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NEW QUESTION # 81
Which are valid plan display formats?
- A. Analyze
- B. Verbose
- C. Pretty
- D. Normal
Answer: C,D
NEW QUESTION # 82
When creating a user in GaussDB (for MySQL), which symbol represents all hosts?
- A. (Blank)
- B. %
- C. *
- D. ~
Answer: B
NEW QUESTION # 83
The Data Management Service (DAS) is used for logging into and operating cloud databases on Huawei Cloud. Which of the following versions isnotprovided by DAS?
- A. Standard Edition: for developers
- B. For DBAs and O&M personnel
- C. Cloud DB
- D. Professional Edition: for business personnel
- E. Enterprise Edition: for enterprise users
Answer: D
NEW QUESTION # 84
The frequency of flushing the log from buffer to disk is related to the parameter innodb_flush_log_at_trx_commit. If you want to flush the log buffer and write it to disk every time a transaction is committed, what should the parameter value be?
- A. 0
- B. 1
- C. 2
Answer: A
NEW QUESTION # 85
In GaussDB (for MySQL), parameters can show whether the workload is mainly inserts/updates or queries, and the approximate SQL type ratio.
- A. False
- B. True
Answer: A
NEW QUESTION # 86
Which of the following statements about GaussDB (for MySQL) compatibility are correct?
- A. Development ecosystem compatibility (e.g., Hibernate, MyBatis, Druid)
- B. Connector compatibility (MySQL JDBC, ODBC)
- C. Tool compatibility (MySQL WorkBench, Navicat, MySQL Dumper, PL/SQL Developer)
- D. Syntax compatibility with MySQL 8.0 and functions
Answer: A,B,C,D
NEW QUESTION # 87
Which statements about field optimization in GaussDB (for MySQL) are correct?
- A. Choose efficient field types when possible
- B. Match field type to business use (e.g., numeric for amounts)
- C. Choose shorter field lengths when possible
- D. Design adequate length to avoid later schema changes
Answer: A,B,C,D
NEW QUESTION # 88
What is the maximum number of read-only nodes that can be added to a GaussDB (for MySQL) cluster?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 89
Which functions can database security auditing provide?
- A. User behavior audit
- B. Reporting
- C. Real-time alerts
- D. Multidimensional analysis
Answer: A,B,C,D
NEW QUESTION # 90
Which of the following are correct about read-only nodes?
- A. Specs are consistent with the cluster
- B. Provide performance monitoring
- C. No need to manage accounts/databases, sync from primary
- D. Support creating and deleting databases
Answer: A,B,C
NEW QUESTION # 91
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 # 92
Which parameter types can be used when writing stored procedures?
- A. INOUT
- B. OUTIN
- C. OUT
- D. IN
Answer: A,C,D
NEW QUESTION # 93
Which window function generates a ranking within groups, where the same value gets the same rank?
- A. ROW_NUMBER()
- B. RANK()
- C. DENS
- D. PERCENT_RANK()
Answer: D
NEW QUESTION # 94
Which of the following descriptions about GaussDB (for MySQL) CPU and memory expansion isincorrect?
- A. Directly creates a new specification node to replace the old one
- B. During new node creation, the old node remains available, and only one switch is needed with second- level service interruption
- C. Specification scaling takes effect in 5 minutes
- D. During modification, the virtual machine/container must be stopped and restarted afterward
Answer: D
NEW QUESTION # 95
Which statements about Schema are correct?
- A. Forms a namespace to avoid naming conflicts
- B. Equivalent to user, separates object ownership
- C. Collection of DB objects, logical grouping for management
- D. Search order is based on creation time
Answer: A,C
NEW QUESTION # 96
GaussDB (for MySQL) log management supports viewing DB-level logs, including error logs and slow SQL logs.
- A. False
- B. True
Answer: B
NEW QUESTION # 97
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. Restarting
- B. Normal
- C. Running
- D. Creating
Answer: C
NEW QUESTION # 98
The parameter max_user_connections can limit user connections per instance, and can differ per user.
- A. False
- B. True
Answer: A
NEW QUESTION # 99
Which methods can be used during requirements investigation?
- A. Questionnaire survey
- B. Review "User Requirements Specification"
- C. Interviews with business personnel
- D. Sample data collection and analysis
Answer: A,C,D
NEW QUESTION # 100
An e-commerce platform is experiencing a surge in users and needs a database architecture with optimal parallel processing and scalability. Which architecture should be enabled?
- A. Shared-Memory
- B. Shared-Disk
- C. Shared-Everything
- D. Shared-Nothing
Answer: D
NEW QUESTION # 101
Which of the following are GaussDB (for MySQL) thread statuses?
- A. Killed: thread terminates after receiving kill signal
- B. Creating table: thread creating a table
- C. Executing: thread executing statement
- D. Inserting data: thread inserting data
Answer: A,B,C
NEW QUESTION # 102
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?
- A. NULL
- B. Range
- C. ALL
- D. Full
Answer: D
NEW QUESTION # 103
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