CLF-C01 Exam QuestionsBrowse all questions from this exam

CLF-C01 Exam - Question 90


Which AWS services should a company use to read and write data that changes frequently? (Choose two.)

Show Answer
Correct Answer: BE

Amazon RDS is a managed relational database service that supports various database engines like MySQL, PostgreSQL, Oracle, and SQL Server. It is designed for applications requiring frequent updates to the data and provides high availability, scalability, and performance. Amazon Elastic File System (EFS) is a scalable file storage service that allows multiple Amazon EC2 instances to access the same data concurrently. EFS is suitable for applications needing frequent read and write operations, offering low latency and high throughput. Both services are designed to handle frequently changing data effectively.

Discussion

58 comments
Sign in to comment
BloodyMery
Dec 21, 2022

The correct answers are: B. Amazon RDS and D. Amazon Redshift. Amazon S3 Glacier (option A) is a storage service for archiving data that is infrequently accessed and for which retrieval times of several hours are acceptable. It is not suitable for data that changes frequently. AWS Snowball (option C) is a data transfer service that enables the transfer of large amounts of data into and out of AWS using physical devices. It is not designed for reading and writing data that changes frequently. Amazon Elastic File System (Amazon EFS) (option E) is a fully managed file storage service for use with Amazon EC2 instances. It is designed for storing and sharing files, and is not suitable for storing data that changes frequently.

Cloud_Explorer
Feb 17, 2023

EFS is a block storage like a hard drive and capable of frequent read/write in to the volume.

Krish_Kaustub
Mar 15, 2023

EBS is block storage

fndslike
Aug 6, 2023

EFS is File system not block

Krish_Kaustub
Mar 15, 2023

EBS is block storage

et_learner
Mar 15, 2023

why change data frequently in data warehouse?

fndslike
Aug 6, 2023

EFS is File system not block

fluorescentwhite
Oct 28, 2022

Should be B & E. Amazon Redshift can be primarily classified under "Big Data as a Service" instead of "Cloud Storage".

AspiringScriptKiddie
Feb 22, 2023

yes, but how is that relevant to this question? Big Data, doesn't mean data that changes often...

BallocksOptions: BE
Oct 13, 2023

A. Amazon S3 Glacier is for long-term data archival and is designed for data that is infrequently accessed. It is not ideal for frequently changing data. C. AWS Snowball is a physical data transport solution for large-scale data transfer and migration. It's not for reading and writing frequently changing data. D. Amazon Redshift is a data warehousing service, which is optimized for querying and analyzing large datasets. It's not typically used for frequently changing data.

u_waysOptions: BE
Jul 14, 2023

It's important to note that Amazon Redshift is a **data warehouse** which means it is not meant to change frequently.

mouadh
Aug 31, 2022

its EFS and RDS

Prates_BR
Sep 1, 2022

Ok, please explain why! Tks

N3ar
Nov 15, 2022

I took the AWS Cloud Practitioner Essential course on the AWS learning platform. Over there, they taught me that EFS is for 'reading and writing simultaneously'

ayush13Options: BE
May 13, 2023

For reading and writing data that changes frequently, a company should use Amazon RDS (B) and Amazon Elastic File System (Amazon EFS) (E). Amazon RDS is a managed relational database service that supports multiple database engines, including Amazon Aurora, PostgreSQL, MySQL, MariaDB, Oracle Database, and SQL Server. It is designed for applications that require frequent updates to the data. Amazon EFS is a fully managed file system that supports the NFSv4 protocol. It is designed for applications that require shared access to files and require frequent updates to the data.

ajchi1980Options: BE
Jun 29, 2023

B. Amazon RDS (Relational Database Service): Amazon RDS is a fully managed relational database service that provides scalable and reliable database solutions. It supports popular database engines like MySQL, PostgreSQL, Oracle, and SQL Server. You can perform frequent read and write operations on the data stored in an Amazon RDS database. E. Amazon Elastic File System (Amazon EFS): Amazon EFS is a scalable file storage service that provides shared file storage for multiple Amazon EC2 instances. It is suitable for use cases where multiple instances need concurrent read and write access to the same data. Amazon EFS allows you to handle data that changes frequently and enables multiple users to access and modify the data simultaneously. Therefore, the correct choices are B. Amazon RDS and E. Amazon Elastic File System (Amazon EFS).

man5484Options: BE
Jul 12, 2023

Amazon RDS is a fully-managed relational database service that offers a wide range of database engines, including MySQL, PostgreSQL, Oracle, and SQL Server. RDS is a good choice for read and write data that changes frequently because it provides high availability, scalability, and performance. Amazon EFS is a fully-managed file system that provides a simple, scalable, and secure way to share files between Amazon EC2 instances. EFS is a good choice for read and write data that changes frequently because it provides low latency and high throughput.

