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Huawei H13-921_V1.5 Exam Syllabus Topics:

Huawei HCIP-GaussDB-OLTP V1.5 Sample Questions:

1. During SQL execution, which component generates the execution plan?

A) Optimizer
B) Parser
C) Storage Engine
D) Executor

2. System tables and views record metadata for DB objects and users. Which system table or viewcannotbe used to query user information?

A) pg_user
B) pg_authid
C) pg_roles
D) pg_auth_members

3. Using the EXPLAIN command in GaussDB (for MySQL), which of the following isnota valid Select_type?

A) SUBQUERY
B) COMPLEX
C) SIMPLE
D) PRIMARY

4. When creating a GaussDB (for MySQL) instance, the system automatically creates system accounts (usable by users) to support backend O&M. Which are these accounts?

A) rdsBackup
B) rdsRepl
C) rdsMetric
D) rdsAdmin

5. 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) 3%
D) 4%

Solutions: