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WorksheetsCC CT-4
Total questions: 15
Worksheet time: 8hrs 30mins
What is virtualization in computing?
Virtualization is the process of duplicating physical hardware for backup purposes.
Virtualization refers to the use of multiple operating systems on separate machines.
Virtualization is the method of enhancing hardware performance through overclocking.
Virtualization is the abstraction of computing resources to create virtual instances that can operate independently on a single physical hardware.
Name two popular virtualization technologies.
Hyper-V, KVM
VMware, VirtualBox
Docker, Parallels
Citrix, QEMU
What are the main characteristics of virtualized environments?
Complex setup, decreased flexibility, increased overhead, and limited isolation.
Static resources, minimal scalability, rigid structure, and poor resource sharing.
Resource abstraction, scalability, flexibility, isolation, and improved resource utilization.
Limited access, high cost, low performance, and reduced security.
How does virtualization relate to cloud computing?
Virtualization is a foundational technology that enables cloud computing by allowing multiple virtual instances to run on shared physical hardware.
Virtualization is a method for increasing physical hardware performance.
Virtualization is only used for desktop applications, not cloud services.
Cloud computing eliminates the need for virtualization technologies.
List one advantage and one disadvantage of virtualization.
Advantage: Simplified management; Disadvantage: Limited scalability.
Advantage: Enhanced security; Disadvantage: Higher costs.
Advantage: Faster deployment; Disadvantage: Reduced performance.
Advantage: Efficient resource utilization; Disadvantage: Increased complexity.
What is the purpose of container orchestration?
To enhance the performance of virtual machines.
To provide a user interface for cloud services.
To simplify the coding of applications.
The purpose of container orchestration is to automate the management of containerized applications.
Name a container platform that uses LXC.
Docker
Kubernetes
OpenVZ
LXD
What is Docker primarily used for?
Serverless computing solutions
Containerization of applications
Application deployment automation
Virtual machine management
Explain the difference between a virtual machine and a container.
A virtual machine is always faster than a container due to its dedicated resources.
A virtual machine runs applications directly on the hardware, while a container requires a separate OS.
A virtual machine shares the host OS, while a container runs a full OS for each application.
A virtual machine emulates hardware and runs a full OS, while a container shares the host OS and isolates applications, making it more lightweight.
What is Kubernetes used for in container management?
Kubernetes is used for container orchestration and management.
Kubernetes is used for network security and monitoring.
Kubernetes is used for application development and testing.
Kubernetes is used for data storage and retrieval.
Describe the role of Amazon EC2 in cloud computing.
Amazon EC2 is a content delivery network that speeds up website loading times.
Amazon EC2 is a web service that provides resizable compute capacity in the cloud, allowing users to run virtual servers and scale resources as needed.
Amazon EC2 is a networking tool for creating secure connections between servers.
Amazon EC2 is a storage service for managing databases in the cloud.
What is Amazon Elastic Container Service?
Amazon Elastic Container Service (ECS) is a fully managed container orchestration service for running and managing Docker containers.
Amazon Elastic Container Service is a tool for managing virtual machines.
Amazon Elastic Container Service is a cloud storage solution for files.
Amazon Elastic Container Service is a database management system for SQL databases.
How do Docker Swarm and Kubernetes differ?
Docker Swarm is simpler and easier to use, while Kubernetes is more complex and feature-rich.
Docker Swarm is designed for microservices, while Kubernetes is for monolithic applications.
Docker Swarm requires more configuration, while Kubernetes is plug-and-play.
Docker Swarm is more scalable, while Kubernetes is less efficient.
What are the building blocks of containers?
Images, container runtime, orchestration tools, and container registries.
Images, serverless functions, load balancers, and data lakes.
Containers, virtual machines, cloud storage, and network protocols.
Dockerfiles, application servers, monitoring tools, and backup systems.
What is a hypervisor in the context of virtualization?
A hypervisor is a software that creates and manages virtual machines on a physical host.
A hypervisor is an operating system that runs on virtual machines.
A hypervisor is a network protocol for data transfer.
A hypervisor is a type of hardware that boosts system performance.
