CSF - Chapter 4 - 2024

What type of cipher encrypts plaintext one byte or one bit at a time?

• block

• hash

• stream

• elliptical

Which 128-bit block cipher encryption algorithm does the US government use to protect classified information?

• 3DES

• Vignere

• AES

• Skipjack

What encryption algorithm uses the same pre-shared key to encrypt and decrypt data?

• asymmetric

• hash

• symmetric

• one-time pad

A warning banner that lists the negative outcomes of breaking company policy is displayed each time a computer user logs in to the machine. What type of access control is implemented?

• deterrent

• detective

• preventive

• masking

What term is used to describe the technology that replaces sensitive information with a nonsensitive version?

• blanking

• =hiding

• retracting

• whiteout

• masking

Answer explanation

Refer to curriculum topic: 4.3.1
Data masking replaces sensitive information with nonsensitive information. After replacement, the nonsensitive version looks and acts like the original.

The correct answer is: masking

Which three processes are examples of logical access controls? (Choose three.)

• guards to monitor security screens

• swipe cards to allow access to a restricted area

• intrusion detection system (IDS) to watch for suspicious network activity

• biometrics to validate physical characteristics

• firewalls to monitor traffic

Which three protocols use asymmetric key algorithms? (Choose four.)

• Internet Key Exchange (IKE)

• Secure Socket Layer (SSL)

• Secure Shell (SSH)

• Pretty Good Privacy (PGP)

• Secure File Transfer Protocol (SFTP)

Which asymmetric algorithm provides an electronic key exchange method to share the secret key?

• RSA

• DES

• WEP

• Diffie-Hellman

• hashing

Which three devices represent examples of physical access controls? (Choose three.)

• locks

• servers

• video cameras

• swipe cards

• routers

What are three examples of administrative access controls? (Choose three.)

• policies and procedures

• encryption

• hiring practices

• intrusion detection system (IDS)

• background checks