Q.1 What is virtualization in computing?
Creating a physical server
Running multiple OS on a single hardware
Using only cloud storage
Converting code to machine language
Explanation - Virtualization allows multiple operating systems to run on a single physical machine using hypervisors.
Correct answer is: Running multiple OS on a single hardware
Q.2 Which software layer enables virtualization?
Compiler
Hypervisor
Kernel
Shell
Explanation - The hypervisor is the software layer that enables virtualization by allowing multiple virtual machines to share hardware.
Correct answer is: Hypervisor
Q.3 What is the main purpose of cloud operating systems?
To manage local printers
To enable web browsing
To provide scalable computing resources over the internet
To compile code faster
Explanation - Cloud OS provides a platform for scalable resource management and virtualization for cloud services.
Correct answer is: To provide scalable computing resources over the internet
Q.4 Which of the following is a Type 1 hypervisor?
VMware ESXi
VirtualBox
QEMU
Docker
Explanation - VMware ESXi runs directly on hardware (bare-metal) and is a Type 1 hypervisor.
Correct answer is: VMware ESXi
Q.5 What is a virtual machine?
A software-based simulation of hardware
A cloud storage unit
A physical server
A type of database
Explanation - A virtual machine emulates hardware using software, enabling multiple OS instances to run independently.
Correct answer is: A software-based simulation of hardware
Q.6 Which company offers Hyper-V virtualization technology?
Microsoft
Google
Apple
IBM
Explanation - Microsoft provides Hyper-V, a virtualization platform used for creating and managing virtual machines.
Correct answer is: Microsoft
Q.7 Which of the following is NOT a benefit of virtualization?
Better resource utilization
Easier testing environments
Reduced hardware cost
Slower performance always
Explanation - Virtualization generally improves efficiency; performance slowdown is not always the case.
Correct answer is: Slower performance always
Q.8 In cloud computing, IaaS stands for:
Infrastructure as a Service
Integration as a Service
Information as a System
Interface as a Service
Explanation - IaaS provides virtualized computing infrastructure via the internet.
Correct answer is: Infrastructure as a Service
Q.9 Which of these is an example of PaaS?
Google App Engine
AWS EC2
Dropbox
VMware Workstation
Explanation - Google App Engine is a PaaS that provides a platform for building and hosting applications.
Correct answer is: Google App Engine
Q.10 Which virtualization approach uses containers?
Full virtualization
Paravirtualization
OS-level virtualization
Bare-metal
Explanation - Containers rely on OS-level virtualization to isolate applications using the same kernel.
Correct answer is: OS-level virtualization
Q.11 What is the key advantage of cloud OS?
Limited scalability
Scalable resource management
No virtualization support
Slower performance
Explanation - Cloud OS manages resources dynamically to provide scalability.
Correct answer is: Scalable resource management
Q.12 Which of these is NOT a cloud deployment model?
Public cloud
Private cloud
Hybrid cloud
Linear cloud
Explanation - Linear cloud does not exist; valid deployment models are public, private, and hybrid.
Correct answer is: Linear cloud
Q.13 Which open-source tool is widely used for containerization?
Docker
VMware
VirtualBox
QEMU
Explanation - Docker is the leading open-source containerization platform.
Correct answer is: Docker
Q.14 Which cloud model offers software directly to the end-users?
IaaS
PaaS
SaaS
NaaS
Explanation - SaaS (Software as a Service) delivers software applications over the internet.
Correct answer is: SaaS
Q.15 Which hypervisor type is also known as a 'bare-metal hypervisor'?
Type 1
Type 2
Container-based
Kernel-based
Explanation - Type 1 hypervisors run directly on the hardware without an underlying host OS.
Correct answer is: Type 1
Q.16 Which of the following best describes cloud elasticity?
Automatic scaling of resources
Manual resizing of storage
Static allocation of CPUs
Limited network access
Explanation - Elasticity means automatic scaling of cloud resources up or down as needed.
Correct answer is: Automatic scaling of resources
Q.17 Which hypervisor is used in Oracle VirtualBox?
Type 1
Type 2
Bare-metal
Cloud-native
Explanation - VirtualBox is a Type 2 hypervisor that runs on top of a host OS.
Correct answer is: Type 2
Q.18 In cloud computing, multi-tenancy means:
Each user has a dedicated hardware
Multiple users share resources securely
Only one application per server
Users cannot share data
Explanation - Multi-tenancy allows multiple customers to share the same infrastructure while isolating their data.
Correct answer is: Multiple users share resources securely
Q.19 Which protocol is commonly used for remote virtual machine management?
SSH
RDP
FTP
SMTP
Explanation - Remote Desktop Protocol (RDP) is often used to manage VMs remotely.
Correct answer is: RDP
Q.20 Which cloud service model provides raw storage, networking, and servers?
SaaS
PaaS
IaaS
DaaS
Explanation - IaaS delivers fundamental infrastructure resources like compute, storage, and networking.
Correct answer is: IaaS
Q.21 Which company provides the OpenStack cloud platform?
Red Hat
Microsoft
Google
Oracle
Explanation - Red Hat supports and distributes the OpenStack open-source cloud platform.
Correct answer is: Red Hat
Q.22 Which of the following is NOT an advantage of cloud OS?
Cost efficiency
Resource pooling
On-demand service
Guaranteed zero downtime
Explanation - Cloud OS improves availability but cannot guarantee absolute zero downtime.
Correct answer is: Guaranteed zero downtime
Q.23 Which of these is an example of a public cloud provider?
AWS
Kubernetes
VMware Workstation
Hyper-V
Explanation - Amazon Web Services (AWS) is a leading public cloud provider.
Correct answer is: AWS
Q.24 Which of these is used to orchestrate containers?
Kubernetes
VMware ESXi
VirtualBox
OpenStack
Explanation - Kubernetes is a popular open-source container orchestration system.
Correct answer is: Kubernetes
Q.25 Which virtualization technique modifies the guest OS to work with the hypervisor?
Full virtualization
Paravirtualization
OS-level virtualization
Bare-metal
Explanation - Paravirtualization requires the guest OS to be modified for efficient interaction with the hypervisor.
Correct answer is: Paravirtualization