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Huawei H13-821 Exam Sample Questions | SPOTO

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Question #1
The elastic public network IP can be flexibly bound and unbound with resources such as elastic cloud servers, bare metal servers, elastic load balancing, and NAT gateways. It has a variety of flexible billing methods to meet the needs of various business scenarios. But there are also many constraints and restrictions. Which of the following descriptions about constraints and restrictions is wrong?
A. Only unbound EIP addresses can be released
B. After the elastic public network IP is released, if it is used by other users, you can submit a work order to apply for retrievalcorrect
C. An elastic public IP can only be bound to one cloud resource, and the elastic public IP and cloud resources must be in the same region
D. Only unbound EIPs can be bound
View answer
Correct Answer: B
Question #2
Which of the following scenarios are applicable to the Huawei CCE Cloud Container Engine? (Multiple Choice)
A. Scenarios where business load fluctuates significantlycorrect
B. Scenarios for reducing resource costscorrect
C. Scenarios where traditional IT architecture can stably support businesscorrect
D. Scenarios for improving the efficiency of business launchcorrect
View answer
Correct Answer: ABCD
Question #3
What are the cloud solutions of Huawei Cloud PaaS for traditional industry IT systems?
A. Apply zero transformation to the cloud
B. Application switching cloud middleware reduces operation and operation and maintenance costscorrect
C. Application containerization, second-level elastic scaling, higher resource utilizationcorrect
D. Application microservices, feature decoupling, fast onlinecorrect
E. Extreme business innovation, function-based programming
View answer
Correct Answer: ABCD
Question #4
Huawei CSE supports multi-language microservice access and intercommunication, among which the supported languages include (). (Multiple Choice)
A. Javacorrect
B. GOcorrect
C.
D. Node
E. PHPcorrect
F. Pythoncorrect
View answer
Correct Answer: ABCDEF
Question #5
Which of the following services does not belong to HUAWEI CLOUD PaaS service?
A. Microservice Cloud Application Platform Service Stage
B. Elastic Cloud Server ECScorrect
C. Cloud Container Engine CCE
D. Cloud Performance Testing Service CPTS
View answer
Correct Answer: B
Question #6
If you deploy an e-commerce website on HUAWEI CLOUD, in order to benefit old customers, and are ready to engage in a one-day sale, what preparations should operation and maintenance personnel make on HUAWEI CLOUD in advance? (Multiple Choice)
A. Use HUAWEI CLOUD's stress testing service Cloud Eys to practice the high-traffic service capabilities of the website in advancecorrect
B. Add the indicators that need to be viewed during routine operation and maintenance into the dashboard so that you can grasp the overall situation in real timecorrect
C. Set threshold alarms for key application performance indicators of the website, and automatically notify operation and maintenance personnel of the alarmscorrect
D. Prepare resources in advance
View answer
Correct Answer: ABCD
Question #7
What are the advantages of Huawei's CCE cloud container engine? (Multiple Choice)
A. Diverse ecological accesscorrect
B. High-performance infrastructurecorrect
C. Enhanced commercialization featurescorrect
D. Fully open native platformcorrect
View answer
Correct Answer: ABCD
Question #8
In the micro-services’ practical guidance, what information needs to be configured before the local service is started to enable the micro-service to be successfully registered to the service center on Huawei Cloud?
A. Monitoring Center Address
B. Configure Center address
C. AK/SK and other certification informationcorrect
D. handler
View answer
Correct Answer: C
Question #9
Which of the following are the key features of Huawei Cloud Distributed Database Middleware DDM Service? (Multiple Choice)
A. Uninterrupted business, automatic horizontal splitting and smooth expansioncorrect
B. Compatible with SQL syntaxcorrect
C. Can withstand PB-level data volume, million-level concurrency, ten times as much as a single-machine database connectioncorrect
D. The cluster is highly available and can automatically recover from failures in secondscorrect
View answer
Correct Answer: ABCD
Question #10
Which of the following descriptions about bare metal server BMS is wrong?
