100-160 Question 102
Select 3A company wants to secure remote access for its employees while ensuring that only authorized devices can connect to the network. They also need to restrict access to specific internal resources based on employee roles. Which combination of technologies would best meet these requirements?
- A
Access Control Lists (ACLs)
- B
Firewall
- C
Virtual Private Network (VPN)
- D
Network Access Control (NAC)
- E
Intrusion Detection System (IDS)
Show answer and explanation
Correct answers: A, C, D
Explanation
The combination of ACLs, VPN, and NAC addresses the company's requirements. VPN provides secure remote access, NAC ensures that only authorized and compliant devices can connect, and ACLs restrict access to internal resources based on employee roles. Firewalls and IDS, while important in network security, do not directly fulfill the specific requirements described in the scenario.
- A. Correct.
Access Control Lists (ACLs) are used to define rules for network traffic, enabling or denying access to specific resources based on IP addresses, protocols, or ports. This helps restrict access to internal resources.
- B. Incorrect.
Firewalls protect the network by filtering incoming and outgoing traffic based on predefined security rules. While important, they do not directly address device authorization or role-based access.
- C. Correct.
Virtual Private Network (VPN) ensures secure remote access by encrypting the connection between remote devices and the internal network.
- D. Correct.
Network Access Control (NAC) ensures that only authorized devices that meet security requirements (e.g., up-to-date antivirus, correct configurations) can connect to the network.
- E. Incorrect.
Intrusion Detection System (IDS) monitors network traffic for suspicious activities or known threats but does not handle secure remote access or device authorization.