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ICT 287 Mock Exam Questions and Correct Answers 100% Verified; Murdoch University
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ICT 287 Mock Exam Questions and Correct Answers 100% Verified; Murdoch University ICT 287 Mock Exam
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ICT 287 Mock Exam Questions and Correct Answers100% Verified; Murdoch University
Question 1
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Security Models
What is the Bell-LaPadula (BLP) model? Name and describe its 3 properties. Also, explain
which dimension of security it does focus on from the CIA dimensions.
BLP model is a mathematical description of mandatory access control. It focuses on
confidentiality and its secure system revolves around its three properties of discretionary
security which uses a mathematical calculation to specify the access level, simple security
property, that states that a subject can not access another subject that is of a higher level
security level, and star property, which states that a subject at a higher security level can not
write to a subject of a lower security level.
Question 2
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Cryptographic pseudo-random number generators differ from regular random number
generators by:
Select one:
a. Taking external input such as mouse cursor movements to increase entropy
b. Encrypting the numbers using private key cryptography
c. Generating multiple numbers and selecting one at random
d. Signing the random numbers after generation
e. Salting the random numbers after generation
,Feedback
Your answer is incorrect.
The correct answer is: Taking external input such as mouse cursor movements to increase
entropy
Question 3
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Describe how a public-key infrastructure (PKI) works to help Alice and Bob exchange a
message over an untrusted communication medium.
PKI binds public keys with the identities of their owners through a process of registration and
issue of certificates by a certificate authority and implementing data encryption for the
message. Only holders of the authentic and authorised keys are able to read and decrypt the
message sent.
Question 4
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Netcat is used for
Select one:
a. generating network catalogues.
b. reading and writing to network connections.
c. sending encrypted messages.
d. scanning a range of ports.
, Feedback
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The correct answer is: reading and writing to network connections.
Question 5
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Which of the cryptographic primitives can be used to encrypt and decrypt data using the same
key?
Select one:
a. Public key cryptography
b. Cryptographically secure PRNG
c. Digital signatures
d. Private key cryptography
e. One-way hashing functions
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The correct answer is: Private key cryptography
Question 6
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