Computer Science for IGCSE & O level - The Internet And Its Uses (Section 17)
1
What is the role of an ethical hacker?
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(B)
To find vulnerabilities with authorization
2
What is the potential risk associated with a user clicking on a malicious link in a phishing email?
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(C)
The user's personal information may be stolen.
3
What are common ways cybercriminals try to gain access to your accounts?
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A
B
C
4
What does a 'VPN' do?
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(B)
Creates a secure and private connection over a public network.
5
What should you do if you believe your online account has been hacked?
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(B)
Contact customer support and change your password.
6
What does URL stand for?
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(B)
Uniform Resource Locator
7
Which of the following can help protect you from pharming attacks?
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(C)
Checking the website's URL and security certificate
8
What is the role of a search engine in relation to the World Wide Web?
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(B)
To organize and index web pages for easy searching.
9
Which of the following methods can be used to mitigate the risk of phishing attacks?
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(C)
Verifying the sender's email address
10
Which type of attack uses deceptive techniques to get users to reveal sensitive information like passwords?
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(C)
Phishing
11
What are the benefits of using a VPN?
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A
B
12
What is the best way to prevent ransomware attacks?
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(B)
Using strong, unique passwords and making regular backups.
13
What should you do if you suspect you've received a phishing email?
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(D)
Report it and delete the email
14
What is a key difference between a firewall and anti-virus software?
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(A)
Firewalls prevent unauthorized access, while anti-virus protects against malicious software.
15
What is the difference between a session cookie and a persistent cookie?
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(A)
Session cookies expire when the browser is closed, persistent cookies do not.
16
What happens when a web browser receives a cookie?
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(B)
The browser stores the cookie information.
17
Which of the following is a potential consequence of a successful phishing attack?
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A
B
C
18
What is the purpose of a digital signature?
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(B)
To verify the authenticity of a message
19
Which of the following is the best definition of 'phishing'?
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(B)
An attempt to steal sensitive information using deceptive emails or websites.
20
What is the main aim of a phishing attack?
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(A)
To steal user credentials
21
What is the function of a Domain Name System (DNS)?
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(B)
To translate domain names into IP addresses.
22
What is the primary purpose of the 'https' protocol?
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(B)
To provide a more secure connection.
23
What is one of the core benefits of using blockchain technology?
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(C)
Enhanced data security.
24
What is the main goal of a keylogger?
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(B)
To record a user's keystrokes.
25
What is the benefit of using two-factor authentication (2FA)?
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(C)
It provides an extra layer of security beyond a password.
26
Which of the following is a characteristic of a strong password?
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(C)
Using a mix of upper and lowercase letters, numbers, and symbols.
27
What kind of attack attempts to make a network resource unavailable to its users?
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(B)
DDoS
28
What can you do to improve the security of your home Wi-Fi network?
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(C)
Change the default network name and use a strong password.
29
Which of these are elements of a strong password?
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A
B
D
30
What is the term for a software or hardware device that sits between a computer and an external network, and filters all incoming and outgoing traffic?
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(B)
A firewall
31
What is the best way to prevent ransomware?
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(D)
All of the above
32
What is 'malware'?
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(D)
Malicious software designed to harm computer systems.
33
What is 'malware'?
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(C)
Software that is designed to disrupt, damage, or gain unauthorized access to a computer system.
34
How does encryption contribute to digital currency security?
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(C)
By making transactions secure and preventing unauthorized access
35
What is the main goal of a distributed denial-of-service (DDoS) attack?
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(C)
To make a website or service unavailable by flooding it with traffic.
36
In the context of online security, what is the purpose of two-step verification?
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(B)
To provide a secondary method to verify the user's identity
37
What is the purpose of multi-factor authentication?
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(C)
To require two or more methods of verification.
38
In digital currency, what is 'blockchain' primarily used for?
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(B)
To record and verify transactions in a secure and transparent manner.
39
What is the purpose of a 'firewall'?
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(B)
To protect a computer network from unauthorized access.
40
Which of the following is a potential risk when using a public computer?
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(A)
Personal information can be stolen if you don't log out or clear your browsing history.
41
What is the primary purpose of multi-factor authentication?
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(C)
To add an extra layer of security to accounts.
42
What should a user check when they suspect a phishing email?
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A
B
C
43
What is a potential risk of downloading files from untrusted websites?
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(B)
Exposure to malware.
44
What is the function of a search engine?
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(B)
To index and organize web pages to help users find information.
45
What is the function of a digital signature in a digital transaction?
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(B)
To verify the authenticity and integrity of the transaction.
46
What is the term for a type of malware designed to look like a legitimate program but actually performs malicious activities?
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(B)
A Trojan horse.
47
What technique is used to obtain confidential information by tricking someone into revealing it?
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(C)
Social engineering
48
What is a key benefit of using a password manager?
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(D)
All of the above.
49
What are some of the best practices for online security?
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A
B
C
50
What is the primary role of a firewall in cyber security?
