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CV0-004 · topic practice

Operations and Support practice questions

Practise CompTIA Cloud+ CV0-004 Operations and Support practice questions — original exam-style scenarios with answer choices, explanations, and analysis of common mistakes.

Courseiva uses original exam-style practice questions designed for learning and revision. The goal is to understand the concepts, recognise exam patterns, and improve through explanations — not memorise copied exam dumps.

Reviewed byJohnson Ajibi· MSc IT Security
20 questionsDomain: Operations and Support
Practice 10 questionsBrowse domain →

What the exam tests

What to know about Operations and Support

Operations and Support questions test whether you can apply the concept in context, not just recognise a definition.

How the topic appears in realistic exam-style scenarios.

Which detail in the question changes the correct answer.

How to eliminate plausible but wrong options.

How to connect the question back to the wider exam objective.

Watch out for

Common Operations and Support exam traps

  • ▸Answering from memory before reading the full scenario.
  • ▸Missing a constraint such as cost, availability, security, scope or command context.
  • ▸Choosing a broad answer when the question asks for the most specific fix.
  • ▸Ignoring why the wrong options are tempting.

Practice set

Operations and Support questions

20 questions · select your answer, then reveal the explanation

Question 1mediummultiple choice
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A cloud administrator notices that a virtual machine running a critical application is using 95% CPU consistently. The application is single-threaded and performance is degraded. Which action should the administrator take to resolve the issue?

Question 2easymultiple choice
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A cloud engineer needs to ensure that a web application can scale out automatically during traffic spikes. Which design best practice should be implemented?

Question 3hardmultiple choice
Read the full VPN explanation →

A company uses a hybrid cloud model with an on-premises data center and a public cloud. The network team reports that traffic between the cloud and on-premises is experiencing high latency and packet loss. The cloud administrator verifies that the VPN connection is up. What is the most likely cause?

Question 4mediummulti select
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Which TWO metrics should be monitored to determine if a cloud database is experiencing a memory bottleneck?

Question 5hardmulti select
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A cloud administrator is troubleshooting an application that fails to connect to a database. The application and database are in the same VPC. Which THREE steps should the administrator take to diagnose the issue?

Question 6easymulti select
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A cloud administrator is planning a migration of on-premises workloads to the cloud. Which TWO factors should be considered when selecting the appropriate cloud service model (IaaS, PaaS, SaaS)?

Question 7hardmulti select
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A company experienced a security breach where an attacker gained access to an S3 bucket containing sensitive data. The investigation reveals that the bucket policy allowed public access. Which THREE measures should be implemented to prevent future occurrences?

Question 8mediummultiple choice
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An organization uses a cloud-based load balancer to distribute traffic to a web application across multiple availability zones. Users report that the application is intermittently unavailable. The cloud administrator finds that the load balancer health checks are failing on instances in one availability zone. What is the most likely cause?

Question 9easymultiple choice
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A cloud administrator needs to automate the patching of operating systems on a fleet of EC2 instances. Which AWS service should be used?

Question 10hardmultiple choice
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A company runs a containerized application on a Kubernetes cluster. The application logs indicate occasional 'CrashLoopBackOff' errors. The developer says the application works fine locally. What is the most likely cause in the cloud environment?

Question 11mediummultiple choice
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A cloud engineer is designing a disaster recovery plan for a critical application. The application requires a Recovery Time Objective (RTO) of 15 minutes and a Recovery Point Objective (RPO) of 1 hour. Which replication strategy should be used?

Question 12hardmultiple choice
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A cloud administrator runs the `iostat` command on a Linux VM experiencing slow performance. Based on the exhibit, what is the most likely bottleneck?

Exhibit

Refer to the exhibit.
```
$ iostat -x 1 3
avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           5.2     0.0    2.1   45.3      0.0   47.4

Device:   rrqm/s   wrqm/s   r/s   w/s   rkB/s   wkB/s avgrq-sz avgqu-sz   await r_await w_await  svctm  %util
xvda       0.00     0.00  85.0  15.0  3400.0  600.0    80.0     4.5    45.0   40.0   70.0   10.0  90.0%
```
Question 13easymultiple choice
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A user reports being unable to upload files to an S3 bucket named 'my-bucket'. The IAM policy attached to the user is shown in the exhibit. What is the most likely reason for the failure?

