Amazon AWS Certified Solutions Architect - Associate SAA-C03 Practice Test 68

Question 670

A finance manager assumes S3 Storage Lens can immediately delete all costly objects after it identifies a stale prefix. Why is this incorrect?

S3 Storage Lens automatically changes every bucket Object Lock retention to recover storage whenever a growth anomaly appears.
Storage Lens provides observability and recommendations, not automatic deletion of arbitrary objects by itself.
Treat S3 Storage Lens recommendation dashboards as an automatic, authorized DeleteObjects executor for every reported cold prefix.
Enable Storage Lens metrics and assume retention policies and legal holds are automatically checked before it purges costly objects.

Explanation

Correct Answer

Apply verified lifecycle/Batch Operations or owner-approved removal actions separately after analysis.

Incorrect Answers

Storage Lens reports usage trends and metrics, not a privileged retention-override and deletion mechanism.

Storage Lens reports usage and optimization insights but does not independently delete arbitrary customer data; lifecycle or explicitly authorized operations are separate.

Storage Lens is observational. Data deletion requires explicit policy, retention validation and appropriate lifecycle or object operations.

Question 671

A team moves to gp3 but sets IOPS below the observed requirement; latency spikes although storage size is ample. What went wrong?

Increasing gp3 allocated storage automatically fixes a separate provisioned IOPS limit exactly as increasing gp2 baseline performance might.
Set only the gp3 volume Throughput MiB/s performance higher, even though CloudWatch shows individual small random operations hitting the IOPS ceiling.
Replace gp3 with a slower throughput-oriented HDD volume for latency-sensitive random database reads without testing IOPS requirements.
The configured gp3 performance entitlement is below workload IOPS demand, independently of GiB capacity.

Explanation

Correct Answer

Tune IOPS and throughput from observed metrics rather than treating gp3 as automatically unlimited.

Incorrect Answers

gp3 separates storage size from configured IOPS/throughput within service limits; the measured ceiling remains until provisioned performance changes.

Throughput and IOPS limits are distinct gp3 controls. When the measured shortage is IOPS for small random requests, raising the MiB/s ceiling alone cannot increase the permitted operation count.

HDD is a poor fit for small random I/O and cannot remedy a measured random-IOPS shortage. Adjust supported gp3 performance or appropriate provisioned-IOPS storage.

Question 672

A team chooses st1 for a boot volume containing a latency-sensitive database index. The instance cannot start with that intended boot configuration. Why?

EBS st1 is fully supported as an EC2 root boot volume and optimized for every small random I/O request.
Treat all Amazon EBS storage types as boot-volume eligible because EC2 can attach them as data disks.
Assume an st1 HDD provides SSD-class latency for small random database index reads merely because its sequential throughput is high.
Throughput-optimized HDD types such as st1 are not supported as boot volumes and are ill-suited to random database-index I/O.

Explanation

Correct Answer

Use supported SSD-backed root/database volumes rather than selecting HDD by raw capacity price alone.

Incorrect Answers

EBS throughput-optimized HDD volumes do not support boot use and are not built for low-latency random database access.

Throughput-optimized HDD st1 and cold HDD sc1 are data-volume types, not valid boot-volume substitutes for supported SSD root volumes.

st1 targets large sequential throughput, not the random I/O latency and root-boot requirements of this index/boot workload.

Question 673

An engineer deletes a 500-GiB EBS snapshot but storage usage drops by only a fraction of 500 GiB. Why?

Deleting a snapshot always deletes all of its blocks even if those blocks remain referenced by newer retained snapshots.
Reduce EBS snapshot retention to one day but keep multiple application-required snapshots that reference the same underlying unchanged blocks, assuming every retained snapshot has a separate full 500-GiB copy.
EBS snapshots share incremental blocks; blocks still required by retained snapshots remain billable.
Assume the full billable snapshot size is duplicated separately for every snapshot regardless of incremental shared-block retention.

Explanation

Correct Answer

Measure uniquely referenced snapshot blocks/retention rather than assuming one snapshot equals one full-volume storage charge.

Incorrect Answers

EBS snapshot storage is incrementally shared; data still needed by other retained snapshots remains available and billable.

