Amazon AWS Certified Solutions Architect - Associate SAA-C03 Practice Test 46

Question 450

An EC2 OLTP engine requires sustained high random IOPS and tight sub-millisecond storage latency beyond the desired gp3 tier. Which EBS volume family is appropriate if instance support is verified?

st1 HDD, which prioritizes sequential throughput rather than random IOPS.
Use a gp3 SSD with an IOPS setting that is already at its supported limit and assume a lower-priced storage class must meet any higher random-IOPS/latency requirement.
Provisioned IOPS io2 Block Express with suitable IOPS/throughput and instance compatibility.
sc1 Cold HDD with the same IOPS objective as io2.

Explanation

Correct Answer

io2 Block Express targets demanding transactional performance and low storage-latency distribution.

Incorrect Answers

HDD seek behavior does not meet low-latency random I/O requirements.

gp3 offers a configurable performance range, but workloads exceeding its supported limits may need provisioned IOPS io2 Block Express with a compatible instance and tested latency characteristics.

Cold HDD optimizes rarely accessed sequential data, not high transactional IOPS.

Question 451

A log processor scans very large EBS-backed sequential files and is throughput-sensitive rather than random-IOPS-sensitive. Which volume type often matches this pattern at a lower cost?

io2 Block Express by default regardless of whether the application uses random I/O.
Throughput Optimized HDD st1, after checking its sequential I/O and boot-volume restrictions.
sc1 as the primary choice for frequently accessed large sequential streams without checking throughput.
Choose EBS gp3 but set only its minimum throughput while assuming that the SSD class automatically delivers the sustained sequential bandwidth demanded by this scan.

Explanation

Correct Answer

st1 is designed for large streaming/sequential transfers, not latency-sensitive small random transactions.

Incorrect Answers

Higher-priced provisioned random IOPS may add no value for sequential scans.

Cold HDD is for less frequently accessed throughput and may not match the sustained workload.

gp3 throughput must be provisioned within supported limits; it cannot be assumed to exceed an explicit configured bound, and HDD st1 may be economical for high sequential access.

Question 452

A fleet of Linux containers and EC2 instances across AZs must read and update the same directory tree with POSIX ownership and standard NFS semantics. Which managed storage service fits?

Amazon EFS with multi-AZ mount targets, appropriate security groups and POSIX authorization.
A single attached EBS volume mounted as read/write simultaneously by arbitrary hosts without a cluster-aware filesystem.
S3 object store mounted as if it guaranteed all NFS POSIX rename/locking operations.
Use a managed FSx for Windows File Server SMB share and expect Linux POSIX ownership, NFS locks and application rename behavior to remain fully identical without any migration testing.

Explanation

Correct Answer

EFS exposes shared NFS file-system semantics across appropriately configured clients.

Incorrect Answers

Normal EBS attachment and filesystem semantics do not provide unrestricted shared multi-host NFS.

S3 uses object API semantics, not a native POSIX shared file system.

SMB Windows file semantics and the required POSIX/NFS workloads are not interchangeable. EFS provides supported shared NFS/POSIX behavior and AZ mount targets when planned correctly.

Question 453

An EFS file system is mostly quiet but experiences short unpredictable spikes in application file traffic. Which throughput option should be assessed?

Provision a fixed very high throughput around the clock without evaluating idle periods.
Use Bursting mode while assuming storage capacity cannot affect the available performance.
EFS Elastic throughput, monitored for burst demand and usage charges.
Change EFS to One Zone storage and assume the storage-resilience option automatically increases the file system throughput ceiling for unpredictable bursts.

Explanation

Correct Answer

Elastic throughput scales with workload demands without needing fixed provisioned throughput or burst credits.

Incorrect Answers

Unpredictable short peaks may make permanently provisioned capacity inefficient.

Bursting throughput is linked to file-system stored-data characteristics and credits.

EFS One Zone addresses storage AZ locality and availability, not whether the chosen throughput mode scales to workload bursts. Choose throughput mode independently of storage placement.

Question 454

A client must reliably upload a 80 GB file to S3 over a connection with occasional failures and wants to retry only failed data ranges. Which upload approach fits?

Use Amazon S3 multipart upload with supported part sizing and completion checks.
Use one gigantic single PutObject request beyond the supported single-request limit.
Upload all 80 GB through one presigned single-part PutObject request and assume using a signed URL removes the S3 single-request payload limit.
Open 80 independent multipart uploads for the same key and expect S3 to combine their final objects into one 80-GB object without a single coherent multipart completion manifest.

Explanation

Correct Answer

Parts can upload independently and unsuccessful parts retried without restarting the full object transfer.

Incorrect Answers

A single PUT has stricter size limits and weak selective retry.

Presigning controls authentication, not the per-request PutObject size limit. Multipart upload divides large data into parts that can be retried and explicitly completed.

Multipart upload parts must belong to the same upload ID, and a CompleteMultipartUpload action lists the intended parts. Separate upload sessions are not transparently merged into one object.

Question 455

Video editors on distant continents upload large source objects into one AWS Region and report poor internet-path upload performance. Which optional S3 transport feature should be benchmarked?

Use ordinary multipart upload with retries alone and assume that it guarantees a faster long-haul Internet route than the client-to-Region path already observed as slow.
Enable S3 server-side encryption with a customer-managed KMS key and assume the encryption policy automatically reduces client-to-Region network RTT.
S3 Transfer Acceleration using supported accelerated bucket endpoints, comparing real latency and fees.
A KMS key rotation schedule to shorten the network RTT.

Explanation

Correct Answer

Acceleration can use optimized AWS edge paths for long-distance object transfers; benefit depends on path and pricing.

