Unit 19

What is a fundamental security practice for a Windows PC?

• Sharing all passwords.

• Using strong, unique passwords.

• Disabling Windows Firewall.

• Installing any software from unknown sources.

Answer explanation

Using strong, unique passwords is essential for protecting your Windows PC from unauthorized access. It helps prevent breaches and keeps your personal information secure, unlike sharing passwords or disabling security features.

Which Windows feature helps protect against malware and viruses?

• System Restore

• Windows Defender/Microsoft Defender

• Disk Cleanup

• Task Manager

Answer explanation

Windows Defender, now known as Microsoft Defender, is the built-in antivirus and anti-malware solution in Windows. It actively protects your system from viruses and malware, making it the correct choice for this question.

What is the purpose of enabling User Account Control (UAC)?

• To increase network speed.

• To prevent unauthorized changes to the system.

• To encrypt data.

• To defragment the hard drive.

Answer explanation

Enabling User Account Control (UAC) is designed to prevent unauthorized changes to the system by prompting for permission or an administrator password before allowing such actions, thus enhancing system security.

What is a critical security measure regarding software updates?

• Disabling automatic updates.

• Installing updates promptly.

• Ignoring update notifications.

• Installing updates from untrusted sources.

Answer explanation

Installing updates promptly is crucial as it ensures that software vulnerabilities are addressed quickly, reducing the risk of exploitation. Disabling updates or ignoring notifications can leave systems exposed to threats.

What is the purpose of a firewall on a Windows PC?

• To manage user accounts.

• To filter and control network traffic.

• To manage network connections.

• To manage hardware devices.

Answer explanation

The purpose of a firewall on a Windows PC is to filter and control network traffic, protecting the system from unauthorized access and potential threats while allowing legitimate communication.

What is a basic security practice for a mobile device?

• Disabling screen lock.

• Using a strong PIN or biometric authentication.

• Installing apps from unknown sources.

• Connecting to any public Wi-Fi without a VPN.

Answer explanation

Using a strong PIN or biometric authentication is essential for securing a mobile device, as it helps prevent unauthorized access. Disabling screen lock and installing apps from unknown sources increase vulnerability.

What is the purpose of encrypting a mobile device?

• To increase network speed.

• To protect data if the device is lost or stolen.

• To encrypt network traffic.

• To defragment the device's storage.

Answer explanation

Encrypting a mobile device protects sensitive data from unauthorized access if the device is lost or stolen, ensuring that personal information remains secure.

What is a security risk associated with public Wi-Fi?

• Faster internet speeds.

• Data interception and eavesdropping.

• Improved battery life.

• Increased storage capacity.

Answer explanation

Public Wi-Fi networks are vulnerable to data interception and eavesdropping, allowing malicious users to capture sensitive information transmitted over the network. This makes it a significant security risk.

What is a common method for securing mobile apps?

• Disabling app permissions.

• Reviewing and limiting app permissions.

• Installing as many apps as possible.

• Ignoring app update notifications.

Answer explanation

Reviewing and limiting app permissions is crucial for securing mobile apps, as it helps control what data and features the app can access, reducing the risk of unauthorized access and potential security breaches.

What is a best practice for managing mobile device backups?

• Disabling backups.

• Regularly backing up data to a secure location.

• Backing up to unencrypted storage.

• Relying solely on local backups.

Answer explanation

Regularly backing up data to a secure location ensures that your mobile device data is protected against loss or damage. This practice helps maintain data integrity and security, unlike the other options which pose risks.