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SOA-C03 Performance Optimization Question Bank (12 Questions)

Browse all 12 practice questions covering AWS Performance Optimization for the SOA-C03 certification exam. Answers are intentionally hidden on this page so you can self-test first before checking results in quiz mode.

Question 1Deployment, Provisioning & Automation
A SysOps Administrator wants to launch a group of EC2 instances for a high-performance computing (HPC) workload that requires low-latency, high-throughput network communication between instances. Which Launch Template configuration ensures the instances are placed for optimal network performance?
AConfigure the Launch Template with a `cluster` placement group, which places instances in a single Availability Zone on closely located hardware for the lowest network latency.
BConfigure the Launch Template with a `spread` placement group to distribute instances across distinct hardware.
CConfigure the Launch Template with a `partition` placement group to isolate groups of instances.
DSpecify a Dedicated Host in the Launch Template.
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Question 2Cost & Performance Optimization
A company runs 50 gp2 EBS volumes, each provisioned at 100 GiB. The team wants to improve I/O performance and reduce costs where possible. The volumes currently use approximately 500 IOPS and 200 MiB/s throughput each. Which recommendation should the administrator make?
AConvert all volumes to io2 Block Express for maximum performance
BMigrate volumes from gp2 to gp3, then configure the baseline 3,000 IOPS and 125 MiB/s throughput, scaling up only volumes that need more
CIncrease the gp2 volume size to 500 GiB each to get higher baseline IOPS
DUse instance store volumes instead of EBS for higher throughput
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Question 3Select All That ApplyCost & Performance Optimization
A company runs data-intensive analytics workloads on EC2 instances using EBS volumes. The team experiences two types of bottlenecks: some workloads are limited by random read/write operations (IOPS), while others are limited by sequential large-block data transfer speed (throughput). Which approach should the SysOps Administrator take to optimize EBS volume selection? (Select TWO.)
AFor IOPS-intensive workloads (e.g., transactional databases), select io2 Block Express volumes which support up to 256,000 IOPS per volume.
BFor throughput-intensive workloads (e.g., big data analytics with large sequential reads), select st1 (Throughput Optimized HDD) volumes which provide up to 500 MiB/s throughput at lower cost.
CUse gp2 volumes for all workloads and rely on burst credits to handle peak IOPS.
DIncrease the EC2 instance type rather than changing the volume type, as EBS performance is entirely determined by the instance.
EUse EBS Multi-Attach with io2 volumes for all workloads to double the available IOPS.
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Question 4Cost & Performance Optimization
A company needs an EBS volume that delivers consistent sub-millisecond latency and up to 256,000 IOPS for a high-performance database running on an `r6i.metal` instance. Which EBS volume type meets these performance requirements?
A`io2 Block Express`, which supports up to 256,000 IOPS, 4,000 MB/s throughput, and sub-millisecond latency on supported Nitro-based instances.
B`io1` with provisioned IOPS up to 64,000.
C`gp3` with provisioned IOPS up to 16,000.
D`st1` optimized for high-throughput sequential workloads.
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Question 5Cost & Performance Optimization
A company runs a large I/O-intensive PostgreSQL database on an EC2 instance using a 2 TB gp2 EBS volume. The database team reports inconsistent read latency during peak hours. The current volume provides a baseline of 6,000 IOPS. Which change would provide the MOST cost-effective performance improvement?
AMigrate from gp2 to gp3 and configure 10,000 IOPS and 400 MB/s throughput, since gp3 allows independent IOPS provisioning at lower cost than gp2
BMigrate to an io2 Block Express volume with 16,000 IOPS provisioned
CAdd a second gp2 volume and configure RAID 0 for increased IOPS
DIncrease the gp2 volume size to 4 TB to double the baseline IOPS to 12,000
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Question 6Select All That ApplyNetworking & Content Delivery
A company needs to establish a dedicated, private network connection between its on-premises data center and AWS with consistent network performance. The connection needs to support 10 Gbps throughput. The company also requires a backup connection in case the primary connection fails. (Select TWO.)
ASet up an AWS Direct Connect connection with a 10 Gbps dedicated port at a Direct Connect location.
BConfigure a Site-to-Site VPN connection as a backup that automatically activates if the Direct Connect connection fails.
CUse AWS Global Accelerator to optimize the network path between the data center and AWS.
DCreate a second Direct Connect connection at a different Direct Connect location for high availability.
EEstablish VPC peering connections between on-premises networks and the AWS VPC.
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Question 7Cost & Performance Optimization
A SysOps administrator wants to right-size AWS Lambda functions to reduce costs and improve performance. Which AWS service provides recommendations for Lambda function memory settings based on historical invocation data?
AAWS Cost Explorer with right-sizing recommendations
BAWS Compute Optimizer with Lambda function recommendations
CAWS Trusted Advisor performance checks
DCloudWatch Lambda Insights
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Question 8Select All That ApplyReliability & Business Continuity
A media processing workload on Amazon EFS experiences significant performance degradation during nightly batch jobs that read and write terabytes of data. The file system currently uses Bursting Throughput mode and the burst credits are depleted. Which combination of actions will resolve the throughput issue? (Select TWO.)
ASwitch the EFS file system to Elastic Throughput mode, which automatically scales throughput based on workload demand without requiring provisioned capacity.
BSwitch the EFS file system to Provisioned Throughput mode and set a fixed throughput value that meets the peak requirements of the nightly batch job.
CAdd more data to the file system to increase the baseline throughput allocation in Bursting mode.
DMove the batch job data to EFS One Zone storage class for faster throughput.
EEnable EFS Intelligent-Tiering to automatically manage throughput mode changes.
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Question 9Networking & Content Delivery
A company has an on-premises data center connected to AWS via an AWS Site-to-Site VPN. The team experiences latency inconsistency and wants to improve network performance over the VPN connection without migrating to Direct Connect. Which feature can improve VPN performance?
AEnable VPN CloudHub to create a hub-and-spoke topology.
BEnable accelerated Site-to-Site VPN, which routes traffic through the AWS Global Accelerator network instead of the public internet.
CIncrease the number of VPN tunnels from 2 to 4 by creating a second VPN connection.
DEnable Equal-Cost Multi-Path (ECMP) routing on the existing VPN tunnels.
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Question 10Networking and Content Delivery
A SysOps administrator needs to connect an on-premises data center to AWS with consistent low-latency and dedicated throughput. Which service provides this?
AAWS Site-to-Site VPN
BAWS Direct Connect
CAWS Transit Gateway
DVPC Peering
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Question 11Cost & Performance Optimization
A SysOps administrator needs to select the most cost-effective EBS volume type for a throughput-intensive big data analytics workload that involves sequential reads of large files. The workload does not require high IOPS but needs sustained throughput of 500 MB/s. Which EBS volume type should the administrator choose?
AThroughput Optimized HDD (st1), which is designed for frequently accessed, throughput-intensive workloads and supports up to 500 MB/s throughput.
BGeneral Purpose SSD (gp3) with provisioned throughput increased to 500 MB/s.
CProvisioned IOPS SSD (io2) with enough IOPS provisioned to support the required throughput.
DCold HDD (sc1), which provides the lowest-cost storage for infrequently accessed data.
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Question 12Cost and Performance Optimization
A SysOps administrator notices EBS gp2 volumes at high IOPS utilization. They want to reduce costs while maintaining performance. Which upgrade improves performance and reduces cost per IOPS?
AUpgrade to gp3 — independently configurable IOPS (up to 16,000) and throughput at lower cost per IOPS than gp2
BUpgrade to io1 for dedicated IOPS
CIncrease the gp2 volume size to get more baseline IOPS
DSwitch to st1 (throughput optimized HDD)
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Key Performance Optimization Concepts for SOA-C03

