EMT Practice Test

1. Question Content...

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Question1: Both Spark and MapReduce are the most basic distributed computing frameworks in Hadoop. Regarding the description of the common points between the two, which of the following is correct?

Question2: Because stand-alone RDS has certain limitations in processing large quantities of data, a company decided to use Huawei Cloud DDM distributed middleware + RDS instance to solve the problems of limited stand-alone RDS expansion capabilities and slow database response. Which of the following description about the advantages of DDM distributed middleware + RDS instance over stand-alone RDS are correct? (Multiple choice)

Question3: If the user needs to pass the three-level certification, the final evaluation score must be greater than or equal to which of the following scores?

Question4: Deploy the Guestbook application on Servicestage. Guestbook is composed of three container application components: Frontend is the front store component, and the code logic is implemented in Frontend to achieve the following two goals: 1 Reduce the communication between Frontend and redis-maste Possible network loss: 2 can make the primary and backup storage scattered on different nodes, reducing the impact of downtime. Which of the following statement are correct? (Multiple choice)

Question5: Which of the following options does Huawei Cloud Database Security Service support for protection? (Multiple choice)

Question6: Regarding the characteristics of microservices, which of the following descriptions is correct? (Multiple choice)

Question7: What kind of loading mechanism is used to load the implementation class of the HttpServerFilter extension mechanism into the user microservice?

Question8: After the user migrates the host using the HUAWEI CLOUD SMS service, which of the following will change between the destination end and the source end?

Question9: Which of the following cloud services can be used with the HUAWEI CLOUD RDS for SQL Server database instance? (Multiple choice)

Question10: An e-commerce website is bound to experience a sudden increase in traffic during the promotion season. When the existing resources are insufficient, you can choose to close or abandon some unimportant and poor-performance services to avoid occupying resources. In order to ensure that the main business functions are normal, which of the following microservice governance methods is implemented by this mechanism?

Question11: Huawei Cloud GPU-accelerated ECS elastic cloud server uses NVLink technology to achieve optimal multi-card interconnection.

Question12: Among the following user roles, who is responsible for modifying the routing table and subnet ACL to ensure that the database instance can be accessed by other hosts in the VPC?

Question13: In order to collect and analyze a large amount of user data generated by shopping websites, an e-commerce company plans to deploy a mongoDB database on the cloud.
After testing, it is found that the database requires 500w PPS packet sending and receiving capabilities and 20Gbps intranet bandwidth. Among the following ECS elastic cloud servers, which type is most suitable to deploy this database application?

Question14: D. LI is called data mining machine age lake, which is the interface through which the components are compatible, so as to provide a unified multi-state data on the cloud-analytical skills?

Question15: If tenants have high requirements for data key storage, even if the operation and maintenance personnel of HUAWEI CLOUD cannot obtain the relevant keys directly, which of the following encryption schemes is recommended for tenants?

Question16: A company uses ECS services on Huawei Cloud. In order to ensure high service availability and achieve the effect of switching to other availability zones as soon as an availability zone fails, which of the following Huawei Cloud services is recommended for tenants?

Question17: Huawei Cloud DCS distributed storage report service provides support for RedisfOMemcached database version. Which of the following descriptions about the comparison of Reds and Memcached is wrong?

Question18: Which of the following synchronization methods does the MySQL database support? (Multiple choice)

Question19: A start-up company is mainly engaged in live broadcast business, and mobile live broadcast is based on the https protocol (HTTP- based streaming media transmission protocol). The video stream is cut into multiple ts small files and transmitted via http, and the live broadcast service is deployed on Huawei Cloud.
To ensure the quality of the live broadcast, which of the following solutions are recommended for tenants?

Question20: In order to prevent tenants from suffering losses due to virtual machine escape attacks, which type of cloud service does Huawei recommend that tenants purchase?

Question21: Which one of the following descriptions about high availability and disaster tolerance of user business systems is correct?

