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

2 / 20

2. What is the process first launched at server start?

3 / 20

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

4 / 20

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

5 / 20

5. What is the purpose of the template0 database?

6 / 20

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

7 / 20

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

8 / 20

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

Choose 2 option

9 / 20

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

10 / 20

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

11 / 20

11. Which of below are predefined schemas?

choose 3

12 / 20

12. What 3 files/forks as a minimum make up a table on disk?

13 / 20

13. What is the purpose of wal writer?

14 / 20

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

15 / 20

15. Postgres uses a thread based process model?

16 / 20

16. What is the purpose of autovacuum?

17 / 20

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

18 / 20

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

choose 3

19 / 20

19. What is the point of the pg_global tablespace?

20 / 20

20. Which of below are predefined schemas?

choose 2

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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 statements will start a transaction as Read Repeatable?

2 / 10

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

3 / 10

3. What is the default Isolation Level?

4 / 10

4. Which of the below are valid Isolations Levels?

choose 2

5 / 10

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

6 / 10

6. Which parameters sets the database default isolation level?

7 / 10

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

8 / 10

8. A phantom read anomaly occurs when?

9 / 10

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

10 / 10

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

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. indexes do not use row versioning?

2 / 10

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

3 / 10

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

4 / 10

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

5 / 10

5. Information about subtransactions is stored under?

6 / 10

6. What does an Item Pointer contain?

choose 3

7 / 10

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

8 / 10

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

9 / 10

9. at any one time Postgres can have several versions of a row?

10 / 10

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

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0%