AWS Magic Numbers

Question 1

API Gateway: Max requests-per-sec

Answer 1

API Gateway: Max requests-per-sec

10K

Question 2

API Gateway: Max concurrent requests

Answer 2

API Gateway: Max concurrent requests

5K

Question 3

RDS Backup Retention Period, Default

Answer 3

RDS Backup Retention Period, Default

7 days (if DB created in console)

Question 4

RDS Backup Retention Period, Allowed Range

Answer 4

RDS Backup Retention Period, Allowed Range

1-35 days (0 to disable)

Question 5

SQS, Delay Queue

Min?
Max?

Answer 5

SQS, Delay Queue

Min: 0
Max: 15 mins

Question 6

SQS, Message Retention:

Default?
Min?
Max?

Answer 6

SQS, Message Retention:

Default: 4 days
Min: 1 min
Max: 14 days

Question 7

SQS, Message Visibility:

Default?
Min?
Max?

Answer 7

SQS, Message Visibility:

Default: 30 secs
Min: 0
Max: 12 hours

Question 8

SQS, Message Size Limits

Standard?
Using Extended Client?

Answer 8

SQS, Message Size Limits

Standard: 256M
Using Extended Client: <= 2G

Question 9

CloudWatch Alarm

Standard Period Size?
Hi-Res Period Size?

Answer 9

CloudWatch Alarm

Standard Period Size: 1 min
Hi-Res Period Size: 10s or 30s

Question 10

CloudWatch Custom Metric Resolution

Standard?
Hi-res?

Answer 10

CloudWatch Custom Metric Resolution

Standard: 1 min
Hi-res: 1s

Question 11

CloudWatch Metric Retention Period, by period:

< 60s?
= 60s?
= 5 min?
= 1 hr?

Answer 11

CloudWatch Metric Retention Period, by period:

< 60s: 3 hrs
= 60s: 15 days
= 5 min: 63 days
= 1 hr: 15 months

Question 12

CloudWatch Metric Retention period EC/ELB2 Post-termination

Answer 12

CloudWatch Metric Retention period EC/ELB2 Post-termination

15 months

Question 13

S3 File Size

Min?
Max?

Answer 13

S3 File Size

Min: 0
Max: 5TB

Question 14

S3 Max Size of Single PUT

Answer 14

S3 Max Size of Single PUT

5G

Question 15

S3 Cutoff to consider MultiPart upload

Answer 15

S3 Cutoff to consider MultiPart upload

100M

Question 16

Lambda Timeout

Default?
Min?
Max?

Answer 16

Lambda Timeout

Default: 3s
Min: 1s
Max: 15 mins

Question 17

Lambda Max Env Vars

Answer 17

Lambda Max Env Vars

4K

Question 18

Lambda Deployment Package Size Max

Zipped?
Unzipped?

Answer 18

Lambda Deployment Package Size Max

Zipped: 50M
Unzipped: 250M

Question 19

Lambda, /tmp storage

Answer 19

Lambda, /tmp storage

512M

Question 20

Lambda Max Simultaneous Invocations

Answer 20

Lambda Max Simultaneous Invocations

1000

(within a region, can be upped via support request)

Question 21

Elastic Beanstalk Max ZIP/WAR File Size

Answer 21

Elastic Beanstalk Max ZIP/WAR File Size

512M

Question 22

KMS Max data block that can be encrypted

Answer 22

KMS Max data block that can be encrypted

4K

Question 23

SNS Max message size

Answer 23

SNS Max message size

256K

Question 24

Kinesis Streams Data Retention window

Min?
Max?

Answer 24

Kinesis Streams Data Retention window

Min: 1 day
Max: 7 days

Question 25

Kinesis Streams Max datablob size

Answer 25

Kinesis Streams Max datablob size

1M

Question 26

Kinesis Streams, per-shard Data Rate

Input?
Output?

Answer 26

Kinesis Streams, per-shard Data Rate

Input: 1MB/s
Output: 2MB/s

Question 27

Kinesis Streams Max PUTs per second

Answer 27

Kinesis Streams Max PUTs per second

1000/s

Question 28

CloudWatch Log Retention Period

Answer 28

indefinitely

Question 29

EC2 Monitoring Granularity

Standard?
Detailed?

Answer 29

EC2 Monitoring Granularity

Standard: 5 min
Detailed: 1 min