Explain landing zone components (networking, security, governance, identity)
Frame migration risk in terms of business continuity and rollback strategy
0 / 15 completed
1 / 15
The interviewer asks: "How do you choose the right migration strategy (one of the 6Rs) for a given application?" Which answer best demonstrates technical depth?
Option B is the strongest: it starts with tooled discovery (AWS Migration Hub, Azure Migrate), defines each of the 6Rs with its selection criteria and typical portfolio percentage, explains the risk-effort-benefit spectrum across the Rs, names specific SaaS replacements for Repurchase, gives a concrete R-score methodology with five input dimensions, and links the score to wave sequencing. Options A and D describe the framework at a high level but give no decision methodology or tooling. Option C correctly identifies rehost as the velocity leader but doesn't apply the full framework. Structure: tooled discovery → define each R with criteria → risk-effort-benefit spectrum → R-score methodology → link to wave sequencing.
2 / 15
The interviewer asks: "Describe the migration factory approach and how you would set one up for a 200-application portfolio." Which answer best demonstrates technical depth?
Option B is the strongest: it defines each factory component (discovery, wave planning, runway, team structure, automation, hypercare) with specific details (10-20 apps per wave, runbook 60-70% effort reduction, 72-hour hypercare), names specific tools (AWS Migration Hub, Azure Migrate), specifies the team composition with a RACI for cutover, defines three success metrics with target values, and delivers the key factory insight. Options C and D describe the process at a high level without the component detail, metrics, or key insight. Structure: six components with specifics → team composition → automation approach → three success metrics with targets → key factory insight.
3 / 15
The interviewer asks: "What are the key components of a cloud landing zone, and how do you design one from scratch?" Which answer best demonstrates technical depth?
Option B is the strongest: it names six pillars with specific technical detail for each (Transit Gateway vs Virtual WAN, AWS IAM Identity Center, SCP examples with concrete rules, GuardDuty, Route 53 Resolver), names specific vendor products (Control Tower, Azure Landing Zone Accelerator, Okta, Azure AD), distinguishes preventive from detective controls, and closes with the design principle. Options A and C name the components without technical detail. Option D is concrete but misses identity federation, DNS, cost governance, and the design principle. Structure: six pillars each with technical specifics → tooling names → preventive vs detective controls distinction → design principle.
4 / 15
The interviewer asks: "How do you build the Total Cost of Ownership (TCO) analysis to justify a cloud migration business case?" Which answer best demonstrates technical depth?
Option B is the strongest: it enumerates five cost categories for both sides of the comparison, explicitly covers transition costs as a third category, names the often-missed savings (hardware refresh avoidance, lease renegotiation, BYOL), specifies the 3-5 year NPV model with three scenario sensitivity analysis, and — critically — names three common mistakes that distinguish an experienced practitioner. Options C and D describe the approach correctly but at a level of detail that doesn't demonstrate depth. Option A names the right tool (AWS Pricing Calculator, not AWS TCO Calculator which doesn't exist) but shows no modelling methodology. Structure: on-premises cost categories → cloud cost categories → transition costs → hidden savings → NPV + sensitivity analysis → three common mistakes.
5 / 15
The interviewer asks: "What is your approach to migration risk management, particularly for business-critical applications?" Which answer best demonstrates technical depth?
Option B is the strongest: it structures risk management across two categorisation dimensions, specifies tier-specific controls with concrete details (30-day parallel run, tested failback in staging, 2-week hypercare, executive gates), names universal controls with specific examples (CMDB vs actual network traffic, smoke test components), and closes with the key principle that transforms a generic "have a rollback plan" into a testable engineering standard. Options C and D mention the right elements (tiering, rollback, testing) but without the specifics that demonstrate experience. Structure: two-dimension risk categorisation → tier-specific controls with durations → universal controls → key principle about tested vs assumed rollback.
6 / 15
Reviewer: 'This PR attempts to migrate the user authentication service to AWS Lambda. However, I'm seeing a significant increase in cold starts after the migration. Can you explain your approach and any mitigation strategies you considered?' You are responding as the developer who implemented this change. Which response best addresses the reviewer's concern?
This question tests your understanding of common Lambda performance issues (cold starts) and appropriate mitigation techniques. Simply optimizing the code isn't enough – you need to demonstrate awareness of configuration options like provisioned concurrency and strategies like API Gateway integration and caching. The correct answer highlights a practical, layered approach.
7 / 15
Sarah (Cloud Migration Specialist): 'Hey team, we're seeing unexpected latency spikes after migrating the e-commerce platform to Azure. The database replication lag is significantly higher than expected. Any initial thoughts?' You are responding in a Slack channel to Sarah. Which response would be most helpful and demonstrate your understanding of the situation?
The key here is diagnosing the root cause. While scaling might be a solution eventually, identifying the replication lag as the primary issue demonstrates critical thinking and an understanding of database migration challenges. Options A and C are reactive and don't address the specific symptom.
8 / 15
You're writing the PR description for a change that involved migrating a legacy application from on-premise to Google Cloud Platform. The description should be concise and informative. Which of the following is the MOST effective approach?
