EC2 - EC2 101 Part 2 Flashcards Preview

A Cloud Guru: AWS Solutions Architect-Associate Exam > EC2 - EC2 101 Part 2 > Flashcards

Flashcards in EC2 - EC2 101 Part 2 Deck (15)
Loading flashcards...
1
Q

What is EBS?

A

EBS allows you to create storage volumes and attach them to EC2 instances.

2
Q

Once a volume is attached…

A

…you can create a file system on top of these volumes, run a database, or use them in any other way you would use a block device

3
Q

EBS volumes are placed…

A

…in a specific AZ, where they are automatically replicated to protect you from the failure of a single component

4
Q

single component?

A

storage array

5
Q

EBS volume types

A
General Purpose SSD (GP2)
Provisioned IOPS SSD (IO1)
Throughput Optimized HDD (ST1)
Cold HDD (SC1)
Magnetic (Standard)
6
Q

General Purpose SSD (GP2)

A

General purpose, balances both price and performance

Ratio of 3 IOPS per GB with up to 10K IOPS and the ability to burst up to 3000 IOPS for extended periods of time for volumes under 1 Gib

7
Q

Provisioned IOPS SSD (IO1)

A

Designed for I/O intensive apps such as large relational or NoSQL databases

Use if you need more than 10K IOPS

Can provision up to 20K IOPS per volume

Highest-performance SSD volume designed for mission-critical applications

8
Q

Throughput Optimized HDD (ST1)

A
Big data
Data warehousing
Log processing
Sequential data
Cannot be a boot volume
9
Q

Cold HDD (SC1)

A

Lowest cost storage for infrequently accessed workloads
File Server
Cannot be boot volumes

10
Q

Magnetic (Standard)

A

Lowest cost per GB of all EBS volumes types that is bootable.
Ideal for workloads where data is accessed infrequently, and apps where the lowest storage cost is important

11
Q

Can you mount 1 EBS volume to multiple EC2 instances?

A

No, use EFS instead

12
Q

General Purpose SSD (GP2) Use Cases

A
  • Recommended for most workloads
  • System boot volumes
  • Virtual desktops
  • Low-latency interactive apps
  • Development and test environments
13
Q

Provisioned IOPS SSD (IO1) Use Cases

A

-Critical business applications that require sustained IOPS performance, or more than 10,000 IOPS or 160 MiB/s of throughput per volume
-Large database workloads, such as:
MongoDB
Cassandra
Microsoft SQL Server
MySQL
PostgreSQL
Oracle

14
Q

Throughput Optimized HDD (ST1) Use Cases

A
  • Streaming workloads requiring consistent, fast throughput at a low price
  • Big data
  • Data warehouses
  • Log processing
  • Cannot be a boot volume
15
Q

Cold HDD (SC1) Use Cases

A
  • Throughput-oriented storage for large volumes of data that is infrequently accessed
  • Scenarios where the lowest storage cost is important
  • Cannot be a boot volume

Decks in A Cloud Guru: AWS Solutions Architect-Associate Exam Class (56):