Computer Science for IGCSE & O level - The Internet And Its Uses (Section 11)
1
What is the purpose of anti-virus software?
Απάντηση(B)
To detect and remove malicious software.
2
Which of the following is a type of attack involving the use of deceptive emails?
3
What should you do if you find a suspicious device connected to your network?
4
What is the purpose of setting up a firewall?
Απάντηση(B)
To filter network traffic based on predefined rules.
5
What term is used to describe a type of attack where an attacker attempts to flood a network or server with traffic to make it unavailable?
6
What does 'wardriving' involve?
Απάντηση(D)
Searching for unsecured Wi-Fi networks.
7
What is 'social engineering' in the context of cyber security?
Απάντηση(C)
Manipulating people to reveal sensitive information.
8
What is the purpose of a web browser's cache?
Απάντηση(A)
To store temporary files to speed up website loading.
9
What should you do to protect your computer if you receive a suspicious email with an attachment?
Απάντηση(D)
Scan the attachment with antivirus software before opening it.
10
What does the term 'pharming' refer to?
Απάντηση(B)
A malicious redirect of a user's browser to a fake website.
11
Απάντηση(B)
Sending deceptive emails to trick people into revealing sensitive information.
12
What does a URL use to identify a web page?
13
What is the difference between the Internet and the World Wide Web (WWW)?
Απάντηση(B)
The Internet is the hardware and the WWW is the software that runs on it.
14
What is the purpose of anti-malware software?
Απάντηση(A)
To identify and remove spyware.
15
Which of the following are types of cyber security threats?
16
Which of these are potential benefits of using a proxy server?
17
What is the meaning of the term 'URL'?
18
Which of the following is the most significant risk when you click on a phishing link?
Απάντηση(C)
Your personal information may be stolen.
19
What is the primary objective of 'anti-spyware' software?
Απάντηση(B)
To remove or mitigate the threat of malware.
20
Which of the following could be used to identify a phishing email?
21
In a URL, what does the part before the domain name (e.g., http://) represent?
22
Which of the following actions can help prevent malware infections?
23
Which of the following is NOT a type of malware?
24
What steps should you take to protect your online accounts?
25
What is the purpose of a digital certificate?
Απάντηση(B)
To verify the identity of a website or user.
26
Which of the following is an example of social engineering?
27
Απάντηση(B)
An address for accessing web resources.
28
What is the primary function of a proxy server?
Απάντηση(B)
To act as an intermediary between a client and a server.
29
What type of internet connection is usually considered most secure?
30
What does the term 'malware' refer to?
Απάντηση(B)
Malicious software designed to harm computer systems.
31
What is a common characteristic of a computer infected with a virus?
Απάντηση(B)
Slow computer performance
32
What is the main function of a web browser?
Απάντηση(B)
To access and display web pages.
33
What is the function of an ISP (Internet Service Provider)?
Απάντηση(B)
To provide internet access to users.
34
What is a potential consequence of clicking on a suspicious link?
Απάντηση(B)
You may download malware.
35
Why is it important to keep your software updated?
Απάντηση(B)
To fix bugs and security vulnerabilities.
36
What are the potential risks associated with using a weak password?
37
Which of the following statements are correct regarding firewalls?
Απάντηση(B)
Firewalls allow a user to set rules for network traffic.
38
What is the primary purpose of the internet?
Απάντηση(B)
To facilitate communication and information sharing globally.
39
Which of the following techniques can be used to carry out data interception on a Wi-Fi network?
40
What is the common feature of blockchain?
41
Which of the following are important for a strong password?
42
What security measures can you take while using public Wi-Fi?
43
What is the purpose of a 'CAPTCHA'?
Απάντηση(B)
To distinguish between human users and automated bots.
44
Which part of a URL comes after the domain name?
45
Which of these is a characteristic of a worm?
Απάντηση(B)
Replicates itself without a host
46
What are the benefits of blockchain technology?
47
What is the main goal of a denial-of-service (DoS) attack?
Απάντηση(B)
To make a website or service unavailable.
48
Which component of a URL is usually followed by the domain name?
Απάντηση(C)
The protocol (e.g., http or https)
49
What is the primary function of a 'VPN' (Virtual Private Network)?
Απάντηση(B)
To encrypt your internet traffic and mask your IP address.
50
When encountering a suspicious email, which action is the MOST important?
Απάντηση(C)
Verify the sender and the email's content for legitimacy.
