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 purpose of autovacuum?

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

3 / 20

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

4 / 20

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

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

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

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7. What is the purpose of the visibility map?

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8. Tablespaces can be used to segregate data based on performance needs?

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9. Which of below are predefined schemas?

choose 3

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10. What is the purpose of the public schema?

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11. Postgres uses a thread based process model?

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12. Tablespaces are used to define physical data layout?

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13. Users should not modify the template0 database

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

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

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

choose 3

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17. Which fork contains the actual table data?

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18. Which 3 databases exist directly after cluster initialization?

choose 3 options

19 / 20

19. If we create a new tablespace which directory will symbolic links be created from?

20 / 20

20. TOAST tables reside in a seperate schema?

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

2 / 10

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

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

4 / 10

4. Which of the below are valid Isolations Levels?

choose 2

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5. non-repeatable read anomaly occurs when?

6 / 10

6. A phantom read anomaly occurs when?

7 / 10

7. Which parameters sets the database default isolation level?

8 / 10

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

9 / 10

9. What is the default Isolation Level?

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

2 / 10

2. If a transaction is read only which kind of Transaction ID is it allocated?

3 / 10

3. What does an Item Pointer contain?

choose 3

4 / 10

4. Information about subtransactions is stored under?

5 / 10

5. indexes do not use row versioning?

6 / 10

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

choose 2

7 / 10

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

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

9 / 10

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

10 / 10

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

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