Podcast
Questions and Answers
What is the primary purpose of replication protocols in a distributed storage system?
What is the primary purpose of replication protocols in a distributed storage system?
- To reduce the cost of storage
- To enhance the user interface
- To increase storage capacity
- To ensure data consistency between copies (correct)
What feature does the Elastic Volume Service (EVS) provide to enhance storage performance?
What feature does the Elastic Volume Service (EVS) provide to enhance storage performance?
- Automated data compression
- Blockchain technology
- Cache acceleration techniques (correct)
- In-built antivirus protection
Which storage service is specifically designed for scalable, high-performance file storage?
Which storage service is specifically designed for scalable, high-performance file storage?
- Basic Storage Service (BSS)
- Object Storage Service (OBS)
- Elastic Volume Service (EVS)
- Scalable File Service (SFS) (correct)
Which characteristic is NOT associated with the Object Storage Service (OBS)?
Which characteristic is NOT associated with the Object Storage Service (OBS)?
What ensures that only one primary copy exists for a piece of data in a replication setting?
What ensures that only one primary copy exists for a piece of data in a replication setting?
What is the primary role of virtualization in cloud computing?
What is the primary role of virtualization in cloud computing?
Which of the following is a benefit of partitioning in virtualization?
Which of the following is a benefit of partitioning in virtualization?
What does the isolation feature of virtualization provide?
What does the isolation feature of virtualization provide?
How can virtual machines be migrated in a virtualization system?
How can virtual machines be migrated in a virtualization system?
What is a hypervisor in the context of virtualization?
What is a hypervisor in the context of virtualization?
What is meant by 'encapsulation' in virtualization?
What is meant by 'encapsulation' in virtualization?
Which components typically make up a computer system in the ICT industry?
Which components typically make up a computer system in the ICT industry?
What is the guest OS in virtualization?
What is the guest OS in virtualization?
What is the primary function of NAT?
What is the primary function of NAT?
Which statement is true concerning Open vSwitch (OVS)?
Which statement is true concerning Open vSwitch (OVS)?
What technology significantly improves I/O performance in Enhanced vSwitch (EVS)?
What technology significantly improves I/O performance in Enhanced vSwitch (EVS)?
How do Distributed Virtual Switches (DVS) operate in relation to virtual machines (VMs)?
How do Distributed Virtual Switches (DVS) operate in relation to virtual machines (VMs)?
What advantage do virtual switches have over traditional switches?
What advantage do virtual switches have over traditional switches?
What is a Virtual Private Cloud (VPC) on HUAWEI CLOUD?
What is a Virtual Private Cloud (VPC) on HUAWEI CLOUD?
How does an Enhanced vSwitch (EVS) differ from an Open vSwitch (OVS)?
How does an Enhanced vSwitch (EVS) differ from an Open vSwitch (OVS)?
Which of the following is NOT a function of a virtual switch?
Which of the following is NOT a function of a virtual switch?
What is a key characteristic of microservices architecture?
What is a key characteristic of microservices architecture?
What do containers utilize to run multiple applications on the same server?
What do containers utilize to run multiple applications on the same server?
How do container images typically compare in size to VM images?
How do container images typically compare in size to VM images?
What role does the hypervisor play in virtualization?
What role does the hypervisor play in virtualization?
What is the main advantage of using containers over VMs?
What is the main advantage of using containers over VMs?
What capabilities does Cloud Container Engine (CCE) provide?
What capabilities does Cloud Container Engine (CCE) provide?
Which statement most accurately describes the resource utilization of containers?
Which statement most accurately describes the resource utilization of containers?
What is the main function of a container image?
What is the main function of a container image?
What protocol do object storage systems commonly use for data access over the Internet?
What protocol do object storage systems commonly use for data access over the Internet?
Which storage type is best suited for mission-critical applications requiring the lowest latency?
Which storage type is best suited for mission-critical applications requiring the lowest latency?
What is a primary characteristic of file storage compared to object storage?
What is a primary characteristic of file storage compared to object storage?
Which protocol is primarily associated with file sharing between UNIX operating systems?
Which protocol is primarily associated with file sharing between UNIX operating systems?
What is the main advantage of object storage over file storage?
What is the main advantage of object storage over file storage?
Before a block storage device can be used, what must be done?
Before a block storage device can be used, what must be done?
What latency level is associated with file storage?
What latency level is associated with file storage?
What happens to the search performance in file storage as the number of files increases?
What happens to the search performance in file storage as the number of files increases?
Study Notes
Virtualization vs. Cloud Computing
- Virtualization converts physical hardware into virtual resources, serving as the backbone for cloud computing.
- Cloud computing provides on-demand access to these virtualized resources via the Internet.
- Key features of virtualization:
- Partitioning: Enables multiple VMs on a single server, optimizing resource allocation.
- Isolation: Faults in one VM do not affect others, enhancing system reliability.
- Encapsulation: VMs are stored as files, allowing easy migration.
- Independence: VMs can operate on different physical servers without modifications.
Important Virtualization Concepts
- Hypervisor: Software layer that creates and manages VMs, with popular open-source types including Xen and KVM.
- Guest OS: Operating system running inside the VM.
- Host OS: Operating system on the physical server.
- VM: Virtual machine, an abstraction of physical resources.
Computing Resources Overview
- Computing involves a CPU, memory, disk, and network resources.
- Microservices allow for applications to be isolated and independently managed, improving resource utilization.
- Containers package application code and dependencies, are lightweight, require less memory and CPU, and can run multiple instances on the same server.
- VMs simulate entire servers, including OS and applications, typically requiring tens of GBs.
HUAWEI CLOUD Container Services
- Cloud Container Engine (CCE): High-performance service for managing containerized applications, integrating with Kubernetes.
- CCE Turbo clusters: Utilize cloud-native infrastructure for enhanced computing performance.
Storage Types in Cloud Computing
- Block Storage: Has low latency and is ideal for mission-critical applications, requiring formatting before use.
- File Storage:
- NFS: Protocol for file sharing between UNIX systems, commonly used with Linux clients.
- CIFS: Protocol for remote file access, mainly for Windows clients.
- Object Storage:
- Offers efficient large-scale data management with a flat structure for faster searches, using application-level APIs.
Networking and Security
- Virtual Switches: Facilitate internal VM traffic, connect to external networks.
- Open vSwitch (OVS): Open-source virtual switch supporting various protocols, facilitating VM communication.
- Enhanced vSwitch (EVS): Improves performance by processing data in user mode.
- Distributed Virtual Switch (DVS): Functions like a physical switch, simplifying network architecture.
HUAWEI CLOUD Network and Storage Services
- Virtual Private Cloud (VPC): An isolated virtual network that enhances security.
- Elastic Volume Service (EVS): Persistent block storage with high availability and low latency.
- Scalable File Service (SFS): NAS that offers scalable file storage, facilitating shared access across different compute resources.
- Object Storage Service (OBS): Provides versatile and secure storage with REST APIs for any amount of unstructured data.
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Description
Explore the key differences between virtualization and cloud computing in this quiz. Understand how virtualization serves as the foundation for cloud technology and its impact on physical hardware. Test your knowledge and clarity on these essential concepts in IT.