A good PR description should provide context, detail the technologies used, and highlight important considerations like monitoring and future plans. Option 2 is thorough, demonstrating an understanding of the migration's scope and next steps – crucial for collaboration and maintainability. The other options are too brief or focus on superficial changes.
9 / 15
During your daily stand-up, the team lead asks: 'John, what's been blocking you on migrating the CRM system to AWS?' Which response best conveys your progress and potential roadblocks effectively?
Honest communication is vital during stand-ups. This answer clearly articulates your progress (infrastructure setup) and identifies a specific dependency – the DBA scripts – with an expected follow-up action. It demonstrates proactivity in managing potential delays and keeping the team informed. Option A is evasive, while options B and C are incomplete.
10 / 15
A company is considering migrating its core financial application to Azure. During a technical discussion, the architect asks: 'What factors would you consider when determining whether to use a lift-and-shift approach versus re-platforming?' Which of the following represents the MOST comprehensive answer?
This question assesses your understanding of different migration strategies beyond simple definitions. A good answer recognizes that the best approach depends on a holistic assessment of multiple technical and business considerations. It highlights the importance of evaluating dependencies, compatibility, refactoring needs, and timelines – key factors in making an informed decision.
11 / 15
Reviewer: 'This PR attempts to migrate the user authentication service to AWS Lambda. However, I'm seeing a significant increase in cold starts after the migration. Can you explain your approach and any mitigation strategies you considered?' You are responding as the developer who implemented this change. Which response best addresses the reviewer's concern?
This question tests your understanding of common Lambda performance issues (cold starts) and appropriate mitigation techniques. Simply optimizing the code isn't enough – you need to demonstrate awareness of configuration options like provisioned concurrency and strategies like API Gateway integration and caching. The correct answer highlights a practical, layered approach.
12 / 15
Sarah (Cloud Migration Specialist): 'Hey team, we're seeing unexpected latency spikes after migrating the e-commerce platform to Azure. The database replication lag is significantly higher than expected. Any initial thoughts?' You are responding in a Slack channel to Sarah. Which response would be most helpful and demonstrate your understanding of the situation?
The key here is diagnosing the root cause. While scaling might be a solution eventually, identifying the replication lag as the primary issue demonstrates critical thinking and an understanding of database migration challenges. Options A and C are reactive and don't address the specific symptom.
13 / 15
You're writing the PR description for a change that involved migrating a legacy application from on-premise to Google Cloud Platform. The description should be concise and informative. Which of the following is the MOST effective approach?
A good PR description should provide context, detail the technologies used, and highlight important considerations like monitoring and future plans. Option 2 is thorough, demonstrating an understanding of the migration's scope and next steps – crucial for collaboration and maintainability. The other options are too brief or focus on superficial changes.
14 / 15
During your daily stand-up, the team lead asks: 'John, what's been blocking you on migrating the CRM system to AWS?' Which response best conveys your progress and potential roadblocks effectively?
Honest communication is vital during stand-ups. This answer clearly articulates your progress (infrastructure setup) and identifies a specific dependency – the DBA scripts – with an expected follow-up action. It demonstrates proactivity in managing potential delays and keeping the team informed. Option A is evasive, while options B and C are incomplete.
15 / 15
A company is considering migrating its core financial application to Azure. During a technical discussion, the architect asks: 'What factors would you consider when determining whether to use a lift-and-shift approach versus re-platforming?' Which of the following represents the MOST comprehensive answer?
This question assesses your understanding of different migration strategies beyond simple definitions. A good answer recognizes that the best approach depends on a holistic assessment of multiple technical and business considerations. It highlights the importance of evaluating dependencies, compatibility, refactoring needs, and timelines – key factors in making an informed decision.
What does "Cloud Migration Specialist Interview Questions" cover?
5 exercises — choose the best-structured answer to Cloud Migration Specialist interview questions covering the 6Rs migration strategy, migration factory approach, landing zone design, TCO analysis, and migration risk management.
How many questions are in this interview set?
This set has 15 exercises, each with a full explanation.
Is this exercise free to use?
Yes. Every exercise on CoderSlingo, including this one, is free to use with no account, sign-up, or paywall.
Do these exercises include model answers?
Yes. Each interview question gives you several possible responses and asks you to pick the one that communicates most clearly and completely — the explanation then breaks down exactly why that answer works, including the specific vocabulary a strong candidate would use.
What if I choose an answer that isn't the strongest one?
You'll see which option was correct and read a full explanation of why it's stronger than the alternatives, plus the key vocabulary and phrasing worth reusing in a real interview.
Can I retry the questions?
Yes — use the "Try again" button on the results screen to reset and go through the set again.
Is this the same as a real technical or behavioural interview?
No — it's focused practice for the language side of interviewing: recognising which phrasing sounds precise and confident versus vague, and knowing the vocabulary interviewers expect for this role. It won't replace mock interviews, but it builds the vocabulary you'll need in one.
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Every question is written by the CoderSlingo team based on real technical interview patterns for this role, then reviewed for accuracy and clarity.