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

2 / 20

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

3 / 20

3. Users should not modify the template0 database

4 / 20

4. Files are logically split into pages?

5 / 20

5. What is another name for the postgres process?

6 / 20

6. Which fork contains the actual table data?

7 / 20

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

Choose 2 option

8 / 20

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

9 / 20

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

choose 2

10 / 20

10. What 3 files/forks as a minimum make up a table on disk?

11 / 20

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

12 / 20

12. What is a schema?

13 / 20

13. System Catalog tables begin with which prefix?

14 / 20

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

15 / 20

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

16 / 20

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

17 / 20

17. What is the purpose of the visibility map?

18 / 20

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

19 / 20

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

20 / 20

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

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

2 / 10

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

3 / 10

3. A phantom read anomaly occurs when?

4 / 10

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

5 / 10

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

6 / 10

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

7 / 10

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

8 / 10

8. The SQL standard specifies three isolation levels?

9 / 10

9. non-repeatable read anomaly occurs when?

10 / 10

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

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 Pages are never cached in memory?

2 / 10

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

3 / 10

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

4 / 10

4. indexes do not use row versioning?

5 / 10

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

choose 2

6 / 10

6. Information about subtransactions is stored under?

7 / 10

7. Tuples can also be referred to as columns?

8 / 10

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

9 / 10

9. Which 2 of the below represent transaction IDs used for row versioning?

10 / 10

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

Your score is

0%