2.0 - Storage, Networking, and Databases

Question 1

EBS stands for…

Answer 1

Elastic Block Store - storage for directly-attached EC2 systems

Question 2

Um…ERP?

Answer 2

Enterprise Resource Planning

Question 3

CRM stands for…

Answer 3

Customer Relationship Management

Question 4

EFS stands for…

Answer 4

Elastic File System - scalable across multiple EC2 instances

Question 5

Instance Stores differ from EFS how?

Answer 5

Instance Stores are temporary, but offer high I/O and come at no cost with an EC2 instance

Question 6

S3 stands for…

Answer 6

Simple Storage Service, universally accessible

Question 7

Standard, Intelligent-Tiering, Standard-Infrequent Access, One Zone-Infrequent Access, Glacier Instant, Glacier Flexible, and Glacier Deep Archive are all types of…

Answer 7

S3 storage classes

Question 8

True or false: Standard-Infrequent Access has a retrieval fee.

Answer 8

True

Question 9

What feature allows you to move objects in an S3 bucket from one storage class to another?

Answer 9

Lifecycle policy

Question 10

True or false: S3 bucket names must be globally unique.

Answer 10

True

Question 11

Versioning is…

Answer 11

the ability to revert to a previous version of an object in an S3 bucket

Question 12

FSx is…

Answer 12

Fully managed Windows file system

Question 13

What happens to data in an EBS if its companion EC2 instance is stopped?

Answer 13

The data remains intact

Question 14

EBS comes in two flavors:

Answer 14

SSD (faster, more expensive, high IOPS)

HDD (slower, cheaper, higher throughput)

Question 15

EBS SSD comes in two flavors:

Answer 15

General Purpose SSD (gp3, gp2, 16k max IOPS, no multi-attach)

Provisioned IOPS SSD (io2, io1, 64k-256k IOPS, multi-attach supported)

Question 16

io2 or io1 max IOPS is…

Answer 16

64k

Question 17

io2 block express max IOPS is…

Answer 17

256k

Question 18

EBS HDD comes in two flavors:

Answer 18

Throughput Optimized HDD (st1, 500 max IOPS, 500 MiB/s max throughput)

Cold HDD Volume (sc1, lowest storage cost, 250 max IOPS, 250 MiB/s max throughput)

Question 19

True or false: EBS HDD supports multi-attach.

Answer 19

False

Question 20

What does Storage Gateway do?

Answer 20

Connects on-prem databases to AWS cloud infrastructure - a hybrid storage service.

Question 21

What Storage Gateway type is used for storing data in cloud-native formats?

Answer 21

S3 File Gateway

Question 22

What Storage Gateway type can be either block storage volumes, or cached volumes?

Answer 22

Volume Gateway

Question 23

What does the Storage Gateway type “Tape Gateway” do?

Answer 23

Provides archiving functions

Question 24

What does the Storage Gateway type “FSx File Gateway” do?

Answer 24

Extends on-prem Windows file systems to AWS

Question 25

What is a CDN?

Answer 25

Content Delivery Network

Question 26

What is AWS's implementation of a CDN?

Answer 26

CloudFront

Question 27

What is an Edge Location?

Answer 27

Data center nearest the user requesting content

Question 28

What is AWS Global Accelerator?

Answer 28

routing optimization, essentially

Question 29

If you have a global user base, high-traffic events, and/or multi-region applications, what tool would be best to use?

Answer 29

Global Accelerator

Question 30

What is a VPC?

Answer 30

Virtual Private Cloud - your own cloud within AWS's cloud

Question 31

What are the similarities/differences between security groups and NACLs?

Answer 31

Security groups are more granular, and stateful. NACLs are broader and stateless. Both will filter traffic based on source/dest IP or port (or ranges of either).

Question 32

What is AWS Direct Connect?

Answer 32

a private connection (physical?) to your VPC

Question 33

What is DynamoDB?

Answer 33

the NoSQL service

Question 34

Where is content stored in an In-Memory Database?

Answer 34

The computer's RAM

Question 35

What are two AWS implementations of in-memory databases?

Answer 35

1) ElastiCache (in-memory data store and cache service) 2) MemoryDB for Redis (in-memory DB)

Question 36

What is Amazon Neptune?

Answer 36

a graph database

Question 37

In database migration, hetero/homogeneous migrations refers to...

Answer 37

Using different/same database management systems

Question 38

The AWS Schema Conversion Tool (SCT) is used in...

Answer 38

database migration

Question 39

True or false: RAM-based MemoryDB for Redis automatically replicates across multiple AZs.

Answer 39

True

Question 40

An RDS organizes data into...

Answer 40

rows and columns