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Free Huawei H13-921_V1.5 Practice Exam with Questions & Answers | Set: 4

Questions 31

Frequent UPDATE operations can cause page splits, leading to severe fragmentation.

Options:
A.

True

B.

False

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Questions 32

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 33

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 34

What are the main features of GaussDB 100?

Options:
A.

Extreme performance

B.

Simple and easy to use

C.

NoSQL database

D.

Secure and reliable

Questions 35

For multidimensional clue analysis in data security auditing, which clues are supported by Huawei Cloud?

Options:
A.

Risk clues

B.

Session clues

C.

Detailed statement clues

D.

User clues

Questions 36

The EXPLAIN command can be used to view the execution plan of SQL statements. In the execution plan, Type indicates the access method to the table. Which of the following is not a valid Type value?

Options:
A.

ALL

B.

Range

C.

Full

D.

NULL

Questions 37

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

Options:
A.

Slow SQL analysis

B.

Full SQL analysis

C.

Performance & disk analysis

D.

Tablespace analysis

E.

Large transaction analysis

Questions 38

In the EXPLAIN command output of GaussDB (for MySQL), which Select_type values are valid?

Options:
A.

DEPENDENT UNION: subsequent SELECTs in a UNION

B.

DERIVED: derived table SELECT (subquery in FROM)

C.

UNION RESULT: result of UNION

D.

PRIMARY: outermost SELECT in query with subqueries

Questions 39

When looping over cursors, overflow can occur if end-of-data isn’t checked. Which handlers can be used to control execution properly?

Options:
A.

declare continue handler

B.

declare exit handler

C.

declare next handler

D.

declare break handler

Questions 40

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

Options:
A.

True

B.

False

Exam Code: H13-921_V1.5
Certification Provider: Huawei
Exam Name: HCIP-GaussDB-OLTP V1.5
Last Update: Oct 5, 2025
Questions: 214

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