Computer Networks MCQs

1018 MCQs  (Page 42 of 102)

Attempt Computer Networks Quiz
Which of the following is correct about RSA scheme in public key cryptography?
A. It is efficient for decryption
B. Lengthy keys are required for more security
C. It is not efficient for encryption
D. It is not popular
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Which of the following is an asymmetric key cryptography algorithm?
A. Des
B. Aes
C. Rc4
D. Rsa
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Which of the following doesn’t match as a property of elliptic curve cryptography?
A. Used over rsa
B. Uses elliptic curve theory
C. Key length is larger than rsa
D. Uses discrete logarithms
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Which of the following is the disadvantage of asymmetric cryptography?
A. No need of key distribution
B. Security
C. Using digital signatures
D. Used to decrypt small messages
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A sender encrypts a message using recipient’s public key in public key cryptography?
A. True
B. False
C.
D.
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Which of the following equation is correct in case of hash function, where M = input, N = hash value, H = hash function?
A. H = m(n)
B. M = h(n)
C. N = h(m)
D. N = m(h)
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What is/are the property(s) of a good hash function in case of producing outputs for set of inputs?
A. Apparently random hash values
B. Evenly distributed hash values
C. Apparently random and evenly distributed values
D. Evenly distributed but not apparently random values
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What is the core objective of the hash functions in producing hash values?
A. Integrity
B. Authenticity
C. Confidentiality
D. Security
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What is the name for hash functions that are used in security applications?
A. Secured hash function
B. Cryptographic hash function
C. Security hash function
D. Crypt-analysis hash function
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Which of the following application in which hash function is employed, refers hash value as message digest?
A. Message authentication
B. Virus detection
C. Digital signatures
D. One-way password file
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Word of the Day
15 Jul
Iterate
perform or utter repeatedly.
دہرانا، چکر

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