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NEW QUESTION # 104
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?
- A. Service Comb
- B. Web application
- C. Mobile application
- D. Spring Cloud
Answer: A
NEW QUESTION # 105
A certain company's business is often attacked by foreign countries, Hong Kong, Macau, Taiwan and China, and it is found through analysis.
1: Foreign, Hong Kong, Macao and Taiwan attack traffic accounted for 90%, and domestic attack traffic accounted for 10%.
2: Effective visit traffic from foreign countries, Hong Kong, Macao and Taiwan accounted for 5%, and domestic effective visit traffic accounted for 95%.
Therefore, the company's management decided that foreign, Hong Kong, Macao and Taiwan users will follow up to visit the company's business through the new domain name.
Which of the following options can quickly and effectively help this company block attacks or access to the original domain name by traffic from foreign countries, Hong Kong, Macao and Taiwan?
- A. Anti-DdoS
- B. Network ACL
- C. DDOS high defense
- D. VNGFW
Answer: C
NEW QUESTION # 106
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?
- A. Flink
- B. MapReduce
- C. Spark
- D. HDFS
Answer: C
NEW QUESTION # 107
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?
- A. The full backup + incremental backup method needs to complete the full backup and recovery and restore through an incremental backup file to minimize business interruption during the migration process.
- B. Each incremental backup and recovery will keep the target database in the restoring state. At this time, the database cannot be read or written until the last incremental backup is restored.
- C. Use DRS Backup migrate database data replication services provided by IP will be exposed to the public Internet.
- D. Full backup is a one-time database migration, and business needs to be stopped.
Answer: C
NEW QUESTION # 108
The user found that there are many IPs starting with 100 frequently accessing the back-end ECS instance of their ELB, and the security check did not report the problem. Which of the following is the possible reason?
- A. ECS server failure
- B. ELB system health check and availability monitoring
- C. Being under cyber attack.
- D. Access by real users
Answer: B
NEW QUESTION # 109
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?
- A. Memcached is single-core and single-threaded, Redis supports multi-threading, and performance can be improved by increasing the amount of CPU.
- B. The aue value of a single stored object in Memcached cannot exceed 1M. For scenarios exceeding 1M, Redis is recommended.
- C. Memcached does not support persistence of teaching data, Redis can support scenarios that require persistent storage of data.
- D. Memcached is suitable for caching with a simple data structure model, and Redis is suitable for caching farms with complex data structures.
Answer: A
NEW QUESTION # 110
The health check mechanism of HUAWEI CLOUD ELB can identify whether there are unavailable ECS instances in the back-end server group. If there are, these abnormal ECS instances will not be assigned tasks until these ECS instances return to normal. However, in some special application scenarios, the health check needs to be turned off. Which of the following descriptions about turning off the health check is correct?
- A. Both the fourth and seventh floors can close the health check.
- B. The health check can be turned off for the fourth layer service, but the health check cannot be turned off for the seventh layer service.
- C. The health check can be turned off for the seventh layer service, but the health check cannot be turned off for the fourth layer service.
- D. The health check cannot be closed on the fourth and seventh floors.
Answer: A
NEW QUESTION # 111
Regarding the HUAWEI CLOUD cloud connection service, which of the following descriptions is correct?
- A. The cloud dedicated line has the same function as the cloud connection.
- B. Able to achieve mutual visits between different Region VPCs.
- C. VPN can completely replace cloud connection.
- D. It is not possible to achieve mutual visits between VPCs in the same Region.
Answer: B
NEW QUESTION # 112
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)
- A. Anti-affinity deployment of node types for fredis-master and tredis-slave
- B. Affinity deployment of application type to contend and redis-master.
- C. Affinity deployment of redis-mastertDredis-slave node type
- D. Anti-affinity deployment of application type to contend and redis-master.
Answer: A,B
NEW QUESTION # 113
If the MySQL database instance turns on the SSL function, you cannot use the related functions of database security auditing.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION # 114
When users use Huawei Cloud VPN service, if there are multiple consecutive network segments at the remote end, which of the following is the most reasonable approach?
- A. The network segments cannot be aggregated and must be filled in separately.
- B. You can aggregate continuous network segments into one large network segment and fill in the remote network segment.
- C. None of the above is reasonable.
- D. There are several network segments at the remote end, just enter these network segments one by one in the input box, no matter how many network segments there are.
Answer: A
NEW QUESTION # 115
Which of the following big data components are provided in the HUAWEI CLOUD MRS streaming computing cluster? (Multiple choice)
- A. Flume
- B. MapReduce
- C. Kafka
- D. Storm
Answer: A,C,D
NEW QUESTION # 116
Huawei Cloud will sell available empty valve computing resources at a certain discount, which is called auction instance.
Which of the following descriptions about Huawei Cloud's pricing examples is wrong?
- A. The bid instance will automatically delete the instance after 5 minutes after exceeding the expected purchase price.
- B. It is necessary to set the price upper limit of the elastic cloud server when purchasing an instance.
- C. The performance of the competitive instance sold at a discounted price is lower than that of a normal ECS of the same specification.
