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. TOAST tables reside in a seperate schema?

2 / 20

2. Postgres uses a thread based process model?

3 / 20

3. What is the point of the pg_global tablespace?

4 / 20

4. What is another name for the postgres process?

5 / 20

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

6 / 20

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

7 / 20

7. What is the default standard size for a fork file?

8 / 20

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

9 / 20

9. What is the purpose of the template1 database?

10 / 20

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

11 / 20

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

12 / 20

12. Which fork contains the actual table data?

13 / 20

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

choose 2

14 / 20

14. System Catalog tables begin with which prefix?

15 / 20

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

16 / 20

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

17 / 20

17. Which of below are predefined schemas?

choose 2

18 / 20

18. What is the purpose of the public schema?

19 / 20

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

20 / 20

20. The pg_default tablespace should never be used to create user tables?

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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. non-repeatable read anomaly occurs when?

2 / 10

2. Which of the below are valid Isolations Levels?

choose 2

3 / 10

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

4 / 10

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

5 / 10

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

6 / 10

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

7 / 10

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

8 / 10

8. Which parameters sets the database default isolation level?

9 / 10

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

10 / 10

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

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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. Tuples can also be referred to as columns?

2 / 10

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

3 / 10

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

4 / 10

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

5 / 10

5. a transaction containing a savepoint is will still be considered as only a single transaction?

6 / 10

6. CLOG files are stored in which directory?

7 / 10

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

8 / 10

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

9 / 10

9. CLOG Pages are never cached in memory?

10 / 10

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

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