A. Bare metal servers and virtual machines have virtualization overhead, resulting in a certain loss of computing performancecorrect
B. Bare metal servers are dedicated computing resources for users, and support VPC and security group isolation
C. Bare metal servers are currently divided into two types according to the CPU architecture: x86 instances and Kunpeng instances
D. The billing mode of BMS is yearly and monthly, and does not support pay-as-you-go
View answer
Correct Answer: A
Question #11
Which of the following are commonly used disaster tolerance architecture patterns? (Multiple Choice)
A. Backup and restorecorrect
B. Remote recovery
C. Cold standbycorrect
D. Warm standbycorrect
E. Multi-live modecorrect
View answer
Correct Answer: ACDE
Question #12
Data replication service DRS provides multiple functions such as real-time migration, backup migration, real-time synchronization, data subscription and real-time disaster recovery, among which real-time migration supports multiple network migration methods. Which of the following descriptions about network migration methods does not support live migration?
A. Public network
B. VPN network
C. VPC network
D. Overlay networkcorrect
View answer
Correct Answer: D
Question #13
Which of the following is the goal of the microservice engine CSE?
A. Microservice operation and maintenance lifecycle management
B. Microservice on-line lifecycle management
C. Microservice development lifecycle management
D. Microservice full lifecycle managementcorrect
View answer
Correct Answer: D
Question #14
During the experimental operation, engineer Xiao Li found that the files written after the container was running had disappeared after the container was restarted. After checking the running status of the container, no abnormal error was found. Which of the following causes is the most likely?
A. No persistent storage is mounted for the containercorrect
B. The local storage space of the container image is full
C. The Kubernetes cluster is abnormal
D. There is a problem with the file system in the container
View answer
Correct Answer: A
Question #15
Which of the following is in the category of microservice self-organizing teams? (Multiple Choice)
A. Continuously identify bottlenecks in delivery, use lean methods to quickly verify and optimize, and run in small stepscorrect
B. You Build it, You Run it small team, complete service analysis, development, testing, deployment and operation and maintenancecorrect
C. Organize team design, development, testing and other roles to have a clear division of labor, and each perform its own duties
D. Conway's Law-The design (architecture) of a product or system is restricted by the communication structure of its production organizationcorrect
View answer
Correct Answer: ABD
Question #16
Which of the following is the function of Huawei Cloud Distributed Message DMS service?
A. Asynchronous decoupling between modulescorrect
B. Horizontal database expansion
C. Key-Value data cache
D. Mass transaction
View answer
Correct Answer: A
Question #17
Which of the following are the uses of typical middleware? (Multiple Choice)
A. Distributed database middleware: supports massive datacorrect
B. Load balancing: support massive accesscorrect
C. Message queue: module asynchronous decouplingcorrect
D. Cache database: hotspot data cachecorrect
E. Security service: Apply WAF security
View answer
Correct Answer: ABCD
Question #18
Threshold alarms detect the upper and lower limits set by the indicators defined in the threshold rules. If the trigger conditions are met, an alarm message will be sent and a custom action will be executed. The current alarms on HUAWEI CLOUD can be notified to the operation and maintenance staff through which channels? (Multiple Choice)
A. SMScorrect
B. Mailcorrect
C. WeChat
D. QQ
View answer
Correct Answer: AB
Question #19
Regarding the description of Huawei Cloud Application Service Grid ASM, which of the following statements is wrong?
A. Provide integrated solutions for traditional microservice SDKs such as Spring Cloud and Dubbo
B. Cloud application service grid development framework is not limited to language
C. Ability to provide container-based gray scale publishing and traffic management
D. It is necessary to integrate the Istio Community Edition SDK to realize application accesscorrect
View answer
Correct Answer: D
Question #20
In response to the various management needs of cloud operation and maintenance, HUAWEI CLOUD has launched a three-dimensional operation and maintenance solution to perform multi-dimensional monitoring of cloud services in real time. Through application and resource alarm association, log analysis, distributed call tracking and other technologies, the rapid diagnosis and repair of minute-level problems can be realized to ensure the long-term stable operation of applications. Which of the following options do
A. Cloud Audit Service CTScorrect
B. Database Security Service DBSS
C. Application performance management service APM
D. Application operation and maintenance management AOM
View answer
Correct Answer: A
Question #21
As more and more enterprises go to the cloud, security on the cloud has become an important topic that needs attention. There are several major security requirements for enterprises to go to the cloud. Which of the following descriptions of security requirements on the cloud is wrong?
