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Performance Optimization & Monitoring Flashcards

7 cards from real CIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Performance Optimization & Monitoring flashcards as text
  1. Which practice is MOST important when optimizing database performance in a large enterprise system implementation?

    Answer: Regularly analyzing query performance, maintaining indexes, and archiving obsolete data

    Ongoing index maintenance, query analysis, and data archiving are foundational practices that keep database performance healthy as data volumes and usage patterns evolve.

  2. A CIS specialist discovers that a third-party integration is introducing a 5-second delay in every transaction. What is the recommended approach to diagnose this?

    Answer: Use API monitoring and logging to isolate whether the delay originates in the request, the third-party response, or the processing of the response

    Detailed API monitoring and logging helps pinpoint exactly where in the integration chain the delay occurs, enabling a targeted fix rather than a broad workaround.

  3. In performance optimization, what does 'throughput' measure?

    Answer: The number of transactions or operations the system can process within a given time period

    Throughput quantifies system capacity by measuring how many transactions or operations are completed per unit of time, making it a key indicator of overall performance.

  4. Which technique helps reduce server response time by offloading static asset delivery (images, scripts, stylesheets) to geographically distributed servers?

    Answer: Content Delivery Network (CDN) implementation

    A CDN delivers static assets from servers closest to the end user, reducing latency and relieving origin server load for a faster user experience.

  5. What is 'vertical scaling' in the context of system performance optimization?

    Answer: Increasing the resources (CPU, RAM, storage) of an existing server to handle greater demand

    Vertical scaling (scaling up) means upgrading the hardware capacity of a single server, as opposed to horizontal scaling which adds more servers.

  6. A CIS professional is tasked with reducing end-user perceived latency in a web-based ERP system. Which front-end optimization is MOST impactful?

    Answer: Minimizing and compressing JavaScript and CSS files, and enabling browser caching

    Minifying and compressing front-end assets reduces the amount of data transferred to the browser, and caching prevents repeated downloads, directly lowering perceived load times.

  7. During a performance review, you find that CPU utilization on the application server consistently spikes to 95% between 9–10 AM. What is the recommended next step?

    Answer: Profile the application to identify the specific processes or jobs consuming CPU during that window, then optimize or reschedule them

    Application profiling identifies the exact root cause of the CPU spike, enabling a precise optimization or rescheduling action rather than a costly or disruptive workaround.