MCQ Collection
Network Security MCQs
Network Security MCQs covering firewalls, attacks, protocols, and secure communication.
Choose an option to check your answer.
A.
identifies a specific service or application endpoint on a host
B.
stores a biometric template
C.
defines an Ethernet cable length
D.
replaces an IP address entirely
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Correct Answer: A. identifies a specific service or application endpoint on a host
Explanation:
The correct answer is that Port number identifies a specific service or application endpoint on a host.
Choose an option to check your answer.
A.
combines the likelihood of a threat exploiting a vulnerability with the resulting impact
B.
is never affected by controls
C.
is only the number of routers in a network
D.
is identical to bandwidth
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Correct Answer: A. combines the likelihood of a threat exploiting a vulnerability with the resulting impact
Explanation:
Risk is best described as something that combines the likelihood of a threat exploiting a vulnerability with the resulting impact.
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A.
does not support ports
B.
sends only broadcast frames
C.
provides reliable, connection-oriented transport using acknowledgments and sequencing
D.
is used only for encrypting disk files
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Correct Answer: C. provides reliable, connection-oriented transport using acknowledgments and sequencing
Explanation:
The correct answer is that TCP provides reliable, connection-oriented transport using acknowledgments and sequencing.
Choose an option to check your answer.
A.
contains the payload checksum only
B.
identifies a specific service or application endpoint on a host
C.
replaces an IP address entirely
D.
defines an Ethernet cable length
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Correct Answer: B. identifies a specific service or application endpoint on a host
Explanation:
Port number is best described as something that identifies a specific service or application endpoint on a host.
Choose an option to check your answer.
A.
is never affected by controls
B.
is only the number of routers in a network
C.
combines the likelihood of a threat exploiting a vulnerability with the resulting impact
D.
is identical to bandwidth
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Correct Answer: C. combines the likelihood of a threat exploiting a vulnerability with the resulting impact
Explanation:
This is correct because Risk combines the likelihood of a threat exploiting a vulnerability with the resulting impact.
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A.
ensures that network services remain accessible to authorized users when needed
B.
means no monitoring is allowed
C.
means all data is encrypted with one key
D.
means users share one password
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Correct Answer: A. ensures that network services remain accessible to authorized users when needed
Explanation:
The correct answer is that Availability in networking ensures that network services remain accessible to authorized users when needed.
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A.
stores passwords in plain text
B.
protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption
C.
removes the need for authentication
D.
focuses only on graphic interface design
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Correct Answer: B. protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption
Explanation:
The correct answer is that Network security protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption.
Choose an option to check your answer.
A.
ensures that network services remain accessible to authorized users when needed
B.
means no monitoring is allowed
C.
means packets are never dropped by design
D.
means users share one password
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Correct Answer: A. ensures that network services remain accessible to authorized users when needed
Explanation:
Availability in networking is best described as something that ensures that network services remain accessible to authorized users when needed.
Choose an option to check your answer.
A.
replaces all network protocols
B.
stores passwords in plain text
C.
focuses only on graphic interface design
D.
protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption
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Correct Answer: D. protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption
Explanation:
Network security is best described as something that protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption.
Choose an option to check your answer.
A.
means users share one password
B.
ensures that network services remain accessible to authorized users when needed
C.
means no monitoring is allowed
D.
means packets are never dropped by design
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Correct Answer: B. ensures that network services remain accessible to authorized users when needed
Explanation:
This is correct because Availability in networking ensures that network services remain accessible to authorized users when needed.
Choose an option to check your answer.
A.
focuses only on graphic interface design
B.
replaces all network protocols
C.
protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption
D.
stores passwords in plain text
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Correct Answer: C. protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption
Explanation:
This is correct because Network security protects network infrastructure, traffic, and services from unauthorized access, misuse, and disruption.
Choose an option to check your answer.
A.
ensures that network services remain accessible to authorized users when needed
B.
means users share one password
C.
means no monitoring is allowed
D.
means all data is encrypted with one key
Show Answer
Correct Answer: D. means all data is encrypted with one key
Explanation:
The misconception is "means all data is encrypted with one key"; in reality, Availability in networking ensures that network services remain accessible to authorized users when needed.
