Amazon AWS Certified Solutions Architect - Associate SAA-C03 Practice Test 65

Question 640

S3 objects for a new partition are present, but Athena queries filtered by that partition return zero rows. The Glue table has no entry for it. Why?

Athena automatically knows every newly written S3 partition if the data files share an S3 bucket, regardless of table partition configuration.
Increase the Athena query timeout without adding the new partition to the catalog or configuring valid partition projection.
Create additional S3 object versions at the new prefix and assume Athena will infer missing table partition values from version history.
The catalog partition metadata is stale or incomplete, so partition pruning cannot address the new S3 prefix.

Explanation

Correct Answer

Update partitions with a crawler, partition projection or explicit catalog operations as appropriate.

Incorrect Answers

New prefixes require discoverable registered partitions or an appropriate projection strategy; S3 co-location alone does not update the query planner.

More execution time cannot make a missing table partition visible to Athena; discover or project the actual partition metadata.

S3 versioning protects object revisions, not the catalog partitions required by a partitioned Athena table.

Question 641

A document library has 10 TB of files read weekly by employees; the finance team proposes S3 Standard-IA instead of Standard. Which cost comparison is required?

Choose Standard-IA solely because the stored GiB-month rate is lower, ignoring all request and retrieval charges.
Choose Intelligent-Tiering for all weekly-read files and omit its monitoring fee or the eligibility threshold from the comparison.
Compare storage-rate savings with Standard-IA retrieval, request and minimum-duration/size charges for the measured access pattern.
Compare only the cost of 10 TB of Standard-IA storage and assume the repeated employee GET requests incur no additional retrieval fees.

Explanation

Correct Answer

Lower storage rates can be offset by repeated retrieval and storage minimum billing when data is accessed regularly.

Incorrect Answers

For weekly access, retrieval fees and storage minimums can erase the lower at-rest unit rate relative to S3 Standard.

Intelligent-Tiering can be useful for unpredictable access but does not eliminate its tiering-specific pricing and size rules; the requested comparison is Standard versus Standard-IA for measured weekly retrievals.

Standard-IA requests and retrieved bytes can be billable, so ignoring actual weekly reads gives an incomplete and potentially wrong comparison.

Question 642

A lake contains unpredictable-access archives and many 20-KiB event objects. Select TWO conclusions needed before applying S3 Intelligent-Tiering to the entire inventory.

Move all objects into S3 Glacier Deep Archive on day one and promise millisecond retrieval when a project becomes active.
Assume every 20-KiB object moves to an automatic archival tier after 30 idle days.
Evaluate Intelligent-Tiering for eligible larger objects whose access frequency varies unpredictably.
Account separately for objects smaller than 128 KiB because they are not monitored or automatically tiered.
Use an S3 lifecycle rule that permanently deletes all objects whenever their read frequency changes.

Explanation

Correct Answer

The storage class monitors eligible objects and automatically adjusts tiers with an associated monitoring charge.

The small-object exception can materially change the expected savings for a high-count tiny-object dataset.

Incorrect Answers

Deep Archive requires asynchronous restoration and has a 180-day minimum; it cannot replace instant-access tiering for unpredictable use.

Objects under the monitoring-size threshold are ineligible for automatic lower-tier movement.

Cost tiering should not bypass a business retention requirement or conflate reduced access with deletion authority.

Question 643

Legal evidence is accessed about twice per year. Planned audits typically need selected archived objects available within six hours, and the team will budget for the appropriate retrieval tier and capacity. Which S3 Glacier storage class is a strong lower-cost alternative to instant-access storage?

Use S3 Glacier Flexible Retrieval and select appropriate Standard or Expedited restore options; plan capacity for time-sensitive audits and account for restore and minimum-storage charges.
Use Glacier Deep Archive with standard restoration and treat every recovery request as guaranteed complete within six hours.
Use S3 Glacier Deep Archive with expedited retrieval and assume the fastest Flexible Retrieval restore tier applies to Deep Archive.
Use Standard-IA and assume its at-rest unit rate is automatically lower than Glacier Flexible Retrieval for rarely read long-lived evidence.

Explanation

Correct Answer

S3 Glacier Flexible Retrieval supports asynchronous restoration typically within several hours for Standard requests and minutes for eligible Expedited requests. For firm operational windows, use scheduled restores or appropriate provisioned expedited retrieval capacity and verify object size, restore throughput and pricing; no universal six-hour guarantee exists for every workload.

