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.

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

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

choose 2

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

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4. TOAST tables reside in a seperate schema?

5 / 20

5. Tablespaces are used to define physical data layout?

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

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7. Postgres uses a thread based process model?

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

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

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

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11. The pg_default tablespace should never be used to create user tables?

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12. Which fork is specific for unlogged tables?

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

Choose 2 option

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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. Each Database has its own System Catalog?

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

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17. What is another name for the postgres process?

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

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19. Which of below are predefined schemas?

choose 3

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20. Postgres by default has built in connection pooling abilities?

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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. non-repeatable read anomaly occurs when?

3 / 10

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

4 / 10

4. The SQL standard specifies three isolation levels?

5 / 10

5. Which of the below are valid Isolations Levels?

choose 2

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

7 / 10

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

8 / 10

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

9 / 10

9. What is the default Isolation Level?

10 / 10

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

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

2 / 10

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

3 / 10

3. CLOG Pages are never cached in memory?

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

5 / 10

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

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

choose 2

7 / 10

7. What does an Item Pointer contain?

choose 3

8 / 10

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

9 / 10

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

10 / 10

10. Tuples can also be referred to as columns?

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