EC2_EBS

Question 1

Name the Instance Types

Answer 1

• General purpose
• Compute/Memory/Storage Optimized
• Accelerated Computing

Question 2

Name Placement Groups

Answer 2

Cluster Group
Spread Group
Partition Group

Question 3

Cluster Placement Group

Answer 3

Grouping of instances in the same AZ
Close physical proximity
Low-latency Network
Useful for High Performance Computing(HPC)

Question 4

Spread Placement Groups

Answer 4

• spreads physically across distinct hardware racks and AZs
• reduce risk of service failure
• no 2 instances will ever share physical hardware

Question 5

Partition Placement Groups

Answer 5

• put instances into partitions
• partitions can be physically seperated
• no 2 partitions whitin a placement group share the same rack thus isolating the impact of hardware failure

Question 6

Instance Pricing

Answer 6

• on-demand model(Hourly)
• reserve(Three-year term)
• spot-on
• on-demand capacity reservation

Question 7

On-Demand Instances

Answer 7

On-Demand Instances let you pay for compute capacity by the hour or
second (minimum of 60 seconds) with no long-term commitments.

Question 8

EBS Volume Types

Answer 8

EBS-Provosioned IOPS SSD
EBS General Purpose SSD
Throughput-Optimized HDD
Cold HDD

Question 9

EBS-Provisioned IOPS SSD

Answer 9

Intense IO
64,000 IOPS
Throughput : 1,000 MB/s

Question 10

EBS General Purpose SSD

Answer 10

acceptable low latency performance
IOPS/volume: 16,000

Question 11

Throughput-Optimized HDD

Answer 11

reduced cost with acceptable performance
log processing, Big Data Ops
IOPS/volume: 500
Throughput: 500 MB/s

Question 12

Cold HDD

Answer 12

large volume of data with infrequent access
IOPS/volume: 250

Question 13

EBS Features

Answer 13

• can be copied by creating a snapshot
• AMIs can be generated directly from EBS volumes attached to a running instance(the instance better to be down)
• Encryption

Question 14

Instance Store Volumes

Answer 14

• are SSDs conncted via NVMe(non-volatile memory express)
• the price included in the instance
• good for short-term deployment roles

Question 15

EC2 Security

Answer 15

• Security Groups
• IAM Roles
• NAT Devices
• Key Pairs

Question 16

EC2 Security Groups

Answer 16

• plays roles of Firewall
• Denies by Default
• Controls Traffic at the instance level

Question 17

Auto Scaling Options

Answer 17

Manual Scaling
Dynamic Scaling
Simple Scaling Policies
Step Scaling Policies
Target Tracking Policies
Scheduled Actions

Question 18

AWS Systems Manager

Answer 18

AWS Systems Manager is a management service offered by Amazon Web Services (AWS) that allows you to automate and manage your infrastructure at scale. It provides a unified interface for managing your AWS resources and on-premises systems.