Cloud based Architecture Design of Conventional Applications Flashcards
Compute Service Planning
The four main stages in the evolution of compute are
physical server, vm, container, serverless
the five types of evs disks are
common I/O, high I/O, ultra-high I/O, general purpose ssd, extreme ssd
This ecs type is Suitable for scenarios that require moderate CPU performance generally
but occasionally burstable high performance while keeping costs low
General computing-basic
Suitable for websites and web applications, small-scale databases and cache servers, and light- and medium-workload enterprise applications with strict requirements on PPS
General computing
Suitable for web applications, e-commerce platforms, short video platforms, online games, insurance, and finance
General computing-plus
Suitable for massive parallel processing (MPP) data warehouses, MapReduce and Hadoop distributed computing, distributed file systems, network file systems, and log or data processing applications
Memory-Optimized
- Disk-intensive ECS are suitable for
distributed file systems, network file systems, and log or data processing applications
Computing and storage systems for genetic engineering, games,
animations, and biopharmaceuticals
High-performance computing
What ECS family is this one? Suitable for development and staging environments, small websites, light-load applications
T6 family (general computing basic)
Important aspects: maximum 0.6 million of pps and cpu credits
the _____ family is suitable for development and staging environments, small websites and light-load applications.
T6 family (geenral computing - basic)
1-16 vcpus
a maximum of 0.6 million pps
CPU credits
the _____ family is suitable for websites, lightweight database services, and light-load and medium-load enterprise applications.
S6 family (general -purpose computing)
1-8 vcpus
maximum of 0.5 million pps
scalable processors
Most powerful family that could be suitable for a startup
s7(general purpose computing)
The performance of ______________________ is restricted by the benchmark performance and CPU credits.
general-computing basic T6 ECSs
__________are equipped with second-generation Intel® Xeon® Scalable processors and Huawei 25GE high-speed intelligent NICs that cost- effectively provide high network bandwidth and PPS throughput.
S6 ECSs
___________are equipped with third-generation Intel® Xeon® Scalable processors and Huawei 25GE high-speed intelligent NICs that cost- effectively provide high network bandwidth and PPS throughput.
S7 ECSs
these ecs are a better option for growing companies, contrary to the t6, s6 and s7 families which could be better for startups.
c3, c6, c7 (general computing plus)
As services continue to expand, companies focus more on service stability than cost effectiveness. What’s the ECS family suitable for mature companies?
M7(memory optimized), D7(disk-intensive) and I7 (Ultra-High I/O)
What is DeH?
is a physical server fully dedicated for your own services, ensuring isolation, security and performance for your ECS.
Which Huawei Cloud service would you choose for running a financial application that requires physical resource isolation and compliance with strict regulatory standards?
DeH (Dedicated Host)
What are the advantages of using DeH over ECS in terms of compliance and security?
DeH provides physical resource isolation, making it more suitable for meeting stringent compliance and regulatory requirements.
four types of networks are available for BMS:
vpc, enhanced high speed network, user defined vlan, InfiniBand network.
A private image can be a
system disk image, data disk image, or full-ECS image.
You can use a ____________to create cloud servers and migrate your services to the cloud.
system disk image
A full-ECS image is created using ___________________ and the creation takes___________ than creating a system or data disk image of the same size.
differential backups ,less time
A ___________image contains only service data.
data disk
True or false: You can share private images that have been published in Marketplace.
False. You cannot share private images that have been published in Marketplace.
what is needed to share an image across regions?
you need to replicate the image to the target region first.
A system disk image or data disk image can be shared with a maximum of _____users, and a full-ECS image can be shared with a maximum of ___ users.
128, 10
what is an enhanced high-speed network?
This type of network uses upgraded hardware and software and provides performance superior to a standard high-speed network.
Important notes:
▫ The bandwidth is at least 10 Gbit/s.
▫ The number of network planes can be customized and up to 4,000 subnets
are supported.
▫ VMs on a BMS can access the Internet.
What is an user-defined vlan?
You can use Ethernet NICs that are not being used by the system to configure a user-defined vlan. User-defined VLAN Nics are deployed in pairs.
What technology is used to isolate networks and provide additional physical planes and bandwidths?
QinQ
What is the Infiniband Network?
Features low latency and high bandwidth and is often used for High Performance computing (HPC) projects.
What NIC does the does the InfiniBand network use?
The 100gbit/s Mellanox Infiniband NIC, dedicated InfiniBand switch, and controller software UFM to ensure Network communication and management.
What is the Cloud Phone?
a service that can migrate applications on mobile phones to virtual phones running native Android on Kunpeg cloud servers. Cloud phones use the same ARM64 (Based on TaiShan arm servers) architecture as mobile phones.
What is RBAC in Kubernetes?
Role-based access control (RBAC) is a method of regulating access to computer or network resources based on the roles of individual users within your organization.
What is a differential backup?
A differential backup is a data backup that copies all the files that have changed since the last full backup was performed. Differential backups copy any data that has been created, updated or altered in any way but don’t copy all the data in a file every time.
what types of AS policies does Huawei Cloud have?
alarm policies
scheduledpolicies
periodic policies
what type of AS policy is this? scaling actions take place when monitoring metrics reach their threshold.
Alarm policy
what type of AS policy is this? you can configure scaling actions to take place at scheduled intervals, a specific time or within a particular range.
periodic policies
what type of AS policy is this? scaling actions take place at a specific time.
scheduled policies.
security groups protect ________ and acls protect __________
ECS, subnets
What is VPC endpoint?
is a cloud service that provides secure and private channels to connect your VPCs to VPC endpoint services.