EBS snapshots share incremental unchanged blocks. Retention policy may change snapshot count, but released bytes depend on unique blocks no longer needed by any surviving snapshot, not merely logical volume size.

EBS snapshot billing reflects retained unique data blocks and sharing, so neither full instant savings nor universal full duplicate billing should be assumed.

Question 674

The team changes S3 storage class but keeps 100 million tiny PUT requests per day; its request bill stays high. Why?

The S3 PUT billing unit is total GiB rather than API call count, so splitting one GiB into a million objects never changes request cost.
Storage-tier price changes do not remove the high number of billable PUT and related API operations.
Switch from S3 Standard to another storage class and assume every unchanged PUT request becomes free without reducing request count.
Move the ingestion pipeline to Multipart Upload for every 4-KiB event, expecting the same 100 million object creations to be charged as one aggregated PUT.

Explanation

Correct Answer

Address object aggregation and access patterns while checking retrieval/query costs.

Incorrect Answers

S3 request charges depend on operation volume and class; tiny-object ingestion can be dominated by per-request billing.

Storage-class pricing can affect request rates but does not remove the high-volume billable API calls. Review request counts, batching and pricing.

Multipart upload changes how a large object is transmitted in parts; it does not aggregate independent tiny objects into one request. It may increase request overhead rather than remove the existing event PUT count.

Question 675

After enabling cross-Region replication, the AWS bill rises even though the source bucket usage remains constant. Why?

S3 replication stops the recurring cost of destination copies because only the source bucket stores billable physical bytes.
Turn on S3 replication metrics without changing the replication rule and expect metrics to remove destination storage and cross-Region transfer charges.
Destination storage and inter-Region data transfer for replicated objects are separately billable.
Assume S3 replication data transfer between Regions is always free merely because both buckets are owned by the same AWS account.

Explanation

Correct Answer

Source storage amount alone does not include replica copies or replication-related traffic.

Incorrect Answers

Cross-Region replication creates separately charged destination objects and movement costs under the configured pricing.

Observability identifies replication timing and issues; it does not waive storage or transfer charges from an active cross-Region copy.

S3 Cross-Region Replication involves eligible inter-Region transfer and replication request/storage charges; same-account ownership does not make the copy free.

Question 676

An anonymous HTTP client tries to access a Requester Pays bucket and gets AccessDenied even though object read policy seems permissive. Why?

A public anonymous GET automatically bills the anonymous person under Requester Pays with no AWS payer account.
Requester Pays requests must carry a supported requester identification and payment acknowledgment; anonymous requests are not supported.
Use an unauthenticated presigned URL created by the bucket owner and assume the anonymous viewer automatically becomes the Requester Pays billed principal.
Set an S3 bucket policy Allow on GetObject and expect Requester Pays acknowledgment to be unnecessary for requests under that policy.

Explanation

Correct Answer

A public URL alone is not a billing principal that can assume requester charges.

Incorrect Answers

The requester must identify a valid chargeable AWS account and acknowledge the requester-pays arrangement for eligible operations.

Presigned URLs reflect the signing principal and require request-payer semantics compatible with the selected payer. Anonymous Requester Pays access is not created by a public browser URL.

Authorization policy and request-payer acknowledgment are separate checks. A permitted reader must still send the supported payer indication.

Question 677

DataSync is configured correctly but a 5-Mbps connection cannot finish an 80-TB import in weeks. What bottleneck is structural?

The available WAN transfer capacity sets a lower bound on elapsed transfer time despite efficient DataSync operation.
Add DataSync transfer filters and compression tuning without increasing the effective 5-Mbps network throughput, and assume the same 80-TB dataset will finish in days.
Increase AWS DataSync agent CPU and assume it can move more bytes than the physical WAN link can carry over the deadline.
Schedule multiple DataSync tasks over the same 5-Mbps WAN and assume concurrent tasks multiply the physical network throughput.

Explanation

Correct Answer

More threads cannot beat aggregate link bandwidth; calculate feasibility and consider offline transport.

Incorrect Answers

Filters or compression can reduce transmitted bytes if the real dataset permits it, but cannot overcome a fixed 5-Mbps capacity for 80 TB of effectively uncompressible required data. Measure transfer size and physical link budget.

