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AWS Flashcards

1
Q

What is an Availability Zone?

A

An availability Zone is comprised of one or more data centers in a discreet geographical area that are fairly close together.

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2
Q

What is a region?

A

A region is comprised of 2 or more availability zones.

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3
Q

IAM - Users

A

End Users such as people, employees of an organization, etc.

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4
Q

IAM - Groups

A

A collection of users. Each user in a=the group will inherit the permissions of the group.

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5
Q

IAM - Policies

A

Polices are mode =up of documents, called Policy documents. These documents are in a format called JSON and they giver persisions as to what a User/Group/Role is able to do.

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6
Q

IAM - Roles

A

You create roles and then assign them to AWS. Resources. Could be used for 1 AWS service to use another AWS service.

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7
Q

IAM - Access Key ID

A

This is just like a username for programmatic access.

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8
Q

IAM - Secret Access Key

A

The actual password used to programmatically

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9
Q

IAM Scope

A

IAM is universal and transcends all zones.

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10
Q

New Users Permissions

A

New Users are created with no permissions

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11
Q

S3 Basic File Max Size

A

Files can be from 0 Bytes to 5TB

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12
Q

S3 Maximum Storage

A

Storage in S3 is unlimited

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13
Q

Is S3 Object-based or Block Based

A

S3 is Object-based storage.

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14
Q

S3 NameSpace

A

S3 is universal name space and must be unique globally. https://s3-[Region].amazonaws.com[unique_name]

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15
Q

S3 Return Code

A

HTTP 200 code is return if upload was successful

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16
Q

S3 is object-based which means

A
  1. Key - This is simply the name of the object
  2. Value - This is simply the data and is made up of a sequence of bytes
  3. Version ID (Important for Version control)
  4. Metadata - information about the data you are storing
  5. Subresources - ACLs and Torrent.
17
Q

What is S3s data consistency model?

A

Read after Write consistency for PUTS of new Objects;
Eventual Consistency for overwrite PUTS and DELETES (can take some time to propogate)

This all means that new files are able to be read immediately; while existing files that or overwriten, deleted or updated may result in the older file being obtained for a short period of time.

18
Q

S3 - What is the Durability of S3 Storage

A

11 * 9s.

19
Q

S3 has what features.

A
  1. Tiered Storage availability
  2. Lifecyclte Management
  3. Verisioning
  4. Encryption
  5. MFA Delete
  6. Secure your data with ACLs and Bucket Polices
20
Q

S3 Storage Classes - Standard Details

A

99.99% availability 11x9s durability, storred redundantly acrossed mu ltiple

21
Q

What are the S3 Storage Classes

A
  1. S3 Standard
  2. S3 - IA (Infrequeunctlyh accessed) Lower fee that S3 but you are charged a retrieval fee.
  3. S3 One Zone -= IA - where you want a lower cost option for infrequently accessed data , but do not require the multiple Availbility Zones
  4. S3 - Intelligent Tiering - Designed to optimize costs by automatically moving data to the most cost-effective access tier, w/o performance impac t or operational overhead.
22
Q

What are the S3 Storage Classes

A
  1. S3 Standard
  2. S3 - IA (Infrequeunctlyh accessed) Lower fee that S3 but you are charged a retrieval fee.
  3. S3 One Zone -= IA - where you want a lower cost option for infrequently accessed data , but do not require the multiple Availbility Zones
  4. S3 - Intelligent Tiering - Uses ML Designed to optimize costs by automatically moving data to the most cost-effective access tier, w/o performance impac t or operational overhead.
  5. Glacier - Is secure durable low-cost storage class ofr data archiving. Retreival times are configuratble fr om minutes to hours.
  6. Glacier Deep Archive - Lowest cost storage,
23
Q

S3 - Billing what are the wayus

A
  1. Storage
  2. # of Requests
  3. Storage Managemetnt Pricing
  4. Data Transfer Pricing
  5. Transfer Acceleration - This is effectively cloudfront.
  6. Cross-region replication
24
Q

S3 - Cross Region Replication Requirements

A

Version must be enabled on both the source and destination.
2. Regions must be unique
Files in an existing budget are not replicated automatically
all subsequent fupda

25
Q

CloudFront Key Terms

A

Edge Location - Location were content will be cached which is separate
Origin - The origin of the files whether that is an S3 file or something else
Distribution - Name given to the CDN or else a distribution.

26
Q

Snowball Sizing

A

50TB or 80Tbs

100TBs for Snowball Edge which includes compute and storage.

27
Q

Storage Gateway

A

It’s either a vritual or physical
1. Can be a file Gateway (NFS & SMB)
2. Volume Gateway (iSCSI)
3.

28
Q

Storage Gateway - File Gateway

A

Files are stored as objects in your S3 buckets, access through an NFS mountpoint.

Personal AWS (4 decks)

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