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A company has several Amazon DynamoDB tables in an AWS Region. Each table has more than 100,000 records and was created with default table settings.
To reduce costs, the company needs to identify unused tables. However, the company must maintain the availability and current performance capability of the tables in case the company must use the tables in the future.
Which combination of steps will meet these requirements? (Select THREE.)
Suggested Answer: B, D, E
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27 comments · newest first
SU
Sunita Patel
10 days ago
B makes the most sense here because the tricky part is identifying unused tables from 1 month of consumption before adjusting capacity and storage class.
TE
Terry
E could help if we want to keep them but reduce costs.
FR
Francene
5 days ago
D is a good choice too. On-demand saves money for unused tables.
RI
Rikki
10 days ago
But if tables are unused, C makes sense. Lower costs immediately.
LO
Lorriane
15 days ago
Option A is also important. Throttle events indicate issues.
CO
Corinne
21 days ago
Agreed! B gives a clear picture of what's being consumed.
WH
Whitley
26 days ago
I think we should start with option B. It shows actual usage.
NE
Nenita
1 month ago
E could be a long-term solution for infrequent access tables.
GE
Georgeanna
1 month ago
D is smart too. On-demand mode saves costs if tables are unused.
VI
Vince
1 month ago
C is a good temporary measure. Keeps tables available.
FL
Flo
2 months ago
But what about cost? C seems risky. Setting RCUs to 1?
EV
Evette
2 months ago
Agreed! A and B help identify usage patterns.
ME
Melita
2 months ago
I think monitoring metrics is crucial. Option A and B make sense.
JO
Johna
2 months ago
Standard-IA is a smart move for infrequent tables!
VI
Vilma
2 months ago
Wait, can you really just set RCUs and WCUs to 1?
CH
Charlene
2 months ago
Changing to on-demand mode sounds risky for future performance.
TA
Tamera
3 months ago
Totally agree, that's the best way to see usage!
TY
Tyisha
3 months ago
Just graph the ConsumedReadCapacityUnits and ConsumedWriteCapacityUnits.
OL
Olen
3 months ago
Definitely agree with using CloudWatch metrics to identify unused tables.
VE
Veronika
3 months ago
Surprised that changing table class to Standard-IA is an option!
AN
Anglea
3 months ago
Isn't changing RCUs and WCUs to 1 risky? What if we need them?
AL
Alayna
3 months ago
I think changing to on-demand mode is a smart move!
ST
Stefanie
4 months ago
Just check the ConsumedReadCapacityUnits metric for a month.
GW
Gwen
4 months ago
I vaguely recall something about DynamoDB Standard-IA being a cost-saving measure, but I’m not entirely clear on when to apply it.
AN
Annelle
4 months ago
I practiced a similar question where we had to decide on capacity modes, and I feel like switching to on-demand mode could be a safe option for unused tables.
AN
Annice
4 months ago
I think changing the provisioned RCUs and WCUs to 1 is a good way to minimize costs for tables we might not use, but I wonder if that affects performance too much.
IL
Ilene
6 months ago
I remember we discussed using CloudWatch metrics to identify unused tables, but I'm not sure if it's better to look at ReadThrottleEvents or ConsumedCapacity metrics.