Chapter 4 Cybersecurity

What encryption algorithm uses one key to encrypt data and a different key to decrypt data?

• asymmetric

• symmetric

• one-time pad

• transposition

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

• Vignere

• Caesar

• AES

• 3DES

What cryptographic algorithm is used by the NSA and includes the use of elliptical curves for digital signature generation and key exchange?

• RSA

• AES

• IDEA

• ECC

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

• guard dogs

• policies and procedures

• encryption

• background checks

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

• fences to protect the perimeter of a building

• biometrics to validate physical characteristics

  
  

• swipe cards to allow access to a restricted area

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

• firewalls to monitor traffic

_______________ encryption algorithms use the same pre-shared key to encrypt and decrypt data.

Which term describes the technology that protects software from unauthorized access or modification?

• copyright

• trademark

• watermarking

• access control

What is the name of the method in which letters are rearranged to create the ciphertext?

• one-time pad

• enigma

• transposition

• substitution

What term is used to describe concealing data in another file such as a graphic, audio, or other text file?

• hiding

• masking

• 
  

  steganography

• obfuscation

What is the term used to describe the science of making and breaking secret codes?

• impersonation

• cryptology

• factorization

• spoofing