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| Section | Weight | Objectives |
|---|---|---|
| Database Support, Maintenance & Optimization | 20% | - Query Optimization - Patch Management - Index Management - Database Security (Users, Roles, Permissions) - Performance Monitoring - Backup and Recovery Procedures |
| Database Deployment & Planning | 19% | - High Availability Architecture - Database Server Requirements - Database Clustering - Capacity Planning - Disaster Recovery Planning - Replication Strategies |
| Data Analytics & Engineering | 19% | - Reporting Concepts - Data Visualization Basics - Data Governance - Data Warehousing Concepts - ETL Processes - Data Quality |
| Database Fundamentals | 20% | - CAP Theorem - Data Normalization - ACID Properties - Data Models (Relational, NoSQL, etc.) - Database Design Principles - Database Concepts and Architecture |
| Database Implementation | 22% | - Triggers - Stored Procedures and Functions - Data Types and Constraints - Database Objects (Tables, Views, Indexes) - Data Import/Export - SQL DDL Statements |
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NEW QUESTION # 77
Which of the following transactions is allowed in a shared lock?
Answer: D
NEW QUESTION # 78
Which of the following is an attack in which an attacker hopes to profit from locking the database software?
Answer: A
Explanation:
The attack in which an attacker hopes to profit from locking the database software is ransomware. Ransomware is a type of malware that encrypts the data or files on a system or network and demands a ransom from the victim to restore them. Ransomware can target database software and lock its access or functionality until the victim pays the ransom, usually in cryptocurrency. Ransomware can cause serious damage and loss to the victim, as well as expose them to further risks or threats. Ransomware can be delivered through various methods, such as phishing emails, malicious attachments, compromised websites, etc. The other options are either different types of attacks or not related to locking database software at all. For example, spear phishing is a type of phishing attack that targets a specific individual or organization with personalized or customized emails; SQL injection is a type of attack that inserts malicious SQL statements into an input field or parameter of a web application to manipulate or compromise the underlying database; on-path is a type of attack that intercepts and modifies the data in transit between two parties on a network. Reference: CompTIA DataSys+ Course Outline, Domain 4.0 Data and Database Security, Objective 4.4 Given a scenario, identify common types of attacks against databases
NEW QUESTION # 79
A company needs to prepare a document that establishes the responsibilities, metrics, penalties, and other generalities that a provider would have to fulfill for customers to use its platforms.
Which of the following documents meets these requirements?
Answer: C
Explanation:
The document that meets these requirements is an SLA. An SLA, or Service Level Agreement, is a contract between a service provider and a customer that defines the scope, quality, and terms of the service delivery. An SLA typically includes the responsibilities, metrics, penalties, and other generalities that a provider would have to fulfill for customers to use its platforms. An SLA also establishes the expectations and obligations of both parties, as well as the methods for measuring and monitoring the service performance. The other options are either different types of documents or not related to service delivery. For example, a DOU, or Data Use Agreement, is a document that governs the sharing and use of data between parties; an MOU, or Memorandum of Understanding, is a document that expresses a mutual agreement or intention between parties; a SOW, or Statement of Work, is a document that describes the specific tasks and deliverables of a project or contract.
NEW QUESTION # 80
A database administrator has configured a Resource Governor with three resource pools. The first resource pool is assigned a minimum CPU and memory value of 25%. The second resource pool is assigned a minimum CPU and memory value of 35%. The database administrator wants to assign the maximum CPU and the maximum resource pool to the third resource. Which of the following is the maximum memory the database administrator should assign to the third resource?
Answer: D
Explanation:
The first and second resource pools have a combined minimum memory allocation of 25% + 35%
= 60%. The maximum memory that can be assigned to the third resource pool is the remaining memory, which is 100% - 60% = 40%.
NEW QUESTION # 81
Which of the following offers a DBA the ability to gather important performance metrics to help optimize SQL queries and parameters for a database instance?
Answer: A
Explanation:
Database monitoring provides performance metrics and insights that help a DBA identify bottlenecks and optimize SQL queries and parameters for better performance.
NEW QUESTION # 82
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