Huawei H13-921_V1.5 Exam Questions Free Practice Test

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Questions # 31:

Which methods can be used during requirements investigation?

Options:

Questionnaire survey

Interviews with business personnel

Sample data collection and analysis

Review “User Requirements Specification”

Expert Solution

Questions # 32:

In GaussDB (for MySQL), which parameter is used to control the maximum idle time for interactive connections?

Options:

wait_timeout

max_connections

interactive_timeout

connect_timeout

Expert Solution

Questions # 33:

When using hints, different scopes apply. Which scope descriptions are correct?

Options:

Global: affects entire statement

Query block: affects a specific query block

Table-level: affects a table in a block

Index-level: affects an index in a table

Expert Solution

Questions # 34:

Which of the following descriptions about the MEMORY storage engine is incorrect?

Options:

MEMORY storage engine stores data in memory to provide fast access for queries and joins.

MEMORY storage engine supports only B-tree indexes and not hash indexes.

Data in MEMORY tables is lost if the mysqld daemon crashes.

MEMORY storage engine uses fixed-length format for data, and does not support BLOB or TEXT types.

Expert Solution

Questions # 35:

Under the performance tab, in which module can users view server uptime, connection information, and buffer pool status?

Options:

Historical Performance

Real-time Performance

Real-time Diagnostics

Performance Trend Comparison

Expert Solution

Questions # 36:

Which of the following statements are incorrect?

Options:

Page Store persists Pages and SQL reads pages

Slice is independent and max size is 1GB

Log Store defaults to multi-replica sync

Log Store uses append-only

Expert Solution

Questions # 37:

Compared to RDS for MySQL, GaussDB (for MySQL) has no standby nodes; all read-only are active and handle read traffic, improving utilization.

Options:

True

False

Expert Solution

Questions # 38:

Which of the following is NOT a feature of a read-only node?

Options:

Can quickly delete a read-only node

Handles some write requests

Can quickly be promoted to primary node

Can quickly add a read-only node

Expert Solution

Questions # 39:

Which statements about Schema are correct?

Options:

Equivalent to user, separates object ownership

Collection of DB objects, logical grouping for management

Search order is based on creation time

Forms a namespace to avoid naming conflicts

Expert Solution

Questions # 40:

In GaussDB (for MySQL), parameters can show whether the workload is mainly inserts/updates or queries, and the approximate SQL type ratio.

Options:

True

False

Expert Solution

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