Exhibit

Refer to the exhibit.
```json
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "s3:PutObject",
      "Resource": "arn:aws:s3:::my-bucket/*"
    }
  ]
}
```
Question 14mediummultiple choice
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A cloud administrator launches a new EC2 instance with a userdata script that installs a web server. The instance launches but the web server is not running. The administrator checks the cloud-init logs and sees the warning shown in the exhibit. What is the most likely cause?

Exhibit

Refer to the exhibit.
```
[cloud-init]
Output from: /var/log/cloud-init-output.log
...
2024-01-15 10:32:45,123 - util.py[WARNING]: Running module <module-name> (<module-path>) failed
...
```
Question 15hardmultiple choice
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A company operates a multi-tier web application on AWS. The web tier runs on EC2 instances behind an Application Load Balancer. The application tier runs on EC2 instances that connect to an RDS MySQL database. Recently, users have reported slow page load times. The cloud administrator investigates and finds the following: CPU utilization on web and app tier instances is below 50%, memory usage is normal, but the RDS instance's CPU utilization is consistently above 80% and the number of database connections is at the maximum. The administrator also notices that the application code opens a new database connection for each HTTP request and does not close them properly. Which action should the administrator take to resolve the performance issue?

Question 16mediummultiple choice
Study the full ACL explanation →

A cloud administrator manages a hybrid cloud environment where on-premises servers connect to a VPC in AWS via a VPN connection. The on-premises network uses IP range 10.0.0.0/16. The VPC uses 172.16.0.0/16. The VPN is established and the tunnel status is UP. However, on-premises hosts cannot ping EC2 instances in the VPC. The administrator logs into an EC2 instance and can ping the on-premises VPN gateway IP. The security groups and network ACLs are configured to allow all traffic. The route tables in the VPC have a route to the on-premises network via the virtual private gateway. The on-premises firewall logs show that packets from the VPC are being dropped. What is the most likely cause?

Question 17mediummultiple choice
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A cloud administrator notices that a virtual machine is running out of memory and causing performance issues. The VM is part of a production web application. Which of the following actions should the administrator take FIRST to resolve the issue without impacting availability?

Question 18hardmultiple choice
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A cloud administrator is troubleshooting an issue where users from the 192.0.2.0/24 network cannot access objects in an S3 bucket. The bucket policy is shown in the exhibit. What is the most likely cause of the issue?

Exhibit

Refer to the exhibit.

```
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": "s3:GetObject",
      "Resource": "arn:aws:s3:::example-bucket/*",
      "Condition": {
        "IpAddress": {
          "aws:SourceIp": "192.0.2.0/24"
        }
      }
    }
  ]
}
```
Question 19easymulti select
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A cloud engineer is deploying a new application that requires high availability. The solution must include automated failover and load balancing. Which TWO of the following should the engineer implement?

Question 20easymultiple choice
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A cloud engineer notices that a virtual machine (VM) in a public cloud environment is consistently running at 90% CPU during business hours. The VM hosts a customer-facing web application. Which of the following is the BEST initial troubleshooting step?

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Frequently asked questions

What does the CV0-004 exam test about Operations and Support?
Operations and Support questions test whether you can apply the concept in context, not just recognise a definition.
How should I use these practice questions?
Select your answer before revealing the explanation. Then read why each option is right or wrong — this active recall approach builds retention far faster than re-reading notes.
Can I practise just Operations and Support questions in a focused session?
Yes — the session launcher on this page draws every question from the Operations and Support domain. Use a 10-question session first to gauge your baseline, then move to 20 or 30 once the weak spots are clear.
Where can I practise other CV0-004 topics?
Use the topic links above to move to related areas, or go back to the CV0-004 question bank to see all topics.
Are these real exam questions or dumps?
These are original practice questions written to test the same concepts the CV0-004 exam covers. They are not copied from any real exam or dump site.