binds a 'subject' to a 'public key' in a digital certificate?

A trust anchor

A digital signature (correct)

A certification path

An asymmetric encryption algorithm

What is the purpose of a certification path?

To control access to digital certificates

To establish a chain of trust between certificates (correct)

To encrypt information transferred using electronic systems

To verify the authenticity of a digital signature

What is the primary benefit of using asymmetric cryptography in digital signatures?

It enables digital signature creation Signup and view all the answers

What is the purpose of the 'issuer' in a digital certificate?

To verify the issuer's digital signature Signup and view all the answers

What is the primary goal of digital signatures in terms of information security?

To ensure authentication Signup and view all the answers

What is the term for unauthorised alteration of information?

Tampering Signup and view all the answers

What is the type of attack where an attacker sends messages using another principal's identity?

Masquerading Signup and view all the answers

What is the number of keys required for n users to communicate securely with each other using pre-shared symmetric keys?

n*(n-1)/2 keys Signup and view all the answers

What is the purpose of cryptography?

To reduce information security risks Signup and view all the answers

What is the layer where IPSec operates?

Network Layer Signup and view all the answers

What is the term for obtaining copies of messages without authority?

Eavesdropping Signup and view all the answers

What is the primary concern of confidentiality in information security?

Preventing unauthorized disclosure of information Signup and view all the answers

What is the purpose of authentication in information security?

To verify the identity of an entity Signup and view all the answers

What is the primary concern of integrity in information security?

Ensuring information is accurate and complete Signup and view all the answers

What is the term for a weakness of an asset or control that can be exploited by one or more threats?

Vulnerability Signup and view all the answers

What is the term for the result of an information security incident, caused by a threat, which affects assets?

Impact Signup and view all the answers