300-910 Question #123: Real Exam Question with Answer & Explanation

Question

A development team is in the design phase of the SDLC for a new application. Application requirements must be identified to provide visibility into application health and enable effective monitoring. Which element must be added to the development process to accomplish this goal?

Options

• AMake all services asynchronous and monitor the length of all queues.
• BPrint debug information in production logs for maximum visibility.
• CDefine the business KPI that the product owner uses.
• DBuild web robots to test system availability and business transactions.

Explanation

To ensure effective monitoring and visibility into application health during the design phase, it is crucial to define business Key Performance Indicators (KPIs) that align with product owner objectives.

Common mistakes.

• A. While asynchronous services and queue monitoring can be valuable for performance and scalability, making all services asynchronous might not be necessary or appropriate for every application and doesn't inherently define what to monitor for overall health visibility across all business requirements.
• B. Printing debug information in production logs can provide excessive, noisy data, pose security risks by exposing sensitive sensitive details, and negatively impact performance, making it an unsuitable practice for general application health visibility.
• D. Building web robots for testing system availability and business transactions is a form of synthetic monitoring, which is important for testing, but defining what to monitor (the KPIs) must precede the implementation of how to monitor it.

Concept tested. Defining monitoring requirements with business KPIs.

Reference. https://learn.microsoft.com/en-us/azure/architecture/guide/design-principles/monitor-health

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