Question 1hardmultiple choice
Full question →hardmultiple choiceObjective-mapped
A company runs a critical application on a single Amazon EC2 instance with an attached Amazon EBS volume. The SysOps administrator needs to implement a disaster recovery solution that meets a Recovery Point Objective (RPO) of 15 minutes and a Recovery Time Objective (RTO) of 30 minutes. The application runs continuously and data changes frequently. Which solution should the administrator implement?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Use Amazon Data Lifecycle Manager (DLM) to take EBS snapshots every 15 minutes and automate the creation of a new AMI.
While snapshots meet the RPO, the RTO may be higher than 30 minutes due to the time needed to create an AMI and launch a new instance.
B
Distractor review
Use AWS Backup to schedule backups every 15 minutes and restore from the latest backup when needed.
AWS Backup uses snapshots, which have similar RTO challenges as DLM.
C
Best answer
Use AWS Elastic Disaster Recovery (AWS DRS) to continuously replicate the instance to a staging area in another region.
AWS DRS provides continuous replication with low RPO (seconds) and RTO (minutes), meeting the stated requirements.
D
Distractor review
Use an Auto Scaling group with a custom AMI that is updated every 15 minutes by a Lambda function.
Creating and updating AMIs every 15 minutes is not practical for frequently changing data and introduces significant overhead.
Common exam trap
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Technical deep dive
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
- OSPF neighbours must agree on key parameters.
- Router ID selection can affect neighbour relationships and LSDB output.
- OSPF cost influences the preferred path.
- A route can appear in OSPF information but not become the installed route.
TExam Day Tips
- Check area mismatch first when OSPF adjacency fails.
- Review passive interfaces when a network is advertised but no neighbour forms.
- Use show ip ospf neighbor and show ip route clues carefully.
Related practice questions
Related SOA-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A company uses Amazon CloudFront to deliver content to a global audience. The origin is an Application Load Balancer in us-east-1. The SysOps administrator wants to reduce costs by minimizing the number of requests that reach the origin server. Which action should the administrator take?
Question 2
A company runs a batch processing application on Amazon EC2 that runs for 2 hours every night. The workload can tolerate interruptions. Which EC2 purchasing option provides the lowest cost for this use case?
Question 3
A SysOps administrator needs to monitor the CPU utilization of an Amazon RDS DB instance and receive an alarm when CPU utilization exceeds 80% for 5 consecutive minutes. Which AWS service should be used to create this alarm?
Question 4
A company runs a critical web application on Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB). The application uses session stickiness (sticky sessions) to maintain user sessions. The SysOps administrator notices that when instances are replaced during a scale-in or failure event, users lose their session data. The administrator needs to preserve session data across instance failures without losing stickiness benefits. What should the administrator do?
Question 5
A company runs a production web application on a single Amazon EC2 instance. The application experiences a predictable and steady workload 24/7. The SysOps administrator wants to minimize compute costs for this instance while ensuring it remains available during the expected workload. Which EC2 purchasing option should the administrator use?
Question 6
A company has a VPC with public and private subnets. The private subnets host application servers that need to make outbound HTTPS connections to the internet. The SysOps administrator must implement a solution that provides outbound internet connectivity while preventing inbound connections from the internet. Additionally, the solution must allow the company to control which domains the application servers can access. Which solution should the administrator implement?
FAQ
Questions learners often ask
What does this SOA-C02 question test?
OSPF neighbours must agree on key parameters.
What is the correct answer to this question?
The correct answer is: Use AWS Elastic Disaster Recovery (AWS DRS) to continuously replicate the instance to a staging area in another region. — AWS Elastic Disaster Recovery (AWS DRS) provides continuous block-level replication to a staging area, enabling RPO of seconds and RTO of minutes. EBS snapshots every 15 minutes can achieve the RPO, but the time to restore a volume from a snapshot can exceed 30 minutes. AWS Backup also relies on snapshots with similar restoration latency. Auto Scaling with custom AMI cannot capture frequent data changes efficiently.
What should I do if I get this SOA-C02 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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