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

2 / 20

2. Files are logically split into pages?

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3. Which fork contains the actual table data?

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

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

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

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

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

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

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

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11. What is the name of the mechanism used to store a row bigger than a page size?

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

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13. System Catalog tables begin with which prefix?

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

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15. TOAST tables reside in a seperate schema?

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

choose 3

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

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

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19. What is the point of the pg_global tablespace?

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

choose 2

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

2 / 10

2. What is the default Isolation Level?

3 / 10

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

4 / 10

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

choose 3

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

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

7 / 10

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

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

9 / 10

9. A phantom read anomaly occurs when?

10 / 10

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

Your score is

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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. indexes do not use row versioning?

2 / 10

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

3 / 10

3. Page free space can often become fragmented?

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

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

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6. Tuples can also be referred to as columns?

7 / 10

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

8 / 10

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

9 / 10

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

10 / 10

10. psql provides a special mode that allows you to continue a transaction after a failure?

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