Random bits intermixed with a hash to increase randomness and reduce collisions

Random bits intermixed with a symmetric cipher to increase randomness and make it more secure

Random bits intermixed with a hash to increase randomness and reduce collisions

What advantage do symmetric algorithms have over asymmetric algorithms

It is easier to implement them in software

The greatest weakness with symmetric algorithms is _____.

They are less secure than asymmetric

They are slower than asymmetric

In IPSec, if the VPN is a gateway-gateway or a host-gateway, then which one of the following is true?

Only the tunnel mode can be used

IPSec does not involve gateways

Only transport mode can be used

Encapsulating Security Payload (ESP) authentication must be used

Only the tunnel mode can be used

A real time protocol for verifying certificates (and a newer method than CRL).

Online Certificate Status Protocol (OCSP)

Server-based Certificate Validation Protocol (SCVP)

Public Key Infrastructure (PKI)

Modern symmetric ciphers all make use of one or more s-boxes. Both Feistel and non-Feistel ciphers use these s-boxes. What is an s-box?

A substitution box where input bits are replaced

A black box for the algorithm implementation

A shifting box where input bits are shifted

Another name for the round function

A linear congruential generator is an example of what?

A pseudo random number generator

John works as a cryptography consultant. He finds that people often misunderstand the reality of breaking a cipher. What is the definition of breaking a cipher?

Finding any method that is more efficient than brute force

Rendering the cypher no longer useable

A cipher is defined as what

The algorithm(s) needed to encrypt and decrypt a message

The key used to encrypt a message

Any algorithm used in cryptography

ECCouncil 212-81 Practice Test 2 - Free Online Exam Questions 41-80

Spam

Selling illegal goods, money scams etc.

Hate Speech

Serious attack on a group.

Harassment and bullying

Harassing an individual (including doxing)

Harmful activities

Threatening or glorifying violence or serious harm, including self-harm

Adult content (Consensual)

Nudity/Sexual content

Sexual exploitation and abuse (child safety)

Sexually explicit or suggestive imagery or writing involving minors

Sexual exploitation and abuse (adults and animals)

Sexually explicit or suggestive imagery or writing involving non-consenting adults or non-humans

Plagiarism

Reusing content without attribution (link and blockquotes)

Poorly written

Not in English or has very bad formatting, grammar, and spelling

Inappropriate credential

Author's credential is offensive, spam, or impersonation

Other

Ex. Illegal content, incomplete question...

ECCouncil 212-81 Practice Test 2

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