Amazon Dynamo DB price quiz












1















I’m learning AWS Certified Developer Associate 2018 Practice Quiz.




Question 1 "In DynamoDB, if you create a table and request 10 units of write capacity and 200 units of read capacity of provisioned throughput, how much would you be charged in US East (Northern Virginia) Region? "





  1. $ 0.05 per hour

  2. $ 0.10 per hour

  3. $ 0.03 per hour

  4. $ 0.15 per hour


My calculation is this.




$0.00065 × 10 + $0.00013 × 200 = $0.0325 per hour




But the answer is this.




$ 0.01 + (4 x $ 0.01) = $ 0.05 per hour "




What is “4”???



Knowledge Area:
http://aws.amazon.com/dynamodb/pricing/



I didn’t understand 😔
Please help me.
Thank you.










share|improve this question

























  • You should ask this to whomever wrote the question. I would also ask them "What is the $0.01"? I suggest you do not spend much time worrying about this question. You will never be quizzed on prices. You will be expected to understand the concepts of RCU and WCU, but you will never need to memorize magical numbers like prices.

    – John Rotenstein
    Nov 25 '18 at 0:10











  • @JohnRotenstein Oh my gosh... thank you very much.

    – kazumeat
    Nov 25 '18 at 0:39
















1















I’m learning AWS Certified Developer Associate 2018 Practice Quiz.




Question 1 "In DynamoDB, if you create a table and request 10 units of write capacity and 200 units of read capacity of provisioned throughput, how much would you be charged in US East (Northern Virginia) Region? "





  1. $ 0.05 per hour

  2. $ 0.10 per hour

  3. $ 0.03 per hour

  4. $ 0.15 per hour


My calculation is this.




$0.00065 × 10 + $0.00013 × 200 = $0.0325 per hour




But the answer is this.




$ 0.01 + (4 x $ 0.01) = $ 0.05 per hour "




What is “4”???



Knowledge Area:
http://aws.amazon.com/dynamodb/pricing/



I didn’t understand 😔
Please help me.
Thank you.










share|improve this question

























  • You should ask this to whomever wrote the question. I would also ask them "What is the $0.01"? I suggest you do not spend much time worrying about this question. You will never be quizzed on prices. You will be expected to understand the concepts of RCU and WCU, but you will never need to memorize magical numbers like prices.

    – John Rotenstein
    Nov 25 '18 at 0:10











  • @JohnRotenstein Oh my gosh... thank you very much.

    – kazumeat
    Nov 25 '18 at 0:39














1












1








1








I’m learning AWS Certified Developer Associate 2018 Practice Quiz.




Question 1 "In DynamoDB, if you create a table and request 10 units of write capacity and 200 units of read capacity of provisioned throughput, how much would you be charged in US East (Northern Virginia) Region? "





  1. $ 0.05 per hour

  2. $ 0.10 per hour

  3. $ 0.03 per hour

  4. $ 0.15 per hour


My calculation is this.




$0.00065 × 10 + $0.00013 × 200 = $0.0325 per hour




But the answer is this.




$ 0.01 + (4 x $ 0.01) = $ 0.05 per hour "




What is “4”???



Knowledge Area:
http://aws.amazon.com/dynamodb/pricing/



I didn’t understand 😔
Please help me.
Thank you.










share|improve this question
















I’m learning AWS Certified Developer Associate 2018 Practice Quiz.




Question 1 "In DynamoDB, if you create a table and request 10 units of write capacity and 200 units of read capacity of provisioned throughput, how much would you be charged in US East (Northern Virginia) Region? "





  1. $ 0.05 per hour

  2. $ 0.10 per hour

  3. $ 0.03 per hour

  4. $ 0.15 per hour


My calculation is this.




$0.00065 × 10 + $0.00013 × 200 = $0.0325 per hour




But the answer is this.




$ 0.01 + (4 x $ 0.01) = $ 0.05 per hour "




What is “4”???



Knowledge Area:
http://aws.amazon.com/dynamodb/pricing/



I didn’t understand 😔
Please help me.
Thank you.







amazon-dynamodb






share|improve this question















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edited Nov 24 '18 at 23:54







kazumeat

















asked Nov 24 '18 at 23:21









kazumeatkazumeat

83




83













  • You should ask this to whomever wrote the question. I would also ask them "What is the $0.01"? I suggest you do not spend much time worrying about this question. You will never be quizzed on prices. You will be expected to understand the concepts of RCU and WCU, but you will never need to memorize magical numbers like prices.

