DynamoDB MCQ Questions And Answers

DynamoDB MCQs : This section focuses on "Basics" of DynamoDB. These Multiple Choice Questions (MCQ) should be practiced to improve the DynamoDB skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. Amazon DynamoDB is a fully managed proprietary?

A. Centralised database
B. Commercial database
C. NoSQL database
D. Relational database

View Answer


2. Amazon DynamoDB Initial release date?

A. 2011
B. 2012
C. 2013
D. 2014

View Answer


3. How many types of primary keys does DynamoDB supports?

A. 2
B. 3
C. 4
D. 5

View Answer


4. How many types of secondary indexes does DynamoDB supports?

A. 2
B. 3
C. 4
D. 5

View Answer


5. Which index that has the same partition key as the base table, but a different sort key?

A. Global secondary index
B. Local secondary index
C. Both A and B
D. None of the above

View Answer


6. A read capacity unit is a single consistent read per second for items no larger than ?

A. 1KB
B. 2KB
C. 4KB
D. 8KB

View Answer


7. How many attributes does DynamoDB allows?

A. 5
B. 10
C. 15
D. 20

View Answer


8. Names must conform to a minimum of 3 characters in length, and a maximum of ?

A. 31
B. 63
C. 127
D. 255

View Answer


9. Expression strings have a _____ limit.

A. 1KB
B. 2KB
C. 4KB
D. 8KB

View Answer


10. Which key also known as the Composite Primary Key?

A. Partition Key
B. Sort Key
C. Both A and B
D. None of the above

View Answer


11. Which types represent a single value, and include number, string, binary, Boolean, and null?

A. Scalar
B. Document
C. Set
D. None of the above

View Answer


12. Maximum length of String data type is?

A. 200KB
B. 400KB
C. 600KB
D. 800KB

View Answer


13. In Action Data Types, which represents key table and index schema?

A. Capacity
B. AttributeDefinition
C. PutRequest
D. TableDescription

View Answer


14. In Action Data Types, which represents PutItem requests?

A. PutRequest
B. TableDescription
C. LocalSecondaryIndex
D. ProvisionedThroughput

View Answer


15. DynamoDB offers ________ low-level actions for data reading.

A. 1
B. 2
C. 3
D. 4

View Answer


16. DynamoDB uses partitions for data storage.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

View Answer


17. DynamoDB uses eventually consistent and strongly consistent reads to support dynamic application needs.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

View Answer


18. Which of the following are benefits of using Amazon DynamoDB?

A. It is scalable
B. It provides the users high throughput at very low latency.
C. It is durable and highly available
D. All of the above

View Answer


19. DynamoDB does not supports Null values.

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

View Answer


20. Does DynamoDB support in-place atomic updates?

A. TRUE
B. FALSE
C. Can be true or false
D. Can not say

View Answer





Discussion


* You must be logged in to add comment.