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Oracle 1z0-908 Exam With Confidence Using Practice Dumps

Exam Code:
1z0-908
Exam Name:
MySQL 8.0 Database Administrator
Certification:
MySQL Database Administration
Vendor:
Oracle
Questions:
140
Last Updated:
Nov 21, 2024
Exam Status:
Stable
Oracle 1z0-908

1z0-908: MySQL Database Administration Exam 2024 Study Guide Pdf and Test Engine

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MySQL 8.0 Database Administrator Questions and Answers

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Question 1

Which two are characteristics of snapshot-based backups? (Choose two.)

Options:

A.

Snapshot-based backups greatly reduce time during which the database and applications are unavailable.

B.

There is no need for InnoDB tables to perform its own recovery when restoring from the snapshot backup.

C.

The frozen file system can be cloned to another virtual machine immediately into active service.

D.

A separate physical copy must be made before releasing the snapshot backup.

E.

Snapshot backups can be used only in virtual machines.

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Question 2

The data in this instance is transient; no backup or replication will be required. It is currently under performing.

  • The database size is static and including indexes is 19G.
  • Total system memory is 32G.

After profiling the system, you highlight these MySQL status and global variables:

The OS metrics indicate that disk is a bottleneck. Other variables retain their default values.

Which three changes will provide the most benefit to the instance? (Choose three.)

Options:

A.

innodb_flush_log_at_trx_commit=1

B.

buffer_pool_size=24G

C.

innodb_log_file_size=1G

D.

sync_binlog=0

E.

innodb_doublewrite=0

F.

max_connections=10000

G.

innodb_undo_directory=/dev/shm

Question 3

Which three statements are true about MySQL replication? (Choose three.)

Options:

A.

Replication can use only TCP/IP connections.

B.

Any instance can have multiple slaves, but it can have only one master.

C.

Each instance in a replication topology must have a unique server ID.

D.

Binary logs contain only transactions originating from a single MySQL instance.

E.

Each slave must have its own MySQL user for replication.

F.

Binary logging must be enabled on the master in order to replicate to other instances.

G.

A replication user must have the SELECT privilege for all tables that need to be replicated.

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