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AWS Certified Cloud Practitioner Study Guide With 500 Practice Test Questions: Foundational (CLF-C02) Exam > 8 - The Core Storage Services > Flashcards

8 - The Core Storage Services Flashcards

1
Q

What is the most valuable asset for many organizations?

A

Their data

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2
Q

What is Amazon’s flagship cloud storage service?

A

Simple Storage Service (S3)

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3
Q

What does S3 allow you to do?

A

Store and retrieve unlimited amounts of data

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4
Q

What is S3 Glacier used for?

A

Long-term archiving of infrequently accessed data

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5
Q

What does AWS Storage Gateway do?

A

Seamlessly moves data between on-premises servers and AWS S3

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6
Q

What is the purpose of the AWS Snow Family?

A

Physically move massive amounts of data to or from S3

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7
Q

What is an object in S3?

A

A file stored on disks in AWS data centers

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8
Q

What is the maximum size of an object in S3?

A

5 TB

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9
Q

What is the term used for the filename of an object in S3?

A

Key

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10
Q

What must a bucket name be in S3?

A

Globally unique and between 3 and 63 characters long

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11
Q

How are objects organized in S3?

A

In a flat filesystem within buckets

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12
Q

What happens when you create an S3 bucket?

A

You must assign it a globally unique name

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13
Q

What is the cost structure for S3?

A

Free for uploading data, charges apply for downloading and storage

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14
Q

What is durability in the context of S3?

A

The likelihood that an object will not be lost over a year

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15
Q

What is the durability percentage of the STANDARD storage class?

A

99.999999999%

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16
Q

What storage class is recommended for frequently accessed objects?

A

STANDARD

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17
Q

What is the availability percentage of the ONEZONE_IA storage class?

A

99.5%

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18
Q

What is GLACIER storage class designed for?

A

Long-term archiving of rarely accessed objects

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19
Q

What is the retrieval time for objects in GLACIER?

A

1 minute to 12 hours

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20
Q

What does the INTELLIGENT_TIERING storage class do?

A

Automatically moves objects to the most cost-effective storage tier

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21
Q

What are the three methods of controlling access to S3 objects?

A
  • Bucket policies
  • User policies
  • Bucket and object access control lists
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22
Q

What is a bucket policy?

A

A resource-based policy applied to a bucket to grant access

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23
Q

What is server-side encryption in S3?

A

S3 encrypts the object when created and decrypts it upon retrieval

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24
Q

What is client-side encryption in S3?

