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H13-921_V1.5 Huawei HCIP-GaussDB-OLTP V1.5 Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Huawei H13-921_V1.5 HCIP-GaussDB-OLTP V1.5 certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 214 questions

In GaussDB (for MySQL), which parameter is used to control the maximum idle time for interactive connections?

A.

wait_timeout

B.

max_connections

C.

interactive_timeout

D.

connect_timeout

Which statements about GaussDB (for MySQL) read-only nodes are correct?

A.

Specs match the cluster

B.

No need to manage accounts/databases, syncs from primary

C.

Provide system performance monitoring

D.

Can be manually promoted to primary

Which of the following is NOT a system built-in user in GaussDB (for MySQL)?

A.

rdsAdmin

B.

rdsRoot

C.

rdsMetric

D.

rdsBackup

Which of the following is a normal tenant creation process?

A.

Add parent tenant

B.

Add tenant

C.

Plan resource management

D.

Bind roles and tenant

GaussDB (for MySQL) log management supports viewing DB-level logs, including error logs and slow SQL logs.

A.

True

B.

False

Which of the following are GaussDB (for MySQL) thread statuses?

A.

Inserting data: thread inserting data

B.

Executing: thread executing statement

C.

Killed: thread terminates after receiving kill signal

D.

Creating table: thread creating a table

When creating a user in GaussDB (for MySQL), which info must be specified?

A.

Username

B.

Host

C.

Password

D.

Max connections

In a 16-core, 64GB GaussDB (for MySQL) instance, what is the default size of the innodb_log_buffer_size parameter?

A.

128MB

B.

256MB

C.

512MB

D.

1024MB

FETCH retrieves the current cursor row and moves to the next. If already at last row, overflow occurs.

A.

True

B.

False

In execution plans, the id indicates SELECT sequence number. Larger IDs execute first; same IDs execute top to bottom.

A.

True

B.

False

The regex function REGEXP_INSTR returns the starting index of a substring matching the regex. If return_option=1, it returns the last matched position.

A.

True

B.

False

Trigger events specify the statements that activate triggers. Which are included?

A.

CREATE

B.

INSERT

C.

UPDATE

D.

DELETE

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)?

A.

Normal

B.

Creating

C.

Restarting

D.

Running

Which statements about SQL execution process are correct?

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

Which of the following statements about PLOG objects in Log Stores are correct?

A.

Uses append-only storage

B.

Identified by a 24-byte unique ID

C.

Default 3 replicas, strong consistency on writes, read from any replica

D.

PLOG size limited to 10GB

The MyISAM engine supports tables with different storage formats. Which are supported?

A.

Dynamic tables

B.

Compressed tables

C.

Temporary tables

D.

Static tables

Using DROP USER must be cautious because deleted objects cannot be recovered even if interrupted.

A.

True

B.

False

Which of the following are core functions of the UGO database migration tool?

A.

Application SQL migration

B.

Database schema migration

C.

Migration workload assessment

D.

Target database selection & spec recommendation

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

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)

What are the features of Huawei Cloud’s Cloud Audit service?

A.

Audit log recording

B.

Audit log querying

C.

Audit log dumping

D.

Event file encryption

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Total 214 questions
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