Checkpoint 156-835 Exam Prep Course (Premium File)
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Question 86:

• Correct answer: Vertical scaling

• Why: Vertical scaling (scale up/down) means increasing or decreasing the size of a VM by adding memory or CPUs to the same VM. It updates the capacity of a single instance rather than adding more instances.

• How it compares to other terms:

• Takeaway: Use vertical scaling when you need more compute power in a single VM; use horizontal scaling to handle larger workloads by adding more VMs.

Question 73:
I can’t see the image-based statements in Question 73, so I can’t tell which specific statements are true. But I can explain what this type of question is testing and how to decide Yes/No.
What Question 73 is testing

• Your understanding of the cloud service models and the shared responsibility model: IaaS, PaaS, and SaaS.
• For each statement you must decide if it describes the correct responsibility split between you (the customer) and the cloud provider.

• IaaS: You manage the guest OS, applications, and data. The provider manages virtualization, servers, storage, and networking.
• PaaS: You manage the applications and data. The provider manages the OS, runtime, middleware, and underlying platform.
• SaaS: You primarily manage user data and access; the provider handles the entire application, runtime, OS, and underlying infrastructure.

• If a statement says you’re responsible for patching the operating system, that’s true for IaaS but false for PaaS/SaaS.
• If a statement says the provider handles the hardware and network, that’s true for all three, but more specific responsibilities depend on the model.

Question 25:

• Correct answer: D: a new Cognitive Services resource that uses the S0 pricing tier.

• Why: To enable OCR and text analytics in a Cognitive Search enrichment pipeline, you must attach a Cognitive Services resource to the skillset. For cost efficiency on a large document set, choose the base standard tier (S0) rather than higher tiers or a free tier, which may limit enrichments. The OCR capability comes from the Cognitive Services (Computer Vision/Read) and the S0 tier provides a balance of capability and cost.

Question 20:

• Correct answer: D and E.

• Why: Provisioning a QnA Maker service creates:

• Why not the others:

• Quick note: After provisioning, check RG1 to verify the new App Service and Cognitive Search resources.

what if different between speech recognizer and speach synthesizer

• Speech Recognizer (Speech-to-Text): Converts audio input (live mic or audio file) into text. Output is transcripts with timestamps, confidence scores, and optional punctuation. Use cases: meeting transcripts, voice commands, real-time captions.

• Speech Synthesizer (Text-to-Speech): Converts text (or SSML) into audio output. Output is audio data (wav/mp3 or streaming). Use cases: voice prompts, IVR responses, accessibility narrations. You can choose voices, languages, and adjust prosody (rate, pitch, volume).

• Key differences:

• Quick example: Use Speech Recognizer to transcribe a meeting; use Speech Synthesizer to read a script aloud in a chosen voice.

Question 17:

• Correct answer: A Anomaly Detector.

• Why: Anomaly Detector is designed to identify unusual values in time-series data. Your scenario has 100 machines × 50 sensors, generating minute-by-minute data, totaling 5,000 time-series. Anomaly Detector can process each time-series (or batches of series) to flag deviations that may indicate potential failures, which is exactly what you need for predictive maintenance.

• Why not the others:

• Practical note: with 5,000 time series, you’d typically run anomaly detection per series (potentially in parallel) and aggregate results to identify which machines/sensors warrant attention.

Question 12:

• Correct answers: A, B, F.

• Why:

• Why the other options are incorrect:

GIF also we are using ?

• No, GIF is not supported for Form Recognizer input. The allowed formats are JPG, PNG, PDF (text or scanned), or TIFF.
• If you have GIFs, convert them to one of the supported formats (e.g., convert to JPG/PNG or PDF) before training or uploading.
• Also ensure each file is under 50 MB and, when possible, use text-embedded PDFs to reduce errors.

Question 11:

• Correct answers: A, C, F.

• Why:

• So A, C, and F are the three files that meet these input requirements; the other options (B, D, E) likely fail one of the criteria (wrong format or too large). If you want, describe the formats of A, C, and F to confirm they meet all three criteria.

Question 10:
The correct answer is B: A new query key was generated.
Explanation:

• The REST call to:

• Since you specified Key2, only the secondary key is regenerated; the primary key (Key1) remains unchanged.
• This operation updates the Cognitive Services account keys within Azure, not anything in Azure Key Vault.
• “Query key” refers to the key used to authorize API requests to the service (subscription key), so regenerating Key2 yields a new value for that key.