Learn what an AWS Availability Zone (AZ) consists of, its architecture, and how it ensures high availability and fault tolerance in the AWS Cloud Practitioner CLF-C02 certification exam.
Table of Contents
Question
An Availability Zone consists of:
A. One or more data centers in a single location
B. Two or more data centers in multiple locations
C. One or more physical hosts in a single data center
D. Two or more physical hosts in multiple data centers
Answer
A. One or more data centers in a single location
Explanation
An Availability Zone in AWS consists of one or more isolated data centers within a region, each with independent power, cooling, and physical security.
An Availability Zone (AZ) in AWS is a distinct, isolated location within an AWS Region that consists of one or more data centers. These data centers are designed to provide high availability, fault tolerance, and low-latency connectivity with other AZs in the same region. Here’s why Option A is correct and the others are not:
Why Option A is Correct
- Each AZ contains one or more physical data centers located in a single geographic area.
- These data centers have independent power, cooling, and networking to ensure resilience against failures.
- AZs are interconnected with high-bandwidth, low-latency links to enable redundancy and failover capabilities across the region.
Why Other Options Are Incorrect
Option B: AZs do not span multiple locations; they are confined to a single geographic area within a region. Multiple AZs within a region provide fault tolerance but are individually isolated.
Option C: An AZ is not limited to just physical hosts; it includes entire data centers with robust infrastructure for scalability and reliability.
Option D: While AZs may contain multiple physical hosts, they do not span multiple data centers in different locations. Each AZ operates independently within its defined area.
Key Features of AWS Availability Zones
- Isolation: Each AZ is insulated from failures in other AZs within the same region.
- Redundancy: Designed with redundant power, networking, and cooling systems to minimize downtime.
- Low Latency: High-speed fiber connections between AZs ensure seamless replication and failover during outages.
- Scalability: Customers can deploy applications across multiple AZs to enhance availability and disaster recovery.
Understanding this concept is critical for passing the AWS Certified Cloud Practitioner CLF-C02 exam and effectively architecting reliable cloud solutions.
Amazon AWS Certified Cloud Practitioner CLF-C02 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Amazon AWS Certified Cloud Practitioner CLF-C02 exam and earn Amazon AWS Certified Cloud Practitioner CLF-C02 certification.