[May-2026] Verified H13-921_V1.5 dumps Q&As - H13-921_V1.5 dumps with Correct Answers
The Best Huawei-certification Study Guide for the H13-921_V1.5 Exam
NEW QUESTION # 93
Which of the following isnota feature provided by the Data Replication Service (DRS)?
- A. Real-time synchronization
- B. Operation audit
- C. Real-time migration
- D. Backup migration
Answer: B
NEW QUESTION # 94
The frequency of flushing logs from the buffer to disk is related to the parameter innodb_flush_log_at_trx_commit. Which value means "write log buffer data to log file and flush to disk every second"?
- A. 0
- B. 1
- C. 2
Answer: A
NEW QUESTION # 95
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
Answer: A
NEW QUESTION # 96
Which command in GaussDB (for MySQL) is used to view server status information?
- A. select status
- B. desc status
- C. print status
- D. show status
Answer: D
NEW QUESTION # 97
Which of the following are GaussDB (for MySQL) thread statuses?
- A. Inserting data: thread inserting data
- B. Killed: thread terminates after receiving kill signal
- C. Executing: thread executing statement
- D. Creating table: thread creating a table
Answer: B,C,D
NEW QUESTION # 98
GaussDB (for MySQL) is a single-process, multi-threaded database. What are the advantages of threads?
- A. Misbehaving threads won't affect the entire system
- B. Easier creation/management, no merge overhead
- C. Easier creation/management, no memory allocation overhead
- D. Fast context switching
Answer: A,B,C,D
NEW QUESTION # 99
UGO (DB & App Migration) is a professional cloud service for heterogeneous DB structure migration and SQL conversion.
- A. True
- B. False
Answer: A
NEW QUESTION # 100
The parameter max_user_connections can limit user connections per instance, and can differ per user.
- A. True
- B. False
Answer: B
NEW QUESTION # 101
When creating a user in GaussDB (for MySQL), which symbol represents all hosts?
- A. %
- B. ~
- C. *
- D. (Blank)
Answer: A
NEW QUESTION # 102
In Cloud DBA's performance module, "Slow SQL" includes which functions?
- A. Slow log description
- B. Slow log trend
- C. Slow log details
- D. Slow log statistics
Answer: B,C,D
NEW QUESTION # 103
Which of the following are advanced features of GaussDB (for MySQL)?
- A. Parallel computing
- B. Massive storage & cross-AZ
- C. Second-level failover
- D. 1 write, 15 read
- E. Minute-level elastic scaling
Answer: A,B,C,D,E
NEW QUESTION # 104
Which factors affect database performance?
- A. System scale
- B. Software environment
- C. Hardware
- D. Internal DB factors
Answer: A,B,C,D
NEW QUESTION # 105
GaussDB (for MySQL) supports compute node bidirectional scaling: vertical (1 write, 15 reads) and horizontal (elastic online scaling, pay-as-you-go).
- A. True
- B. False
Answer: B
NEW QUESTION # 106
Which factors should be considered when designing database objects?
- A. Normalization design
- B. Field types
- C. Field length
- D. Proper indexing
Answer: A,B,C,D
NEW QUESTION # 107
What is the maximum number of read-only nodes that can be created in one GaussDB (for MySQL) cluster?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 108
Hints in GaussDB (for MySQL) mainly include which categories?
- A. Specify column names
- B. Specify optimization strategy
- C. Specify index
- D. Specify join tables
Answer: B,C,D
NEW QUESTION # 109
Which of the following statements about GaussDB (for MySQL) instances is incorrect?
- A. An instance contains various files
- B. An instance includes continuous memory regions
- C. An instance contains multiple background threads
- D. An instance corresponds one-to-one with a database
Answer: D
NEW QUESTION # 110
In GaussDB (for MySQL), roles cannot log in but can execute SQL statements.
- A. True
- B. False
Answer: B
NEW QUESTION # 111
Which regex pattern is used to match one or more 'h' characters?
- A. h
- B. h*
- C. h+
- D. h-
Answer: C
NEW QUESTION # 112
Which of the following operationscannotbe performed on a diagnostic report?
- A. View
- B. Download
- C. Subscribe
- D. Dump
Answer: D
NEW QUESTION # 113
Which functions are provided by Huawei Cloud Data Replication Service (DRS)?
- A. Real-time sync
- B. Real-time disaster recovery
- C. Data subscription
- D. Backup migration
- E. Real-time migration
Answer: A,B,C,D,E
NEW QUESTION # 114
Under the performance tab, in which module can users view server uptime, connection information, and buffer pool status?
- A. Real-time Performance
- B. Real-time Diagnostics
- C. Performance Trend Comparison
- D. Historical Performance
Answer: A
NEW QUESTION # 115
Response time calculation model = network transmission time (request) + server processing time (one or more layers) + network transmission time (response) + frontend parsing time.
- A. True
- B. False
Answer: A
NEW QUESTION # 116
Which of the following is not an object included in a schema?
- A. View
- B. User
- C. Table
- D. Index
Answer: B
NEW QUESTION # 117
Which command can GaussDB (for MySQL) use to view server status information?
- A. desc
- B. show
- C. print
- D. select
Answer: B
NEW QUESTION # 118
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H13-921_V1.5 certification guide Q&A from Training Expert VCETorrent: https://prepaway.vcetorrent.com/H13-921_V1.5-valid-vce-torrent.html