Question22: HUAWEI CLOUD Application Operations Management (AOM) is centered on cloud applications and provides a one-stop three-dimensional operation and maintenance platform for enterprise applications.

Question23: After a user changes the step array of a Huawei Cloud RDS read-only instance, other instances in the cluster will also synchronize this change.

Question24: An advertising design company has a large number of design documents stored on HUAWEI CLOUD 0BS, and the company's ECS instance (in the same area) also needs to access the documents in OBS.
As the public network access is affected by the network quality, it is decided to use the intranet domain name to access 0BS. Which of the following methods can tenants use to access the files in the 0BS bucket via the intranet domain name?

Question25: What is the default scheduling mode of Spark Jab?

Question26: A company uses the RDS for mysql service of HUAWEI CLOUD. As the amount of data increases, the disk of the RDS instance is found to be full. Which of the following methods can be used to solve it? (Multiple choice)

Question27: What is the default scheduling mode of Spark Job?

Question28: What dependency packages need to be introduced for the Edge service?

Question29: In which of the following aspects are there significant differences between the relational database MySQL and the document database MongoDB? (Multiple choice)

Question30: Huawei Cloud ELB provides traffic distribution services for multiple ECS instances. It has high availability,low cost,Safe and reliable features.
Which of the following descriptions of Huawei Cloud ELB features are correct? (Multiple choice)

Question31: A customer uses the ECS service of HUAWEI CLOUD. In order to share files on the ECS instance with other ECS instances more conveniently, which type of storage service is recommended for tenants?

Question32: HUAWEI CLOUD DCS Distributed Cache Service provides support for Redi s and memcached two memory database versions. Which of the following descriptions about the comparison of Redi s and ecached features is wrong?

Question33: Users can build their own virtual clusters on the BMS bare metal servers they have purchased.

Question34: Which of the following descriptions about the read-only instance of the HUAWEI CLOUD RS database is wrong?

Question35: A customer in the VPC in an ECS (bound EIP) on the deployment of the SNAT service for the entire VPC provides the ability to access the public network, for which the custom route adds a default route (destination address 0.0.0.0 /0), the next hop is the ECS with the SNAT service deployed. At this time, if you bind EIP to another ECS in the VPC, what will happen?

Question36: Which of the following is the mainstream document database?

Question37: When users use HUAWEI CLOUD SMS to migrate window hosts, the basic unit of file system block (Block) is used for migration, and only valid block data is migrated to the destination server, thereby improving migration efficiency.

Question38: Which of the following is not the cause of the large delay between the main and standby recovery of MySQL database?

Question39: When a user configures an ECS host in a HUAWEI CLOUD VPC subnet and wants hosts in other subnets under the same VPC to use it as a NAT proxy, but finds that this configuration has not successfully met the requirements, which of the following statement is correct?

Question40: Distributed computing framework MapReduce is used for parallel computing of large-scale data sets. Which scenarios are mainly suitable for? (Multiple choice)

Question41: Which of the following are typical application scenarios for PostgreSQL data? (Multiple choice)

Question42: Which of the following fields are used for Huawei Cloud BMS bare metal servers? (Multiple choice)

Question43: When users use HUAWEI CLOUD monitoring service CES to monitor basic resources, they need to install CES Aent to use the full monitoring function.

Question44: Which of the following types of clusters does Huawei Cloud CCE Cloud Container Engine support? (Multiple choice)

Question45: When the user uses the Huawei Cloud 0ST tool to migrate the object storage.
Which of the following situations requires resource assessment in the migration material?

Question46: When the user uses the "site monitoring" function of Huawei Cloud CES, which of the following time intervals cannot be selected for the PING monitoring frequency?

Question47: An enterprise plans to configure a management network in a VPC, and at the same time deploy web services in this VPC, so Internet traffic and background management traffic must be allowed. Enterprise network management interface can only hope to receive the specified IP address ssh login, and web services IP can handle any Internet IP address visit.
Which of the following options can be used to achieve this requirement in a host?