performanceoptimizationcompute optimizerright-sizerightsizingthroughputiopslatencybottleneck

SOA-C03 Performance Optimization Exam Tips

AWS Performance Optimization questions in SOA-C03 are typically scenario-based. Focus on operations, observability, incident response, and automated remediation. Priority concepts: performance, optimization, compute optimizer, right-size, rightsizing, throughput.

What SOA-C03 Expects

Anchor your answer in prioritize operational visibility and repeatable runbook-ready automation.
Performance Optimization scenarios for SOA-C03 are frequently mapped to Domain 1 (22%), so read the objective carefully before picking controls or architecture.
Expect multi-topic scenarios where Performance Optimization interacts with IAM, networking, storage, or observability patterns rather than appearing as an isolated question.
When two options are both technically valid, prefer the choice that best aligns with the exam's operational scope (Associate) and vendor best practices.

High-Value Performance Optimization Concepts

Know the core Performance Optimization building blocks cold: performance, optimization, compute optimizer, right-size.
Review the edge-case features and limits for rightsizing, throughput; these details are commonly used to differentiate answer choices.
Practice service-integration reasoning: how Performance Optimization pairs with CloudWatch, EC2, Auto Scaling, EBS in real deployment patterns.
For SOA-C03, explain why the chosen Performance Optimization design meets reliability, security, and cost expectations better than the alternatives.

Common SOA-C03 Traps

Watch for answers that deploy quickly but are hard to monitor or recover.
Questions in Monitoring, Logging, Analysis, Remediation, and Performance Optimization often include distractors that look correct for Performance Optimization but violate least-privilege, durability, or availability requirements.
Avoid picking options purely by feature name; validate data path, failure handling, and governance impact before answering.
If the prompt hints at automation or repeatability, eliminate manual-only operational answers first.

Fast Review Checklist

Can you compare at least two Performance Optimization implementation paths and justify which one best fits the scenario?
Can you map the chosen answer back to Monitoring, Logging, Analysis, Remediation, and Performance Optimization (22%) outcomes for SOA-C03?
Can you explain security and access boundaries for Performance Optimization without relying on default-open assumptions?
Can you describe how Performance Optimization integrates with CloudWatch and EC2 during failure, scaling, and monitoring events?

Exam Domains Covering Performance Optimization

Domain 1Monitoring, Logging, Analysis, Remediation, and Performance Optimization22%

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