Free PostgreSQL-Essentials braindumps download (PostgreSQL-Essentials exam dumps Free Updated Jun 24, 2026) [Q44-Q65]

Free PostgreSQL-Essentials braindumps download (PostgreSQL-Essentials exam dumps Free Updated Jun 24, 2026)

PostgreSQL-Essentials Dumps for Pass Guaranteed - Pass PostgreSQL-Essentials Exam 2026

EnterpriseDB PostgreSQL-Essentials Exam Syllabus Topics:

Topic	Details
Topic 1	Backup And Recovery Strategies: This section of the exam measures the skills of Database Administrators and focuses on developing an understanding of essential backup and recovery methods. It evaluates the ability to design, implement, and manage strategies that ensure data protection and system continuity in case of unexpected failures or data loss scenarios.
Topic 2	Database Objects and Hierarchy: This section of the exam measures the skills of Database Developers and includes understanding tables, views, indexes, and their relationships within a database structure. It assesses the ability to manage and organize objects in a logical hierarchy for efficient data access.
Topic 3	Fundamental SQL: This section of the exam measures the skills of Database Developers and covers foundational SQL concepts, including queries, joins, and data manipulation. It ensures that candidates can efficiently retrieve, update, and manage data within relational databases.
Topic 4	Database Security: This section of the exam measures the skills of Security Analysts and focuses on access control, encryption, and user authentication techniques. It evaluates the candidate’s ability to protect sensitive data and maintain compliance with security standards.
Topic 5	Disaster Recovery: This section of the exam measures the skills of IT Infrastructure Managers and emphasizes planning and executing disaster recovery procedures. It ensures candidates can design recovery plans to restore operations quickly and minimize data loss after catastrophic events.
Topic 6	Backup and Recovery Tools Overview: This section of the exam measures the skills of System Engineers and covers the use of various backup and recovery tools, including their functionality, compatibility, and configuration. It focuses on selecting appropriate tools based on database type, size, and organizational recovery objectives.
Topic 7	Database Maintenance: This section of the exam measures the skills of Database Administrators and covers maintenance operations such as updates, indexing, and performance optimization. The focus is on ensuring long-term database efficiency, integrity, and minimal downtime.
Topic 8	Configuration Parameters: This section of the exam measures the skills of Database Administrators and includes knowledge of key configuration parameters that impact performance, storage, and reliability. Candidates are tested on setting and tuning configurations to optimize database stability and responsiveness.
Topic 9	Creating and Managing Databases: This section of the exam measures the skills of Database Developers and focuses on creating, configuring, and maintaining databases. It assesses understanding of database lifecycle management, including setup, schema creation, and performance adjustments.

 

NEW QUESTION # 44
What is the purpose of shared_buffers configuration parameter in PostgreSQL?

• A. To set the amount of memory for sorting
• B. To control WAL buffer size
• C. To set connection pool size
• D. To determine memory for caching data from disk

Answer: D

NEW QUESTION # 45
Which parameter specifies the number of connections reserved for superusers in PostgreSQL?

• A. reserved_connections
• B. admin_connections
• C. superuser_reserved_connections
• D. max_superuser_connections

Answer: C

NEW QUESTION # 46
You want to configure your cluster to run in archive mode for Point-in-Time Recovery. Which parameter must you set in postgresql.conf?

• A. backup_mode = on
• B. wal_archive = on
• C. archive_mode = on
• D. archiving = on

Answer: C

NEW QUESTION # 47
You want to reload the PostgreSQL configuration without restarting the server. Which function should you execute?

• A. pg_restart_conf()
• B. pg_reload_conf()
• C. reload_configuration()
• D. pg_refresh_conf()

Answer: B

NEW QUESTION # 48
Which PostgreSQL configuration parameter controls the amount of memory used for sorting operations before writing to temporary disk files?

• A. work_mem
• B. maintenance_work_mem
• C. shared_buffers
• D. temp_buffers

Answer: A

NEW QUESTION # 49
In PostgreSQL, which system catalog stores information about databases?