Incorrect Answers

Deep Archive recovery can be longer than the audit window; Flexible Retrieval provides faster supported restore options.

Deep Archive is not interchangeable with Glacier Flexible Retrieval expedited restoration; its recovery options may miss a six-hour deadline.

Standard-IA provides immediate access and a different storage price/duration tradeoff; the audit window permits cheaper asynchronous Flexible Retrieval.

Question 644

A regulated company retains audit copies for a decade, retrieves them almost never, and accepts restoration taking many hours. Which least-cost archival candidate should it evaluate?

Select Glacier Instant Retrieval purely because it has the same lowest long-term storage rate and 180-day minimum as Deep Archive.
Choose S3 One Zone-IA for the sole long-lived compliance copy and treat one-AZ storage as the same durability/resilience design as a multi-AZ archive.
Choose S3 Glacier Flexible Retrieval but assume the larger at-rest price buys no recovery-time improvement over Deep Archive.
Evaluate S3 Glacier Deep Archive with its long retrieval delays and 180-day minimum-storage duration.

Explanation

Correct Answer

Deep Archive targets very infrequent access where long restore times are compatible with business obligations.

Incorrect Answers

Instant Retrieval costs and retrieval behavior differ from Deep Archive; it is designed for millisecond access rather than very cold archival economics.

One Zone-IA is a single-AZ class and can be lost with its AZ; a regulated sole evidence copy needs appropriate retention and resilience.

Flexible Retrieval is designed for shorter restore windows and has different economics; the question explicitly tolerates a very long recovery to prioritize lowest cold storage rates.

Question 645

A temporary video-processing staging dataset can be regenerated from its durable multi-AZ source and rarely needs access for a month. Which cheaper S3 IA class may be acceptable?

Use One Zone-IA for the only non-recreatable compliance evidence copy because its lower rate implies equivalent AZ disaster resilience.
Select S3 Standard-IA and assume it always has the same monthly storage price as One Zone-IA despite multi-AZ resilience.
Consider S3 One Zone-IA only if loss of its single AZ copy is explicitly tolerable.
Select S3 Glacier Flexible Retrieval as live staging storage while assuming the video processor can access archived objects immediately with ordinary GET.

Explanation

Correct Answer

One Zone-IA lowers storage cost by not retaining replicas across multiple AZs; it is unsuitable for sole irreplaceable copies.

Incorrect Answers

One Zone-IA stores a copy in one Availability Zone and is not suitable when loss of that AZ would destroy irreplaceable data.

Standard-IA retains stronger AZ resilience but different storage economics; the stated recreatable staging data may justify one-AZ cost savings.

Flexible Retrieval generally requires restore before ordinary read access, unlike an infrequent-access class appropriate for staging.

Question 646

A team uploads 1 TB to Standard-IA and expires all objects 12 days later; it expects charges only for 12 days. What billing rule matters?

Budget only the 12 days the Standard-IA objects exist and assume deletion prevents all remaining minimum-duration billing.
Model the Standard-IA minimum storage duration and associated early-deletion charges before choosing a 12-day lifecycle.
Convert the objects to S3 Standard before the 12-day deletion and assume the original Standard-IA minimum-duration charge retroactively vanishes.
Enable S3 Versioning and assume that only current object versions are subject to Standard-IA minimum-duration billing.

Explanation

Correct Answer

Some infrequent-access and archival classes bill for minimum durations even if data is deleted or moved early.

Incorrect Answers

Standard-IA has a 30-day minimum storage duration, so early deletion can still incur minimum storage charges.

Changing or expiring objects early does not erase the remaining minimum-duration billing under Standard-IA.

Noncurrent object versions can also incur storage-class and minimum-duration costs; versioning does not waive the original 30-day commitment.

Question 647

A media client launches hundreds of multipart uploads but crashes frequently before completion. Incomplete part storage accumulates. What automated cleanup reduces this spend?

Configure an S3 lifecycle rule to abort incomplete multipart uploads after an appropriate age and fix client completion handling.
Rely on S3 Versioning to make every orphaned multipart part disappear automatically when the uploader process crashes.
Create a bucket lifecycle rule that expires completed temporary objects after 30 days but omits the separate AbortIncompleteMultipartUpload action for uncommitted upload parts.
Enable an S3 replication rule and expect replication to remove uncommitted multipart parts from the source bucket after client failure.

