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

3 / 20

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

choose 3

4 / 20

4. Which fork is specific for unlogged tables?

5 / 20

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

6 / 20

6. What is the purpose of the template1 database?

7 / 20

7. What is the name of the catalog that stores metadata for all cluster objects?

8 / 20

8. A single Postgres Instance can server only one database?

9 / 20

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

10 / 20

10. Which 3 databases exist directly after cluster initialization?

choose 3 options

11 / 20

11. What is the purpose of the postgres database?

12 / 20

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

13 / 20

13. A Postgres cluster consists of 2 or more physical servers accessing one Postgres Instance?

14 / 20

14. Tablespaces are used to define physical data layout?

15 / 20

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

16 / 20

16. The default Page size is 2k?

17 / 20

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

18 / 20

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

19 / 20

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

20 / 20

20. What is the purpose of the template0 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. Lost updates are forbidden by the standard at all isolation levels?

2 / 10

2. The SQL standard specifies three isolation levels?

3 / 10

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

4 / 10

4. non-repeatable read anomaly occurs when?

5 / 10

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

6 / 10

6. Which parameters sets the database default isolation level?

7 / 10

7. What is the default Isolation Level?

8 / 10

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

9 / 10

9. A phantom read anomaly occurs when?

10 / 10

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

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. Information about subtransactions is stored under?

2 / 10

2. Indexes values also support multi versioning with several versions of an index value existing at any point in time?

3 / 10

3. Which 2 items does a Virtual XID consist of?

4 / 10

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

5 / 10

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

6 / 10

6. The page header stores checksum and the sizes of the other parts of the page?

7 / 10

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

8 / 10

8. indexes do not use row versioning?

9 / 10

9. What does an Item Pointer contain?

choose 3

10 / 10

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

Your score is

0%