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. What is another name for the postgres process?

2 / 20

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

3 / 20

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

Choose 2 option

4 / 20

4. Each Database has its own System Catalog?

5 / 20

5. Which of below are predefined schemas?

choose 2

6 / 20

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

7 / 20

7. Which of below are predefined schemas?

choose 3

8 / 20

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

9 / 20

9. System Catalog tables begin with which prefix?

10 / 20

10. What is a schema?

11 / 20

11. Users should not modify the template0 database

12 / 20

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

13 / 20

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

14 / 20

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

15 / 20

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

16 / 20

16. TOAST tables reside in a seperate schema?

17 / 20

17. What is the point of the pg_global tablespace?

18 / 20

18. Which fork is specific for unlogged tables?

19 / 20

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

20 / 20

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

choose 2

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

2 / 10

2. Which parameters sets the database default isolation level?

3 / 10

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

4 / 10

4. The SQL standard specifies three isolation levels?

5 / 10

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

6 / 10

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

7 / 10

7. Which of the below are valid Isolations Levels?

choose 2

8 / 10

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

choose 3

9 / 10

9. non-repeatable read anomaly occurs when?

10 / 10

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

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. CLOG files are stored in which directory?

2 / 10

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

3 / 10

3. Page free space can often become fragmented?

4 / 10

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

5 / 10

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

6 / 10

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

7 / 10

7. Tuples can also be referred to as columns?

8 / 10

8. indexes do not use row versioning?

9 / 10

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

10 / 10

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

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