- D. The price of the auction instance changes in real time with the market supply and demand relationship.
Answer: C
NEW QUESTION # 117
When users use Huawei Cloud DDM distributed database middleware, they need to configure corresponding strategies according to their own business needs.
Which of the following configuration methods of the database read strategy in Huawei Cloud DDM is wrong?
- A. When the business hopes that reads will not affect the primary instance and cannot accept that the data is inconsistent for a short time, configure a read-only instance balance strategy.
- B. When the business needs strong consistent reading, configure the full read main library strategy.
- C. When the business reading pressure is high and the teaching data can be inconsistent for a short time, configure the read load balancing strategy.
- D. The business wants to control the ratio of read masters when the read pressure is high and can accept that the data is inconsistent for a short time, configure a custom read strategy.
Answer: A
NEW QUESTION # 118
PFX is a personal certificate saved in binary format. Generally appear in windows Server.
When a user wants to upload a certificate in this format to a Huawei ELB instance, which of the following operations is correct?
- A. ELB does not support certificates in PFX format. You can only convert them to DER format first. Upload again
- B. ELB does not support certificates in PFX format. It can only be said to be converted into PEM format first. Upload again
- C. The ELB load balance does not support certificates in PFx format. You can only convert them to P7B format first. Upload
- D. Elastic load balancing ELB supports certificates in PFx format. It can be uploaded directly.
Answer: B
NEW QUESTION # 119
Which of the following description of the comparison between Hive and Oracle databases are correct? (Multiple choice)
- A. Hive is an open source and free big data processing tool, Oracle needs a commercial license fee.
- B. Hive is stored on HDFS, Oracle is stored on the local file system.
- C. Hive can be expanded to thousands of nodes, but Oracle can only be expanded to about 100 in theory.
- D. Large amount of data in a single table Hive can be partitioned into buckets. The large amount of Oracle data can only be divided into tables.
Answer: A,B,C,D
NEW QUESTION # 120
A company uses the ECS service of HUAWEI CLOUD. ECS instances are distributed in different VPCs in the same region. In order to facilitate the sharing of data between ECS instances, which of the following solutions are feasible? (Multiple choice)
- A. Use SFS Tubo file system. Through the VPC peer-to-peer connection function. Connect two or more VPCs in the network area to enable these VPCs to communicate with each other.
- B. Use elastic file service SFS. And configure multiple VPC access.
- C. Use cloud hard disk EVS service
- D. Use OBS object storage to mount the OBS parallel file system to the Linux system through the obsfs tool.
Answer: A,B,C,D
NEW QUESTION # 121
Which of the following is not a relational database engine?
- A. SQL engine
- B. Index Engine
- C. Storage Engine
- D. Execution engine
Answer: B
NEW QUESTION # 122
Dedicated Distributed Storage Service (DSS) provides customers with exclusive physical storage resources through multiple technologies such as data redundancy and cache acceleration.
It provide high availability and durability. Which of the following are correct about the advantages of dedicated distributed storage services? (Multiple choice)
- A. Shared physical storage pool resources
- B. Suitable for application scenarios such as HPC, OLAP and mixed load
- C. Ultra-high IO
- D. Provide exclusive physical storage resources.
Answer: B,C,D
NEW QUESTION # 123
Huawei Cloud ELB can distribute user requests to multiple ECS instances according to different strategies. Which of the following descriptions about the "weighted round-robin mode" forwarding strategy is correct?
- A. Distribute the longest-waiting access request to the ECS instance with the strongest processing capability in the back-end elastic cloud server group.
- B. Distribute the access request to the ECS instance of the backend elastic cloud server with the lowest load currently.
- C. Distribute access requests in order according to the weight of the back-end elastic cloud server ECS instance.
- D. Prioritize access requests with the highest priority to ECS instances of backend elastic cloud servers.
Answer: C
NEW QUESTION # 124
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.
- A. False
- B. True
Answer: B
NEW QUESTION # 125
When using a Huawei Cloud RDS instance, users can configure an appropriate parameter group for the instance according to actual business needs. In which of the following situations, the RDS parameter group cannot be changed? (Multiple choice)
- A. The RDS instance is in the process of being restored.
- B. The RDS instance is editing the parameter group.
- C. The RDS instance is restarting, changing specifications, or in an abnormal state.
- D. There is only one parameter group corresponding to the RDS instance database engine.
Answer: A,B,C
NEW QUESTION # 126
Which of the following components must be relied upon by the HBase service? (Multiple choice)
- A. Zookeeper
- B. MapReduce
- C. HDFS
- D. Yern
Answer: A,C
NEW QUESTION # 127
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?
- A. PCI Passthrough
- B. Host Aeregator
- C. NUNA
- D. Anti-Affine
Answer: C
NEW QUESTION # 128
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)
- A. Provide free anti-DDoS attack capability above 20G.
- B. Support elastic expansion based on application load.
- C. No need to purchase expensive load balancing equipment at one time.
- D. Support for disaster recovery in the same city
Answer: B,C,D
NEW QUESTION # 129
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