CSA Virtualization & Cloud Services 3 — Questions and Answers
Question 1: A customer is concerned about vendor lock-in when adopting cloud services. Which strategy should a sales associate recommend to mitigate this risk?
- Deploy everything to a single major cloud provider for simplicity
- Use proprietary managed services exclusively
- Adopt a multi-cloud or cloud-agnostic architecture using open standards (Correct answer)
- Sign a long-term contract for discounted pricing
Correct answer: Adopt a multi-cloud or cloud-agnostic architecture using open standards
A multi-cloud or cloud-agnostic approach using open standards reduces dependency on any single vendor's proprietary services.
Question 2: What distinguishes containers from virtual machines in a cloud environment?
- Containers require a full OS per instance; VMs share one OS kernel
- Containers share the host OS kernel; VMs each have their own OS (Correct answer)
- Containers are slower to start than VMs
- Containers provide stronger hardware isolation than VMs
Correct answer: Containers share the host OS kernel; VMs each have their own OS
Containers share the host OS kernel, making them lightweight and fast to start, while VMs each include a full OS instance.
Question 3: A SaaS application is best described as software that is:
- Installed locally on each user's workstation
- Hosted and managed by the provider, accessed via a web browser (Correct answer)
- Deployed by the customer on rented virtual machines
- Compiled and run on bare-metal customer servers
Correct answer: Hosted and managed by the provider, accessed via a web browser
SaaS delivers fully managed software over the internet, eliminating local installation and maintenance responsibilities for the customer.
Question 4: Which metric best demonstrates the ROI of server virtualization to a cost-conscious customer?
- Number of virtual machines created
- Server consolidation ratio (physical servers replaced per host) (Correct answer)
- Total storage capacity provisioned
- Network bandwidth consumed
Correct answer: Server consolidation ratio (physical servers replaced per host)
The consolidation ratio shows how many physical servers were replaced, directly translating to hardware, power, and space cost savings.
Question 5: A prospect asks what 'high availability' means in a cloud context. The best answer is:
- The system is always 100% operational with zero downtime
- The system is designed to minimize downtime through redundancy and failover (Correct answer)
- The system uses the highest-tier hardware available
- The system is geographically located near the customer
Correct answer: The system is designed to minimize downtime through redundancy and failover
High availability refers to designing systems with redundant components and automatic failover so downtime is minimized, though not necessarily zero.
Question 6: When a cloud provider offers a 99.9% uptime SLA, approximately how many hours of downtime per year does that represent?
- Less than 1 hour
- About 8.7 hours (Correct answer)
- About 52 hours
- About 87 hours
Correct answer: About 8.7 hours
99.9% uptime (three nines) allows approximately 8.76 hours of downtime per year (0.1% × 8,760 hours).
Question 7: Which cloud service feature automatically distributes incoming application traffic across multiple servers to prevent any single point of overload?
- Auto-scaling
- Load balancing (Correct answer)
- Content delivery network
- VPN gateway
Correct answer: Load balancing
Load balancing distributes incoming requests across multiple backend servers, improving availability and preventing bottlenecks.
CSA Virtualization & Cloud Services 3
A customer is concerned about vendor lock-in when adopting cloud services.
Which strategy should a sales associate recommend to mitigate this risk?