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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

MD5(str) returns a 128-bit checksum as a 40-character hex string.

A.

True

B.

False

Which factors affect database performance?

A.

Hardware

B.

System scale

C.

Software environment

D.

Internal DB factors

What are the parameter types for stored procedures?

A.

IN

B.

OUT

C.

INOUT

D.

OUTIN

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

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

Which of the following statements about GaussDB (for MySQL) instances is incorrect?

A.

An instance contains multiple background threads

B.

An instance includes continuous memory regions

C.

An instance contains various files

D.

An instance corresponds one-to-one with a database

Which SQL O&M features does Cloud DBA provide?

A.

Full SQL Insight

B.

SQL Diagnosis

C.

SQL Audit

D.

Slow SQL

Which are common denormalization practices in DB design?

A.

Increase index count

B.

Recreate tables

C.

Add derived columns

D.

Add redundant columns

When performance drops sharply, Cloud DBA’s SQL module can quickly identify problematic SQL for diagnosis.

A.

True

B.

False

In DRS, backup migration means reading local backup files and restoring to target DB.

A.

True

B.

False

In GaussDB (for MySQL), what is the default slow SQL threshold in seconds?

A.

15s

B.

20s

C.

10s

D.

5s

To facilitate management, DAS Enterprise Edition includes several user roles. Which of the following isnotamong them?

A.

Regular User

B.

DBA

C.

Business Owner

D.

System Administrator

GaussDB (for MySQL) deployment supports both public cloud and hybrid cloud.

A.

True

B.

False

GaussDB (for MySQL) currently only supports the InnoDB storage engine.

A.

True

B.

False

After executing CREATE USER user1@'100.%' IDENTIFIED BY 'Database_123';, user1 can connect from any host.

A.

True

B.

False

The DAS Cloud DBA module can diagnose GaussDB (for MySQL) instances. Which dimensions are included in reports?

A.

Slow SQL analysis

B.

Full SQL analysis

C.

Performance & disk analysis

D.

Tablespace analysis

E.

Large transaction analysis

Which Huawei Cloud service is used to control external access operations to virtual machines?

A.

IAM

B.

VPN

C.

Security Group

D.

VPC

Which steps belong to the overall installation process?

A.

Pre-installation preparation

B.

Software installation and deployment

C.

Post-installation check

D.

System configuration

Which of the following is NOT a feature of a read-only node?

A.

Can quickly delete a read-only node

B.

Handles some write requests

C.

Can quickly be promoted to primary node

D.

Can quickly add a read-only node

Which command in GaussDB (for MySQL) is used to view server status information?

A.

print status

B.

select status

C.

desc status

D.

show status

Read-only nodes replay WAL and read Page Store to sync with the primary node’s memory state, including active transactions and buffer pool.

A.

True

B.

False

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Total 214 questions
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