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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Database Fundamentals | 24% | - SQL development, modification, and execution - Database structure types and characteristics - Impact of programming on database operations - Scripting methods and environments |
| Topic 2: Database Deployment | 16% | - Migration and integration strategies - Implementation, testing, and deployment phases - Database planning and design considerations |
| Topic 3: Data and Database Security | 23% | - Attack types and defense measures - Infrastructure security and threat mitigation - Authentication, authorization, and access control - Data security concepts and techniques - Governance, risk, and compliance |
| Topic 4: Database Management and Maintenance | 25% | - Data lifecycle management - Documentation and configuration management - Routine maintenance processes and tasks - Performance monitoring and reporting |
| Topic 5: Business Continuity | 12% | - High availability and fault tolerance - RTO and RPO definitions and application - Backup and restoration methods - Disaster recovery planning and strategies |
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NEW QUESTION # 110
(Which of the following describes the method in which data is encrypted first with an encryption key and then wrapped by a managed root key?)
Answer: B
Explanation:
The correct answer is D. Envelope encryption. CompTIA DataSys+ describes envelope encryption as a key management and data protection method that combines the efficiency of symmetric encryption with the security and manageability of hierarchical key structures. In this approach, data is first encrypted using a data encryption key (DEK), and then the DEK itself is encrypted (or "wrapped") using a key encryption key (KEK), often referred to as a managed root key.
Envelope encryption is widely used in enterprise database systems and cloud platforms because it provides strong security while simplifying key rotation and management. Encrypting large volumes of data directly with a root or master key would be inefficient and risky. Instead, DataSys+ explains that symmetric DEKs are used for fast data encryption, while the root key is used only to protect the DEKs. If a root key must be rotated or compromised, only the wrapped DEKs need to be re-encrypted-not the underlying data.
Option A, asymmetric encryption, uses public and private key pairs but is computationally expensive and not typically used to encrypt large datasets directly. Option B, DEK-based encryption, is incomplete because it describes only the use of data encryption keys and does not account for the additional wrapping layer that defines envelope encryption. Option C, symmetric encryption, correctly describes how data is encrypted but does not include the managed key hierarchy required by the question.
CompTIA DataSys+ emphasizes envelope encryption as a best practice for data-at-rest protection, particularly in environments that require compliance, auditing, and centralized key management. It is commonly implemented using hardware security modules (HSMs) or cloud key management services.
Therefore, the method where data is encrypted with a DEK and then wrapped with a managed root key is envelope encryption, making option D the correct and fully verified answer.
NEW QUESTION # 111
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 # 112
(An IT manager needs to create a workflow for a new application. Which of the following tools should the manager use to facilitate the creation of a workflow?)
Answer: C
Explanation:
The correct answer is B. UML. CompTIA DataSys+ identifies Unified Modeling Language (UML) as a standard visual modeling tool used to design, document, and communicate system behavior, structure, and workflows during application development. UML is especially well-suited for creating workflows because it provides multiple diagram types that clearly represent processes, interactions, and control flow within an application.
Common UML diagrams used for workflow modeling include activity diagrams, which show step-by-step business or system processes, and sequence diagrams, which illustrate interactions between system components over time. These diagrams help stakeholders understand how users, systems, and data interact throughout an application's lifecycle. DataSys+ emphasizes that UML improves collaboration between technical and non-technical stakeholders by providing a clear, standardized visual representation of application logic and flow.
Option A, ERD (Entity Relationship Diagram), is used to model database structure, including entities, attributes, and relationships. While ERDs are essential for schema design, they do not describe application workflows or process logic. Option C, ETL (Extract, Transform, Load), refers to data integration processes used in data warehousing and analytics; it is not a design or modeling tool for application workflows. Option D, ORM (Object-Relational Mapping), is a programming abstraction layer that maps application objects to database tables and does not provide workflow visualization capabilities.
CompTIA DataSys+ highlights the importance of proper planning and design tools during application development. UML enables IT managers to map workflows before implementation, reducing development errors, improving maintainability, and ensuring that business requirements are met.
Therefore, the most appropriate tool for facilitating the creation of a workflow for a new application is UML, making option B the correct and fully verified answer.
NEW QUESTION # 113
A database administrator is conducting a stress test and providing feedback to a team that is developing an application that uses the Entity Framework. Which of the following explains the approach the administrator should use when conducting the stress test?
Answer: A
Explanation:
The approach that the administrator should use when conducting the stress test is to capture business logic, check the performance of codes, and report findings. This will help the administrator to evaluate how well the application handles high volumes of data and transactions, identify any bottlenecks or errors in the code, and provide feedback to the development team on how to improve the application's efficiency and reliability. The other options are either too narrow or too broad in scope, and do not address the specific needs of an application that uses the Entity Framework. Reference: CompTIA DataSys+ Course Outline, Domain 4.0 Data and Database Security, Objective 4.3 Given a scenario, monitor database performance and security.
NEW QUESTION # 114
A database analyst notices a query statement is running slowly. Which of the following should the analyst review first?
Answer: A
Explanation:
Missing indexes are a common cause of slow queries, as indexes improve data retrieval speed by allowing efficient searching within tables.
NEW QUESTION # 115
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