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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA DataSys+ Certification Exam |
| Exam Number: | DS0-001 |
| Real Exam Qty: | 90 |
| Exam Format: | Multiple Choice, Performance-based |
| Certificate Validity Period: | 3 years |
| Available Languages: | English |
| Related Certifications: | CompTIA Network+ CompTIA Server+ CompTIA A+ |
| Passing Score: | 750 (on a scale of 100-900) |
| Exam Price: | $252 USD |
| Exam Duration: | 90 minutes |
| Sample Questions: | CompTIA DS0-001 Sample Questions |
| Exam Way: | Pearson VUE testing centers (both in-person and online proctored options may be available) |
| Pre Condition: | Recommended: CompTIA A+ or equivalent; 2 years of hands-on database experience; familiarity with SQL and database concepts |
| Official Syllabus URL: | https://www.comptia.org/certifications/datasys |
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質問 # 62
A database administrator wants to remove inactive customers from a database. Which of the following statements should the administrator use?
正解：B
解説：
The statement that the administrator should use to remove inactive customers from a database is option A. This statement uses the DELETE command to delete all the rows from the customer table where the status column is equal to 'inactive'. The other options either have syntax errors, use incorrect commands, or do not specify the condition correctly. Reference: CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective 1.2 Given a scenario, execute database tasks using scripting and programming languages.
質問 # 63
(A database system crashed during a routine migration process. Which of the following should the systems administrator refer to for guidance in this situation?)
正解：B
解説：
The correct answer is D. The continuity of operations policy. CompTIA DataSys+ emphasizes that when an unexpected system failure occurs-especially during critical activities such as database migrations-the primary concern is restoring services, minimizing downtime, and ensuring data availability. The continuity of operations policy (often aligned with business continuity and disaster recovery planning) provides documented guidance on how to respond to system outages and operational disruptions.
A continuity of operations policy outlines procedures, roles, and responsibilities for maintaining or rapidly restoring essential systems after an incident. This includes steps for failover, rollback procedures, recovery prioritization, communication protocols, and escalation paths. During a migration-related crash, administrators rely on this policy to determine whether to restore from backups, revert to a previous database version, activate standby systems, or follow defined recovery time objectives (RTOs) and recovery point objectives (RPOs). DataSys+ highlights these policies as critical for ensuring predictable and coordinated responses during system failures.
Option A, the data retention policy, focuses on how long data must be stored and when it can be archived or deleted. It does not provide operational guidance for handling system crashes. Option B, the access control policy, governs authentication and authorization rules and is unrelated to recovery actions. Option C, the database compliance policy, addresses regulatory and audit requirements but does not define technical recovery procedures during an outage.
CompTIA DataSys+ clearly distinguishes governance and security policies from operational resilience policies. When a database crashes during a migration, the administrator's priority is service restoration and data integrity, both of which are addressed by continuity of operations planning.
Therefore, the systems administrator should refer to the continuity of operations policy, making option D the correct and fully verified answer.
質問 # 64
Which of the following have data manipulation and procedural scripting power? (Choose two.)
正解：B、F
解説：
The two options that have data manipulation and procedural scripting power are PL/SQL and T-SQL. PL/SQL, or Procedural Language/Structured Query Language, is an extension of SQL that adds procedural features to SQL for Oracle databases. PL/SQL allows users to create and execute stored procedures, functions, triggers, packages, etc., using variables, loops, conditions, exceptions, etc., in addition to SQL commands. PL/SQL helps improve the performance, functionality, modularity, and security of SQL queries and applications. T-SQL, or Transact-SQL, is an extension of SQL that adds procedural features to SQL for Microsoft SQL Server databases. T-SQL allows users to create and execute stored procedures, functions, triggers, etc., using variables, loops, conditions, exceptions, etc., in addition to SQL commands. T-SQL helps improve the performance, functionality, modularity, and security of SQL queries and applications. The other options are either not related or not having both data manipulation and procedural scripting power. For example, PQL, or Power Query Language, is a data analysis and transformation language for Microsoft Power BI and Excel; Advanced SQL is a term that refers to the advanced features or techniques of SQL, such as subqueries, joins, aggregations, etc.; SQL, or Structured Query Language, is a standard language for manipulating and querying data in relational databases, but it does not have procedural features. Reference: CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective 1.2 Given a scenario, execute database tasks using scripting and programming languages.
質問 # 65
A database administrator needs to remove a redundant customer table from a database in order to streamline periodic reports. Which of the following commands is best for this task?
正解：B
解説：
The DROP TABLE command permanently removes the entire customer table and its data from the database, streamlining reports and eliminating redundancy.
質問 # 66
An IT department needs to validate who signs in and has permissions to use the company's cloud resources. Which of the following can be used to accomplish this task?
正解：A
解説：
Identity and Access Management (IAM) systems authenticate users and authorize permissions, ensuring that only validated individuals can access cloud resources.
質問 # 67
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