H13-821_V3.0 Exam Questions

Data replication service DRS can not only support data migration scenarios, but also support data subscription services similar to those provided by Kafka.

ServiceStage, an application management and operation and maintenance platform, supports the access and governance of mainstream microservice frameworks. It can flexibly select the...

Microservice Engine CSE is a one-stop management platform for microservice solutions. Using a microservice engine enables developers to focus more on the operation and maintenance...

In scenarios where traffic increases rapidly in a short period of time, such as commodity spikes and snap-ups, in order to prevent the back-end application from being suppressed, K...

In the same region, when a failure occurs in one availability zone, the ECS in another availability zone will not be affected.

A user purchased an elastic public network IP on HUAWEI CLOUD for testing, but due to failure to pay the fee on time, the account was in arrears, and the purchased elastic IP resou...

Redis, a non-relational database, is a Key-value database for high-performance concurrent read and write. Redis supports five data types: string (string), hash (hash), list (list),...

Document database service DDS is fully compatible with the Redis protocol, providing secure, highly available, highly reliable, elastically scalable, and easy-to-use database servi...

Cloud database for RDS can support four database engines: MySQL, PostgreSQL, Oracle and Microsoft SQL Server.

The Ingress in the Kubernetes object can provide the URL for external access to the cluster, load balancing, etc. for the Service. Ingress does not expose any port or protocol. If...

The cloud monitoring service CES provides users with a three-dimensional monitoring platform for resources such as elastic cloud servers and bandwidth, so that users can understand...

The Huawei Cloud Application Performance Management APM service is a cloud service that monitors and manages cloud application performance and faults in real time. It can provide p...

An e-commerce platform deploys its business on Huawei Cloud. Recently, some customers reported problems such as slow webpage refresh and long waiting time. The operation and mainte...

When operating HUAWEI CLOUD games, the game rankings can be stored in a document database, and information about users and players, such as user equipment and user points, can be s...

The expansion directions in the AKF expansion cube and their corresponding concerns are: the X- axis expansion focuses on the division of responsibilities in the application, such...

In the application software architecture, the classic three-tier architecture consists of the user interface layer (Userlinterfacelayer), business logic layer (Businesslogiclayer)...

Check mark (E workload is an application running on Kubernetes, a workload is composed of one or more instances (Pod). An instance is composed of one or more containers, and each c...

An insurance company plans to migrate the business of the local data center to Huawei Cloud, and adopt the cross-AZ active-standby disaster recovery solution for business deploymen...

When users use the LTS cloud log service on Huawei Cloud, when it is necessary to dump the logs to OBS, the log group should be used as the basic operation unit

When using the data replication service DRS to configure the migration task, it is necessary to check whether the data transfer server can connect to the cloud database to be migra...

In the IoT data processing scenario of the HUAWEI CLOUD Serverless solution, after the user configures the DIS trigger for the processing function, the function will be automatical...

In the storage-computing separation scheme of bare metal service BMS service + object storage OBS service, it not only means the decoupling of resources, but also decoupling at the...

A company's financial system uses an Oracle database to store business-related data. Now when it wants to migrate the system data to the Huawei cloud database CaussDB (for openGaus...

When using Huawei Cloud Object Storage Migration Service OMS for data migration, the migration is listed in the dictionary order of the selected prefix by default. Whether the new...

Huawei Cloud MapReduce Service MRS builds big data clusters based on containers. It is a service for deploying and managing Hadoop systems on Huawei Cloud. One-click deployment of...

In the two-site three-center disaster recovery solution on the cloud, business sharing can be realized through DNS between the two regions, and the disaster recovery center can han...

When customers analyze and obtain performance indicators based on stress tests, they usually set thresholds for basic resource performance monitoring data, among which the maximum...

The user installed the host monitoring agent on the elastic cloud server created by using the private image Windows Server 2012 R2 Datacenter 64bit, but in the management console,...

Huawei Cloud MapReduce service MRS only supports unstructured data storage in clusters, but provides a variety of mainstream computing engines, such as Storm (stream computing), Sp...

A user deploys an application through Kubernetes. If it is necessary to collect the running status monitoring information of each node, it can be done by starting a DaemonSet on al...

HUAWEI CLOUD CDN site-wide acceleration combines dynamic and static acceleration. When users request resources, static content is obtained from the nearest edge node, and dynamic c...

HDFS guarantees that a file can only be written by one caller at a time, but can be read by multiple callers at the same time.

When using HUAWEI CLOUD Object Storage Migration Service OMS service for data migration, support for deleted objects at the source to delete objects in the destination bucket synch...

The container uses cgroup technology to limit the use of CPU and memory. Reasonably setting the request and upper limit of container resources can effectively guarantee the resourc...

When a user uses the Huawei Cloud SMS service to migrate a window host with 300GB of data, in theory, it takes about 15 hours to complete the migration when the source bandwidth is...

As a distributed large-scale resource scheduling system at the bottom of the cloud, Huawei Cloud Smart Cloud Brain includes the following core subsystems: data collection and docki...

Under the influence of technology-driven, business-driven and policy-driven, enterprises will gradually deploy their business on the cloud platform.

Virtual private cloud builds an isolated and private virtual network environment for cloud resources such as elastic cloud servers, cloud container engines, and cloud databases.

Compared with the cloud firewall, the web application firewall mainly protects the Internet border and the VPC border, while the web application firewall mainly protects web servic...

The bare metal server supports four network types, which are virtual private cloud, advanced network, custom VLAN network, and B network.

In the Docker environment, Cgroupi is usually responsible for encapsulating kernel resources, so that each container has an independent resource, so that different processes will n...

According to the performance of cloud hard disk, the disk can be divided into ordinary IO, high IO, general-purpose SSD and ultra-high IO.

Compared with traditional databases, cloud databases only need to pay for database instances, without purchasing and installing any software and hardware, which simplifies operatio...

Microservice is a software architecture style. It is based on small functional blocks that focus on a single responsibility and function, and uses a modular approach to combine com...

Prometheus is an open source system monitoring and alarm framework that provides a common data model and convenient data collection, storage and query interfaces, it is suitable fo...

The monolithic architecture is a service-oriented architecture, which has the characteristics of loose coupling, simple structure, easy deployment and upgrade, and communicates thr...

When the capacity of the existing cloud hard disk is insufficient, the user can expand the capacity of the cloud hard disk, that is, expand the capacity of the cloud hard disk. Whe...

By configuring network ACL and security group policy, the safe use of servers in VPC can be guaranteed. The security group mainly protects the server, and the network ACL mainly pr...

Cloud workloads are loads that run services on cloud resources, including virtual machines, elastic load balancing, containers, etc., which carry the core of enterprise business.

Lstio is an open platform that provides connection, protection, control, and observation functions. By providing a complete non-intrusive microservice governance solution, it can w...