nutanix‐database‐automation‐ncp‐db‐ncp‐db‐65‐exam‐questions_9 - itnett/FTD02H-N GitHub Wiki
To create a comprehensive "Do" and "Don't" answer guide for Section 1 – Describe NDB Concepts, here is a detailed breakdown for each objective, focusing on what to do (correct choices) and what not to do (incorrect choices) when answering questions related to Nutanix Database Service (NDB) concepts.
Section 1 – Describe NDB Concepts
Objective 1.1: Define Database and NDB Terminology
| Concept | Do Not Answer This (Incorrect Choice) | Choosing This is the Safest Choice (Correct Answer) |
|---|---|---|
| NDB Software Compatibility | "NDB is compatible with all database versions and platforms." | "NDB supports specific versions of MSSQL, Oracle, PostgreSQL, MySQL, MariaDB, and MongoDB." |
| Time Machine SLAs | "SLAs are only for backup purposes." | "SLAs define snapshot frequency, retention periods, and recovery objectives (RPO/RTO)." |
| Data Access Management (DAM) | "DAM is for managing database snapshots only." | "DAM controls data availability and access permissions across multiple Nutanix clusters." |
| Provisioning Profiles | "Provisioning profiles are only for storage settings." | "Provisioning profiles include Compute, Network, and Software settings for database VMs." |
| Copy Data Management (CDM) | "CDM focuses on data replication between clusters." | "CDM manages creation, refresh, and retention of database clones and snapshots." |
| Greenfield Databases | "Greenfield refers to databases that are registered with NDB." | "Greenfield databases are newly provisioned databases using NDB." |
| Brownfield Databases | "Brownfield databases are newly created and managed by NDB." | "Brownfield databases are pre-existing databases registered with NDB for management." |
| Database Engine Support | "NDB supports any open-source database." | "NDB supports specific versions of major databases like Oracle, PostgreSQL, etc." |
| Provisioning Profiles Definition | "Profiles are only used for software updates." | "Profiles manage compute, network, and software configurations for database provisioning." |
Objective 1.2: Describe NDB Features and Benefits
| Feature | Do Not Answer This (Incorrect Choice) | Choosing This is the Safest Choice (Correct Answer) |
|---|---|---|
| Provisioning | "Provisioning is always manual and requires CLI operations." | "Provisioning can be done using One-Click Provisioning through the NDB GUI." |
| Patching | "Patching does not require scheduling or profiles." | "Patching can be automated with One-Click Patching and requires software profiles." |
| Cloning | "Cloning is only for test environments." | "Cloning can be used for development, testing, and disaster recovery scenarios." |
| Data Protection | "Data protection is achieved only through regular backups." | "Data protection uses snapshots, backups, SLAs, and PITR for comprehensive coverage." |
| Database Provisioning Benefits | "Provisioning only reduces setup time." | "Provisioning with NDB streamlines deployment, ensures consistency, and reduces errors." |
| Database Patching Benefits | "Patching can only be done during maintenance windows." | "Patching can be automated, reducing downtime and manual intervention." |
| Database Cloning Benefits | "Cloning does not support real-time data refresh." | "Cloning with NDB supports real-time data refresh and reduces storage costs." |
| Data Protection Benefits | "Data protection is limited to snapshots only." | "Data protection includes snapshots, backups, and log retention policies." |
| Provisioning Process | "Provisioning does not involve user-defined profiles." | "Provisioning uses Compute, Network, and Software profiles to streamline deployment." |
| Patching Process | "Patching is always disruptive to database operations." | "Patching can be done with minimal disruption using rolling patching and automated tools." |
Detailed Explanations for Correct Choices:
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NDB Software Compatibility: Focus on specific database versions that NDB supports. Knowing which versions of MSSQL, Oracle, PostgreSQL, MySQL, MariaDB, and MongoDB are supported is critical.
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Time Machine SLAs: Understand that Time Machine SLAs are central to managing data retention policies, snapshots, and recovery objectives, not just backups.
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Data Access Management (DAM): DAM policies are crucial for managing data access across multiple clusters, not just for snapshots.
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Provisioning Profiles: These are comprehensive and include Compute, Network, and Software settings, rather than being limited to storage or network settings only.
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Copy Data Management (CDM): CDM deals with managing the lifecycle of database copies, including creation, refreshing, and retention – it’s not about simple replication.
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Greenfield and Brownfield Databases: Greenfield databases are newly provisioned using NDB, while Brownfield databases are existing ones that are registered with NDB.
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Database Provisioning and Benefits: One-click provisioning makes database setup fast, consistent, and error-free.
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Patching Benefits: Automates the patching process, reducing downtime and manual work.
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Cloning Benefits: Supports multiple use cases, including DR, development, and testing, while saving on storage costs.
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Data Protection: Combines various tools like snapshots, backups, and logs to protect data comprehensively.
Final Tips:
- Focus on Compatibility: Always refer to the specific versions and configurations that are compatible with NDB.
- Understand SLAs and Profiles: Know the purpose and scope of SLAs and the different types of profiles used in NDB.
- Know the NDB Features and Benefits: Understand how provisioning, patching, cloning, and data protection work, and what benefits they bring.
- Practice Key Definitions: Make sure you are clear on the definitions of critical terms like Greenfield, Brownfield, CDM, and DAM.
By following this guide, you’ll be able to recognize correct answers quickly and avoid common pitfalls when dealing with NDB concepts on the exam.