Network Security Quiz
Test your knowledge of Network Security, with this quiz.
This quiz consists of 15 questions, including multiple-choice and short-answer questions on the topic of Network Security for GCSE Computer Science.
For multiple-choice questions, choose the correct answer. Scroll down to begin the quiz.
Questions
Which of the following is an example of a threat to network security?
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What is the primary function of a firewall?
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Which of the following is a type of malware that is designed to replicate itself and spread to other computers?
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What does a VPN (Virtual Private Network) do?
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What is two-factor authentication (2FA)?
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What is the purpose of a strong password in protecting network security?
A strong password enhances network security by making it more difficult for attackers to gain access to accounts or systems. It should be complex, unique, and difficult to guess.
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What is malware and how does it affect network security?
Malware is malicious software designed to disrupt or damage a network or system. It can steal sensitive data, corrupt files, or provide unauthorised access to attackers.
Explain what a firewall does and how it helps protect a network.
A firewall monitors and controls incoming and outgoing network traffic. It helps protect a network by blocking unauthorised access and allowing only legitimate traffic.
What is phishing and how can it compromise network security?
Phishing is a type of cyber attack where attackers impersonate trustworthy entities to trick users into revealing sensitive information, such as passwords or financial details. It compromises network security by allowing attackers to gain unauthorised access to systems.
Describe what a DDoS (Distributed Denial of Service) attack is.
A DDoS attack is when multiple compromised systems are used to flood a network or website with traffic, causing it to become overwhelmed and unavailable to legitimate users.
What role does encryption play in network security?
Encryption secures data by converting it into an unreadable format that can only be decrypted with a specific key. It protects sensitive data during transmission, preventing it from being intercepted or read by unauthorised parties.
What is the difference between a Trojan and a virus in terms of how they spread and affect systems?
A Trojan is malicious software disguised as a legitimate program, often used to gain unauthorised access to a system. A virus is self-replicating and spreads to other systems by attaching itself to files or programs.
Why is it important to regularly update software and security patches in network security?
Regularly updating software and security patches is important to protect systems from vulnerabilities that could be exploited by attackers. These updates help to close security gaps and prevent potential breaches.
How does a public key infrastructure (PKI) help secure network communications?
Public key infrastructure (PKI) uses a pair of cryptographic keys (public and private) to secure communications. The public key encrypts data, while the private key decrypts it, ensuring that only the intended recipient can read the message.
What is the role of an antivirus program in network security?
An antivirus program detects, prevents, and removes malware from a system. It scans files, programs, and incoming data to identify potential threats and protect the network from infection.
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