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CompTIA DS0-001 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Database Fundamentals	24%	- Scripting and programming 1. Server-side vs client-side scripting 2. Python, PowerShell, CLI tools - Database structure types 1. Relational vs non-relational databases 2. NoSQL types (document, key-value, column, graph) 3. Common systems (e.g., MongoDB, DynamoDB, Cassandra, Neo4j) - SQL development 1. Stored procedures and views 2. DDL, DML, TCL 3. ACID properties
Topic 2: Database Management and Maintenance	25%	- Maintenance tasks 1. Replication and backup management 2. Optimization and indexing concepts 3. Job scheduling and failure monitoring - Monitoring and reporting 1. Performance baselines and trending 2. Alerts and notifications 3. CPU, memory, disk usage monitoring
Topic 3: Business Continuity	12%	- Continuity planning 1. High availability systems 2. Fault tolerance and redundancy - Disaster recovery 1. Incident recovery procedures 2. Backup and restore strategies
Topic 4: Data and Database Security	23%	- Protection mechanisms 1. Attack prevention and mitigation 2. Encryption and data protection 3. Governance and compliance - Security controls 1. Access control and role management 2. Authentication and authorization
Topic 5: Database Deployment	16%	- Planning and design 1. ERDs and data dictionaries 2. Database architecture design 3. Requirements gathering - Implementation and testing 1. Schema validation 2. Stress and regression testing 3. Version control and deployment validation 4. Connectivity testing

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CompTIA DataSys+ Certification Exam Sample Questions (Q25-Q30):

NEW QUESTION # 25
A database system crashed during a routine migration process. Which of the following should the systems administrator refer to for guidance in this situation?

A. The database compliance policy
B. The access control policy
C. The continuity of operations policy
D. The data retention policy

Answer: C

Explanation:
The continuity of operations policy provides guidelines and procedures for maintaining or restoring essential functions during and after disruptions like a database crash.

NEW QUESTION # 26
Which of the following statements best classifies a rollback in a database?

A. DCL
B. TCL
C. DDL
D. DML

Answer: B

Explanation:
A rollback is a Transaction Control Language (TCL) command used to undo changes made during a transaction, ensuring database integrity by reverting to a previous stable state.

NEW QUESTION # 27
Which of the following describes a lock that allows concurrent transactions to access different records of the same table?

A. Database-level lock
B. Row-level lock
C. Table-level lock
D. Page-level lock

Answer: B

Explanation:
A row-level lock permits multiple transactions to access different rows within the same table concurrently, improving concurrency and minimizing contention.

NEW QUESTION # 28
Gary is logging into a system and is providing his fingerprint to gain access. What step of the IAM process is he performing?

A. Authorization
B. Authentication
C. Identification
D. Accounting

Answer: B

NEW QUESTION # 29
A company needs information about the performance of users in the sales department. Which of the following commands should a database administrator use for this task?

A. DELETE
B. SELECT
C. UPDATE
D. DROP

Answer: B

Explanation:
The command that the database administrator should use for this task is SELECT. The SELECT command is a SQL statement that retrieves data from one or more tables or views in a database.
The SELECT command can also use various clauses or options to filter, group, sort, or aggregate data according to specific criteria or conditions. By using the SELECT command, the database administrator can obtain information about the performance of users in the sales department, such as their sales volume, revenue, commission, etc. The other options are either not related or not suitable for this task. For example, DROP is a SQL command that deletes an existing table or object from a database; UPDATE is a SQL command that modifies existing data in one or more rows of a table; DELETE is a SQL command that removes existing data from one or more rows of a table.

NEW QUESTION # 30
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