Network - VPC - Enhanced Networking

Question 1

What are enhanced networking features?

Answer 1

used for high performance use cases; uses a SR-IOV to deliver higher performance than traditional network interfaces

Question 2

What are some of the different interface option dependant upon AMI?

Answer 2

intel 82599 VF interface = 10 Gbps

Elastic Network adapter = 25 Gbps

Question 3

What is a placement group?

Answer 3

Gives you the ability place EC2 instances on specific hardware in a way to meet needs of workload

Question 4

What is a clustered placement group?

Answer 4

Instances are placed in low-latency group within a single AZ; new low network latency and high network throughput

Question 5

What are the pros and cons of clustered placement groups?

Answer 5

get the most out of enhanced networking instances; finite capacity and recommend all you might need up front

Question 6

What is a spread placement group?

Answer 6

instances are spread across underlaying hardware; reduces risks of simultaneous failure if underlying hardware fails;

Question 7

What are the pros and cons of spread placement groups?

Answer 7

can span multiple AZs; max of 7 instances per group per AZ

Question 8

What is a partition placement group?

Answer 8

instances are grouped into partitions and spread across racks; the evolution of spread placement groups

Question 9

When is it good to use partition placement groups?

Answer 9

reduce risk of correlated hardware failure for multi-instance workloads.

Question 10

What are the pros and cons of partition placement groups

Answer 10

better for larger distributed workloads than spread; not supposed for dedicated hosts