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Isaca Cybersecurity-Audit-Certificate Exam - Topic 1 Question 15 Discussion

Which of the following describes a system that enforces a boundary between two or more networks, typically forming a barrier between a secure and an open environment such as the Internet?
C) Firewall
A) Intrusion detection system (IDS)
B) Intrusion prevention system (IPS)
D) Router

Isaca Cybersecurity-Audit-Certificate Exam - Topic 1 Question 15 Discussion

Actual exam question for Isaca's Cybersecurity-Audit-Certificate exam
Question #: 15
Topic #: 1
[All Cybersecurity-Audit-Certificate Questions]

Which of the following describes a system that enforces a boundary between two or more networks, typically forming a barrier between a secure and an open environment such as the Internet?

Show Suggested Answer Hide Answer
Suggested Answer: C

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It establishes a barrier between a secure internal network and an untrusted external network, such as the internet. This system is designed to prevent unauthorized access to or from private networks and is a fundamental piece of a comprehensive security framework for any organization.


by Joana at Apr 28, 2024, 08:25 PM

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Aja
7 months ago
I’m surprised people think it’s just a firewall. There’s more to it!
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Clemencia
8 months ago
Wait, are we sure it’s not a router? Seems kinda vague.
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Micah
8 months ago
A firewall is the correct answer, no doubt about it.
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Cordelia
8 months ago
I thought it was an IPS? They prevent intrusions too!
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Krissy
8 months ago
Definitely a firewall! It’s the main barrier between networks.
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Rolland
9 months ago
I keep mixing up routers and firewalls. I feel like a firewall is the right choice, but I’m not 100% confident.
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Brittni
9 months ago
I practiced a similar question, and I think it was about how firewalls control traffic. So, I’m leaning towards C as well.
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Lawanda
9 months ago
I'm not entirely sure, but I remember something about IDS and IPS being more about monitoring and prevention rather than just creating a boundary.
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Germaine
9 months ago
I think the answer might be C, Firewall, since it specifically creates a barrier between networks.
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Yasuko
9 months ago
I'm a little confused by the wording of this question. Is it asking about a specific type of security system, or just any system that enforces a network boundary? I want to make sure I understand it fully before answering.
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Corrinne
9 months ago
Okay, I remember learning about firewalls in class. They create a barrier between a secure internal network and an open environment like the internet. That sounds like exactly what this question is asking about, so I'll select C.
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Linn
9 months ago
Hmm, I'm not totally sure about this one. I know a firewall has something to do with network security, but I'm not confident that's the right answer. I might have to think this through a bit more.
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Ronny
9 months ago
This one seems pretty straightforward. A firewall is the system that enforces a boundary between networks, so I'll go with option C.
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Lashawn
9 months ago
I've got a good handle on single sign-on, so I think I can nail this one. The login page and access token are definitely key parts of the flow.
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Mindy
9 months ago
I remember VTP and VXLAN from our last class, but I think it's definitely VNI for the VXLAN equivalent to VLAN ID.
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Jeanice
2 years ago
Firewall it is, then. It definitely forms a barrier.
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Luisa
2 years ago
Exactly. Routers manage data routing, not security boundaries.
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Junita
2 years ago
No, IPS is more about detecting and blocking threats, not just forming a boundary.
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Domitila
2 years ago
But isn't an Intrusion Prevention System also involved in security?
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Luisa
2 years ago
Yes, Firewalls create a barrier and control traffic.
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Jeanice
2 years ago
I think the answer is Firewall. It fits the description.
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