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Implement an instrumentation strategy →hardMultiple ChoiceObjective-mapped

AZ-400 Implement an instrumentation strategy Practice Question

This AZ-400 practice question tests your understanding of implement an instrumentation strategy. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

Exhibit

Refer to the exhibit.

```json
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspaceName": {
      "type": "string"
    },
    "location": {
      "type": "string"
    }
  },
  "resources": [
    {
      "type": "Microsoft.OperationalInsights/workspaces",
      "apiVersion": "2022-10-01",
      "name": "[parameters('workspaceName')]",
      "location": "[parameters('location')]",
      "properties": {}
    },
    {
      "type": "Microsoft.OperationalInsights/workspaces/savedSearches",
      "apiVersion": "2020-08-01",
      "name": "[concat(parameters('workspaceName'), '/PipelineFailures')]",
      "dependsOn": [
        "[resourceId('Microsoft.OperationalInsights/workspaces', parameters('workspaceName'))]"
      ],
      "properties": {
        "category": "Azure Pipelines",
        "displayName": "Pipeline Failures in Last 24 Hours",
        "query": "AzureDevOpsPipelineEvents_CL | where TimeGenerated > ago(24h) and Result_s == 'Failed'"
      }
    }
  ]
}
```

Refer to the exhibit. You deploy this ARM template to create a Log Analytics workspace and a saved search. After deployment, you notice that the saved search returns no results even though there are failed pipeline runs. What is the most likely reason?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "most likely"

    Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Question 1hardmultiple choice
Full question →

Exhibit

Refer to the exhibit.

```json
{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspaceName": {
      "type": "string"
    },
    "location": {
      "type": "string"
    }
  },
  "resources": [
    {
      "type": "Microsoft.OperationalInsights/workspaces",
      "apiVersion": "2022-10-01",
      "name": "[parameters('workspaceName')]",
      "location": "[parameters('location')]",
      "properties": {}
    },
    {
      "type": "Microsoft.OperationalInsights/workspaces/savedSearches",
      "apiVersion": "2020-08-01",
      "name": "[concat(parameters('workspaceName'), '/PipelineFailures')]",
      "dependsOn": [
        "[resourceId('Microsoft.OperationalInsights/workspaces', parameters('workspaceName'))]"
      ],
      "properties": {
        "category": "Azure Pipelines",
        "displayName": "Pipeline Failures in Last 24 Hours",
        "query": "AzureDevOpsPipelineEvents_CL | where TimeGenerated > ago(24h) and Result_s == 'Failed'"
      }
    }
  ]
}
```

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

The custom table 'AzureDevOpsPipelineEvents_CL' does not exist in the workspace.

Option C is correct because the query uses a custom log table 'AzureDevOpsPipelineEvents_CL' which requires a custom table or data connector to be created first. Option A is wrong because the apiVersion is valid for workspace. Option B is wrong because the API version for savedSearches is valid. Option D is wrong because the category is just a label.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    The savedSearch API version is not supported.

    Why it's wrong here

    2020-08-01 is supported.

  • ✗

    The Log Analytics workspace API version is incorrect.

    Why it's wrong here

    2019-04-01 is valid for workspace.

  • ✓

    The custom table 'AzureDevOpsPipelineEvents_CL' does not exist in the workspace.

    Why this is correct

    Custom tables must be created or data ingested first.

    Clue confirmation

    The clue word "most likely" in the question point toward this answer.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    The category 'Azure Pipelines' is misspelled.

    Why it's wrong here

    Category is just a label.

Common exam traps

Common exam trap: answer the scenario, not the keyword

Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.

Detailed technical explanation

How to think about this question

This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.
  • Use explanations to understand the rule behind the answer.

TExam Day Tips

  • Underline the problem statement mentally.
  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.

What to study next

Got this wrong? Here's your next step.

Identify which AZ-400 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

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FAQ

Questions learners often ask

What does this AZ-400 question test?

Implement an instrumentation strategy — This question tests Implement an instrumentation strategy — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The custom table 'AzureDevOpsPipelineEvents_CL' does not exist in the workspace. — Option C is correct because the query uses a custom log table 'AzureDevOpsPipelineEvents_CL' which requires a custom table or data connector to be created first. Option A is wrong because the apiVersion is valid for workspace. Option B is wrong because the API version for savedSearches is valid. Option D is wrong because the category is just a label.

What should I do if I get this AZ-400 question wrong?

Identify which AZ-400 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

About these practice questions

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Last reviewed: Jun 20, 2026

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This AZ-400 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-400 exam.