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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data and Database Security | 23% | - Protection mechanisms
|
| Topic 2: Business Continuity | 12% | - Continuity planning
|
| Topic 3: Database Fundamentals | 24% | - SQL development
|
| Topic 4: Database Deployment | 16% | - Implementation and testing
|
| Topic 5: Database Management and Maintenance | 25% | - Monitoring and reporting
|
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NEW QUESTION # 41
Which of the following is a characteristic of all non-relational databases?
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. References: CompTIA DataSys+ Course Outline, Domain 1.0 Database Fundamentals, Objective 1.1 Given a scenario, identify common database types.
NEW QUESTION # 42
(Which of the following should a database administrator monitor to ensure a database has enough physical storage available to maintain performance expectations? Select two.)
Answer: C,D
Explanation:
The correct answers are B. Disk space and D. Database size growth. CompTIA DataSys+ places strong emphasis on storage monitoring as a critical responsibility of a database administrator (DBA), particularly to ensure ongoing performance, availability, and capacity planning. Physical storage constraints directly affect database operations such as inserts, updates, indexing, backups, and transaction logging.
Disk space monitoring is essential because databases require sufficient free storage not only for data files, but also for transaction logs, temporary files, indexes, and maintenance operations. If disk space becomes constrained, the database may experience degraded performance, failed write operations, or complete service outages. DataSys+ highlights proactive disk monitoring as a best practice to prevent unplanned downtime and emergency remediation.
Database size growth is equally important because it enables the DBA to anticipate future storage needs.
Databases rarely remain static; they grow as new records are added, indexes expand, and historical data accumulates. By tracking growth trends, administrators can forecast when additional storage will be required and take action before performance is impacted. DataSys+ identifies capacity planning as a key operational task, and monitoring growth patterns is central to that process.
Option A, network traffic, affects connectivity and throughput but does not determine physical storage availability. Option C, concurrent connections, relates to workload and performance but not disk capacity.
Option E, CPU usage, and option F, RAM usage, are critical server health metrics, but they do not indicate whether sufficient physical storage exists.
CompTIA DataSys+ clearly distinguishes between compute resources and storage resources. To ensure adequate physical storage and sustained performance, DBAs must monitor both current disk utilization and long-term database growth. Therefore, B and D are the correct and fully verified answers.
NEW QUESTION # 43
Which of the following is a reason to create a stored procedure?
Answer: A
Explanation:
A reason to create a stored procedure is to improve performance. A stored procedure is a set of SQL statements or commands that are stored and compiled in the database server, and can be executed by name or by a trigger. A stored procedure can improve performance by reducing the network traffic between the client and the server, as only the name or the parameters of the stored procedure need to be sent, rather than the entire SQL code. A stored procedure can also improve performance by reusing the same execution plan, as the stored procedure is compiled only once and cached in the server memory. The other options are either not true or not relevant for this purpose. For example, a stored procedure does not necessarily minimize storage space, as it still occupies space in the database server; a stored procedure does not bypass case sensitivity requirements, as it still follows the rules of the database system; a stored procedure does not give control of the query logic to the user, as it is defined and maintained by the database administrator or developer.
NEW QUESTION # 44
(Five minutes after a power failure occurred in a data center, a CO# system was automatically triggered.
Which of the following caused the CO# system to start?)
Answer: A
Explanation:
The correct answer is A. High temperatures activated the fire suppression system. According to CompTIA DataSys+ objectives, physical infrastructure protections are a critical component of database and data center reliability. CO# fire suppression systems are specifically designed to respond to fire-related conditions, not recovery metrics or cooling system logic. These systems are typically triggered by smoke detectors, heat sensors, or rapid temperature increases that indicate a fire or imminent fire risk following an event such as a power failure.
When a power outage occurs, backup systems such as generators and uninterruptible power supplies may activate. If these systems malfunction or generate excessive heat, temperature thresholds can be exceeded within minutes. DataSys+ materials emphasize that automated environmental controls are designed to protect equipment and data by suppressing fires quickly, often before flames are visible. CO# systems work by displacing oxygen, thereby extinguishing fire without damaging sensitive electronic equipment with water or chemical residue.
Options B and D are incorrect because RPO (Recovery Point Objective) and RTO (Recovery Time Objective) are disaster recovery planning metrics. RPO defines acceptable data loss measured in time, while RTO defines acceptable downtime. Neither setting directly triggers physical fire suppression systems. They are planning and policy metrics, not automated environmental controls.
Option C is also incorrect because cooling systems do not activate CO# fire suppression. Cooling failures may indirectly contribute to rising temperatures, but the CO# system itself is triggered by fire detection mechanisms, not by cooling system logic.
CompTIA DataSys+ clearly distinguishes between environmental controls (fire suppression, HVAC, power) and disaster recovery metrics (RPO, RTO). Therefore, option A best aligns with documented data center operational behavior and exam objectives.
NEW QUESTION # 45
Which of the following is part of logical database infrastructure security?
Answer: C
Explanation:
The option that is part of logical database infrastructure security is perimeter network. Perimeter network, also known as DMZ (Demilitarized Zone), is a network segment that lies between an internal network and an external network, such as the internet. Perimeter network provides an additional layer of security for the internal network by isolating and protecting the servers or services that are exposed to the external network, such as web servers, email servers, database servers, etc. Perimeter network also helps prevent unauthorized access or attacks from the external network to the internal network by using firewalls, routers, proxies, etc. The other options are either part of physical database infrastructure security or not related to database infrastructure security at all. For example, surveillance is a method of monitoring and recording physical activities or events in a location or resource; biometric access is a device that uses biological characteristics to control access to a physical location or resource; cooling system is a device or system that regulates the temperature and humidity of a location or resource.
NEW QUESTION # 46
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