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Exam 6: Advanced Cryptography

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Question 21

Multiple Choice

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Match the following terms to the appropriate definitions. -A process in which keys are managed by a third party, such as a trusted CA​

A) Bridge trust model
B) Certificate Authority (CA)
C) Certificate Repository
D) Digital certificate
E) Distributed trust model
F) key escrow
G) Public key Infrastructure (PKI)
H) Session keys
I) Third-party trust
J) Trust model

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Question 22

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​Select below the secure alternative to the telnet protocol:

A) ​HTTPS
B) ​TLS
C) ​IPsec
D) ​SSH

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Question 23

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A(n) ____________________ trust model can be used in an organization where one CA is responsible for only the digital certificates for that organization.

A document that describes in detail how a CA uses and manages certificates, as well as how end users register for a digital certificate, is known as?

Select below the type of certificate that is often issued from a server to a client, with the purpose of ensuring the authenticity of the server:

Explain the difference between key revocation versus key suspension.

Match the following terms to the appropriate definitions. -The type of trust relationship that can exist between individuals or entities.​

List and describe the entities for which IPsec is transparent.

The vulnerability discovered in IPsec in early 2014 was nicknamed Heartbleed, due to an issue with a heartbeat extension in the protocol.

List the three PKI trust models that use a CA.

When two individuals trust each other because of the trust that exists between the individuals and a separate entity, what type of trust has been established?

____________________ may be defined as confidence in or reliance on another person or entity.

The process by which keys are managed by a third party, such as a trusted CA, is known as?

What protocol below supports two encryption modes: transport and tunnel?

A framework for all of the entities involved in digital certificates for digital certificate management is known as:

List three general duties of a CA.

Using what mechanism below can the non-repudiation of an e-mail and its content be enforced?

Public keys can be stored by embedding them within digital certificates, while private keys can be stored on the user's local system.

Match the following terms to the appropriate definitions. -​A trust model with one CA that acts as a facilitator to interconnect all other CAs

What type of cryptographic algorithm can be used to ensure the integrity of a file's contents?