ICT Cloud Computing and Virtualization 2 — Questions and Answers
Question 1: Which cloud deployment model hosts services exclusively for a single organization and can be managed on-premises or by a third party?
- Public cloud
- Hybrid cloud
- Private cloud (Correct answer)
- Community cloud
Correct answer: Private cloud
A private cloud is dedicated to one organization, offering greater control and security than a public cloud.
Question 2: In virtualization, what is a 'snapshot'?
- A backup of physical server hardware
- A point-in-time copy of a virtual machine's state (Correct answer)
- A screenshot of the VM display
- A network packet capture
Correct answer: A point-in-time copy of a virtual machine's state
A snapshot captures the exact state of a VM at a moment in time, allowing rollback if needed.
Question 3: Which cloud service model gives developers the most control over the operating system and middleware?
- SaaS
- PaaS
- IaaS (Correct answer)
- FaaS
Correct answer: IaaS
IaaS provides raw compute, storage, and networking, giving developers full OS-level control.
Question 4: What does 'elasticity' mean in cloud computing?
- The ability to move data between regions
- Automatic scaling of resources up or down based on demand (Correct answer)
- The durability of stored data
- The speed of network connections
Correct answer: Automatic scaling of resources up or down based on demand
Elasticity allows cloud resources to automatically expand or contract in response to workload changes.
Question 5: Which technology allows multiple virtual machines to share a single physical network interface card?
- NIC teaming
- Virtual switching
- SR-IOV (Single Root I/O Virtualization) (Correct answer)
- VLAN tagging
Correct answer: SR-IOV (Single Root I/O Virtualization)
SR-IOV partitions a physical NIC into multiple virtual functions, each assignable to a separate VM.
Question 6: In AWS, what is an Availability Zone (AZ)?
- A global CDN edge location
- One or more discrete data centers with redundant power within a region (Correct answer)
- A virtual private cloud network
- A geographic region containing multiple continents
Correct answer: One or more discrete data centers with redundant power within a region
An AZ is an isolated location within an AWS Region with independent power, cooling, and networking.
Question 7: Which virtualization type runs the hypervisor directly on the server hardware without a host OS?
- Type 2 hypervisor
- Hosted virtualization
- Type 1 (bare-metal) hypervisor (Correct answer)
- Containerization
Correct answer: Type 1 (bare-metal) hypervisor
Type 1 hypervisors like VMware ESXi run directly on hardware, providing better performance and security.
ICT Cloud Computing and Virtualization 2
Which cloud deployment model hosts services exclusively for a single organization and can be managed on-premises or by a third party?