DBs

Question 1

Managed Relations Database

Answer 1

For Transactional applications
Aurora, RDS

Question 2

nonrelational DB

Answer 2

Internet Scale applications
Dyamo nsql

Question 3

Data Warehouse

Answer 3

analytics
Redshift

Question 4

InMemory Store

Answer 4

Cacheing and real-time workloads
Elasti Cache

Question 5

Time Series

Answer 5

For efficiently collecting, synthesizing, and deriving insights from time-series data
Timestream

Question 6

Ledger DBs

Answer 6

scalable, complete, and cryptographically verifiable record of transactions
Quantum

Question 7

Graph DBs

Answer 7

Highly Connected Data (Neptune)

Question 8

ACID

Answer 8

atomic, consistent, isolated, durable

Question 9

3,000 iops

Answer 9

General Purpose SSD (gp2)

Question 10

Magnetic Storage

Answer 10

Backward Compatibility

Question 11

Enhanced CloudWatch Monitoring

Answer 11

Anything less then 5 minute intervals

Question 12

Read and write throughput for a table with 5 read and write capacity units.

Answer 12

Perform strongly consistent reads of up to 20 KB per second (4 KB × 5 read capacity units).

Perform eventually consistent reads of up to 40 KB per second (twice as much read throughput).

Write up to 5 KB per second (1 KB × 5 write capacity units).

.

Question 13

RCU

Answer 13

Read Capacity Unit: 1 strongly consistent or 2 eventually consistent per 4KB

Question 14

WCU

Answer 14

Write Capacity Unit: 1 write per sec per KB

Question 15

Burst Capacity

Answer 15

reserved for bursts in write capacity

Question 16

Adaptive Capacity

Answer 16

reading and writing to hot partitions being thresholded