Explanation

Correct Answer

Part storage for incomplete uploads is billable until aborted; lifecycle cleanup avoids indefinite orphaned-upload charges.

Incorrect Answers

Versioning preserves completed object versions; incomplete multipart parts require explicit abort or suitable lifecycle cleanup.

Completed-object expiration does not apply to in-progress multipart upload parts that never formed an object. Configure an explicit abort-incomplete-multipart lifecycle rule or client abort to reclaim billable parts.

Replication operates on eligible completed object versions and does not abort abandoned source multipart upload state.

Question 648

An organization has hundreds of buckets and wants prioritized evidence of noncurrent-version growth, age, prefixes and cost opportunities. Which managed S3 analytics?

Configure S3 Storage Lens metrics and assume it permanently deletes all noncurrent versions without any lifecycle policy or deletion job.
Use Amazon S3 Inventory exports alone to infer historical bucket-level request activity trends and noncurrent-version retention growth without aggregation, cost metrics or snapshot history.
Use S3 Storage Lens dashboards and appropriate advanced metrics to identify object-storage usage and activity patterns.
Enable Intelligent-Tiering on one bucket and assume its object access monitoring supplies historical Storage Lens organization-wide bucket trends.

Explanation

Correct Answer

Storage Lens aggregates organization/bucket-level object and activity trends to guide targeted lifecycle remediation.

Incorrect Answers

Storage Lens is an analytics/visibility tool; deletion requires explicit approved lifecycle or operational action.

Inventory lists object metadata at scheduled intervals. It is useful for targeted object analysis but does not by itself replace Storage Lens organization-wide usage and activity dashboards.

Tiering monitors object access eligibility and movement; the required cross-bucket usage, noncurrent-version and activity analytics come from Storage Lens.

Question 649

An EBS gp2 volume has stable low usage but its owner increased its size solely to obtain more baseline IOPS. Which more controllable and often cheaper alternative should be evaluated?

Grow the gp2 volume capacity solely to raise IOPS and ignore whether gp3 independent performance could be cheaper.
Use EBS io2 Block Express for the entire low-use volume without benchmarking its premium storage and IOPS charges against gp3.
Migrate to gp3 and provision required IOPS and throughput independently of storage capacity.
Move an EC2 block device to S3 Glacier Deep Archive and assume the application continues to issue low-latency random block writes through its EBS device path.

Explanation

Correct Answer

gp3 separates storage allocation from performance configuration, avoiding unnecessary size growth used to gain gp2 baseline IOPS.

Incorrect Answers

A bigger gp2 volume raises storage cost; gp3 allows matching supported IOPS and throughput without unnecessary GiB allocation.

io2 targets high-performance durability/latency requirements, not the stated low utilization and gp2 IOPS-capacity coupling that gp3 decouples.

Glacier is object archival storage and not a direct EBS block replacement for live EC2 volume operations.

Question 650

A large EC2 block device stores multi-terabyte sequential log files and requires high streaming throughput but not high random IOPS or bootability. Which EBS tier is economical?

Put a random-write transactional database root filesystem on EBS st1 and assume its sequential throughput design gives premium random IOPS.
Evaluate EBS st1 throughput-optimized HDD for a supported sequential workload instead of premium io2.
Use EBS gp2 and expand the volume solely to raise baseline IOPS despite having a large sequential-throughput workload.
Use EBS sc1 cold HDD as a drop-in guaranteed highest-throughput class without checking the throughput bound of the large streaming job.

Explanation

Correct Answer

st1 emphasizes sustained sequential MB/s throughput on large attached data volumes, not low-latency random transactions.

Incorrect Answers

Throughput HDD is for large sequential I/O and not the suitable boot or high-random-IOPS database volume type.

gp2 is SSD with performance/cost coupling that may be less economical than a supported st1 sequential stream; evaluate the throughput profile.

sc1 is a cold HDD tier with lower throughput and access assumptions than st1; a sustained large sequential workload may require st1 throughput-optimized HDD.

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

Question 640

Explanation

Correct Answer

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Question 641

Explanation

Correct Answer

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Question 642

Explanation

Correct Answer

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Question 643

Explanation

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Question 644

Explanation

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Question 645

Explanation

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Question 646

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Question 647

Explanation

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Question 648

Explanation

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Question 649

Explanation

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Question 650

Explanation

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AWS Certified Solutions Architect - Associate SAA-C03 Practice Tests