Question 1easymultiple choice
Full question →easymultiple choiceObjective-mapped
A media company runs a batch job that processes image thumbnails. The job can be restarted from checkpoints and does not have user-facing SLAs. The batch capacity can tolerate interruptions. Which EC2 purchasing option is the best cost optimization choice?
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 On-Demand Instances because interruptions are not allowed for production workloads.
On-Demand is reliable but usually more expensive than Spot for interruptible batch workloads.
B
Best answer
Use EC2 Spot Instances, accepting the possibility of interruptions and using checkpoints to resume.
Spot Instances are typically the cheapest option for workloads that can tolerate interruptions with recovery.
C
Distractor review
Purchase Reserved Instances because they provide a discount regardless of the workload timing.
Reserved Instances reduce cost, but they generally assume steady usage and are not optimized for interruptible jobs.
D
Distractor review
Buy Savings Plans because they guarantee capacity and remove the risk of interruptions entirely.
Savings Plans are for discounted steady compute, not for eliminating interruption risk on interruptible workloads.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Related practice questions
Related SAA-C03 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
SAA-C03 VPC practice questions
Practise SAA-C03 questions linked to SAA-C03 VPC.
SAA-C03 S3 lifecycle policy questions
Practise SAA-C03 questions linked to SAA-C03 S3 lifecycle policy questions.
SAA-C03 RDS Multi-AZ questions
Practise SAA-C03 questions linked to SAA-C03 RDS Multi-AZ questions.
SAA-C03 IAM policy practice questions
Practise SAA-C03 questions linked to SAA-C03 IAM policy.
SAA-C03 Route 53 failover questions
Practise SAA-C03 questions linked to SAA-C03 Route 53 failover questions.
SAA-C03 CloudFront practice questions
Practise SAA-C03 questions linked to SAA-C03 CloudFront.
SAA-C03 NAT gateway questions
Practise SAA-C03 questions linked to SAA-C03 NAT gateway questions.
SAA-C03 VPC endpoint questions
Practise SAA-C03 questions linked to SAA-C03 VPC endpoint questions.
SAA-C03 Auto Scaling practice questions
Practise SAA-C03 questions linked to SAA-C03 Auto Scaling.
SAA-C03 disaster recovery questions
Practise SAA-C03 questions linked to SAA-C03 disaster recovery questions.
SAA-C03 high availability questions
Practise SAA-C03 questions linked to SAA-C03 high availability questions.
SAA-C03 cost optimization questions
Practise SAA-C03 questions linked to SAA-C03 cost optimization questions.
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 team needs to distribute TCP traffic (not HTTP) across multiple services. The services must see the original client source IP for auditing. Which AWS load balancer is the best fit?
Question 2
A team wants to run containerized services with AWS-managed orchestration and autoscaling. They do NOT require Kubernetes compatibility. Which AWS service choice is most appropriate to meet these goals?
Question 3
A solutions architect is designing an S3 bucket for a IoT ingestion API. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure? The design must avoid adding custom operational scripts.
Question 4
A solutions architect is designing an S3 bucket for a claims portal. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?
Question 5
A team wants to delegate IAM management to developers, but must ensure developers can never grant themselves permissions beyond a specific limit. Which AWS mechanism best matches this requirement?
Question 6
A solutions architect is designing an S3 bucket for a healthcare document service. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?
FAQ
Questions learners often ask
What does this SAA-C03 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Use EC2 Spot Instances, accepting the possibility of interruptions and using checkpoints to resume. — Spot Instances are the best fit because the job is interruptible and can resume from checkpoints, meaning interruptions do not break the overall business process. Spot provides substantial discounts compared with On-Demand, which directly lowers compute cost. Reserved Instances and Savings Plans are designed to reduce cost through commitment, but they are not aimed at handling interruptions. Using On-Demand would work functionally, but it is likely more expensive than necessary. Why others are wrong: On-Demand would be a safe choice but typically costs more and does not take advantage of the workload’s ability to tolerate interruptions. Reserved Instances and Savings Plans can reduce cost, but they are commitment-based and do not provide the same benefit for interruptible batch capacity. They also do not eliminate interruption risk if the job is written to tolerate it, so Spot remains the most cost-aligned option.
What should I do if I get this SAA-C03 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
Loading comments…
Sign in to join the discussion.