Postgres Quiz Archive

You have 200 seconds to answer 20 Random questions so think fast!

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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. Which fork is specific for unlogged tables?

2 / 20

2. Which fork contains the actual table data?

3 / 20

3. What is the purpose of the public schema?

4 / 20

4. What is the purpose of the postgres database?

5 / 20

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

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

7 / 20

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

8 / 20

8. System Catalog tables begin with which prefix?

9 / 20

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

10 / 20

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

11 / 20

11. Postgres uses a thread based process model?

12 / 20

12. TOAST tables reside in a seperate schema?

13 / 20

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

14 / 20

14. What is the purpose of autovacuum?

15 / 20

15. Users should not modify the template0 database

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

choose 3

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17. Which of below are predefined schemas?

choose 2

18 / 20

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

19 / 20

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

20 / 20

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

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

2 / 10

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

3 / 10

3. non-repeatable read anomaly occurs when?

4 / 10

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

5 / 10

5. Which of the below are valid Isolations Levels?

choose 2

6 / 10

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

7 / 10

7. Based on Snapshot Isolation use of MVCC which of the below are permitted?

choose 3

8 / 10

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

9 / 10

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

10 / 10

10. What is the default Isolation Level?

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

2 / 10

2. indexes do not use row versioning?

3 / 10

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

choose 2

4 / 10

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

5 / 10

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

6 / 10

6. virtual IDs exist only in PGDATA/pg_vxid when not cached?

7 / 10

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

8 / 10

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

9 / 10

9. What does an Item Pointer contain?

choose 3

10 / 10

10. Tuples can also be referred to as columns?

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