PLTW Firewall & Malware

What is a firewall?

• A firewall is a network security system.

• A firewall is a tool used for cooking food over an open flame.

• A firewall is a type of computer virus.

• A firewall is a physical wall made of fire-resistant materials.

Why is a firewall important in network security?

• A firewall is important in network security because it acts as a barrier between a trusted internal network and untrusted external networks, filtering incoming and outgoing network traffic based on a set of security rules. It helps prevent unauthorized access, data breaches, and cyber attacks.

• A firewall is important in network security because it slows down network speed and performance.

• A firewall is important in network security because it allows unrestricted access to all network resources.

• A firewall is important in network security because it only protects against physical security threats.

What are the two main types of firewalls?

• Internal-based and External-based

• Hardware-based and Software-based

• Intrusion-based and Detection-based

• Network-based and Host-based

Explain the concept of malware.

• Malware is software that enhances computer performance.

• Malware is a type of antivirus software.

• Malware is a harmless program that improves system security.

• Malware is malicious software designed to harm or exploit computer systems.

What are some common types of malware?

• phishing

• keylogger

• malwarebytes

• viruses, worms, trojans, ransomware, spyware, adware, rootkits

How can malware infect a computer?

• By sending a text message to the computer

• Through email attachments, malicious websites, infected USB drives, software downloads, and exploiting vulnerabilities.

• Through physical contact with the computer

• Via telepathic communication with the computer

What are the potential risks of malware infections?

• Improved user experience

• Increased system performance

• Data loss, financial theft, identity theft, system damage, unauthorized access to sensitive information

• Enhanced cybersecurity measures

What are some preventive measures to protect against malware?

• Click on all email attachments and links

• Use weak passwords

• Keep software updated, use strong passwords, be cautious of email attachments and links, use reputable antivirus software, and regularly back up data.

• Never update software

How does a firewall help in blocking malware?

• A firewall blocks malware by monitoring network traffic and applying security rules.

• A firewall blocks malware by scanning physical documents

• A firewall blocks malware by sending spam emails

• A firewall blocks malware by playing music files

Explain the role of antivirus software in combating malware.

• Antivirus software slows down system performance

• Antivirus software increases the likelihood of malware infections

• Antivirus software is only effective against adware, not other types of malware

• Antivirus software detects, blocks, and removes malware to keep systems secure.