Nucleric
Sep 12, 2022

Redshift is a warehouse, the key word is "date is frequently used" Redshift is wrong

SmartLearnerOptions: BE
Nov 6, 2022

B and E are correct. Other options are archival.

sirasdf
Jan 5, 2023

B/D are correct. Amazon DynamoDB is a fully managed NoSQL database service that is designed for high scale and performance. DynamoDB allows you to store and retrieve data with very low latency, making it well-suited for applications that require fast access to data. Amazon Redshift is a fast, fully managed data warehouse service that allows you to efficiently analyze large amounts of data using SQL and your existing business intelligence tools. Redshift is designed to handle data that changes frequently and can be used to store and analyze data in near real-time. E is incorrect as EFS is a fully managed file storage service for use with Amazon EC2 instances. It is designed for storing and sharing files, and is not suitable for storing data that changes frequently.

tahagmailOptions: BD
Feb 26, 2023

The hint is data is used frequently

et_learnerOptions: BE
Mar 15, 2023

Option A is incorrect because Amazon S3 Glacier is an archival storage service designed for data that is infrequently accessed and for which retrieval times of several hours are acceptable. Option C is incorrect because AWS Snowball is a data transfer service that is designed to transfer large amounts of data into and out of AWS. Option D is incorrect because Amazon Redshift is a data warehousing service that is designed for large-scale data analytics, and it may not be the best choice for frequently changing data.

VinayhasijaOptions: BE
Mar 15, 2023

B. Amazon RDS: Amazon RDS is a fully managed relational database service that provides scalable, high-performance, and highly available databases. It supports several popular database engines such as MySQL, PostgreSQL, Oracle, and SQL Server, and is optimized for transactional workloads that require frequent reads and writes. E. Amazon Elastic File System (Amazon EFS): Amazon EFS is a fully managed, scalable, and highly available file storage service that provides simple and scalable file storage for use with Amazon EC2 instances. It is designed for workloads that require frequent reads and writes and provides low-latency performance for data-intensive applications.

ESAJRROptions: BE
Jun 29, 2023

B. Amazon RDS E. Amazon Elastic File System (Amazon EFS)

khansahab
Sep 2, 2022

EFS & RDS(OLTP)--- due to frequently usable services and Redshift is wrong because it is warehouse(OLAP).

Esward
Sep 5, 2022

RDS and EFS are correct. Redshift is data ware housing DB where it should have a lots of data. For frequent reads and writes there will be more latency

bilel500Options: BD
Sep 6, 2022

Answer is B && D.

Ahmed_RootOptions: BE
Sep 12, 2022

RedShift is for log analytics, the response should be RDS and EFS

pancmanOptions: BE
Sep 12, 2022

Correct answer is B and E. For those saying B and D, please look up how a data warehouse works.

Craig92866
Sep 28, 2022

I chose D because I looked up how a data warehouse works. "A data warehouse is specially designed for data analytics, which involves reading large amounts of data to understand relationships and trends across the data. A database is used to capture and store data, such as recording details of a transaction." That sounds like frequent read/write to me. -https://aws.amazon.com/data-warehouse/

dasigrist
Oct 13, 2022

Data warehouse is write once (batch) - reads frequently. Frequent data read/write is OLTP

dasigrist
Oct 13, 2022

Data warehouse is write once (batch) - reads frequently. Frequent data read/write is OLTP

sumanshu
Sep 16, 2022

Vote for B & E

music4krisOptions: BE
Sep 21, 2022

Redshift is a datawarehouse and cannot be the right answer. correct answer is B and E

