Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
151
What does the term "clickbait" refer to?
Answer:
Content whose main purpose is to attract attention and encourage visitors to click on a link to a particular web page.
Clickbait headlines are often sensationalized or misleading to exploit curiosity. While not always malicious, clickbait links can sometimes lead to websites with malware or scams.
152
What is the principle of "reciprocity" in social engineering?
Answer:
The idea that if someone does you a small favor, you are more likely to do a bigger favor for them in return.
Social engineers often exploit the human tendency to want to repay a favor. They might offer a small piece of helpful information or a minor service to make the target feel indebted and more willing to comply with a later, more significant request.
153
Why do phishing websites often have a short lifespan?
Answer:
They are quickly identified and shut down by authorities or hosting providers.
Security researchers and automated systems are constantly working to identify and blacklist phishing sites. Once a site is flagged, it is often taken down quickly, so scammers have to constantly create new ones.
154
Before entering your credit card information on a shopping website, you should always check for:
Answer:
A padlock icon and "HTTPS" in the address bar.
It is crucial to ensure that any website where you enter sensitive financial information uses an encrypted HTTPS connection to protect your data from being intercepted.
155
You receive an email saying you have won a lottery that you never entered. To claim your prize, you must first pay a "processing fee." This is a classic example of:
Answer:
An advance-fee scam.
The advance-fee scam is a common type of fraud where scammers promise a large sum of money (a prize, an inheritance, etc.) but require the victim to pay a smaller fee upfront. The promised money never materializes.
156
Which of the following is a good practice for creating a strong password?
Answer:
Use a long phrase with a mix of upper and lower case letters, numbers, and symbols.
A strong password is long, complex, and unique. Using a passphrase is an excellent method for creating a password that is both memorable and difficult for others to guess or crack.
157
A website asks you to download a special "security plugin" to view its content. This is likely:
Answer:
A trick to get you to install malware.
Legitimate websites rarely, if ever, require you to download and install a separate program or plugin just to view their content. This is a common tactic used to distribute malware.
158
An email requesting bank details deceptively is an example of:
Answer:
Phishing
Phishing uses fake communications to trick users into revealing sensitive information.
159
A user receives an email that appears to be from their bank, asking them to click a link to verify their account details due to a security threat. This is an example of:
Answer:
Phishing
This is a classic example of an email phishing attempt, where a scammer uses a fake email, appearing to be from a legitimate source, to lure the recipient into providing sensitive information.
160
An online quiz that asks for personal information like your mother's maiden name or your first pet's name might be a form of:
Answer:
A social engineering attack to gather answers to common security questions.
These seemingly innocent quizzes are often a form of social engineering designed to harvest the answers to security questions that people commonly use to protect their online accounts.