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CompTIA DS0-001 Exam Syllabus Topics:

Topic	Details
Topic 1	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 2	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 3	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 4	Business Continuity: Finally, this topic covers the importance of disaster recovery techniques. Moreover, the topic explains backup and restore best practices and processes.
Topic 5	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.

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CompTIA DataSys+ Certification Exam Sample Questions (Q93-Q98):

NEW QUESTION # 93
A database administrator wants to create a database that does not have a predefined schema.
Which of the following tools should the administrator use to create this type of database?
(Choose two.)

A. MariaDB
B. Cosmos
C. MySQL
D. MongoDB
E. PostgreSQL
F. SQL Server

Answer: B,D

NEW QUESTION # 94
Which of the following is a characteristic of all non-relational databases?

A. Tabular schema
B. Unstructured data
C. Columns with the same data type
D. Logical record groupings

Answer: B

Explanation:
The characteristic of all non-relational databases is unstructured data. Unstructured data is data that does not have a predefined or fixed format, schema, or structure. Unstructured data can include various types of data, such as text, images, audio, video, etc. Non-relational databases, also known as NoSQL databases, are databases that store and manage unstructured data using different models, such as key-value, document, graph, columnar, etc. Non-relational databases are suitable for handling large volumes, variety, and velocity of data that do not fit well in the relational model. The other options are either characteristics of relational databases or not related to database types at all. For example, columns with the same data type, logical record groupings, and tabular schema are characteristics of relational databases, which are databases that store and manage structured data using tables, rows, columns, and constraints.

NEW QUESTION # 95
A database administrator manages a database server that is running low on disk space. A lot of backup files are stored on the server's disks.
Which of the following is the best action for the administrator to take?

A. Delete all the backup files except for the most recent one.
B. Delete all the backup files containing data that is rated as classified.
C. Move all the backup files to external disks.
D. Delete all the backup files that are not required by the backup retention policy.

Answer: D

Explanation:
The best action for the administrator to take is to delete all the backup files that are not required by the backup retention policy. This will free up disk space on the server and also comply with the best practices for data backup and recovery. The backup retention policy defines how long the backup files should be kept and when they should be deleted or archived. The other options are either risky, inefficient, or impractical. For example, moving all the backup files to external disks would require additional hardware and time, deleting all the backup files containing data that is rated as classified would compromise data security and compliance, and deleting all the backup files except for the most recent one would limit the recovery options in case of a disaster.

NEW QUESTION # 96
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. ALTER USER
B. CREATE USER
C. ALLOW USER
D. INSERT 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.

NEW QUESTION # 97
Which of the following is a typical instruction that is found on a Linux command-line script and represents a system shell?

A. >/bin/sh
B. /bin/bash
C. #!/bin/bash
D. #/bin/shell

Answer: C

Explanation:
The instruction that is found on a Linux command-line script and represents a system shell is
#!/bin/bash. This instruction is called a shebang or a hashbang, and it indicates the interpreter that should be used to execute the script. In this case, the interpreter is /bin/bash, which is the path to the bash shell, a common system shell for Linux. A system shell is a program that provides an interface for users to interact with the operating system, either through commands or scripts. A system shell can also perform various tasks, such as file management, process control, variable assignment, etc. The other options are either incorrect or not typical for this purpose. For example, /bin/bash is the path to the bash shell, but it does not indicate the interpreter for the script; #/bin/shell is not a valid shebang or a path to a system shell; >/bin/sh is a redirection operator followed by a path to a system shell, but it does not indicate the interpreter for the script.

NEW QUESTION # 98
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