[Jun-2026] H13-921_V1.5 Exam Questions and Valid H13-921_V1.5 Dumps PDF
H13-921_V1.5 Brain Dump: A Study Guide with Tips & Tricks for passing Exam
Huawei H13-921_V1.5 (HCIP-GaussDB-OLTP V1.5) Certification Exam is a professional-level certification exam that validates the skills and knowledge of IT professionals in managing, deploying, and maintaining OLTP databases using Huawei GaussDB technology. HCIP-GaussDB-OLTP V1.5 certification exam is designed to help candidates acquire the technical expertise required to work with the GaussDB-OLTP V1.5 database and build a successful career in the database management field.
NEW QUESTION # 120
Which window function generates a ranking within groups, where the same value gets the same rank?
- A. RANK()
- B. ROW_NUMBER()
- C. DENS
- D. PERCENT_RANK()
Answer: D
NEW QUESTION # 121
Which of the following is a supported storage engine in GaussDB (for MySQL)?
- A. InnoDB storage engine
- B. MyISAM storage engine
- C. Memory storage engine
- D. ARCHIVE storage engine
Answer: A
NEW QUESTION # 122
FETCH retrieves the current cursor row and moves to the next. If already at last row, overflow occurs.
- A. False
- B. True
Answer: B
NEW QUESTION # 123
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. False
- B. True
Answer: B
NEW QUESTION # 124
Which methods can be used to find fragmented tables in GaussDB (for MySQL)?
- A. SHOW TABLES directly
- B. Cloud DBA "Space" function
- C. SHOW TABLE STATUS LIKE 'table_name' and check Data_free
- D. Query information_schema.TABLES
Answer: B,C,D
NEW QUESTION # 125
When looping over cursors, overflow can occur if end-of-data isn't checked. Which handlers can be used to control execution properly?
- A. declare exit handler
- B. declare continue handler
- C. declare next handler
- D. declare break handler
Answer: A,B
NEW QUESTION # 126
The delay between read-only and primary nodes mainly comes from which of the following?
- A. Read-only nodes replaying WAL
- B. Read-only nodes reading logs
- C. Small data sync between hosts
- D. Read-only nodes deleting WAL
Answer: A,B,C
NEW QUESTION # 127
In DRS, backup migration means reading local backup files and restoring to target DB.
- A. False
- B. True
Answer: A
NEW QUESTION # 128
GaussDB (for MySQL) is 100% compatible with MySQL ecosystem, applications can migrate to cloud without modification.
- A. False
- B. True
Answer: B
NEW QUESTION # 129
The command show [session|global] status defaults to "global".
- A. False
- B. True
Answer: A
NEW QUESTION # 130
When executing select * from processlist; to view instance-related information in GaussDB (for MySQL), which database should be used?
- A. mysql
- B. information_schema
- C. sys
- D. performance_schema
Answer: B
NEW QUESTION # 131
When using "Full SQL Insight," DAS must be enabled to collect all SQL. After enabling, what is the performance overhead within?
- A. 5%
- B. 2%
- C. 4%
- D. 3%
Answer: A
NEW QUESTION # 132
What is the impossible result of executing: SELECT FLOOR(8 + (RAND()* 5));?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 133
GaussDB (for MySQL) uses snapshots for both full and incremental backups, with second-level creation efficiency.
- A. False
- B. True
Answer: A
NEW QUESTION # 134
Which parameters can limit resources per user?
- A. MAX_UPDATES_PER_HOUR
- B. MAX_USER_CONNECTIONS
- C. MAX_QUERIES_PER_HOUR
- D. MAX_CONNECTIONS_PER_HOUR
Answer: A,B,C,D
NEW QUESTION # 135
Which statements about GaussDB (for MySQL) primary-standby replication are correct?
- A. Primary and read-only share storage
- B. Read-only nodes replay WAL and read Pages
- C. No latency exists between primary and read-only nodes
- D. Read-only nodes use Log
Answer: A,B,D
NEW QUESTION # 136
Which are Huawei Cloud security services?
- A. VPC network security functions
- B. Database Security Service (DBSS)
- C. Cloud Audit Service (CTS)
- D. Identity and Access Management (IAM)
Answer: A,B,C,D
NEW QUESTION # 137
In regex, a* matches 0 or more "a" characters.
- A. False
- B. True
Answer: B
NEW QUESTION # 138
The regex function REGEXP_INSTR returns the starting index of a match. If return_option=1, it returns the last position.
- A. False
- B. True
Answer: B
NEW QUESTION # 139
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