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Viewing questions 31-40 out of questions
Questions # 31:

During SQL execution, which component generates the execution plan?

Options:

A.

Parser

B.

Executor

C.

Storage Engine

D.

Optimizer

Questions # 32:

The Com_insert and similar Com_xx parameters are used to monitor the number of different operations executed in a database instance. Which of the following commands correctly retrieves this parameter?

Options:

A.

"Show status like 'Com_insert';"

B.

show variables Cominsert

C.

"show variables like 'Com_insert'"

D.

"show status Com_insert"

Questions # 33:

The command show [session|global] status defaults to "global".

Options:

A.

True

B.

False

Questions # 34:

What is the snapshot type used by GaussDB (for MySQL)?

Options:

A.

COW

B.

ROW

C.

DTR

D.

CROW

Questions # 35:

Which statements about session killing in a database are correct?

Options:

A.

Killing sessions is risky and should be confirmed

B.

Rollbacks during session kill consume resources, may worsen load

C.

Long rollbacks delay session release, resources can’t be freed instantly

D.

Killing sessions won’t worsen system load

Questions # 36:

Which statements about SQL execution process are correct?

Options:

A.

Connector: manages connections, verifies permissions

B.

Parser: generates execution plan, selects indexes

C.

Executor: operates engine, returns results

D.

Storage engine: stores data, provides read/write interface

Questions # 37:

Which statements about GaussDB (for MySQL) primary-standby replication are correct?

Options:

A.

Read-only nodes use Log

B.

No latency exists between primary and read-only nodes

C.

Read-only nodes replay WAL and read Pages

D.

Primary and read-only share storage

Questions # 38:

Which steps belong to the overall installation process?

Options:

A.

Pre-installation preparation

B.

Software installation and deployment

C.

Post-installation check

D.

System configuration

Questions # 39:

Huawei Cloud DB Security Audit supports analyzing SQL behavior by risk levels, SQL injection, blacklist statements, and unauthorized operations.

Options:

A.

True

B.

False

Questions # 40:

GaussDB (for MySQL) supports compute-storage separation.

Options:

A.

True

B.

False

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Viewing questions 31-40 out of questions
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