    – John Rotenstein
    Nov 25 '18 at 0:10











  • @JohnRotenstein Oh my gosh... thank you very much.

    – kazumeat
    Nov 25 '18 at 0:39



















  • You should ask this to whomever wrote the question. I would also ask them "What is the $0.01"? I suggest you do not spend much time worrying about this question. You will never be quizzed on prices. You will be expected to understand the concepts of RCU and WCU, but you will never need to memorize magical numbers like prices.

    – John Rotenstein
    Nov 25 '18 at 0:10











  • @JohnRotenstein Oh my gosh... thank you very much.

    – kazumeat
    Nov 25 '18 at 0:39

















You should ask this to whomever wrote the question. I would also ask them "What is the $0.01"? I suggest you do not spend much time worrying about this question. You will never be quizzed on prices. You will be expected to understand the concepts of RCU and WCU, but you will never need to memorize magical numbers like prices.

– John Rotenstein
Nov 25 '18 at 0:10





You should ask this to whomever wrote the question. I would also ask them "What is the $0.01"? I suggest you do not spend much time worrying about this question. You will never be quizzed on prices. You will be expected to understand the concepts of RCU and WCU, but you will never need to memorize magical numbers like prices.

– John Rotenstein
Nov 25 '18 at 0:10













@JohnRotenstein Oh my gosh... thank you very much.

– kazumeat
Nov 25 '18 at 0:39





@JohnRotenstein Oh my gosh... thank you very much.

– kazumeat
Nov 25 '18 at 0:39












1 Answer
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The question seems premised on obsolete information.



Previously, DynamoDB capacity was sold in blocks of 10 WCU and 50 RCU, each of which was $0.0065. (It may have been $0.01 several years ago, since AWS does sometimes decrease pricing when new technologies or efficiency gains permit it or this might be the result of rounding.) The 4 is 200 ÷ 50.






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  • Wow, thank you Michael! I totally understand.

    – kazumeat
    Nov 25 '18 at 0:56











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














The question seems premised on obsolete information.



Previously, DynamoDB capacity was sold in blocks of 10 WCU and 50 RCU, each of which was $0.0065. (It may have been $0.01 several years ago, since AWS does sometimes decrease pricing when new technologies or efficiency gains permit it or this might be the result of rounding.) The 4 is 200 ÷ 50.






share|improve this answer
























  • Wow, thank you Michael! I totally understand.

    – kazumeat
    Nov 25 '18 at 0:56
















1














The question seems premised on obsolete information.



Previously, DynamoDB capacity was sold in blocks of 10 WCU and 50 RCU, each of which was $0.0065. (It may have been $0.01 several years ago, since AWS does sometimes decrease pricing when new technologies or efficiency gains permit it or this might be the result of rounding.) The 4 is 200 ÷ 50.






share|improve this answer
























  • Wow, thank you Michael! I totally understand.

    – kazumeat
    Nov 25 '18 at 0:56














1












1








1







The question seems premised on obsolete information.



Previously, DynamoDB capacity was sold in blocks of 10 WCU and 50 RCU, each of which was $0.0065. (It may have been $0.01 several years ago, since AWS does sometimes decrease pricing when new technologies or efficiency gains permit it or this might be the result of rounding.) The 4 is 200 ÷ 50.






share|improve this answer













The question seems premised on obsolete information.



Previously, DynamoDB capacity was sold in blocks of 10 WCU and 50 RCU, each of which was $0.0065. (It may have been $0.01 several years ago, since AWS does sometimes decrease pricing when new technologies or efficiency gains permit it or this might be the result of rounding.) The 4 is 200 ÷ 50.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 25 '18 at 0:34









Michael - sqlbotMichael - sqlbot

92.9k13137200




92.9k13137200













  • Wow, thank you Michael! I totally understand.

    – kazumeat
    Nov 25 '18 at 0:56



















  • Wow, thank you Michael! I totally understand.

    – kazumeat
    Nov 25 '18 at 0:56

















Wow, thank you Michael! I totally understand.

– kazumeat
Nov 25 '18 at 0:56





Wow, thank you Michael! I totally understand.

– kazumeat
Nov 25 '18 at 0:56




















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