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[Hardware] CompTIA - Valid DS0-001 - CompTIA DataSys+ Certification Exam Valid Cram Materia

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【Hardware】 CompTIA - Valid DS0-001 - CompTIA DataSys+ Certification Exam Valid Cram Materia

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CompTIA DS0-001 Exam Syllabus Topics:
TopicDetails
Topic 1
  • Data and Database Security: This topic focuses on data security concepts, governance and regulatory compliance purposes, implementing authentication and authorization policies and best practices. Additionally, the topic discusses database infrastructure security, and understanding types of attacks and their effects on data systems.
Topic 2
  • Database Deployment: In this topic, you'll find discussions on database planning and design aspects. It also focuses on the implementation, testing, and deployment phases of databases.
Topic 3
  • Database Management and Maintenance: Here, you'll learn about monitoring and reporting for database management and performance, common database maintenance processes, documentation production, and relevant tools usage. Lastly, the topic focuses on implementing data management tasks.
Topic 4
  • Database Fundamentals: This topic covers database structure types, SQL code development and modification based on scenarios, comparison of scripting methods and environments, and the impact of programming on database operations.
Topic 5
  • Business Continuity: Finally, this topic covers the importance of disaster recovery techniques. Moreover, the topic explains backup and restore best practices and processes.

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CompTIA DataSys+ Certification Exam Sample Questions (Q110-Q115):NEW QUESTION # 110
Howard is a database designer for an e-commerce website working on creating a table to store customer information. He wants to ensure that each customer can be uniquely identified within the table. Which database concept should Jack use to accomplish this goal?
  • A. Foreign Key
  • B. Tuple
  • C. Primary Key
  • D. Relation
Answer: C

NEW QUESTION # 111
A DBA left the company, and the DBA's account was removed from the system. Soon after, scheduled jobs began failing.
Which of the following would have most likely prevented this issue?
  • A. Business continuity plan
  • B. Load balancing
  • C. Assigning a data steward
  • D. Service accounts
Answer: D
Explanation:
The most likely way to prevent this issue is to use service accounts. Service accounts are special accounts that are used by applications or services to perform tasks or run jobs on behalf of users.
Service accounts have limited permissions and access rights that are tailored to their specific functions. By using service accounts, the DBA can ensure that scheduled jobs can run independently of individual user accounts, and avoid failures due to account removal or changes.
The other options are either not related or not effective for this issue. For example, load balancing is a technique that distributes the workload across multiple servers or resources to improve performance and availability; business continuity plan is a plan that outlines how an organization will continue its operations in the event of a disaster or disruption; assigning a data steward is a process that designates a person who is responsible for ensuring the quality and governance of data.

NEW QUESTION # 112
A new retail store employee needs to be able to authenticate to a database. Which of the following commands should a database administrator use for this task?
  • A. ALLOW USER
  • B. CREATE USER
  • C. INSERT USER
  • D. ALTER USER
Answer: B
Explanation:
The command that the database administrator should use for this task is CREATE USER. The CREATE USER command is a SQL statement that creates a new user account in a database and assigns it a username and a password. The CREATE USER command also allows the database administrator to specify other options or attributes for the user account, such as default tablespace, quota, profile, role, etc. The CREATE USER command is the first step to enable a user to authenticate to a database. The other options are either invalid or not suitable for this task. For example, INSERT USER is not a valid SQL command; ALLOW USER is not a SQL command, but a keyword used in some database systems to grant permissions to users; ALTER USER is a SQL command that modifies an existing user account, but does not create a new one. Reference: CompTIA DataSys+ Course Outline, Domain 4.0 Data and Database Security, Objective 4.2 Given a scenario, implement security controls for databases.

NEW QUESTION # 113
Which of the following have data manipulation and procedural scripting power? (Choose two.)
  • A. T-SQL
  • B. SQL
  • C. PL/SQL
  • D. SQL
  • E. Advanced
  • F. PQL
Answer: A,C
Explanation:
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.

NEW QUESTION # 114
A database administrator should review the database disaster recovery documentation:
  • A. just before an outside audit is scheduled.
  • B. during every first week of every month.
  • C. when the company's business requirements change.
  • D. whenever a new Chief Technical Officer joins the company.
Answer: C
Explanation:
Disaster recovery documentation should be reviewed and updated whenever business requirements change to ensure recovery plans remain aligned with current needs.

NEW QUESTION # 115
......
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