Practice Performance Optimization For Dynamodb (5.4.4) - Chapter 5: Deep Dive into Database Services

Practice: Performance Optimization for DynamoDB

Lesson 5.4.4Deep Dive into Database Services

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8 questions

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5 cards from this section. Quick, good the night before a test.
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6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a partition key in DynamoDB?
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Think about how items are retrieved in a table.
Question 2.
What does Auto Scaling in DynamoDB do?
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Consider high and low traffic scenarios.
3Question 3.
What action does Auto Scaling perform in DynamoDB?
- Manually adjusts capacity
- Automatically scales capacity
- No action taken
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Think about how the database can react to increased user load.
4Question 4.
True or False: A poorly designed partition key can lead to hotspots.
- True
- False
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Consider what happens in a traffic jam scenario.
Question 5.
You are designing a hospital patient management system using DynamoDB. Discuss how you would choose your partition keys and why, considering patient load and access patterns.
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Consider how records should be grouped together for efficiency.
Question 6.
Analyze a case where a company experiences throttling during peak hours. They are currently using parallel scans extensively. What advice would you give to improve their situation?
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Think about balancing load to avoid saturation.

4 more questions in this section. Enroll free to practise them all.