MaGarMa
Oct 14, 2022

It says that, but also this: "Amazon Redshift is a fully managed service and offers both provisioned and serverless options, making it easy for you to run and scale analytics without having to manage your data warehouse" REF: https://aws.amazon.com/redshift/faqs/?nc1=h_ls

Craig92866Options: BD
Sep 28, 2022

The reason E isn't an option is because the question is asking for services and AWS doesn't consider EFS a service. B. Relation Database Service (RDS) is considered a Platform as a Service (PaaS). D. Redshift is AWS's data warehouse service. Data warehouses can definitely be used for frequent read/write activity. https://aws.amazon.com/data-warehouse/

Kanyeeeah
Sep 28, 2022

I agree also that this should not E - Amazon Elastic File System (Amazon EFS) is a simple, serverless, set-and-forget, elastic file system. There is no minimum fee or setup charge. You pay only for the storage you use, for read and write access to data stored in INFREQUENT access storage classes, and for any provisioned throughput. BD - I guess.

Iragmt
Sep 30, 2022

EFS is not just for infrequent access. Like S3 it also has different storage classes https://docs.aws.amazon.com/efs/latest/ug/storage-classes.html

Iragmt
Sep 30, 2022

EFS is not just for infrequent access. Like S3 it also has different storage classes https://docs.aws.amazon.com/efs/latest/ug/storage-classes.html

hvtroller
Oct 2, 2022

I see in FAQ showing that EFS is a service btw > Amazon EFS is a file storage service for use with Amazon compute (EC2, containers, serverless) and on-premises servers https://aws.amazon.com/efs/faq/?nc1=h_ls

MaGarMa
Oct 14, 2022

Yeah, but also says this at the beginning: "Amazon Elastic File System (Amazon EFS) is a simple, serverless, set-and-forget elastic file system that makes it easy to set up, scale, and cost-optimize file storage in AWS"

MaGarMa
Oct 14, 2022

Yeah, but also says this at the beginning: "Amazon Elastic File System (Amazon EFS) is a simple, serverless, set-and-forget elastic file system that makes it easy to set up, scale, and cost-optimize file storage in AWS"

TeetotalerOptions: BD
Sep 29, 2022

The reason why E is not an option is because EFS works with infrequently accessed files also https://aws.amazon.com/efs/features/infrequent-access/?pg=ln&sec=be

Iragmt
Sep 30, 2022

Try reading EFS storage classes. It is not just for infrequently accessed files. https://docs.aws.amazon.com/efs/latest/ug/storage-classes.html

JAMTARA
Dec 7, 2022

ashif says will ask Manish the DJ and will clear the doubt and ashif says the answer and a and e

siddhardhat7670Options: BE
Jan 28, 2023

CorrecT ANSWER B & E

noahsarkOptions: BD
Feb 25, 2023

Amazon RDS Amazon Redshift https://aws.amazon.com/solutions/case-studies/nasdaq-case-study/?pg=ln&sec=c

linux_adminOptions: BE
Mar 13, 2023

B. Amazon RDS: Amazon RDS is a managed relational database service that makes it easy to set up, operate, and scale a relational database in the cloud. RDS provides scalable and highly available storage for relational data that changes frequently. E. Amazon Elastic File System (Amazon EFS): Amazon EFS is a fully managed, scalable, and highly available file storage service that can be accessed by multiple Amazon EC2 instances and on-premises servers at the same time. EFS provides a common data source that can be used to share data across multiple instances or servers, making it ideal for scenarios where data changes frequently.

Ikki77Options: BE
Apr 20, 2023

The two AWS services that a company should use to read and write data that changes frequently are: B. Amazon RDS: Amazon RDS is a managed relational database service that provides a scalable and highly available database platform for applications. It supports various popular database engines such as MySQL, PostgreSQL, Oracle, and SQL Server, and allows users to easily create, operate, and scale a relational database in the cloud. Amazon RDS is well-suited for applications that require frequent read and write operations to the database. E. Amazon Elastic File System (Amazon EFS): Amazon EFS is a fully managed, scalable, and highly available file storage service for use with Amazon EC2 instances. It provides a simple, scalable, and reliable way to share data across multiple EC2 instances, and supports multiple file systems, file locking, and file permissions. Amazon EFS is well-suited for applications that require shared access to frequently changing data, such as content management systems, web serving, and Big Data applications.

nixonlawOptions: BE
Apr 29, 2023

B&E, Redshift is DW, so it is more likely to use as read rather than write.

