The answer is deploying instances in a placement group within the same Availability Zone. This configuration achieves the lowest latency between compute instances by ensuring they are physically co-located, often on the same rack or cluster, which minimizes network hops and allows for non-blocking, high-bandwidth communication over private IP addresses. On the CompTIA Cloud+ CV0-004 exam, this tests your understanding of how cloud providers optimize for latency-sensitive workloads; a common trap is assuming that spreading instances across multiple zones improves redundancy, but that actually increases latency due to additional network infrastructure. Remember the memory tip: “Same zone, same rack—latency won’t come back.”
CV0-004 Deployment Practice Question
This CV0-004 practice question tests your understanding of deployment. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A cloud administrator is deploying a critical application that requires the lowest possible latency between compute instances. The instances will be running in a private subnet and must communicate with each other using their private IP addresses. Which of the following deployment configurations would best meet these requirements?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Deploy instances in a placement group within the same Availability Zone.
Deploying instances in a placement group within the same Availability Zone ensures they are physically close together, often in the same rack or cluster, which minimizes network hops and achieves the lowest possible latency. This configuration is ideal for latency-sensitive applications because it leverages non-blocking, high-bandwidth inter-instance communication without traversing additional network infrastructure.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Deploy instances in different Availability Zones within the same region.
Why it's wrong here
Different AZs introduce higher latency.
✗
Deploy instances in the same subnet behind a NAT gateway.
Why it's wrong here
NATgateway adds latency and is unnecessary for private subnet communication.
✗
Deploy instances in different regions and use inter-region peering.
Why it's wrong here
Inter-region latency is high.
✓
Deploy instances in a placement group within the same Availability Zone.
Why this is correct
Placement groups ensure low latency and high throughput.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume distributing instances across Availability Zones improves performance due to high availability, but for latency-sensitive workloads, the physical proximity of a placement group within a single AZ is the correct choice, not fault tolerance.
Detailed technical explanation
How to think about this question
Placement groups in AWS, for example, use a cluster placement group that logically groups instances within a single Availability Zone to achieve single-digit millisecond latency and up to 10 Gbps of network throughput between instances. This is achieved by ensuring instances are co-located in the same high-bandwidth, low-latency segment of the network, often within the same rack, which minimizes the number of switches and cables the traffic must traverse. In contrast, cross-AZ traffic must pass through multiple network devices and potentially over longer physical distances, introducing measurable latency.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Deploy instances in a placement group within the same Availability Zone. — Deploying instances in a placement group within the same Availability Zone ensures they are physically close together, often in the same rack or cluster, which minimizes network hops and achieves the lowest possible latency. This configuration is ideal for latency-sensitive applications because it leverages non-blocking, high-bandwidth inter-instance communication without traversing additional network infrastructure.
What should I do if I get this CV0-004 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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