Question48: When the vCPU allocated by HUAWEI CLOUD ECS spans different physical CPU, the performance will fluctuate. The host cluster generally uses affinity scheduling to avoid this situation. Which of the following technologies is used by the HUAWEI CLOUD underlying platform to achieve CPU affinity scheduling?

Question49: Which of the following components is suitable for storing structured column-oriented large table data?

Question50: Which of the following features can be provided by HUAWEI CLOUD Application Operation and Maintenance Management AOM? (Multiple choice)

Question51: Which of the following components must be relied upon by the HBase service? (Multiple choice)

Question52: The following describes the affairs in APM of HUAWEI CLOUD Application Performance Management. Which options are correct? (Multiple choice)

Question53: A company's containerization and micro-service transformation and development of services can not only improve the utilization of resources, but also realize the smooth migration of applications between development, testing, and production. It provides a good environment foundation for the rapid start-up and release of applications.

Question54: The user is preparing to containerize the existing business system and deploy the business in the HUAWEI CLOUD CCE cluster. Compared with traditional applications, what advantages will the new system bring to users when the new system is launched? (Multiple choice)

Question55: When users use HUAWEI CLOUD SMS service to migrate a host with 500GB of data, with a source bandwidth of 20MB, how long does it theoretically take to complete the migration?

Question56: Which of the following scenarios reflects the design principles of lightweight communication microservices?

Question57: What indicators are currently covered by HUAWEI CLOUD RDS monitoring? (Multiple choice)

Question58: Which of the following databases has excellent geographic location computing functions and complete transaction support?

Question59: The combination of hardware and software is the advantage of Huawei Cloud Services compared to other cloud service providers. Which of the following hardware that provides computing power is an ARM-based CPU chip?

Question60: Tenants can use IAM's identity provider to interface with their original identity authentication system. This completes the copying and automatic creation of account information.

Question61: Which of the following is not a problem with the monolithic architecture?

Question62: Which of the following descriptions about the source and destination networks of the DRS migration database are correct? (Multiple choice)

Question63: After a user has purchased a Huawei Cloud ECS elastic cloud server with CentOS 7.2 operating system.
Which of the following operations does not violate Huawei Cloud ECS usage restrictions?

Question64: Which of the following descriptions about Huawei Cloud ELB service is wrong?

Question65: Which of the following descriptions about the comparison of OLTP and OLAP features is wrong?

Question66: Which of the following is not the operating mode of Spark?

Question67: An enterprise user uses a dedicated line to connect the VPC on Huawei Cloud and the IDC network under the cloud. An FTP Server is deployed on the ECS in the VPC. Now the IDC under the cloud needs to access the FTP Server, but the service must pass the specified IP (It is not provided in the 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16 network segment). How does the enterprise administrator need to configure to meet this requirement?

Question68: If the bandwidth of the WAF purchased by the tenant is less than the actual business traffic. It may cause the tenant's business to be unavailable, stuck, or delayed for a certain period of time.

Question69: For scenarios where the user business needs to store billions of rows and millions of columns of large table data, and real-time level read and write access to the large table data, which of the following big data components can be used?

Question70: When users implement the migration project, which of the following measures can reduce the risk of data inconsistency? (Multiple choice)

Question71: When the operation and maintenance administrator use APM for transaction operations, which of the following is not a transaction operation supported by APM?

Question72: Which of the following are typical application scenarios of the ServiceStage microservice solution? (Multiple choice)

Question73: Using HUAWEI CLOUD's dedicated cloud line, users can realize the interconnection and private network communication between the private network and the VPC. Which of the following scenarios can be interconnected through the cloud dedicated line? (Multiple choice)

Question74: For services with high data consistency requirements, when performing database port switching, which of the following switching strategies should be selected?

