MCQ Collection
Network Security MCQs
Network Security MCQs covering firewalls, attacks, protocols, and secure communication.
Choose an option to check your answer.
A.
cannot learn baselines
B.
looks for deviations from normal behavior that may indicate attacks
C.
is used only for cable testing
D.
means deleting all logs
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Correct Answer: B. looks for deviations from normal behavior that may indicate attacks
Explanation:
This is correct because Anomaly-based detection looks for deviations from normal behavior that may indicate attacks.
Choose an option to check your answer.
A.
strengthens DNS integrity
B.
only improves lookup speed safely
C.
inserts false DNS data into a resolver cache to redirect users
D.
is required by DNSSEC
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Correct Answer: A. strengthens DNS integrity
Explanation:
The misconception is "strengthens DNS integrity"; in reality, DNS cache poisoning inserts false DNS data into a resolver cache to redirect users.
Choose an option to check your answer.
A.
removes all need for routing
B.
makes decisions using packet header fields such as IP address, port, and protocol
C.
decrypts all traffic by default
D.
stores biometric logs only
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Correct Answer: B. makes decisions using packet header fields such as IP address, port, and protocol
Explanation:
Packet-filtering firewall is best described as something that makes decisions using packet header fields such as IP address, port, and protocol.
Choose an option to check your answer.
A.
assigns IP addresses
B.
is only a backup storage device
C.
monitors network or host activity and generates alerts for suspicious behavior
D.
replaces user training
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Correct Answer: C. monitors network or host activity and generates alerts for suspicious behavior
Explanation:
This is correct because IDS monitors network or host activity and generates alerts for suspicious behavior.
Choose an option to check your answer.
A.
matches only exact known signatures
B.
cannot learn baselines
C.
is used only for cable testing
D.
looks for deviations from normal behavior that may indicate attacks
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Correct Answer: A. matches only exact known signatures
Explanation:
The misconception is "matches only exact known signatures"; in reality, Anomaly-based detection looks for deviations from normal behavior that may indicate attacks.
Choose an option to check your answer.
A.
inserts false DNS data into a resolver cache to redirect users
B.
strengthens DNS integrity
C.
only improves lookup speed safely
D.
is an antivirus update
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Correct Answer: A. inserts false DNS data into a resolver cache to redirect users
Explanation:
The correct answer is that DNS cache poisoning inserts false DNS data into a resolver cache to redirect users.
Choose an option to check your answer.
A.
formats hard drives remotely
B.
allows all traffic permanently
C.
limits resource use based on identity, permissions, and policy decisions
D.
converts IPv4 to IPv6 only
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Correct Answer: C. limits resource use based on identity, permissions, and policy decisions
Explanation:
The correct answer is that Access control limits resource use based on identity, permissions, and policy decisions.
Choose an option to check your answer.
A.
gives administrator rights to all users
B.
removes role separation
C.
grants only the minimum permissions needed to perform required tasks
D.
allows unauthenticated access
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Correct Answer: C. grants only the minimum permissions needed to perform required tasks
Explanation:
The correct answer is that Least privilege grants only the minimum permissions needed to perform required tasks.
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A.
turns off all logging
B.
makes encryption unnecessary
C.
controls the number of requests or connections allowed in a given time period
D.
changes hostnames into IP addresses
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Correct Answer: C. controls the number of requests or connections allowed in a given time period
Explanation:
Rate limiting is best described as something that controls the number of requests or connections allowed in a given time period.
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A.
assigns IP addresses randomly
B.
removes audit logs
C.
verifies the identity of a user, device, or service
D.
compresses network traffic only
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Correct Answer: C. verifies the identity of a user, device, or service
Explanation:
The correct answer is that Authentication verifies the identity of a user, device, or service.
Choose an option to check your answer.
A.
removes role separation
B.
shares one account across teams
C.
grants only the minimum permissions needed to perform required tasks
D.
allows unauthenticated access
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Correct Answer: C. grants only the minimum permissions needed to perform required tasks
Explanation:
Least privilege is best described as something that grants only the minimum permissions needed to perform required tasks.
Choose an option to check your answer.
A.
turns off all logging
B.
changes hostnames into IP addresses
C.
controls the number of requests or connections allowed in a given time period
D.
makes encryption unnecessary
Show Answer
Correct Answer: C. controls the number of requests or connections allowed in a given time period
Explanation:
This is correct because Rate limiting controls the number of requests or connections allowed in a given time period.