A. The business on the cloud pursues business continuity without interruption, and the web application firewall VAF and anti-DDOS high-defense services are all for this purpose
B. To protect the data stored on the cloud, it needs to be kept confidential, mainly restricting the inaccessibility of cloud service providers and external userscorrect
C. The enterprise architecture on the cloud still needs to meet compliance requirements
D. Enterprise cloud security pursues high efficiency in operation and maintenance, operation can be audited, and applicable products include CBH
View answer
Correct Answer: B
Question #22
HUAWEI CLOUD provides complete solutions ranging from TaaS, PaaS, big data, and EI enterprise intelligence. Which service does not belong to the application operation and maintenance platform?
A. Cloud performance testing service CPTScorrect
B. Application operation and maintenance management service AOM
C. Cloud audit service CTS
D. Application performance management service APM
View answer
Correct Answer: A
Question #23
The microservices architecture will face multiple dimensions. Which of the following are the challenges that the microservices architecture needs to face? (Multiple Choice)
A. The probability of failure increases, the monitoring and tracking is difficult, the calling frequency is high, the calling chain is long, cross virtual machine and the uncontrollable factors of VLAN communication increase
B. The components can be freely selected according to the needs of the service, and the microservices manage their own data without worrying about conflicts
C. Data is no longer centrally managed and distributed to individual microservices, and regular transaction management cannot cross service boundaries
D. Easy to implement automated testing, clear test cases, clear external dependencies, and easy piling (API pre-defined)
View answer
Correct Answer: AC
Question #24
The cloud architecture design is very flexible and does not need to master UML.
A. True
B. Falsecorrect
View answer
Correct Answer: B
Question #25
By using the API gateway, the company can reduce the R&D investment of the enterprise, focus on the core business of the enterprise, and improve operational efficiency. At the same time, it can also help users improve their monetization service capabilities. Which of the following descriptions about API gateways is wrong?
A. Simplify the service architecture, quickly complete the decoupling of the internal system of the enterprise and the separation of the front and back ends through standardized and standardized API interfaces
B. The API gateway adopts synchronous flow control method and does not support asynchronous flow control method, so as to realize refined second-level flow controlcorrect
C. It can be seamlessly connected with the function workflow service, and supports the open use of the function workflow service in the form of API
D. Through the API gateway, the internal service capabilities of the enterprise can be opened to partners in the form of standard APIs
View answer
Correct Answer: B
Question #26
There are many types of data in the Internet of Vehicles scenario, some of which are time-related and have a very large amount of data, such as motion track records, battery data, monitoring data, etc. Which of the following types of data services is recommended?
A. Time series databasecorrect
B. Cloud database
C. Distributed database middleware
D. Document database
View answer
Correct Answer: A
Question #27
Which of the following is not a programming model supported by the CSE microservice development framework?
A. gRPC
B. POJOcorrect
C. JAX-RS
D. SpringMVC
View answer
Correct Answer: B
Question #28
Which of the following cache engines does the HUAWEI CLOUD Distributed Cache DCS service include? (Multiple Choice)
A. Rediscorrect
B. Memcachedcorrect
C. IMDGcorrect
D. MySQL
View answer
Correct Answer: ABC
Question #29
The TP99 delay is the minimum time required to satisfy 99% of network requests.
A. Truecorrect
B. False
View answer
Correct Answer: A
Question #30
Which of the following is the goal of the microservices engine CSE?
A. Microservice operation and maintenance Lifecycle Management
B. Microservice online Lifecycle Management
C. Microservice Development Lifecycle Management
D. Microservice Product Lifecycle Managementcorrect
View answer
Correct Answer: D

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