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. Tablespaces are used to define physical data layout?

2 / 20

2. Which of below are predefined schemas?

choose 3

3 / 20

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

4 / 20

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

5 / 20

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

6 / 20

6. What is the purpose of the template1 database?

7 / 20

7. How does Postgres know which schema to use if not specified?

8 / 20

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

9 / 20

9. Files are logically split into pages?

10 / 20

10. Each tablespaces can only be assigned for use by one database

11 / 20

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

12 / 20

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

13 / 20

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

choose 2

14 / 20

14. Which 3 databases exist directly after cluster initialization?

choose 3 options

15 / 20

15. Some System Catalog tables are common to all databases in the cluster?

16 / 20

16. What is another name for the postgres process?

17 / 20

17. Which of below are predefined schemas?

choose 2

18 / 20

18. What is the purpose of the template0 database?

19 / 20

19. What is the purpose of the visibility map?

20 / 20

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

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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. Which of the below are valid Isolations Levels?

choose 2

2 / 10

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

choose 3

3 / 10

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

4 / 10

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

5 / 10

5. What are some of database features we can use to avoid a non repeatable read?

Select more than 1 answer below:

6 / 10

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

7 / 10

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

8 / 10

8. Which parameters sets the database default isolation level?

9 / 10

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

10 / 10

10. The SQL standard specifies three isolation levels?

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

2 / 10

2. indexes do not use row versioning?

3 / 10

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

4 / 10

4. CLOG files are stored in which directory?

5 / 10

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

6 / 10

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

7 / 10

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

8 / 10

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

9 / 10

9. What does an Item Pointer contain?

choose 3

10 / 10

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

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