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DevOps > Storage > Flashcards

Storage Flashcards

1
Q

What does AWS Transfer Family offer?

A

Fully managed support for transferring files over SFTP, AS2, FTPS, and FTP directly into and out of S3 or Amazon EFS.

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2
Q

Which file transfer protocols are supported by AWS Transfer Family?

A

SFTP, AS2, FTPS, FTP

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3
Q

What are the two AWS storage services that AWS Transfer Family integrates with?

A

S3 and Amazon EFS.

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4
Q

What does AS2 stand for and what is its primary use?

A

Applicability Statement 2; it enables secure and reliable messaging over HTTP/S and is often used for EDI (Electronic Data Interchange) transactions

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5
Q

What is the purpose of AWS Snow Family?

A

To physically move data in or out of the cloud when moving it over the internet or private connection is slow, difficult, or costly.

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6
Q

To which service is data delivered when using AWS Snow Family?

A

Amazon S3.

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7
Q

Name the three devices in the AWS Snow Family.

A

Snowcone, Snowball Edge, Snowmobile

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8
Q

What is AWS Snowcone used for?

A

Edge computing and data transfer.

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9
Q

What are the data transfer methods for AWS Snowcone?

A

Physically shipping the device back to AWS. Using AWS DataSync which runs on the device’s compute.

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10
Q

What are the two variants of AWS Snowcone and their storage capacities?

A

Snowcone - 8 TB HDD, Snowcone SSD - 14 TB SSD

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11
Q

What key features does AWS Snowcone offer?

A

Collecting IoT data using AWS IoT Greengrass, Edge computing workloads using EC2 instances, Multiple layers of encryption

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12
Q

What additional capabilities does Snowball Edge have compared to Snowcone?

A

More local processing, edge-computing workloads, and device configuration options.

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13
Q

What are the configuration options for Snowball Edge?

A

Storage-Optimized 80 TB, Storage-Optimized 210 TB, Storage-Optimized with EC2-Compatible Compute: 80 TB, 40 vCPUs, and 80 GB of memory, Compute-Optimized: 104 vCPUs, 416 GB of memory, and 28 TB of dedicated NVMe SSD, Compute-Optimized with GPU: includes the same GPU as in P3 instance type

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14
Q

What is AWS Snowmobile?

A

A shipping container pulled by a semi-trailer truck capable of transferring up to 100 PB of data.

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15
Q

Where is data imported when using Snowmobile?

A

Either to S3 or Glacier.

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16
Q

What does IOPS stand for and what does it measure?

A

Input/Output Per Second (IOPS); it measures the speed of non-contiguous reads and writes.

17
Q

What is Throughput in the context of AWS storage?

A

The data transfer rate.

18
Q

What does Bandwidth measure?

A

The total possible speed of data movement.

19
Q

What are the characteristics of the gp2 volume type?

A

General Purpose SSD; used for general workloads like virtual desktops, medium-size databases, low-latency applications, boot volumes, and development/test environments.

20
Q

How does gp3 differ from gp2?

A

gp3 is 20% cheaper per GB than gp2 but serves the same use cases.

21
Q

What is io1 used for and what are its key features?

A

Provisioned IOPS SSD; used for workloads requiring sustained IOPS performance or more than 16,000 IOPS, such as I/O-intensive databases.

22
Q

What is unique about io2 compared to io1?

A

io2 is more durable than io1. Volumes created after 21.11.2023 are io2 Block Express, which offers higher throughput and IOPS.

23
Q

What are io2 Block Express volumes known for?

A

Higher throughput, higher IOPS, and larger storage capacity.

24
Q

What is the purpose of sc1 and its key characteristics?

A

Cold HDD; lowest cost HDD volume for infrequently accessed workloads. It is throughput-oriented storage.

25
Q

What is the st1 volume type and its primary use case?

A

Throughput Optimized HDD; a magnetic drive optimized for quick throughput, used for big data, data warehouses, and log processing.

26
Q

Describe the standard (Magnetic) volume type.

A

Previous generation HDD; used for workloads where data is infrequently accessed.

27
Q

What is the durability range for gp2, gp3, io1, io2, st1, and sc1?

A

99.8% - 99.9%.

28
Q

What is the durability of io2 Block Express volumes?

A

99.999%.

29
Q

What is the volume size range for gp2 and gp3?

A

1 GiB - 16 TiB.

30
Q

What is the maximum IOPS for io1 and io2 Block Express?

A

io1 has a max IOPS of 64,000, and io2 Block Express has a max IOPS of 256,000.

31
Q

What is the maximum throughput for gp3 and io2 Block Express?

A

gp3 has a maximum throughput of 1,000 MiB/s, and io2 Block Express has a maximum throughput of 4,000 MiB/s.

32
Q

Which volume types support EBS multi-attach?

A

io1 and io2 Block Express support EBS multi-attach.

33
Q

Which volume types support NVMe Reserved?

A

io1 and io2 Block Express support NVMe Reserved

34
Q

Which volume types support Boot volumes?

A

gp2, gp3, io1, and io2 Block Express support Boot volumes.

35
Q

Which volume types are not supported for Boot volumes?

A

sc1, st1, and standard (Magnetic) are not supported for Boot volumes

DevOps (7 decks)

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