Postgres Quiz Archive

You have 200 seconds to answer 20 Random questions so think fast!

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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.

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

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

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

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4. Which fork is specific for unlogged tables?

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5. What is another name for the postgres process?

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

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7. Each Database has its own System Catalog?

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

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9. Tablespaces are used to define physical data layout?

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10. What is the purpose of the postgres database?

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

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

choose 2

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13. What is the purpose of the public schema?

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14. What is a schema?

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

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

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

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18. Which fork contains the actual table data?

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19. Which of below are predefined schemas?

choose 2

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

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

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2. What are some of database features we can use to avoid a non repeatable read?

Select more than 1 answer below:

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3. Which of the below are valid Isolations Levels?

choose 2

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

choose 3

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5. What is the default Isolation Level?

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

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

8 / 10

8. Lost updates are forbidden by the standard at all isolation levels?

9 / 10

9. The SQL standard specifies three isolation levels?

10 / 10

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

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

2 / 10

2. CLOG files are stored in which directory?

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3. status of a subtransaction is written into CLOG?

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4. Which 2 items does a Virtual XID consist of?

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

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

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

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8. Which of the below are true about a Pages Item Pointer?

9 / 10

9. Information about subtransactions is stored under?

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10. When a row is created, its xmin value is set to the transaction ID of which command?

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