Incorrect Answers

Multipart parallelism improves recovery and utilization but does not automatically change the geographic Internet route. Transfer Acceleration can leverage edge ingress and must be benchmarked for the clients.

SSE-KMS secures objects at rest but does not shorten long-haul Internet routing. Evaluate the optional accelerated endpoint and its fees separately from encryption.

Key rotation does not accelerate transfer paths.

Question 456

A high-performance EC2 analytic worker repeatedly reads and writes small objects with single-digit millisecond goals and can tolerate a selected AZ storage boundary. Which S3 option should be evaluated?

S3 Glacier Deep Archive for immediate single-digit millisecond reads.
An ordinary S3 Standard bucket configured to be zonal through Route 53.
Use an S3 Multi-Region Access Point with ordinary regional buckets and assume routing between Regions provides the same zonal single-digit millisecond latency as a same-AZ directory bucket.
S3 Express One Zone in a suitable directory bucket colocated with the compute AZ.

Explanation

Correct Answer

S3 Express One Zone targets zonal high-request-rate object access with lower latency but does not provide multi-AZ storage placement.

Incorrect Answers

Archival restore is much slower than live object access.

General-purpose S3 Standard stores data across AZs and is not a directory bucket.

A multi-Region routing policy does not create a zonal directory-bucket storage plane colocated with the EC2 worker. S3 Express One Zone targets that low-latency AZ-local access pattern.

Question 457

A parallel HPC training workload needs thousands of compute processes to read the same high-throughput file-system namespace, with datasets originally stored in S3. Which AWS file service fits?

FSx for Lustre with suitable high-performance storage and an S3 data repository association when supported.
FSx for Windows File Server solely for Linux Lustre parallel-processing semantics.
EBS gp3 on one worker as the only globally shared namespace.
Use EFS General Purpose storage with an undersized throughput mode and assume it guarantees the same parallel HPC file throughput and S3 repository integration as FSx for Lustre.

Explanation

Correct Answer

Lustre provides parallel POSIX file access for compute-intensive workloads and can link S3 data repositories.

Incorrect Answers

Windows SMB is a different file protocol and workload target.

One attached block volume does not provide a fleet-wide parallel filesystem.

EFS is a shared NFS file service, but extremely parallel high-throughput Lustre workloads and supported S3 data repository associations favor evaluating FSx for Lustre for the stated access pattern.

Question 458

A fleet of Windows applications needs a managed SMB share with Windows ACLs, Active Directory integration and familiar Windows administration. What AWS file service should be considered?

Amazon EFS NFS access points as a direct equivalent of NTFS ACL and SMB.
Amazon S3 object store as a native NTFS SMB file share without a gateway.
Amazon FSx for Windows File Server configured with appropriate AD, SMB and Windows permissions.
Use Amazon FSx for OpenZFS with its NFS protocol and assume it natively provides Microsoft SMB/NTFS file shares with Windows Active Directory authorization.

Explanation

Correct Answer

FSx for Windows exposes SMB shares with Microsoft file server compatibility.

Incorrect Answers

EFS is NFS/POSIX rather than an SMB Windows file server.

S3 objects do not directly expose Windows file-server protocol.

FSx for OpenZFS exposes supported NFS semantics, not the Windows SMB/NTFS managed stack sought. FSx for Windows File Server supplies that application model.

Question 459

An enterprise NAS estate uses NFS and SMB plus ONTAP snapshots and common storage-management workflows. It needs a managed file-service target in AWS. Which FSx variant matches?

Amazon FSx for NetApp ONTAP, subject to supported protocol, directory and migration requirements.
FSx for Lustre exclusively for corporate SMB shares and ONTAP snapshots.
EBS st1 as a standalone NAS cluster across accounts.
Use Amazon FSx for Windows File Server and assume its Windows SMB/NTFS administration also provides ONTAP-native snapshot interfaces and enterprise multi-protocol NFS services unchanged.

Explanation

Correct Answer

ONTAP supports enterprise file shares and familiar storage-management capabilities across relevant protocols.

Incorrect Answers

Lustre does not deliver the same enterprise ONTAP management contract.

An EBS block device is not an ONTAP-managed shared filer.

FSx for Windows supports Windows file-serving features, but ONTAP-specific administrative and snapshot workflows require FSx for NetApp ONTAP, with migration compatibility verified.

Question 460

An on-premises office has legacy SMB/NFS applications but must store durable file content in S3 with a local hot-data cache. Which hybrid service is a fit?

Mount S3 Glacier Deep Archive as a live POSIX disk without restore.
Give every desktop EC2 instance-store volumes to share files across sites.
Mount S3 objects using a Linux-only S3 mount helper at every Windows workstation and assume the tool provides the office’s existing SMB file shares and a managed on-premises hot-data cache.
AWS Storage Gateway S3 File Gateway with supported file shares and appropriately sized local cache.

Explanation

Correct Answer

File Gateway presents SMB/NFS to clients and backs file content with S3, using local caching and asynchronous upload.

Incorrect Answers

Archive is not directly writable SMB/NFS file storage.

Instance store is host-local and ephemeral.

An S3 object mount helper is not a drop-in on-premises SMB/NFS file gateway with integrated local caching and share administration. S3 File Gateway supplies compatible configured shares and cache.

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

Question 450

Explanation

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Question 451

Explanation

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Question 452

Explanation

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Question 453

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Question 454

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Question 455

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Question 456

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Question 457

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Question 458

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Question 459

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Question 460

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AWS Certified Solutions Architect - Associate SAA-C03 Practice Tests