Postgres Quiz Archive

You have 200 seconds to answer 20 Random questions so think fast!

You will need to score 80% or over to pass!

Created by Paul Sammy

PostgreSQL 14 Internals Chapter 1

A quiz to test the knowledge of those reading and learning from Postgres 14 Internals book by Egor Rogov, covering topics in Chapter 1.

1 / 20

1. Postgres by default has built in connection pooling abilities?

2 / 20

2. What is another name for the postgres process?

3 / 20

3. What is a schema?

4 / 20

4. Each tablespaces can only be assigned for use by one database

5 / 20

5. What is the purpose of the public schema?

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6. Which of the below objects can be referred to as relations?

choose 3

7 / 20

7. TOAST tables reside in a seperate schema?

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8. A schema can belong to more than one database?

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9. System Catalog tables begin with which prefix?

10 / 20

10. Tablespaces are used to define physical data layout?

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11. How does Postgres know which schema to use if not specified?

12 / 20

12. Who is the Author of the Postgres 14 Internals book?

13 / 20

13. When PostgreSQL is running what can it be referred to as?

Choose 2 option

14 / 20

14. What is the name of the mechanism used to store a row bigger than a page size?

15 / 20

15. Which fork keeps track of available space within pages?

16 / 20

16. What command is used to create the Postgres cluster?

17 / 20

17. Some System Catalog tables are common to all databases in the cluster?

18 / 20

18. Users should not modify the template0 database

19 / 20

19. What is the name of the 2 default tablespaces created after initialization?

choose 2

20 / 20

20. What is the purpose of the template0 database?

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Created by Paul Sammy

PostgreSQL 14 Internals Chapter 2

A quiz to test the knowledge of those reading and learning from Postgres 14 Internals book by Egor Rogov, covering topics in Chapter 2.

1 / 10

1. The SQL standard specifies three isolation levels?

2 / 10

2. What is the default Isolation Level?

3 / 10

3. Data Consistency is best handled at the application layer rather than at the database layer?

4 / 10

4. Which isolation level in theory could mean an application does not have to consider isolation anomalies?

5 / 10

5. Which parameters sets the database default isolation level?

6 / 10

6. Which of the below are valid Isolations Levels?

choose 2

7 / 10

7. which of the below statements will start a transaction as Read Repeatable?

8 / 10

8. Which of the below would best describe a dirty read?

9 / 10

9. At any moment the database system can contain several versions of one and the same row?

10 / 10

10. Lost updates are forbidden by the standard at all isolation levels?

Your score is

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Created by Paul Sammy

PostgreSQL 14 Internals Chapter 3

A quiz to test the knowledge of those reading and learning from Postgres 14 Internals book by Egor Rogov, covering topics in Chapter 3.

1 / 10

1. Page header sizes can be easily displayed using the <choose from answers> extension

2 / 10

2. Postgres table physical data files are always cross compatible across platforms?

3 / 10

3. When a row is created, its xmin value is set to the transaction ID of which command?

4 / 10

4. The page header is located in the highest address?

5 / 10

5. Which of the below are true about a Pages Item Pointer?

6 / 10

6. Rows of TOAST tables are handled in such a way that they are never update?

7 / 10

7. UPDATE can be regarded as which 2 separate operations?

8 / 10

8. The page Special Space is located at the start of the page with highest address

9 / 10

9. A page along with its tuples is read into the buffer cache with compression transformations to enhance cache efficiency?

10 / 10

10. CLOG Pages are never cached in memory?

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