Computer Science for IGCSE & O level - The Internet And Its Uses (Section 14)

• 1

  What is the purpose of cookies?

  คำตอบ

  (C)

  To store information about a user's browsing activity.
• 2

  What is a key characteristic of a DDoS attack?

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  (C)

  It aims to make a server unavailable.
• 3

  Which of the following is a potential risk associated with using free Wi-Fi?

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  (C)

  Data interception by hackers.
• 4

  Which of the following is a function of a cookie?

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  A

  C
• 5

  Why is it important to keep your software, including your operating system, updated?

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  (C)

  To fix security vulnerabilities and bugs.
• 6

  What is the primary purpose of a keylogger?

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  (B)

  To record everything typed on a keyboard.
• 7

  Which type of malware disguises itself as legitimate software?

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  (C)

  Trojan Horse
• 8

  What is a 'domain name'?

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  (A)

  The unique address of a website
• 9

  What does the lock icon in the address bar of a web browser indicate?

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  (A)

  That the website has a secure connection using SSL
• 10

  Which of the following is a sign of a potentially phishing email?

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  (C)

  A request for personal information.
• 11

  What is the function of a 'firewall' in the context of cyber security?

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  (B)

  To protect a network from unauthorized access.
• 12

  Which type of data is usually stored in the blockchain?

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  A

  D
• 13

  What is the main purpose of a Distributed Denial of Service (DDoS) attack?

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  (B)

  To disrupt network services
• 14

  Which part of a URL identifies the specific location of a resource on a web server?

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  (C)

  The file path
• 15

  What is the role of a web server?

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  (B)

  To store, process and deliver web pages to users.
• 16

  What is the meaning of a URL?

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  (A)

  Uniform Resource Locator (the address of a website).
• 17

  What is the function of a session cookie?

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  (C)

  To maintain a user's login session.
• 18

  In the context of the internet, what does the term 'protocol' refer to?

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  (B)

  A set of rules and standards for communication.
• 19

  Which of the following is an example of social engineering?

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  (B)

  A phishing email
• 20

  What are the potential problems identified in a phishing email?

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  A

  B

  C

  D
• 21

  What does the term 'spoofing' refer to in the context of cybersecurity?

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  (B)

  Falsifying the identity of a user or device.
• 22

  What is the purpose of HTTPS (Hypertext Transfer Protocol Secure)?

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  (B)

  To encrypt data transmitted between a web browser and a server.
• 23

  What is 'two-factor authentication' (2FA) designed to do?

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  (C)

  Add an extra layer of security to your accounts.
• 24

  What is the primary function of JavaScript in a web page?

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  (C)

  To make a web page interactive.
• 25

  Which protocol is typically used for secure communication over the internet?

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  (C)

  HTTPS
• 26

  What features do persistent cookies have?

  คำตอบ

  A

  C

  D
• 27

  In a URL, what does the 'www' typically indicate?

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  (B)

  The website's host name
• 28

  What is the primary goal of a 'ransomware' attack?

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  (C)

  To encrypt a user's data and demand payment for its release.
• 29

  Which of the following is a good security practice when using public Wi-Fi?

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  (B)

  Using a VPN
• 30

  What is 'social engineering'?

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  (B)

  Manipulating people into divulging confidential information.
• 31

  What is the main purpose of a web browser's cache?

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  (B)

  To store frequently accessed webpage data to load them more quickly.
• 32

  What can you do to protect yourself from a phishing attack?

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  (C)

  Check the sender's email address
• 33

  What is a common technique used in phishing attacks?

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  (C)

  Creating fake websites that look like real ones.
• 34

  What is the role of 'data interdiction' in the context of cyber security?

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  (D)

  All of these
• 35

  What type of software allows users to access and view web pages?

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  (B)

  A web browser
• 36

  What is the meaning of 'URL'?

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  (B)

  Universal Resource Locator
• 37

  What is the purpose of a 'phishing' attack?

  คำตอบ

  (B)

  To trick users into revealing sensitive information.
• 38

  Which of these is NOT a common feature of a password manager?

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  (D)

  Sharing passwords with anyone without restriction.
• 39

  What is the purpose of a CAPTCHA?

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  (B)

  To distinguish between human users and bots.
• 40

  What is the definition of 'spam'?

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  (B)

  Unsolicited electronic messages, often sent in bulk.
• 41

  Which of the following is a sign of possible malware infection?

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  (D)

  All of the above.
• 42

  What does the abbreviation 'ISP' stand for?

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  (C)

  Internet Service Provider.
• 43

  What does HTTP stand for?

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  (A)

  HyperText Transfer Protocol
• 44

  What is a common goal of a phishing attack?

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  (B)

  To steal user credentials.
• 45

  What does DDoS stand for?

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  (A)

  Distributed Denial-of-Service
• 46

  What is the role of a 'cookie' in web browsing?

  คำตอบ

  (C)

  To store information about a user's browsing activity.
• 47

  What type of malware is designed to secretly gather information about a user?

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  (C)

  Spyware
• 48

  Which of the following is an example of two-factor authentication?

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  (C)

  A password and a code sent to your phone.
• 49

  What is the main characteristic of a Blockchain?

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  (B)

  Tamper-proof and immutable data storage
• 50

  What is the function of a 'search engine'?

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  (C)

  To locate information on the internet based on user queries