Infrastructure as CodeIntermediate20 submodules

ARM Templates and Bicep

Strong answers distinguish ARM as Azure deployment engine from template languages, cover implicit dependencies, scopes, what-if, idempotency, modules, and the danger of complete mode.

Answer with mechanism, evidence, and trade-offs

Strong answers distinguish ARM as Azure deployment engine from template languages, cover implicit dependencies, scopes, what-if, idempotency, modules, and the danger of complete mode.

Strong-answer signals

  • Explain ARM control-plane deployment
  • Read and author ARM JSON
  • Create Bicep resources and modules
  • Use parameters, loops, conditions, functions, dependencies, and outputs
  • Choose deployment scope and mode safely

ARM Templates and Bicep answer flow

Use this flow to structure design and scenario answers from context through evidence and recovery.

  1. 01
    Author declarationARM Templates and Bicep stage 1: author declaration with an auditable result before the next stage begins.
  2. 02
    Resolve parametersARM Templates and Bicep stage 2: resolve parameters with an auditable result before the next stage begins.
  3. 03
    Build dependency graphARM Templates and Bicep stage 3: build dependency graph with an auditable result before the next stage begins.
  4. 04
    Preview changeARM Templates and Bicep stage 4: preview change with an auditable result before the next stage begins.
  5. 05
    Submit ARM deploymentARM Templates and Bicep stage 5: submit arm deployment with an auditable result before the next stage begins.
  6. 06
    Capture outputs and operationsARM Templates and Bicep stage 6: capture outputs and operations with an auditable result before the next stage begins.

Design, diagnose, and defend your decision

A large ARM template is duplicated by environment and complete-mode deployments have removed unmanaged resources. Refactor it into Bicep modules with safe parameterization and preview controls.

A complete response should include
  • Business impact and technical constraints
  • Architecture or execution sequence
  • Identity, security, and evidence
  • Failure handling and recovery
  • Metrics and next improvement

Five questions to practise first

Model answers included
01ARM architectureWhat problem does ARM architecture solve, how does it work in ARM Templates and Bicep, and what is it commonly confused with?

Define the mechanism and ownership boundary first. Explain that it defines the major responsibilities, boundaries, and control flow that engineers use before selecting an implementation detail, then contrast it with the adjacent responsibilities represented by the module prerequisites and the following JSON templates concept. Close with a concrete validation signal.

02JSON templatesHow would you implement and validate JSON templates for a production workload?

Start from workload constraints and existing state. Define inputs and types, validate assumptions, execute an idempotent change, expose outputs, handle failure, and retain a clear log. Include identity, dependencies, normal and failure tests, monitoring, and an explicit recovery decision.

03ParametersA change involving Parameters causes a production symptom. What evidence would you inspect and how would you recover safely?

Establish scope and recent change, inspect the native configuration and event or log evidence, test the dependency boundary, apply the smallest reversible mitigation, verify user impact has recovered, and retain the findings for permanent prevention.

04VariablesWhat problem does Variables solve, how does it work in ARM Templates and Bicep, and what is it commonly confused with?

Define the mechanism and ownership boundary first. Explain that it turns a manual or repeated decision into versioned, parameterized, testable, and observable execution, then contrast it with the adjacent responsibilities represented by the preceding Parameters concept and the following Resources concept. Close with a concrete validation signal.

05ResourcesHow would you implement and validate Resources for a production workload?

Start from workload constraints and existing state. State the requirement, configure the smallest working unit, connect its dependencies, test success and failure, and document operational ownership. Include identity, dependencies, normal and failure tests, monitoring, and an explicit recovery decision.

60 topic-aware interview questions

20 submodules
03

Parameters

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
04

Variables

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
05

Resources

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
06

Outputs

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
07

Functions

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
08

Dependencies

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
11

Bicep syntax

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
12

Parameters

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
13

Variables

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
14

Resources

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
15

Modules

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
16

Outputs

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
17

Loops

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set
18

Conditions

Concept, implementation, and troubleshooting questions with model answers, evaluation points, follow-ups, and weak-answer warnings.

Open question set