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  5. HCIP-GaussDB-OLTP V1.5 Questions and Answers

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Viewing questions 41-50 out of questions
Questions # 41:

DRS provides complete heterogeneous database migration to the cloud, ensuring smooth business cutover.

Options:

A.

True

B.

False

Questions # 42:

Database instance status refers to the running status of the DB instance. Which of the following is NOT a valid status for GaussDB (for MySQL)?

Options:

A.

Normal

B.

Creating

C.

Restarting

D.

Running

Questions # 43:

To elastically scale read capacity and reduce GaussDB (for MySQL) pressure, read-only nodes can be created. Which statements are correct?

Options:

A.

One cluster supports up to 15 read-only nodes

B.

Support data migration to read-only nodes

C.

Support creating and deleting databases

D.

No account creation allowed on read-only nodes (must be on primary)

Questions # 44:

Which descriptions of important modules in GaussDB (for MySQL) architecture are correct?

Options:

A.

Page Stores: persist Pages

B.

SAL (Storage Abstraction Layer): sharding, recovery, remote storage

C.

SQL: transaction commit, based on MySQL 8.0, fully compatible

D.

Log Stores: persist redo logs

Questions # 45:

When executing select * from processlist; to view instance-related information in GaussDB (for MySQL), which database should be used?

Options:

A.

sys

B.

mysql

C.

information_schema

D.

performance_schema

Questions # 46:

In GaussDB (for MySQL), the optimizer generates execution plans, which are executed by the executor.

Options:

A.

True

B.

False

Questions # 47:

Which window function generates a ranking within groups, where the same value gets the same rank?

Options:

A.

DENS

B.

RANK()

C.

PERCENT_RANK()

D.

ROW_NUMBER()

Questions # 48:

Which of the following statements about stored procedures and functions are correct?

Options:

A.

Stored procedures can end with ; or /, but not both

B.

Functions return values and can be directly used

C.

Procedures/functions without parameters can be called without parentheses

D.

Parameters can be specified directly or with =>

Questions # 49:

Which command can GaussDB (for MySQL) use to view server status information?

Options:

A.

print

B.

select

C.

desc

D.

show

Questions # 50:

GaussDB (for MySQL) allows backup policy configuration in Huawei Cloud Console. Which of the following cannot be modified?

Options:

A.

Retention days

B.

Backup time window

C.

Automatic backup switch

D.

Backup cycle

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Viewing questions 41-50 out of questions