Question 1

Which of the following is the PRIMARY purpose of a firewall in network security?

Accepted Answer

A firewall acts as a security barrier that filters network traffic and prevents unauthorized access to a system.

Question 2

What is a strong password according to cybersecurity best practices?

Accepted Answer

Strong passwords combine multiple character types (uppercase, lowercase, digits, symbols) with sufficient length to resist brute-force attacks.

Question 3

Which cyber threat involves sending fraudulent emails to trick users into revealing sensitive information?

Accepted Answer

Phishing is a social engineering attack where attackers impersonate legitimate sources via email to steal personal or financial data.

Question 4

What does SSL/TLS encryption do in online transactions?

Accepted Answer

SSL/TLS protocols encrypt data in transit, ensuring confidentiality and integrity of sensitive information exchanged over the internet.

Question 5

Which of the following is a sign that your computer may be infected with malware?

Accepted Answer

Malware infections typically manifest as system degradation, intrusive advertisements, and unauthorized changes to files or system settings.

Question 6

What is the primary function of antivirus software in cybersecurity?

Accepted Answer

Antivirus software scans systems for known malicious code patterns and removes threats to protect data and system integrity.

Question 7

Which of the following is the most common method used by cybercriminals to gain unauthorized access to user accounts?

Accepted Answer

Phishing is a social engineering attack where criminals trick users into revealing credentials or clicking malicious links to compromise accounts.

Question 8

What is the primary purpose of a firewall in cybersecurity?

Accepted Answer

A firewall acts as a barrier between trusted networks and untrusted networks, filtering data packets based on predefined security rules.

Question 9

Which practice best protects against unauthorized access to your online accounts?

Accepted Answer

Strong unique passwords combined with two-factor authentication provide multiple layers of security against account compromise.

Question 10

A malware infection on a computer system can result in which of the following consequences?

Accepted Answer

Malware can steal sensitive information, corrupt files, slow down systems, and enable unauthorized remote access to compromised computers.

Question 11

What should you do if you receive an email asking you to verify your bank account details by clicking a link?

Accepted Answer

Banks never ask for account details via email; such requests are phishing attempts and should be reported to official banking channels immediately.

Question 12

Which of the following is NOT a reliable method for protecting against cyber threats?

Accepted Answer

Opening unscanned attachments from unknown senders is extremely risky as they commonly contain malware designed to compromise systems.

Question 13

What does encryption do in the context of cybersecurity?

Accepted Answer

Encryption transforms plaintext data into ciphertext using algorithms, ensuring that only authorized parties with the correct decryption key can read the information.

Question 14

Which of the following is the PRIMARY purpose of using a strong password in cybersecurity?

Accepted Answer

A strong password acts as the first line of defense against unauthorized access by making it difficult for attackers to guess or crack login credentials.

Question 15

What is a 'phishing attack' in the context of cybersecurity?

Accepted Answer

Phishing is a social engineering attack where attackers impersonate legitimate entities to trick users into revealing passwords, credit card details, or other confidential information.

NDA Cybersecurity Basics

Cybersecurity Basics — Practice Questions