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 process first launched at server start?

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

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

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

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

choose 3

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

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

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

9 / 20

9. What is the purpose of autovacuum?

10 / 20

10. Files are logically split into pages?

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

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12. What is the purpose of the template1 database?

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13. Postgres uses a thread based process model?

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14. What is the name of the system catalog table for relations?

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

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16. Users should not modify the template0 database

17 / 20

17. TOAST tables reside in a seperate schema?

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18. What is the point of the pg_global tablespace?

19 / 20

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

20 / 20

20. Which fork is specific for unlogged tables?

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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. Which of the below are valid Isolations Levels?

choose 2

2 / 10

2. non-repeatable read anomaly occurs when?

3 / 10

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

4 / 10

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

5 / 10

5. Which parameters sets the database default isolation level?

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

7 / 10

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

8 / 10

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

9 / 10

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

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

4 / 10

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

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5. CLOG files are stored in which directory?

6 / 10

6. Tuples can also be referred to as columns?

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7. In Postgres, tables are often referred to as which of the below?

8 / 10

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

9 / 10

9. status of a subtransaction is written into CLOG?

10 / 10

10. CLOG contains how many bits for each transaction?

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