CSI Cloud Migration & Multi-Cloud 3 — Questions and Answers
Question 1: A systems integrator is designing a multi-cloud architecture to avoid vendor lock-in. Which practice best supports this goal?
- Using proprietary managed services from each cloud provider
- Adopting open standards and containerization with Kubernetes (Correct answer)
- Deploying all workloads exclusively on one provider's serverless platform
- Using provider-specific IAM for all identity management
Correct answer: Adopting open standards and containerization with Kubernetes
Open standards and Kubernetes enable workload portability across cloud providers, reducing dependency on any single vendor's proprietary stack.
Question 2: What does the term 'cloud bursting' describe in a hybrid cloud context?
- A security incident causing data exfiltration to a public cloud
- Automatically scaling workloads into the public cloud when on-premises capacity is exceeded (Correct answer)
- Migrating all workloads to the cloud in a single cutover
- Splitting network traffic across multiple ISPs
Correct answer: Automatically scaling workloads into the public cloud when on-premises capacity is exceeded
Cloud bursting allows on-premises applications to dynamically overflow excess load to a public cloud provider during peak demand periods.
Question 3: In a multi-cloud environment, which security challenge is most difficult to manage compared to a single-cloud deployment?
- DDoS protection
- Unified identity and access management across providers (Correct answer)
- Firewall rule creation
- TLS certificate issuance
Correct answer: Unified identity and access management across providers
Each cloud provider has its own IAM system, making consistent identity governance, SSO, and least-privilege enforcement significantly harder in multi-cloud scenarios.
Question 4: Which migration wave planning technique groups applications based on their interdependencies to reduce cutover risk?
- Alphabetical ordering
- Application dependency mapping (Correct answer)
- Business unit assignment
- Random sampling
Correct answer: Application dependency mapping
Application dependency mapping identifies which apps must be migrated together or in sequence to prevent broken integrations during cutover.
Question 5: A company using AWS and Azure wants a single pane of glass for cloud cost management. Which category of tool addresses this need?
- Cloud-native cost explorer from one provider only
- Cloud Management Platform (CMP) or FinOps tool (Correct answer)
- On-premises ERP system
- Network performance monitoring tool
Correct answer: Cloud Management Platform (CMP) or FinOps tool
Cloud Management Platforms and FinOps tools such as Apptio Cloudability or CloudHealth aggregate cost data across multiple cloud providers into a unified view.
Question 6: What is the main risk of using a 'big bang' cutover strategy for a critical application migration?
- It requires more testing than phased approaches
- Extended parallel run costs increase the budget
- Extended downtime and limited rollback options if issues occur (Correct answer)
- It cannot be used with lift-and-shift migrations
Correct answer: Extended downtime and limited rollback options if issues occur
A big bang cutover switches all users to the new system simultaneously, meaning any post-cutover failures result in significant downtime with no easy way to revert.
Question 7: Which cloud storage class is most appropriate for archiving compliance data that must be retained for 7 years but rarely accessed?
- Standard object storage
- Infrequent access storage tier
- Archive/Glacier-tier storage (Correct answer)
- In-memory cache storage
Correct answer: Archive/Glacier-tier storage
Archive-tier storage (e.g., AWS Glacier, Azure Archive) offers the lowest cost per GB for long-term retention of rarely accessed compliance data.
CSI Cloud Migration & Multi-Cloud 3
A systems integrator is designing a multi-cloud architecture to avoid vendor lock-in.
Which practice best supports this goal?