• A. pg_tables
• B. information_schema.databases
• C. pg_database
• D. pg_class

Answer: C

NEW QUESTION # 50
Which psql meta-command is used to list all databases in the cluster?

• A. \databases
• B. \list
• C. Both A and B
• D. \l

Answer: C

NEW QUESTION # 51
You want to set temporary memory to 8MB. Which parameter should you configure?

• A. temporary_memory = 8MB
• B. temp_buffers = 8MB
• C. work_mem = 8MB
• D. temp_memory = 8MB

Answer: B

NEW QUESTION # 52
In PostgreSQL, what is the default size of a WAL segment file?

• A. 16 MB
• B. 64 MB
• C. 8 MB
• D. 32 MB

Answer: A

NEW QUESTION # 53
You want to export query results to a CSV file from psql. Which command should you use?

• A. \export filename.csv
• B. \copy tablename TO 'filename.csv' CSV
• C. EXPORT TO 'filename.csv'
• D. SAVE AS 'filename.csv'

Answer: B

NEW QUESTION # 54
Which parameter sets the number of autovacuum worker processes?

• A. autovacuum_workers
• B. autovacuum_max_workers
• C. vacuum_workers
• D. max_autovacuum_workers

Answer: B

NEW QUESTION # 55
Which of the following system functions can be used to track the status of the vacuum process?

• A. pg_stat_progress_vacuum
• B. pg_stat_user_vacuum
• C. pg_stat_vacuum
• D. pg_stat_vacuumdb

Answer: A

NEW QUESTION # 56
You need to restore a database from a compressed format backup file created with pg_dump -Fc option.
Which utility should you use?

• A. psql
• B. pg_dump
• C. pg_restore
• D. pg_basebackup

Answer: C

NEW QUESTION # 57
You are working as a Postgres DBA. Due to an increase in transactional load on your Postgres instance, the server is experiencing frequent checkpoints. You have decided to increase the WAL area size. You have also decided to upgrade your database instance to PostgreSQL 13. While initializing your database cluster in PostgreSQL 13, you have decided to increase the WAL segment size. Which of the following options can be used with the initdb command to set a custom WAL segment size?

• A. No such option is available in PostgreSQL
• B. -x
• C. --waldir
• D. --wal-segsize

Answer: D

NEW QUESTION # 58
In PostgreSQL 13, which parameter must be set to enable WAL archiving for Point-in-Time Recovery?

• A. wal_level must be set to replica or higher
• B. backup_mode must be set to archive
• C. wal_archiving must be set to on
• D. archive_level must be set to full

Answer: A

NEW QUESTION # 59
Which pg_dump option allows you to dump only the data without schema definitions?

• A. -D
• B. --no-schema
• C. --data-only
• D. -d

Answer: C

NEW QUESTION # 60
SERIAL and IDENTITY columns can be used to add an auto-incrementing column in a Postgres table. Which of these two column types are SQL standard compliant?

• A. Serial
• B. Identity
• C. None
• D. Both

Answer: B

NEW QUESTION # 61
You want to view all available functions in the current database using psql. Which command should you use?

• A. \functions
• B. \df
• C. \f
• D. \fn

Answer: B

NEW QUESTION # 62
You need to restore only the schema from a custom format backup file. Which pg_restore option should you use?

• A. -s
• B. Both B and C
• C. --data-only
• D. --schema-only

Answer: B

NEW QUESTION # 63
Which parameter controls the amount of memory allocated for maintenance operations like VACUUM and CREATE INDEX?

• A. work_mem
• B. maintenance_work_mem
• C. shared_buffers
• D. autovacuum_work_mem

Answer: B

NEW QUESTION # 64
You want to execute SQL commands from a file using psql. Which command should you use?

• A. \i filename
• B. \f filename
• C. \e filename
• D. \run filename

Answer: A

NEW QUESTION # 65
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