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问题 #1

Isolation between the Internet and VPC

A. ACL, security group, cloud firewall CFW, DDoS protection service ADS

B. Security group, ACL, cloud firewall CFW, domain name resolution service DNS

C. Security Group, ACL, Cloud Firewall CFW, Cloud Firewall CFWcorrect

D. ACL, Security Group, DDoS Protection Service ADS, Web Application Firewall WAF

正确答案：C

问题 #2

A customer purchased the Huawei Cloud VPN service. After the configuration was completed, the VPN was always disconnected. Which of the following items will cause the configured VPN connection to fail? (Multiple choice)

A. The IPsec policies on both sides are inconsistent

B. The IKE policies on both sides are inconsistent

C. The two ends of the VPN connection are not in the same area

D. The pre-shared key and negotiation information on both sides are inconsistent

正确答案：ABD

问题 #3

An enterprise currently uses the open source Spring Cloud for application development. Currently, it plans to release, deploy, monitor, and operate through Service Stage, Huawei's application management and operation and maintenance platform, and arranges engineer MR Wang to be responsible for the preliminary research and study. MR Wang passed After studying, I learned that there are multiple processes from application development to release. Among the following opinions about MR Wang, which one is wrong?

A. The developed microservice application can be deployed to the microservice engine through ServiceStage

B. ServiceStage is not suitable for application developmentcorrect

C. To develop microservice applications, you first need to select a technology, such as using Java Chassis or using Spring Cloud

D. If the compiled file needs to be modified, the modification does not need to recompile and package the application, and can be deployed to the microservice engine through ServiceStage

正确答案：B

问题 #4

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

A. False

B. True

正确答案：A

问题 #5

Based on Application Orchestration Service (AOS), automated operation and maintenance of applications can be realized.

A. True

B. Falsecorrect

正确答案：B

问题 #6

According to different data storage methods, databases are mainly divided into relational databases and non-relational databases. Which of the following statements about the main advantages of relational databases over non-relational databases is wrong?

A. Stable performance, the query performance of relational database is better than that of non-relational databasecorrect

B. Easy to use, the general sq1 statement makes it very convenient to operate relational databases

C. Easy to understand, the structure of the two-dimensional table is very close to the real world, two-dimensional table, easy to understand

D. Easy to maintain, the ACID property of the database greatly reduces the probability of data redundancy and data inconsistency

正确答案：A

问题 #7

In the Kubernetes architecture, which of the following components can be used as a service to discover and store the state of the cluster and its configuration?

A. Kubelet

B. Kube-proxy

C. API Server

D. Etedcorrect

正确答案：D

问题 #8

An Internet company hopes to use VFN technology to establish a communication channel between the traditional data center and Huawei Cloud VPC, so as to manage cloud platform resources and reduce IT operation and maintenance costs. Which of the following statements about VPNs is wrong?

A. The number of VPN connections has nothing to do with the number of local subnets and remote subnets connected by I

B. It is only related to the number of user's local data centers that the user's VPC needs to connect to.

C. The relationship between the VPN gateway and the remote gateway is one-to-one or one-to-manycorrect

D. VPN connections can also be created between VPN gateways in the same area

E. VPN consists of a VPN gateway and a VPN connection, where the VPN gateway provides the public network egress of the virtual private cloud

正确答案：C

问题 #9

Each arrow line in the topology map of Huawei Cloud Application Performance Management Service represents a call relationship. The color of Apdex's health status is shown in the following figure. The red dashed arrow line indicates that the call status is (). [Multiple questions]

A. Request status is poor. Caused by error

B. Request Status Satisfied

C. Request status is poor due to latency

D. Request status is usually caused by delay

正确答案：C

问题 #10

What is the role of the used Dockerfile when the application is compiling and building in the software development cloud (DevCloud)?

A. Make an application imagecorrect

B. Cloud user authentication

C. Manage project dependencies

D. Save configuration parameters

正确答案：A

问题 #11

Which of the following are container engines? (Multiple Choice)

A. Dockercorrect

B. rktC, WardenD, eclipsecorrect

正确答案：AB

问题 #12

The scope of microservices includes self-organizing teams, technical practices, processes and tools, which complement each other and promote and develop each other.

A. Truecorrect

B. False

正确答案：A

问题 #13

In order to support the database of the million-level online game server, it is recommended that tenants purchase s6/4U|8G elastic cloud server instances for hosting mysql database applications.

A. TRUE

B. FALSEcorrect

正确答案：B

问题 #14

The host monitoring of Huawei Cloud Monitoring Service CES is divided into basic monitoring, operating system monitoring, and process monitoring. Which of the following descriptions about host monitoring is wrong?

A. Supports monitoring of processes in the host, and will collect information such as CPU and memory consumed by active processes by default

B. The monitoring indicators that ECS will automatically report. The monitoring indicators include CPU usage, memory usage and other indicators

C. Because the Agent needs to be installed on the host, the BS host of the bare gold server cannot be monitored through CEcorrect

D. BMS usually uses the BIIC out-of-band management function to monitor it

E. Users can manually stop, update or uninstall Agent according to business needs

正确答案：C

问题 #15

The goal of Huawei Cloud's three-dimensional operation and maintenance is to control the operating status of the system in an all-round way and respond quickly to various problems. Which of the following are the details? (Multiple Choice)

A. Monitor the running status of IaaS layer resourcescorrect

B. Focus only on the operational status of the Paas layer application

C. Master the running status of the application deployed on Paas, support the tracking of faults and performance problems, and facilitate the positioning of operation and maintenance personnel.correct

D. Manage the user's experience guarantee and monitor the running of the service in real time.correct

正确答案：ACD

问题 #16

The goal of HUAWEI CLOUD's three-dimensional operation and maintenance is to control the operating status of the system in an all-round way and quickly respond to various questions. Which of the following are specifically reflected in? (Multiple Choice)

A. Monitoring the running status of laaS layer resourcescorrect

B. Only pay attention to the running status of the Paas layer application

C. Grasp the running status of the applications deployed on Paas, support the tracking of faults and performance issues, and facilitate the positioning of operation and maintenance personnelcorrect

D. Manage user experience guarantees and monitor whether business operations are normal in real timecorrect

正确答案：ACD

问题 #17

What are the advantages of cloud-native applications over traditional applications?

