EC2

Question 1

EC2

Answer 1

Amazon Elastic Compute Could

Question 2

On demand

Answer 2

by hour and second and depends if its linux or windows(by the hour)

Question 3

Reserved Instance

Answer 3

contracted instance 1 to 3 years. discount is given on hourly charge

Question 4

spot

Answer 4

bid a price for instance capacity.

Question 5

Dedicated host

Answer 5

physical EC2 server dedicated host. can use exciting server-bound software licenses

Question 6

use case for On Demand

Answer 6

perfect for low cost and flexible amazon EC2

short term or unpredictable work load

or new amazon ec2 applications

Question 7

use case for reserved instance

Answer 7

up front cost could be great for steady state and predictable usage.

• standard RI up to 75% off on demand
• convertible RI up to 54% off on demand - capability to change the attributes of RI as long as exchange results in the creation of reserved instances of equal or greater value
• schedule reserved instances

Question 8

use case for spot instances

Answer 8

application that have flexibility start and end times

or only feasible at very low compute prices

urgent need with large amount of compute.

Question 9

use case for Dedicated host

Answer 9

regulatory requirement that may not use multi tenant virtualization.

can be purchased on demand (hourly)

can be purchased on reservation 70% off on demand price

Question 10

what are the EC2 Instance Types

Answer 10

F1 -FPGA
I3 - IOPs
G3 - Graphics
H1 - High Disk Throughput
T2 - cheap general purpose (think T2 Micro)
D2 - Density
R4 - RAM
M5 - amin choice for general purpose apps
C5- compute
P3 - graphics (think pics
X1 - extreme Memory

Question 11

What is EBS

Answer 11

Elastic storage volumes. Storage volumes (virtual dist) attached to EC2

it spread across the availability zone (if one dies you would be fine).

Root device volume is on windows.

Question 12

EBS volume types

SSD

Answer 12

General purpose SSD (GP2)
-general purpose balances both price and performance.
0ratio for 3 IOPS per GB with up to 10,000 IOPS and ability to burst up to 3000 IOPS for volumes at 3334 Gib and above

Provisioned IOPS SSD(IO1)

• Designed for I/O intensive application such as large relational or noSQL DB
• pervision up to 20,000 IOPs per volumes

Question 13

EBS volume types

magnetic storage volumes

Answer 13

through Optimized HDD(ST1)

• big data
• data warehouses
• long processing
• cannot be a boot volume (could not be a C drive)

cold HDD (SC1)

• lowest cost storage for infrequent accessed work load
• file server
• cannot be a boot volume

Magnetic (standard)

• lowest cost per gigabyte for all EBS volumes types that is bootable.
• legacy but could use it
• ideal for work loads that data is accessed infrequently (test and dev environments)