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AWS Cloud Practitioner > AWS Storage and Databases > Flashcards

AWS Storage and Databases Flashcards

1
Q

What is an ephemeral type of storage that is physically attached to an EC2 instance?

A

Instance store

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2
Q

True or False? Data written on instance store never gets deleted between EC2 instance terminations.

A

False. When re-starting an EC2 instance from termination, it is likely that host machine will be different from previous startup, hence the physical instance store will be different and will not contain any previous data.

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3
Q

What is a persistent type of block-level storage volumes that you can use with Amazon EC2 instances?

A

Amazon Elastic Block Store (EBS)

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4
Q

What do you call an incremental backup of EBS volumes?

A

Amazon EBS Snapshots

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5
Q

What consists an object storage?

A

Data
Metadata
Key

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6
Q

What is a service that provides object-level storage and stores data as objects in buckets?

A

Amazon Simple Storage Service (S3)

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7
Q

What is the maximum file size for an S3 object?

A

5 TB

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8
Q

What type of S3 Service is designed for frequently accessed data and stores data in a minimum of three Availability Zones?

A

Amazon S3 Standard

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9
Q

What type of S3 Service is ideal for infrequently accessed data but has high availability when needed?

A

Amazon S3 Standard-IA

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10
Q

What type of S3 Service stores data in a single Availability Zone?

A

Amazon S3 Standard One Zone-IA

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11
Q

What S3 service is ideal for data with unknown or changing access patterns and automatically moves it to the infrequent access tier when data is not accessed by more than 30 days and reverts back to Amazon S3 Standard tier once moved data is accessed?

A

Amazon S3 Intelligent-Tiering

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12
Q

What S3 service works well for archived data that requires immediate access and has same access performance as Amazon S3 Standard?

A

Amazon S3 Glacier Instant Retrieval

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13
Q

What is a low-cost storage class that is ideal for data archiving and is able to retrieve objects within a few minutes to hours?

A

Amazon S3 Glacier Flexible Retrieval

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14
Q

What S3 service tier supports long-term retention and digital preservation for data that might be accessed once or twice in a year able to retrieve objects within 12-48 hours?

A

Amazon S3 Glacier Deep Archive

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15
Q

What S3 service delivers object storage to your on-premises AWS Outposts environment?

A

Amazon S3 Outposts

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16
Q

Is Amazon EBS stored on single availability zone?

A

Yes

17
Q

Is Amazon Elastic File System (EFS) stored on multiple availability zones?

A

Yes, this allows for concurrent across multiple availability zones.

18
Q

What is a service that enables you to run relational databases in the AWS Cloud?

A

Amazon Relational Database Service (RDS)

19
Q

What is an enterprise-class relational database that is compatible with MySQL and PostgreSQL relational databases.

A

Amazon Aurora. It is also up to five times faster than standard MySQL databases and up to three times faster than standard PostgreSQL databases.

20
Q

What is a server-less, key-value database service and delivers single-digit millisecond performance at any scale?

A

Amazon DynamoDB

21
Q

What is a data warehousing service that you can use for big data analytics?

A

Amazon RedShift

22
Q

What service enables you to migrate relational databases, nonrelational databases, and other types of data stores?

A

Amazon Database Migration Service (DMS)

23
Q

What is a document database service that supports MongoDB workloads? (MongoDB is a document database program.)

A

Amazon DocumentDB

24
Q

What is a graph database service that builds and runs applications that work with highly connected datasets, such as recommendation engines, fraud detection, and knowledge graphs?

A

Amazon Neptune

25
Q

What service allows you to review a complete history of all the changes that have been made to your application data?

A

Amazon Quantum Ledger Database (QLDB)

26
Q

What is a service that you can use to create and manage blockchain networks with open-source frameworks

A

Amazon Managed Blockchain

27
Q

What is a distributed ledger system that lets multiple parties run transactions and share data without a central authority?

A

Blockchain

28
Q

What is a service that adds caching layers on top of your databases to help improve the read times of common requests?

A

Amazon ElastiChache

29
Q

What is an in-memory cache for DynamoDB?

A

Amazon DynamoDB Accelerator (DAX)

AWS Cloud Practitioner (15 decks)

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