1.
Which of the following are considered 'malware?'
Correct Answer(s)
A. Virus
D. Trojan horse
Explanation
Both viruses and Trojan horses are considered forms of malware. Viruses are malicious programs that replicate themselves and infect other files or systems, causing damage or disruption. Trojan horses, on the other hand, are deceptive programs that appear harmless but actually contain malicious code that can harm or compromise a system. Antivirus and firewall, on the other hand, are security measures designed to protect against malware, including viruses and Trojan horses. Therefore, antivirus and firewall are not considered malware themselves.
2.
Social engineering refers to:
Correct Answer
C. Hacking by using a false identity
Explanation
Social engineering refers to the act of manipulating individuals to gain unauthorized access to sensitive information or systems. This is typically done by hackers who use deception, persuasion, or impersonation techniques to trick people into revealing confidential information or granting access to restricted areas. By using a false identity, hackers can exploit human vulnerabilities and bypass security measures, making it easier for them to carry out their malicious activities.
3.
A virus can propagate by
Correct Answer
C. Not scanning a file that was emailed to you
Explanation
A virus can propagate by not scanning a file that was emailed to you because email attachments can contain malicious software that can infect your computer when opened. If you do not scan the file before opening it, you are putting your computer at risk of being infected by the virus.
4.
Antivirus software includes these brands:
Correct Answer(s)
A. Norton Antivirus
B. McAfee Antivirus
C. Kaspersky
Explanation
The given answer lists three well-known brands of antivirus software: Norton Antivirus, McAfee Antivirus, and Kaspersky. These brands are widely recognized and trusted in the industry for their ability to protect computer systems from various types of malware, viruses, and other online threats. Windows Firewall, on the other hand, is not an antivirus software but rather a built-in security feature in the Windows operating system that helps protect against unauthorized access to a computer's network.
5.
Regarding malware, a trojan horse
Correct Answer
D. Leaves open security backdoors
Explanation
A trojan horse is a type of malware that disguises itself as a legitimate program or file. Unlike other types of malware, it does not replicate itself or spread to other systems. Instead, it tricks the user into downloading or executing it, allowing it to gain unauthorized access to the system. Once inside, a trojan horse can open security backdoors, which are vulnerabilities or weaknesses in the system's defenses. This allows the attacker to gain control over the system, steal sensitive information, or carry out other malicious activities without the user's knowledge.
6.
A virus can erase files and send spam email.
Correct Answer
A. True
Explanation
A virus is a type of malicious software that can infect a computer system and cause harm. One of the ways it can do this is by erasing files, deleting important data stored on the computer. Additionally, viruses can also use the infected computer to send out spam emails, spreading the virus further and causing inconvenience to others. Therefore, the statement that a virus can erase files and send spam email is true.
7.
A virus can slow down your system.
Correct Answer
A. True
Explanation
A virus can slow down your system because it can consume a significant amount of your computer's resources, such as memory and processing power. Viruses often run in the background without the user's knowledge, performing malicious activities like replicating themselves or stealing data. These activities can cause your system to become sluggish, resulting in slower performance and longer response times. Additionally, some viruses may also interfere with the functioning of important system files and programs, further contributing to the slowdown.
8.
A computer virus can spread to humans.
Correct Answer
B. False
Explanation
A computer virus is a type of malicious software that is designed to infect and harm computer systems, not humans. Computer viruses cannot physically spread to humans as they are specifically created to target and exploit vulnerabilities in computer systems, networks, and software. While computer viruses can cause harm to individuals by compromising their personal information or causing financial loss, they cannot directly infect humans like biological viruses. Therefore, the statement that a computer virus can spread to humans is false.
9.
The ILOVEYOU worm worked by exploiting a vulnerability in
Correct Answer
B. Visual Basic script
Explanation
The ILOVEYOU worm exploited a vulnerability in Visual Basic script. This means that the worm was able to take advantage of a weakness in the Visual Basic scripting language to infect and spread on the local machine. By exploiting this vulnerability, the worm was able to cause widespread damage and spread rapidly through email attachments.