Warsame21Options: BE
Jun 15, 2023

B. Amazon RDS E. Amazon Elastic File System (Amazon EFS).

VijaykpmOptions: BE
Jun 24, 2023

B&E. (Redshift is a DW, hence more likely to be used for read rather than write)

Dipa_2910Options: BE
Feb 3, 2025

Option B and E

[Removed]Options: BE
Sep 8, 2022

Redshift is a data warehouse

Arvina
Sep 8, 2022

Ans should be RDS and EFS

BruTTusOptions: BE
Sep 21, 2022

Redshift is a data warehouse service.

kasivOptions: BE
Sep 21, 2022

B and E as redshift is warehouse

mwsd
Jan 11, 2023

How is a data warehouse architected? A data warehouse architecture is made up of tiers. The top tier is the front-end client that presents results through reporting, analysis, and data mining tools. The middle tier consists of the analytics engine that is used to access and analyze the data. The bottom tier of the architecture is the database server, where data is loaded and stored. Data is stored in two different types of ways: 1) data that is accessed frequently is stored in very fast storage (like SSD drives) and 2) data that is infrequently accessed is stored in a cheap object store, like Amazon S3. The data warehouse will automatically make sure that frequently accessed data is moved into the “fast” storage so query speed is optimized.

Istiaque
Sep 28, 2022

Answer is BE

KanteneOptions: BD
Oct 27, 2022

Vote for B and D

dark_cherrymonOptions: BD
Nov 28, 2022

b&d, e is wrong

realist66666
Dec 19, 2022

should be BE, because Redshift is for Dataware-house with no real-time queries

solidlense
Jan 12, 2023

B AND D: a company use to read and write "DATA"that changes frequently?

Saif93Options: BE
Jan 19, 2023

BE is the answer.

debabrata6983Options: BE
Jan 26, 2023

Correct Answer should be B& E

fryderykOptions: BD
Feb 9, 2023

I'd rather vote for D (Redshift) than E (EFS). Redshift offers "real time [...] insights'. In contrast, EFS is not described with phrases such as 'real time' of 'data changing frequently'.

KunjanShah
Feb 13, 2023

B & D. As Redshift has a charge for reading and writing data every time.

Cloud_ExplorerOptions: BE
Feb 17, 2023

I'm going with B & E. RDS supports frequent data read/write. EFS is a block storage and better suited for frequent data read/write [compared to object storage].

ShivaTheBoss
Mar 1, 2023

Another question that you can skip and go to next question. Question is not clear enough and options have more than multiple answers that you can select

alvalv2006Options: BD
Mar 13, 2023

BD is correct answer, since Redshift is "Best price-performance for cloud data warehousing" (from AWS)

et_learner
Mar 15, 2023

why change data frequently in data warehouse?

alameen_hameedOptions: BE
Mar 22, 2023

Amazon RDS and Amazon EFS would be the Answer

Guru4CloudOptions: BE
Apr 15, 2023

The AWS services that a company should use to read and write data that changes frequently are: B. Amazon RDS: Amazon Relational Database Service (RDS) E. Amazon Elastic File System (Amazon EFS)

shin3Options: BE
Aug 10, 2023

BE, data warehousing data does no change at all

darthJorgeOptions: BD
Sep 14, 2023

BD es lo correcto.

med_dernounOptions: BD
Oct 11, 2023

Anticipate: When it comes to data it means database solutions

deonlobo
Dec 18, 2023

A and E Not D because Amazon Redshift is a fully managed data warehouse service, and while it supports data analytics queries well, it is not optimized for frequent read and write operations on individual records or rows. It is more suited for analytical processing on large datasets.

tryingravioli
Feb 9, 2024

AWS S3 glaciers are literally for storing archived data....

sonaljainOptions: BE
Dec 28, 2024

Amazon RDS and Amazon Elastic File System (Amazon EFS)

HebaXXOptions: BE
Mar 25, 2025

B& E Amazon RDS is a managed relational database service that is designed for transactional workloads where data is frequently read and written. Amazon EFS is a fully managed network file system that provides scalable storage for applications that require frequent read and write access to data.