190+ PostgreSQL MCQ With Online Practice Test

PostgreSQL, often referred to as Postgres, is a powerful open-source relational database management system (RDBMS) known for its scalability, robustness, and extensibility. It offers advanced features like ACID compliance, support for complex data types, and support for both SQL and NoSQL data. PostgreSQL is highly regarded for its performance, security, and reliability, making it a popular choice for applications ranging from small startups to large enterprises. Its active developer community continuously enhances and maintains the software. PostgreSQL is an excellent choice for data storage, analysis, and management in various domains, including web applications, data warehousing, and geospatial applications.

Practice Test

141. What is the primary purpose of the PostgreSQL command-line tool "psql"?

Answer: To interact with PostgreSQL databases, execute SQL queries, and manage database objects

142. Which graphical user interface (GUI) tool is commonly used for managing PostgreSQL databases?

Answer: pgAdmin

143. What is the purpose of the "pg_dump" command in PostgreSQL tools?

Answer: To create logical backups of PostgreSQL databases

144. Which tool is used for database migration and data synchronization in PostgreSQL?

Answer: "pglogical"

145. What is the purpose of the "pg_restore" command in PostgreSQL tools?

Answer: To restore PostgreSQL databases from backup files created with pg_dump

146. Which tool is used to configure and manage connection pooling in PostgreSQL?

Answer: "pgBouncer"

147. What is the "pg_stat_statements" module used for in PostgreSQL tools and clients?

Answer: To track and log executed SQL statements for analysis and query optimization

148. What is the purpose of "pg_logical" replication in PostgreSQL tools and clients?

Answer: To enable logical replication between PostgreSQL databases

149. Which PostgreSQL tool provides a command-line interface for database administration and scripting tasks?

Answer: "psql"

150. What is the purpose of the "pgAdmin" tool in PostgreSQL?

Answer: To provide a graphical user interface (GUI) for managing and administering PostgreSQL databases
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