cybersecurity-common security infrastructure security

What is the primary function of a firewall in network security?

• Identifying and isolating malware within the network

• Connecting internal networks directly to the internet

• Filtering incoming and outgoing traffic based on security policies

• Increasing internet access speed

What is the main benefit of using a Virtual Private Network (VPN)?

• Encrypting data and hiding the real IP address on a public network

• Enhancing firewall functionality to prevent cyberattacks

• Increasing the processing speed of network devices

• Allowing unrestricted access to the internal network

How does an Intrusion Detection System (IDS) protect a network?

• By actively blocking unauthorized access to the network

• By detecting anomalies and alerting administrators before damage occurs

• By encrypting all network traffic to prevent eavesdropping

• By replacing the need for firewalls and VPNs

What is a honeypot used for in cybersecurity?

• To prevent network congestion by filtering excess traffic

• To serve as a decoy system that attracts and studies cyber attackers

• To provide an additional layer of authentication for users

• To block unauthorized access to private network resources

In a network security setup, what does a Demilitarized Zone (DMZ) do?

• It isolates the most secure parts of a network from the internet

• It acts as a buffer zone between public and private networks

• It encrypts all network communications for security

• It replaces the need for firewalls and IDS systems

Which of the following best describes Network Performance Monitoring (NPM)?

• A method to track and improve network performance and security

• A security tool that blocks all unauthorized network access

• A software that encrypts network communications

• A firewall extension for additional security

Why do organizations deploy honeypots in their networks?

• To speed up data transmission across the internet

• To act as a lure for attackers and analyze attack patterns

• To block all unauthorized access attempts

• To replace the need for firewalls and IDS

What is the main advantage of using a DMZ in network security?

• It allows external users to access public services while protecting internal networks

• It eliminates the need for a firewall

• It restricts access to all users except administrators

• It completely prevents any form of cyberattack

Which security technology helps analyze network congestion and optimize performance?

• Firewall

• VPN

• Network Performance Monitoring (NPM)

• IDS

Which scenario best demonstrates the use of a firewall in a business environment?

• A company installs software that encrypts all employee emails.

• An organization uses a device that blocks unauthorized access to its network.

• Employees use a VPN to connect to company resources remotely.

• A security team sets up honeypots to detect cyber threats.