Agent tuning cannot exceed the available 5-Mbps link throughput. The lower bound on transferring 80 TB requires better transport capacity or an offline device.

Concurrent transfers still compete for the same constrained link. A materially higher bandwidth path or currently supported large-volume transfer alternative may be required; do not assume new Snowball Edge orders are available.

Question 678

A team moves cold EFS files to Infrequent Access but access charges grow during a daily recursive file-reading job. Why?

Once EFS data transitions to Infrequent Access, the files cannot be opened again by the application regardless of IAM permissions.
Use EFS Infrequent Access and assume every file read is included free with the lower at-rest storage rate.
Infrequent Access can incur access charges and repeated reads can offset lower storage fees.
Run a daily recursive reader over all cold EFS files and expect it to leave the IA cost model unchanged from completely unread archives.

Explanation

Correct Answer

Review actual read frequency and lifecycle thresholds rather than assuming every cold-at-rest file is never accessed.

Incorrect Answers

EFS IA remains accessible; the tradeoff is storage versus access pricing, not permanent loss of file access.

EFS IA may incur metered access charges. Repeated complete scans can outweigh storage savings; evaluate the access pattern and lifecycle class.

The repeated reads create access activity and associated pricing. Exclude unnecessary scans or keep frequently read files in a suitable class.

Question 679

A team uses EFS Elastic throughput on a constant high-bandwidth streaming job and costs exceed provisioned mode. What design factor explains this?

EFS Elastic throughput provides an unlimited always-free transfer quota for sustained workload bytes after creating a file system.
Assume EFS Elastic throughput is always the cheapest billing model regardless of a constant high throughput rate.
Reduce an EFS file system’s total object count while preserving the same high bytes-per-second demand and assume that removes Elastic-throughput charges.
Elastic throughput usage-based charges can be less economical than provisioned throughput under sustained predictable high traffic.

Explanation

Correct Answer

Benchmark actual IO workload and compare modes, not simply choose the most elastic feature for every traffic shape.

Incorrect Answers

EFS throughput modes have supported limits and charge models; sustained usage is not free or automatically cheapest.

Usage-based Elastic throughput can become expensive for sustained high bandwidth; compare provisioned throughput under measured load.

Elastic-throughput cost follows read/write transfer activity, not merely file count. Match mode to throughput pattern and total demand.

Question 680

An FSx Windows share is full even though deduplication was enabled, and monitoring shows the feature never processed its file types. Why?

Deduplication savings depend on supported file characteristics, schedules and actual deduplication processing, not the checkbox alone.
FSx for Windows deduplicates every encrypted, compressed or unsupported file by a fixed 90 percent regardless of content and maintenance.
Assume enabling FSx for Windows file-system deduplication instantly reclaims all duplicate blocks without scheduling or processing any eligible files.
Increase FSx file-share ACL permissions and assume it guarantees data deduplication will run and free storage automatically.

Explanation

Correct Answer

Verify FSx feature status, workload eligibility and measured compression/deduplication before forecasting savings.

Incorrect Answers

Deduplication benefits depend on eligible data characteristics and configured processing; there is no universal guaranteed reduction.

Deduplication requires relevant configuration, eligible file data and actual scheduled optimization processing; settings alone do not prove reclaimed bytes.

Permissions do not replace deduplication processing or make ineligible file types optimizable; inspect the feature’s jobs and logs.

Pass Your Amazon AWS Certified Solutions Architect - Associate SAA-C03 Exam Easy!

Question 670

Explanation

Correct Answer

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Question 671

Explanation

Correct Answer

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Question 672

Explanation

Correct Answer

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Question 673

Explanation

Correct Answer

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Question 674

Explanation

Correct Answer

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Question 675

Explanation

Correct Answer

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Question 676

Explanation

Correct Answer

Incorrect Answers

Question 677

Explanation

Correct Answer

Incorrect Answers

Question 678

Explanation

Correct Answer

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Question 679

Explanation

Correct Answer

Incorrect Answers

Question 680

Explanation

Correct Answer

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AWS Certified Solutions Architect - Associate SAA-C03 Practice Tests