A

You encrypt the data before uploading it to S3

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25
What does versioning in S3 help protect against?
Accidental deletion or overwriting of objects
26
What is client-side encryption?
You encrypt the data prior to uploading it to S3. You must decrypt the object when you retrieve it from S3.
27
What happens if you lose the key used for client-side encryption?
You won’t be able to decrypt the object.
28
Why might organizations choose client-side encryption?
To ensure Amazon doesn’t have the ability to read their encrypted objects.
29
What is versioning in S3?
A feature that protects against accidentally deleting or overwriting file contents by creating new versions of objects.
30
What occurs if you upload an object with the same name as an existing object without versioning enabled?
The contents of the original object will get overwritten.
31
What happens when you delete an object in a bucket with versioning disabled?
S3 adds a delete marker to the object and hides it from the S3 service console view.
32
Is versioning enabled by default when you create a bucket?
No, versioning is disabled by default.
33
What are object lifecycle configurations?
Rules that help control costs by automatically moving objects to different storage classes or deleting them after a time.
34
What are transition actions in object lifecycle configurations?
Actions that move objects to a different storage class once they’ve reached a certain age.
35
What are expiration actions in object lifecycle configurations?
Actions that automatically delete objects after they reach a certain age.
36
What is S3 Glacier used for?
Long-term archiving of infrequently accessed data at a low cost.
37
What guarantees does Glacier provide?
99.999999999 percent durability over a given year.
38
What is an archive in Glacier?
A block of information that can store one or more files.
39
What is a vault in Glacier?
A region-specific container that stores archives.
40
What are the three retrieval options in Glacier?
* Expedited * Standard * Bulk
41
What is AWS Storage Gateway?
A service that connects existing on-premises servers to storage in the AWS cloud.
42
What protocols do file gateways use?
Network File System (NFS) and Server Message Block (SMB).
43
What are the two configurations of volume gateways?
* Stored Volumes * Cached Volumes
44
What does a tape gateway do?
Mimics traditional tape backup infrastructure and works with common backup applications.
45
What is the purpose of the AWS Snow Family?
To migrate large datasets to the cloud efficiently.
46
What is the smallest device in the AWS Snow Family?
Snowcone.
47
What is the maximum storage capacity of a Snowball device?
80 TB.
48
What security features does Snowball include?
* Rugged, tamper-resistant enclosure * Trusted Platform Module (TPM) chip * Two layers of encryption
49
What is the cost of expedited retrievals in Glacier per gigabyte?
$0.03 per gigabyte in the US East region.
50
Fill in the blank: Deleting a bucket will also delete all _______ contained in it.
objects
51
True or False: You can restore an EBS snapshot to an on-premises gateway storage volume.
True
52
What happens if you hold onto a Snowball device longer than 10 days?
You’ll be charged an extra $15 per day.
53
What is the range of size for an archive in Glacier?
1 byte to 40 TB.
54
What common use cases exist for Snowball?
* Migrating data from an office or data center to AWS * Quickly transferring a large amount of data to or from S3 * Distributing large volumes of content to customers and partners
55
What does AWS Snowball use for data encryption during transfer?
SSL encryption ## Footnote Snowball uses two layers of encryption: SSL for data in transit and AES 256-bit encryption for data at rest.
56
What is the primary encryption method used by Snowball for data at rest?
AES 256-bit encryption ## Footnote This encryption is enforced by the Snowball Client or S3 SDK Adapter.
57
What does AWS do with your data on Snowball before sending it to another customer?
AWS erases your data following NIST media sanitization standards ## Footnote This is outlined in NIST Special Publication 800-88.
58
What additional features does Snowball Edge offer compared to Snowball?
Local storage for S3 buckets, compute power for EC2 instances and Lambda functions, file server functionality ## Footnote Snowball Edge enhances Snowball's capabilities.
59
How much usable storage does the Storage Optimized Snowball Edge option provide?
Up to 80 TB ## Footnote It also includes 24 vCPUs and 32 GB of memory.
60
What is unique about the Compute Optimized with GPU Snowball Edge?
It includes an NVIDIA V100 Tensor Core GPU ## Footnote This makes it suitable for machine learning and high-performance computing.
61
What is AWS Snowmobile primarily used for?
Petabyte or exabyte data migrations ## Footnote Snowmobile is a 45-foot-long waterproof and tamper-resistant shipping container.
62
Which protocols does AWS Transfer Family support for data transfer?
FTP, SFTP, FTPS ## Footnote These protocols facilitate data migration into and out of S3 and EFS.
63
What are the four flavors of Amazon FSx?
FSx for Lustre, FSx for Windows File Server, FSx for OpenZFS, FSx for NetApp ONTAP ## Footnote Each flavor serves different file sharing needs.
64
What does AWS Elastic Disaster Recovery Service (AWS Elastic DRS) enable?
Point-in-time recovery of cloud-based applications ## Footnote It automates the backup process for source servers.
65
What is the process of bringing up replacement instances called in disaster recovery?
Failing over ## Footnote This process restores operations when source servers fail.
66
What can you do with AWS Elastic DRS to test your disaster recovery plan?
Create drill instances ## Footnote You can launch up to 100 instances during a drill to test recovery.
67
What is the difference between durability and availability in S3?
Durability is the likelihood of data loss, availability is the percentage of time data is accessible ## Footnote Durability ensures data integrity, while availability ensures access.
68
What are the six storage classes offered by S3?
STANDARD, ONEZONE_IA, INTELLIGENT_TIERING, GLACIER, GLACIER_IR, DEEP_ARCHIVE ## Footnote Each class offers different cost and availability features.
69
What are the options for transferring data into and out of S3?
S3 service console, AWS CLI, object URL, AWS Storage Gateway, Snowball, Snowball Edge ## Footnote Various methods facilitate data transfer based on needs.
70
When should bucket policies be used in S3?
To grant anonymous access to objects ## Footnote Bucket policies are effective for public objects like web pages.
71
What is the two-step process for retrieving data from Glacier?
Request an archive, then download the archive ## Footnote Retrieval options include Expedited, Standard, or Bulk.
72
What types of virtual machines does AWS Storage Gateway offer?
File gateways, volume gateways, tape gateways ## Footnote Each type offers different protocols for data access.

AWS Certified Cloud Practitioner Study Guide With 500 Practice Test Questions: Foundational (CLF-C02) Exam (13 decks)

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