WorksheetsCYF Theory Quiz - Chapter 4
Total questions: 25
Worksheet time: 14mins
Which term describes the technology that protects software from unauthorized access or modification?
watermarking
copyright
access control
trademark
What is the term used to describe the science of making and breaking secret codes?
cryptology
jamming
factorization
spoofing
impersonation
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?
preventive
deterrent
masking
detective
What is the name of the method in which letters are rearranged to create the ciphertext?
one-time pad
substitution
transposition
enigma
What encryption algorithm uses one key to encrypt data and a different key to decrypt data?
symmetric
one-time pad
transposition
asymmetric
What term is used to describe concealing data in another file such as a graphic, audio, or other text file?
masking
steganography
obfuscation
hiding
What are three examples of administrative access controls? (Choose three.)
policies and procedures
encryption
hiring practices
guard dogs
background checks
creating a message that says one thing but means something else to a specific audience
steganography
social steganography
steganalysis
obfuscation
hiding data within an audio file
steganography
social steganography
steganalysis
obfuscation
discovering that hidden information exists within a graphic file
steganography
social steganography
steganalysis
obfuscation
making a message confusing so it is harder to understand
steganography
social steganography
steganalysis
obfuscation
Which asymmetric algorithm provides an electronic key exchange method to share the secret key?
hashing
WEP
Diffie-Hellman
RSA
DES
What encryption algorithm uses the same pre-shared key to encrypt and decrypt data?
one-time pad
asymmetric
symmetric
hash
What cryptographic algorithm is used by the NSA and includes the use of elliptical curves for digital signature generation and key exchange?
IDEA
AES
El-Gamal
ECC
RSA
a fingerprint scan
something you are
something you have
something you know
a security key fob
something you are
something you have
something you know
a password
something you are
something you have
something you know
Which three processes are examples of logical access controls? (Choose three.)
intrusion detection system (IDS) to watch for suspicious network activity
firewalls to monitor traffic
fences to protect the perimeter of a building
biometrics to validate physical characteristics
guards to monitor security screens
Which two terms are used to describe cipher keys? (Choose two.)
keylogging
key length
key space
key randomness
Which three protocols use asymmetric key algorithms? (Choose three.)
Secure Sockets Layer (SSL)
Secure File Transfer Protocol (SFTP)
Pretty Good Privacy (PGP)
Advanced Encryption Standard (AES)
Secure Shell (SSH)
Which three devices represent examples of physical access controls? (Choose three.)
routers
swipe cards
video cameras
locks
firewalls
What term is used to describe the technology that replaces sensitive information with a nonsensitive version?
hiding
blanking
masking
retracting
whiteout
Which type of cipher is able to encrypt a fixed-length block of plaintext into a 128-bit block of ciphertext at any one time?
transform
block
stream
stream
hash
Which 128-bit block cipher encryption algorithm does the US government use to protect classified information?
AES
Caesar
3DES
Skipjack
Vignere
What type of cipher encrypts plaintext one byte or one bit at a time?
block
hash
enigma
stream
elliptical
