Practice QUESTIONS AND
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RSA - CORRECT ANSWER-_______ is a partially homomorphic crypto system that leverages
prime number characteristics, operates with a 1024-4096 bit variable key size, and 1 round.
A. RSA
B. Diffie-Hellman
C. Chaskey
Symmetric Block - CORRECT ANSWER-Blowfish and Twofish are both _____ ciphers with
common key sizes of 128, 192, or 256 bits.
A. symmetric block
B. symmetric stream
C. asymmetric
RC5 - CORRECT ANSWER-_____ is a symmetric block cipher that uses block sizes of 32, 64, or
128 bits and boasts a variable key size up to 2048 bits.
,A. RC2
B. RC4
C. RC5
64 or 112 - CORRECT ANSWER-Quark produces a hash value of _____bits.
A. 128
B. 64 or 112
C. 80 or 128
64 - CORRECT ANSWER-The block size used with XTEA is _____ bits.
A. 56
B. 64
C. 80
128 - CORRECT ANSWER-The key size used with XTEA is _____ bits.
A. 128
B. 256
C. 2048
Symmetric block cipher - CORRECT ANSWER-Camelia is a _____.
A. Hash Algorithm
B. Symmetric block cipher
C. Symmetric key exchange algorithm
Symmetric Block Cipher - CORRECT ANSWER-RC6 can best be described as a _____.
A. Lightweight Hash Algorithm
,B. Symmetric Stream Cipher
C. Symmetric Block Cipher
40 - CORRECT ANSWER-RC2 has a block size of 64 bits and variable key size up to 128 bits. What
is the minimum recommended key size to use when employing RC2?
A. 1
B. 40
C. 64
80; 80 - CORRECT ANSWER-The light-weight symmetric steam cipher Mickey v2 operates with a
key size of ______ bits and an initialization vector (IV) variable up to _____ bits.
A. 80; 80
B. 64; 128
C. 128; 64
Symmetric stream cipher - CORRECT ANSWER-RC4 is a(n) _____.
A. Symmetric block cipher
B. Symmetric stream cipher
C. Asymmetric algorithm
certificate signing request (CSR) - CORRECT ANSWER-An entity seeking to obtain a digital
certificate must generate and submit a _____ request to a certificate authority to request the
certificate.
A. certificate binding
B. certificate signing
C. certificate initialization
, Symmetric stream cipher - CORRECT ANSWER-ChaCha is a(n) _____.
A. Symmetric block cipher
B. Symmetric stream cipher
C. Asymmetric algorithm
Asymmetric algorithms - CORRECT ANSWER-RSA and DSA are both_____.
A. Hash algorithms
B. Symmetric stream ciphers
C. Asymmetric algorithms
Diffie-Hellman - CORRECT ANSWER-_____ provides a method for key exchange using a one-way
function.
A. A hash algorithm
B. Quark
C. Diffie-Hellman
Chaskey - CORRECT ANSWER-_____ is a Lightweight cryptography method for signing messages
(MAC).
A. Chaskey
B. Diffie-Hellman
C. Vigenere
40 - CORRECT ANSWER-WEP uses _____-bit RC4.
A. 40
B. 128
C. 256