Huawei H13-921_V1.5 Exam Overview:
Huawei H13-921_V1.5 Exam Syllabus Topics:
| Section | Weight | Objectives |
| High Availability and Disaster Recovery | 10% | - Backup and recovery
- 1. Physical backup, logical backup, point-in-time recovery
- High availability mechanism
- 1. Replication, failover, and load balancing
- 2. Data consistency and reliability guarantee
|
| Security Management | 10% | - User and permission management
- 1. Roles, privileges, and access control
- Data security and encryption
- 1. Transmission encryption, storage encryption, audit logs
|
| GaussDB-OLTP Architecture and Features | 20% | - Core features
- 1. Distributed SQL engine and compatibility
- 2. Storage engine and index technology
- Distributed deployment architecture
- 1. Components: CN, DN, GTM, CMS
- 2. Data distribution and sharding mechanism
|
| Installation, Deployment and Configuration | 15% | - Planning and preparation
- 1. Network and environment configuration
- 2. Hardware and software requirements
- Installation and deployment process
- 1. Initial configuration and parameter tuning
- 2. Standalone and cluster deployment
|
| Performance Monitoring and Optimization | 10% | - Monitoring and diagnosis tools
- 1. Key performance indicators and monitoring methods
- Performance tuning
- 1. Parameter adjustment, SQL optimization, resource scheduling
|
| GaussDB-OLTP Fundamentals | 15% | - Database basic theory
- 1. Transaction, ACID properties, isolation levels
- 2. Distributed consistency and CAP theorem
- Basic concepts of distributed databases
- 1. Characteristics and application scenarios of OLTP systems
- 2. Core architecture and evolution of GaussDB-OLTP
|
| Data Management and SQL Operations | 20% | - Database objects management
- 1. Databases, tables, indexes, views
- 2. Partitioning and data distribution strategies
- SQL development and optimization
- 1. Standard SQL and extended syntax
- 2. Execution plan analysis and optimization
|
Huawei HCIP-GaussDB-OLTP V1.5 Sample Questions:
1. Which are common performance bottlenecks in database servers?
A) High CPU usage
B) Improper memory allocation
C) Slow physical I/O
D) Network problems
2. When creating a GaussDB (for MySQL) instance, system accounts are automatically created. Which of the following are such accounts?
A) rdsRepl - replication account
B) rdsAdmin - admin account with superuser privileges
C) rdsBackup - backup account
D) rdsMetric - monitoring account
3. SQL statements exceeding slow_launch_time are recorded in the slow SQL log.
A) True
B) False
4. GaussDB (for MySQL) supports compute-storage separation.
A) True
B) False
5. In GaussDB (for MySQL), what is the default slow SQL threshold in seconds?
A) 15s
B) 20s
C) 10s
D) 5s
Solutions:
Question # 1 Answer: A,B,C,D | Question # 2 Answer: A,B,C,D | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: C |
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