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. What is the point of the pg_global tablespace?

2 / 20

2. What is another name for the postgres process?

3 / 20

3. Tablespaces can be used to segregate data based on performance needs?

4 / 20

4. Which of below are predefined schemas?

choose 2

5 / 20

5. Postgres server spawns a new backend session for each connection?

6 / 20

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

7 / 20

7. TOAST tables reside in a seperate schema?

8 / 20

8. pg_catalog schema is used to store system catalog tables?

9 / 20

9. Tablespaces are used to define physical data layout?

10 / 20

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

11 / 20

11. The information_schema schema provides information on Postgres release notes?

12 / 20

12. What is the name of the system catalog table for relations?

13 / 20

13. What is the purpose of wal writer?

14 / 20

14. Which fork contains the actual table data?

15 / 20

15. The default Page size is 2k?

16 / 20

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

17 / 20

17. Which of below are predefined schemas?

choose 3

18 / 20

18. How many rows in a page does Postgres aim to have before considering TOAST?

19 / 20

19. Which fork is specific for unlogged tables?

20 / 20

20. What is the purpose of the postgres database?

Your score is

0%

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. Which of the below are valid Isolations Levels?

choose 2

2 / 10

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

3 / 10

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

4 / 10

4. The more locks a transaction acquires, the better it is isolated from other transactions?

5 / 10

5. The SQL standard specifies three isolation levels?

6 / 10

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

7 / 10

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

8 / 10

8. non-repeatable read anomaly occurs when?

9 / 10

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

10 / 10

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

Your score is

0%

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

2 / 10

2. CLOG Pages are never cached in memory?

3 / 10

3. indexes do not use row versioning?

4 / 10

4. status of a subtransaction is written into CLOG?

5 / 10

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

6 / 10

6. Which function can we use to find the current transaction ID?

7 / 10

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

8 / 10

8. To identify different versions of one and the same row, PostgreSQL marks each of them with which two value?

9 / 10

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

choose 2

10 / 10

10. Page free space can often become fragmented?

Your score is

0%