Discuss EC-Council ICS-SCADA Exam Topic 7 Question 45

A Virtual Private Network (VPN) requires how many Security Associations?

Suggested Answer: D

A Virtual Private Network (VPN) typically requires two Security Associations (SAs) for a secure communication session. One SA is used for inbound traffic, and the other for outbound traffic.

In the context of IPsec, which is often used to secure VPN connections, these two SAs facilitate the bidirectional secure exchange of packets in a VPN tunnel.

Each SA uniquely defines how traffic should be securely processed, including the encryption and authentication mechanisms. This ensures that data sent in one direction is handled independently from data sent in the opposite direction, maintaining the integrity and confidentiality of both communication streams.

Reference

'Understanding IPSec VPNs,' by Cisco Systems.

'IPsec Security Associations,' RFC 4301, Security Architecture for the Internet Protocol.

Get Premium ICS-SCADA Questions as Interactive Web-Based Practice Test or PDF Real Exam Format Detailed Explanations Instant Access Get Your Practice Test

12 comments · newest first

Arminda 2 months ago

I’m leaning towards D) 2. Simplicity can be effective too.

Lacey 2 months ago

I feel like it's A) 5. More associations mean better security, right?

Tonja 2 months ago

I think it's B) 4. Seems logical for secure connections.

Alona 2 months ago

Yeah, 2 makes sense for the tunnel and the control plane.

Quentin 2 months ago

Are you sure it's not 3? Seems off.

Colene 3 months ago

Definitely 2, that's standard.

Justa 3 months ago

I thought it was 4!

Benedict 3 months ago

A VPN typically requires 2 Security Associations.

Krystina 3 months ago

I thought it was 3, but now I'm second-guessing myself. I should have reviewed those practice questions more thoroughly!

Tina 3 months ago

If I recall correctly, it might be 2 for the basic setup, but I feel like there could be more depending on the configuration.

Lynsey 3 months ago

I remember practicing a question about Security Associations, and I think it was around 4, but that might have been for a different protocol.

Joanna 4 months ago

I think a VPN typically needs at least two Security Associations, one for inbound and one for outbound traffic, but I'm not entirely sure.

EC-Council ICS-SCADA Exam - Topic 7 Question 45 Discussion