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 server spawns a new backend session for each connection?

2 / 20

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

3 / 20

3. What column in system catalogs servers as the Primary Key

4 / 20

4. If we create a new tablespace which directory will symbolic links be created from?

5 / 20

5. Which 3 databases exist directly after cluster initialization?

choose 3 options

6 / 20

6. Files are logically split into pages?

7 / 20

7. To be able to restore data consistency, Postgres maintains

8 / 20

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

9 / 20

9. System Catalog tables begin with which prefix?

10 / 20

10. It is the postmasters job to listener for incoming connections?

11 / 20

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

12 / 20

12. What is the name of the directory that contains the files related to the Postgres cluster?

13 / 20

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

choose 2

14 / 20

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

15 / 20

15. Which of below are predefined schemas?

choose 2

16 / 20

16. To understand each other, a client and a server must use one and the same interfacing protocol?

17 / 20

17. The default Page size is 2k?

18 / 20

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

19 / 20

19. What is the purpose of wal writer?

20 / 20

20. What is the purpose of the template1 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. Data Consistency is best handled at the application layer rather than at the database layer?

2 / 10

2. What is the default Isolation Level?

3 / 10

3. Which of the below are valid Isolations Levels?

choose 2

4 / 10

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

5 / 10

5. The SQL standard specifies three isolation levels?

6 / 10

6. What is the acronym used for the attributes that ensure Data consistency, integrity and durability?

7 / 10

7. Which parameters sets the database default isolation level?

8 / 10

8. Snapshot isolation is preferred but increases the number of required locks?

9 / 10

9. non-repeatable read anomaly occurs when?

10 / 10

10. A phantom read anomaly occurs when?

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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. When a transaction is committed Postgres uses a special <replace with answer> structure?

2 / 10

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

3 / 10

3. indexes do not use row versioning?

4 / 10

4. What does an Item Pointer contain?

choose 3

5 / 10

5. status of a subtransaction is written into CLOG?

6 / 10

6. index row headers like table row headers contain xmin and xmax fields?

7 / 10

7. In Postgres, tables are often referred to as which of the below?

8 / 10

8. If a transaction aborts, all page changes are reverted(rolled back) in place?

9 / 10

9. Each page has a layer that usually consists of?

choose 2

10 / 10

10. Which 2 of the below represent transaction IDs used for row versioning?

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