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NEW QUESTION # 108
A database administrator needs a tool to document and explain the relationships between data in an organization's database. Which of the following is the best tool to accomplish this task?
Answer: A
Explanation:
The best tool for the database administrator to document and explain the relationships between data in an organization's database is a UML editor. A UML editor is a software application that allows users to create, edit, and visualize diagrams using the Unified Modeling Language (UML).
UML is a standard language for modeling software systems and their components, such as classes, objects, relationships, behaviors, etc. UML can also be used to document and explain the relationships between data in an organization's database by creating entity relationship diagrams (ERDs), which are graphical representations of the entities (tables), attributes (columns), and relationships (constraints) in a database. A UML editor can help the administrator to document and explain the relationships between data by providing features such as drag-and- drop, templates, symbols, validation, etc. The other options are either not suitable or not optimal for this task. For example, a text editor is a software application that allows users to create and edit plain text files; a word processor is a software application that allows users to create and edit text documents; an SQL query is a statement that performs an operation on a database using Structured Query Language (SQL).
NEW QUESTION # 109
Which of the following is a result of an on-path attack on a system?
Answer: A
Explanation:
A result of an on-path attack on a system is a Wi-Fi network that redirects to clones of legitimate websites. An on-path attack is a type of attack that intercepts and modifies the traffic between two parties without their knowledge or consent. An attacker can use an on-path attack to create a rogue Wi-Fi network that mimics a legitimate one, and then redirect the users to fake websites that look like the ones they intended to visit. The attacker can then steal the users' personal or financial information, such as usernames, passwords, credit card numbers, or bank account details. The other options are either results of different types of attacks or not related to attacks at all. For example, a website that has crashed and is no longer accessible may be a result of a denial-of-service attack, an email from an unknown source requesting bank account details may be a result of a phishing attack, and a web application that returns the addresses of its customers may be a result of a poor design or a data breach.
NEW QUESTION # 110
(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 # 111
Which of the following is most likely to prevent tampering with server hardware that houses data?
Answer: B
Explanation:
The option that is most likely to prevent tampering with server hardware that houses data is biometric locks. Biometric locks are devices that use biological characteristics, such as fingerprints, facial recognition, iris scan, etc., to control access to a physical location or resource. Biometric locks help prevent tampering with server hardware that houses data by restricting unauthorized entry or theft of the hardware by intruders or attackers. Biometric locks also provide higher security and convenience than other types of locks, such as keys or passwords, which can be lost, stolen, or forgotten. The other options are either not related or not effective for this purpose. For example, a strong password policy is a set of rules or standards for creating and managing passwords for user accounts or systems; a network firewall is a device or software that controls the incoming and outgoing traffic on a network based on a set of rules or policies; surveillance cameras are devices that capture and record video footage of a physical location or resource. 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 # 112
Which of the following describes the purpose of a snapshot?
Answer: B
Explanation:
The purpose of a snapshot is to create an image of a database. A snapshot is a copy of the state and content of a database at a specific point in time. A snapshot can be used for various purposes, such as backup and recovery, testing and development, reporting and analysis, etc. A snapshot can be created using various techniques, such as full copy, incremental copy, differential copy, etc. A snapshot can also be created using various tools or commands provided by the database system or software.
NEW QUESTION # 113
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