A. Service second recovery

B. Elastic Capacity

C. high performance

D. DevOps rapid iteration

正确答案：ABD

问题 #18

An Internet company uses Huawei Cloud to deploy its business. The operation and maintenance personnel found that the weekly traffic peak basically occurs on Friday night, which is about 30% to 40% higher than usual, resulting in slow business response. The company decided to purchase new resources (cloud services such as AS+ECS) on Huawei Cloud to solve this problem. Considering factors such as cost, which of the following payment methods is the most appropriate when choosing an elastic cloud server?

A. Annual subscriptionb. on demand

B. Monthly subscriptioncorrect

C. bidding

正确答案：B

问题 #19

In the Kubernetes cluster, Ingress provides an externally accessible URL for the Service and routes access traffic to the backend Service. Which of the following statements about Ingress is correct?

A. Because Ingress can expose ports or protocols, it is more convenient to access than Service and Ingress

B. If you need to use the Ingress function, you must first install the Ingress Controller on the Kubernetes clustercorrect

C. You can set an external domain name in the Service, and then access the Ingress through the domain name, and then access the back-end service

D. Ingress is a containerized object that manages external access to services in the cluster. The typical access method is SSH

正确答案：B

问题 #20

After the user deploys the application, he needs to manually embed points in the code so that APM can monitor the performance of the application.

A. True

B. Falsecorrect

正确答案：B

问题 #21

If the companies themselves to develop or maintain middleware, the companies need to deal with their own installation and deployment, fault and maintenance, and software and hardware bug repair; if the use of cloud middleware services can be achieved unboxing.

A. Truecorrect

B. False

正确答案：A

问题 #22

Which of the following descriptions about cloud database RDS is wrong?

A. The primary and standby instances of the active and standby instances share the same IP address, so they need to be deployed in the same AZcorrect

B. The cluster version instance supports the master 1 backup 5 read-only cluster mode, which has higher availability, reliability and scalability

C. Cloud database for RDS supports stand-alone, active/standby, and cluster deployments

D. The stand-alone instance contains only one node, which is cost-effective and suitable for micro-sites and personal learning scenarios

正确答案：A

问题 #23

Which of the following descriptions about the microservice architecture is wrong?

A. Advocate dividing a single application program into smaller service units by function, and using a general lightweight mechanism for communication between servicescorrect

B. Can flexibly use different tools to deal with suitable scenarios

C. The microservice architecture is upgraded and released on a yearly and monthly basis, which is longer than the release cycle of the SOA architecture

D. Frequent communication between business modules of the microservice architecture requires high network stability

正确答案：A

问题 #24

Which of the following descriptions about various network cloud services is wrong?

A. The NAT gateway is the window between the VPC, the Internet, and the private network, and supports cross-subnet deployment and cross-AZ deployment.

B. VPC Endpoint can enable connections between different VPCs, enabling cross-VPC service access

C. Cloud resolution service DNS allows services in the cloud to access the public networkcorrect

D. Elastic public network IP supports binding with NAT gateway

正确答案：C

问题 #25

In order to prevent abnormal access by malicious users, an Internet company controls the data flow in and out of the subnet by configuring outbound/inbound rules associated with the company's subnet to protect the security of the company's subnet. Regarding the priority description of network ACL rules, which one is correct?

A. The value of "priority" has nothing to do with the priority

B. The smaller the value of "Priority", the lower the priority

C. The smaller the value of "Priority", the higher the prioritycorrect

D. The larger the value of "Priority", the higher the priority

正确答案：C

问题 #26

When using Huawei Cloud Distributed Database Middleware DDM service, which of the following order is correct?

A. Create DDM; create logic library; create logic table; import RDS

B. Create DDM; import RDS; create logic library; create logic tablecorrect

C. Import RDS; create DDM; create logic library; create logic table

D. Create DDM; create logical table; import RDS; create logical table

正确答案：B

问题 #27

What are the four major applications of cloud native? () [Multiple choice questions]

A. DevOps

B. Continuous delivery

C. Container

D. Microservices

正确答案：ABCD

问题 #28

What are the advantages of the service provided by Huawei CCE for stateful containers? (Multiple Choice)

A. Data persistent storagecorrect

B. Multi-instance data sharingcorrect

C. Support a storage format

D. Data will not be lost when the container instance fails or is migratedcorrect

正确答案：ABD

问题 #29

TP99 delay is the longest time required to satisfy 99% of network requests. There are four requests that take 10ms, 100ms, 500ms, and 20ms, and the TP99 delay is ().

A. 10ms

B. 500mscorrect

C. 20ms

D. 100ms

正确答案：B

问题 #30

Architectural high availability refers to improving the availability of systems and applications by minimizing the downtime caused by routine maintenance operations and sudden system crashes. Which of the following options is not a high-availability architecture design?

A. Design system elastic scaling

B. Use disaster recovery backup service

C. Use load balancing service to realize traffic distribution control

D. Increase network bandwidthcorrect

正确答案：D

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