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 the name of the system catalog table for relations?

2 / 20

2. The default Page size is 2k?

3 / 20

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

4 / 20

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

5 / 20

5. What is the purpose of the postgres database?

6 / 20

6. Which 3 databases exist directly after cluster initialization?

choose 3 options

7 / 20

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

8 / 20

8. What is the point of the pg_global tablespace?

9 / 20

9. What is the purpose of autovacuum?

10 / 20

10. Postgres uses a thread based process model?

11 / 20

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

12 / 20

12. How many files or forks on disk will a 10Mb table with no index have?

13 / 20

13. Which fork contains the actual table data?

14 / 20

14. System Catalog tables begin with which prefix?

15 / 20

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

16 / 20

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

17 / 20

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

18 / 20

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

19 / 20

19. What is the purpose of the template0 database?

20 / 20

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

Choose 2 option

Your score is

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. A phantom read anomaly occurs when?

2 / 10

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

Select more than 1 answer below:

3 / 10

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

4 / 10

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

5 / 10

5. Which of the below are valid Isolations Levels?

choose 2

6 / 10

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

choose 3

7 / 10

7. Which parameters sets the database default isolation level?

8 / 10

8. What is the default Isolation Level?

9 / 10

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

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

2 / 10

2. CLOG files are stored in which directory?

3 / 10

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

4 / 10

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

choose 2

5 / 10

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

6 / 10

6. Tuples can also be referred to as columns?

7 / 10

7. To identify different versions of one and the same row, PostgreSQL marks each of them with which two value?

8 / 10

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

9 / 10

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

10 / 10

10. Information about subtransactions is stored under?

Your score is

0%