CASP+ Chapter 6 - Review

You have been asked by a member of senior management to explain the importance of encryption and define what symmetric encryption offers. Which of the following offers the best explanation?

• Nonrepudiation

• Confidentiality

• Hashing

• Privacy and authentication

As the security administrator for your organization, you must be aware of all types of hashing algorithms. Which fat-block algorithm was developed by Ron Rivest and offers a 128-bit output

• Salsa20

• 3DES

• CHACHA

• RC5

A co-worker is concerned about the veracity of a claim because the sender of an email denies sending it. The co-worker wants a way to prove the authenticity of an email. Which would you recommend?

• Hashing

• Digital Signature

• Symmetric encryption

• Asymmetric encryption

A junior admin at a sister company called to report a possible exposed private key that is used for PKI transactions. The administrator would like to know the easiest way to check whether the lost key has been flagged by the system. What are you going to recommend to the administrator?

• Hashing

• Issuance to entities

• Adding to RA

• Wildcard verification

You've discovvered that an expired certificate is being used repeatedly to gain logon privileges. To what list should the certificate have been added?

• Wildcard verification

• Expired key revocation list

• Online Certificate Status Department

• Certificate revocation list (CRL)

A junior admin comes to you in a panic after seeing the cost for certificates. She would like to know if there is a way to get one certificate to cover all domains and subdomains for the organization. What solution can you offer?

• Wildcards

• Blankety certificates

• Distributed certificates

• No such solution exists

Which of the following is not an advantage of symmetric encryption?

• It's powerful

• A small key works well for bulk encryption

• It offers confidentiality

• Key exchange is easy

Most authentication systems make use of a one-way encryption process. Which of the following offers the best example of one-way encryption?

• Asymmetric Encryption

• Symmetric Encryption

• Hashing

• PKI

Which of the following algorithms would serve to prove the integrity of a file?

• RSA

• Diffie-Hellman

• SHA256

• ECC

Which type of encryption offers the easiest key exchange and key management?

• Symmetric

• Asymmetric

• Hashing

• Digital Signatures