,1. Multiple Choice: Which of the following is considered a
best practice for securing a network?
A) Using weak encryption algorithms
B) Implementing a default-deny firewall policy
C) Disabling security logs
D) Avoiding regular software updates
Correct Answer: B) Implementing a default-deny firewall
policy
Rationale: A default-deny firewall policy ensures that only
explicitly allowed traffic can access the network, minimizing
potential vulnerabilities.
2. Fill-in-the-Blank: __________ is a protocol used to
securely connect to a remote server.
Correct Answer: SSH (Secure Shell)
Rationale: SSH is widely used for secure network
services due to its encryption capabilities, which protect
sensitive data during transmission.
3. True/False: A VLAN offers the same level of security as a
physically separate network.
Correct Answer: False
Rationale: While VLANs provide segmentation and can
help reduce security risks, they do not offer the same
robustness as physically separate networks, which are
isolated at the hardware level.
, C) SQL injection
D) Tailgating
Correct Answers: A) Phishing, B) DDoS, C) SQL injection
Rationale: These are all well-known attack vectors
targeting different aspects of network security, from social
engineering to service disruption and data breaches.
5. Multiple Choice: What is the primary purpose of a
network intrusion detection system (NIDS)?
A) To prevent users from accessing inappropriate
websites
B) To encrypt data packets
C) To monitor network traffic for suspicious activity
D) To serve as a primary firewall
Correct Answer: C) To monitor network traffic for
suspicious activity
Rationale: NIDS are deployed within a network to detect
potential threats by analyzing traffic patterns and identifying
anomalies.
6. Fill-in-the-Blank: The process of transforming readable
data into an unreadable format to prevent unauthorized
access is called __________.
Correct Answer: Encryption
Rationale: Encryption is a fundamental security measure
that protects data confidentiality by making it inaccessible to
unauthorized users.
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