CTS 1120 Final EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL DEFINED
ANSWERS LATEST ALREADY GRADED A+
Terms in this set (140)
Betty receives a ciphertext message C. Decryption
from her colleague Tim. What type
of function does Betty need to use
to read the plaintext message?
A. Encryption
B. Hashing
C. Decryption
D. Validation
Alice and Bob would like to D. Diffie-Hellman
communicate with each other using
a session key but they do not
already have a shared secret key.
Which algorithm can they use to
exchange a secret key?
A. Rivest, Shamir, Adelman (RSA)
B. Message digest algorithm (MD5)
C. Blowfish
D. Diffie-Hellman
,Gary is sending a message to B. Integrity
Patricia. He wants to ensure that
nobody tampers with the message
while it is in transit. What goal of
cryptography is Gary attempting to
achieve?
A. Confidentiality
B. Integrity
C. Authentication
D. Nonrepudiation
When Patricia receives a message D. Nonrepudiation
from Gary, she wants to be able to
demonstrate to Sue that the
message actually came from Gary.
What goal of cryptography is
Patricia attempting to achieve?
A. Confidentiality
B. Integrity
C. Authentication
D. Nonrepudiation
,Which information security C. Certification
objective allows trusted entities to
endorse information?
A. Validation
B. Authorization
C. Certification
D. Witnessing
Which approach to cryptography A. Quantum cryptography
provides the strongest theoretical
protection?
A. Quantum cryptography
B. Asymmetric cryptography
C. Elliptic curve cryptography
D. Classic cryptography
Which type of cipher works by C. Transposition
rearranging the characters in a
message?
A. Substitution
B. Steganographic
C. Transposition
D. Asymmetric
Which set of characteristics C. Symmetric, stream, substitution
describes the Caesar cipher
accurately?
A. Asymmetric, block, substitution
B. Asymmetric, stream, transposition
C. Symmetric, stream, substitution
D. Symmetric, block, transposition
, What is the only unbreakable cipher B. Vernam
when it is used properly?
A. Rivest-Shamir-Adelman (RSA)
B. Vernam
C. Elliptic Curve Diffie-Hellman in
Ephemeral mode (ECDHE)
D. Blowfish
Which cryptographic attack offers A. Chosen plaintext
cryptanalysts the most information
about how an encryption algorithm
works?
A. Chosen plaintext
B. Ciphertext only
C. Known plaintext
D. Chosen ciphertext
What mathematical problem forms A. Factoring large primes
the basis of most modern
cryptographic algorithms?
A. Factoring large primes
B. Traveling salesman problem
C. Quantum mechanics
D. Birthday problem
What is NOT an effective key B. Unencrypted email
distribution method for plaintext
encryption keys?
A. Paper
B. Unencrypted email
C. CD
D. Smart card
QUESTIONS AND CORRECTLY WELL DEFINED
ANSWERS LATEST ALREADY GRADED A+
Terms in this set (140)
Betty receives a ciphertext message C. Decryption
from her colleague Tim. What type
of function does Betty need to use
to read the plaintext message?
A. Encryption
B. Hashing
C. Decryption
D. Validation
Alice and Bob would like to D. Diffie-Hellman
communicate with each other using
a session key but they do not
already have a shared secret key.
Which algorithm can they use to
exchange a secret key?
A. Rivest, Shamir, Adelman (RSA)
B. Message digest algorithm (MD5)
C. Blowfish
D. Diffie-Hellman
,Gary is sending a message to B. Integrity
Patricia. He wants to ensure that
nobody tampers with the message
while it is in transit. What goal of
cryptography is Gary attempting to
achieve?
A. Confidentiality
B. Integrity
C. Authentication
D. Nonrepudiation
When Patricia receives a message D. Nonrepudiation
from Gary, she wants to be able to
demonstrate to Sue that the
message actually came from Gary.
What goal of cryptography is
Patricia attempting to achieve?
A. Confidentiality
B. Integrity
C. Authentication
D. Nonrepudiation
,Which information security C. Certification
objective allows trusted entities to
endorse information?
A. Validation
B. Authorization
C. Certification
D. Witnessing
Which approach to cryptography A. Quantum cryptography
provides the strongest theoretical
protection?
A. Quantum cryptography
B. Asymmetric cryptography
C. Elliptic curve cryptography
D. Classic cryptography
Which type of cipher works by C. Transposition
rearranging the characters in a
message?
A. Substitution
B. Steganographic
C. Transposition
D. Asymmetric
Which set of characteristics C. Symmetric, stream, substitution
describes the Caesar cipher
accurately?
A. Asymmetric, block, substitution
B. Asymmetric, stream, transposition
C. Symmetric, stream, substitution
D. Symmetric, block, transposition
, What is the only unbreakable cipher B. Vernam
when it is used properly?
A. Rivest-Shamir-Adelman (RSA)
B. Vernam
C. Elliptic Curve Diffie-Hellman in
Ephemeral mode (ECDHE)
D. Blowfish
Which cryptographic attack offers A. Chosen plaintext
cryptanalysts the most information
about how an encryption algorithm
works?
A. Chosen plaintext
B. Ciphertext only
C. Known plaintext
D. Chosen ciphertext
What mathematical problem forms A. Factoring large primes
the basis of most modern
cryptographic algorithms?
A. Factoring large primes
B. Traveling salesman problem
C. Quantum mechanics
D. Birthday problem
What is NOT an effective key B. Unencrypted email
distribution method for plaintext
encryption keys?
A. Paper
B. Unencrypted email
C. CD
D. Smart card
