Discuss Amazon CLF-C02 Exam Topic 1 Question 55

What are the characteristics of Availability Zones? (Select TWO.)

AAll Availability Zones in an AWS Region are interconnected with high-bandwidth, low-latency networking

BAvailability Zones are physically separated by a minimum of distance of 150 km (100 miles).

CAll traffic between Availability Zones is encrypted.

DAvailability Zones within an AWS Region share redundant power, networking, and connectivity.

EEvery Availability Zone contains a single data center.

Suggested Answer: A, D

Availability Zones are physically separate locations within an AWS Region that are engineered to be isolated from failures. Each Availability Zone has independent power, cooling, and physical security, and is connected to other Availability Zones in the same Region by a low-latency network. Therefore, the correct answers are A and D. You can learn more about Availability Zones and their characteristics

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15 comments · newest first

Linda Scott 8 hours ago

B makes the most sense here because the minimum distance between AZs isn’t specified in the context, making distance a red herring.

Takashi Tanaka 16 days ago

I would pick B because the minimum distance of 150 km isn’t specified in the context, and the tricky part is interpreting AZ isolation.

Pablo Rossi 22 hours ago

↳ replying to Takashi Tanaka

That makes sense because the AZs are connected by a low-latency network, reinforcing their separation yet enabling fast cross-zone communication.

Timothy 3 months ago

I’m leaning towards A and D. Redundant power is crucial too!

Twila 3 months ago

I agree, A and B make sense. Distance matters for reliability.

Krystal 4 months ago

I think A and B are correct. High-bandwidth is key!

Doyle 4 months ago

Not sure about B, seems like a lot of distance for just a zone.

Oneida 4 months ago

Totally agree, A and B are the key ones!

Lorrie 4 months ago

Wait, are they really 150 km apart? That's surprising!

Elliott 6 months ago

I thought they shared power and networking? Isn't that D?

Maile 6 months ago

A and B are spot on!

Markus 7 months ago

I’m a bit confused about C; I thought traffic between zones was secure, but I can’t recall if it’s specifically encrypted.

Xuan 7 months ago

I practiced a question similar to this, and I think D is definitely one of the characteristics since they share resources.

Cordelia 7 months ago

I'm not entirely sure, but I feel like B is correct because they have to be physically separated for redundancy, right?

Francine 7 months ago

I think I remember that all Availability Zones are interconnected, so A might be one of the answers.

Amazon CLF-C02 Exam - Topic 1 Question 55 Discussion