Question75: Which of the following descriptions about the principles of HDFS and the role of each module are correct? (Multiple choice)

Question76: The user uses the backup migration function provided by HUAWEI CLOUD DRS. By uploading the backup file of the local Microsoft sqL Server database to the object storage service, and then restoring it to the target teaching database, in this scenario, which of the following descriptions about full backup and incremental backup is wrong?

Question77: The user is going to deploy a website application using Huawei Cloud Container Service. After purchasing the Huawei Cloud CCE cluster, different deployment methods were adopted for the various components of the website.
Which of the following is unreasonable?

Question78: When a user designs a VPC public network access method on HUAWEI CLOUD, the web server must be accessible by the public network, and it must have a highly available architecture.
In order to achieve this requirement, which of the following configuration ways should be used? (Multiple choice)

Question79: HUAWEI CLOUD ELB is a service that distributes traffic to multiple ECS instances and supports Layer 4 and Layer 7 forwarding protocols. When the seven-layer service is loaded, which of the following methods is mainly used to distribute traffic to ECS instances? (Multiple choice)

Question80: HUAWEI CLOUD EVS service supports the conversion of disk types from ordinary IO disks to ultra-high IO disks.

Question81: Which of the following descriptions about the characteristics of the real-time data stream processing solution is wrong?

Question82: A company has developed a microservice using AVA-Chassis and PHP offline, and now it needs to be connected to the ServiceStage platform. Which application access method is recommended?

Question83: A company has deployed a public-facing forum through Huawei Cloud. In order to avoid Cc attacks on registered accounts, the company puts forward the following two requirements to forum administrators.
Requirement 1: Login protection, only 3 attempts to log in within five minutes are allowed, more than 3 times will prevent them from logging in again within 1 hour.
Requirement 2: Web search, a single user searches the page no more than 30 times in one minute, if it exceeds 30, the verification code will be verified.
In response to the above requirements, which features of DDOS can be used by tenants to complete the above requirements?

Question84: Regarding the description of the relationship between HUAWEI CLOUD MRS service and other HUAWEI CLOUD services, which of the following options are correct? (Multiple choice)

Question85: Which of the following descriptions about the read-only instance of Huawei Cloud RDS database is wrong?

Question86: To construct the project on DevCloud directly on ServiceStage, which of the following methods should be used for construction?

Question87: When the user uses the Huawei Cloud AOM service. Which of the following Agent plug-ins must be installed?

Question88: Huawei Cloud Cloud Audit Service CTS is a professional log audit service in cloud security solutions that provides the collection, storage, and query functions of various cloud resource operation records. Which of the following scenarios is CTS not suitable for?

Question89: The user has applied for separate Huawei Cloud accounts for the two departments. VPC1 (CIDR. 192. 168. 0.0/16) and 2 subnets: SubnetA (192. 168. 1. 0/) are created in account A. 24), SubnetB (192. 168. 10. 0/24), account B created VPC2 (CIDR: 192.168.0.0/16) and 2 subnets: SubnetX (192.168.10.0/24), SubnetY (192.168 .100.0/24):
Due to business needs. SubnetA and SubnetX need network interoperability.
The user understands that Huawei Cloud provides peer-to-peer connection capabilities and configures it according to the known manual, but it has not been able to achieve the goal. Which of the following is the most likely reason?

Question90: An enterprise has three different departments, each with its own HUAWEI CLOUD account. The HR department deployed a file sharing website to share the data of all on-the-job employees. The business department uploads the employee's attendance data to their VPC database. The finance department needs to access the HR department's attendance data to calculate the employee's salary. Which of the following configurations can be used by the administrator of the company to meet the needs of the three departments?

Question91: Which of the following descriptions about the backup and recovery of Huawei Cloud RDS cloud database are correct? (Multiple choice)

Question92: When an e-commerce platform uses the ServiceStage gray release function, there is no need to stop the upgrade, and within a period of time, the new and old versions will provide services online at the same time.

Question93: The cloud connection of HUAWEI CLOUD can realize mutual access of VPCs under different accounts.