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Cloud Computing Basics

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Questions and Answers

Which of the following is NOT required when logging in as an IAM user in Huawei Cloud?

Username

IAM user password

Tenant Name

Key pair (correct)

Which of the following is NOT a billing mode when creating an ECS in Huawei Cloud?

Spot Price

Weekly (correct)

Yearly/Monthly

Pay-per-use

Which of the following options is NOT a public image option when creating an ECS in Huawei Cloud?

Ubuntu

Debian

Kanpeng (correct)

CentOS

In Huawei Cloud, which command is used to remotely log in to another ECS?

ssh (C) Signup and view all the answers

When creating an ECS in Huawei Cloud, which of the following is NOT an EIP option?

Create VPC (D) Signup and view all the answers

What technology is used to adjust resources in response to demand based on pre-configured policies?

Auto Scaling (D) Signup and view all the answers

Which type of image is restricted to the user who created it?

Private Image (D) Signup and view all the answers

What is the term for a collection of access control rules for ECSs within a VPC that are mutually trusted?

Security Group (C) Signup and view all the answers

Which component includes vCPUs, memory, and an operating system as a basic computing unit?

Elastic Cloud Server (A) Signup and view all the answers

What allows the establishment of an encrypted communication tunnel between an on-premises data center and a VPC?

VPN (C) Signup and view all the answers

Which of the following is classified as a virtual card?

Elastic Network Interface (A) Signup and view all the answers

Which type of image is broadly accessible to all users on a cloud platform?

Public Image (D) Signup and view all the answers

What is not a required component when creating an image in Huawei Cloud?

Availability Zone (C) Signup and view all the answers

Study Notes

Auto Scaling

Use: To adjust resources based on demand.
Triggers: Pre-Configured Policies.

Image Types

Private Image: Only available to user who created it.
Public Image: Standard image provided by cloud platform.
Marketplace Images: Provided by third-party service providers.

Virtual Private Cloud (VPC)

Purpose: To provide a secure and isolated environment for cloud resources.
Features: Subnet creation, route tables, EIP assignment, bandwidth configuration, and security group configuration.

Elastic Cloud Server (ECS)

Basic Unit: vCPUs, Memory, OS.
General Computing Specifications: s6.small.1
System Disk Options: General Purpose, Ultra-High I/O, Extreme SSD
Default Username (Linux ECS): root

Other Services

Security Group: Collection of access control rules for the VPC.
Elastic Network Interface (ENI): Virtual Network Interface.
Elastic IP (EIP): Enables cloud resources to communicate with the internet.
Virtual Private Network (VPN): Encrypted communications tunnel between on-premises and cloud.
Elastic Load Balance (ELB): Distributes traffic to multiple backend servers.
Network ACL: Controls traffic in and out of a subnet.
Bare Metal Server (BMS): Provides dedicated servers on the cloud.
Top-of-Rack: How server cabinets are wired.
Image: Template containing OS, data, and application software.

Required: Tenant Name, Username, IAM user password.

Billing Modes

ECS: Pay-per-use, Yearly/Monthly, Spot Price.
Subnet Creation: NOT a billing mode.

Additional Notes

SSH command: Used to remotely log in to an ECS.
Linux Distributions: CentOS 7.9
CentOS, Ubuntu, Debian: Public Image options
NOT Public Image options: Kanpeng
Not Cloud Services: BMS, DNS
When creating an ECS, NOT required: Availability Zone, ECS group.
When creating an ECS, NOT options for an EIP: Create VPC.
When creating a subnet, NOT specified: Billing Modes.
When creating a VPC, NOT specified: Operating system.

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Description

This quiz covers essential cloud computing concepts such as Auto Scaling, Virtual Private Cloud (VPC), and Elastic Cloud Servers (ECS). Test your knowledge on different image types, EC2 specifications, and security measures. Perfect for anyone looking to deepen their understanding of cloud infrastructure.