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. Which of below are predefined schemas?

choose 3

2 / 20

2. What is the purpose of the template0 database?

3 / 20

3. Users should not modify the template0 database

4 / 20

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

5 / 20

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

6 / 20

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

7 / 20

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

8 / 20

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

9 / 20

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

choose 3

10 / 20

10. Which of below are predefined schemas?

choose 2

11 / 20

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

12 / 20

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

13 / 20

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

Choose 2 option

14 / 20

14. The default Page size is 2k?

15 / 20

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

16 / 20

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

choose 2

17 / 20

17. Which fork is specific for unlogged tables?

18 / 20

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

19 / 20

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

20 / 20

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

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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 are valid Isolations Levels?

choose 2

2 / 10

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

3 / 10

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

4 / 10

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

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

8 / 10

8. A phantom read anomaly occurs when?

9 / 10

9. What is the default Isolation Level?

10 / 10

10. Lost updates are forbidden by the standard at all 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. If a transaction is read only which kind of Transaction ID is it allocated?

2 / 10

2. Rows of TOAST tables are handled in such a way that they are never update?

3 / 10

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

4 / 10

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

5 / 10

5. The page Special Space is located at the start of the page with highest address

6 / 10

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

7 / 10

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

8 / 10

8. CLOG contains how many bits for each transaction?

9 / 10

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

10 / 10

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

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