Huawei H13-831 Online Practice Questions and Exam Preparation

Huawei H13-831 Online Questions & Answers

• Question 371:

  Which of the following descriptions of database SQL optimization methods is incorrect?

  A. Use paginated queries to avoid processing full data at one time and to reduce network traffic.
  B. A B-Tree index reduces hard disk operations according to query conditions, improving query efficiency.
  C. Reduce large-scale transaction operations in the business, avoid processing too much data in a single transaction, remove unnecessary queries, ensure all read operations in transactions are necessary, and reduce the amount of locked data.
  D. Appropriately increase the cache capacity, improve the cache hit ratio, and reduce hard disk load.
  C. Reduce large-scale transaction operations in the business, avoid processing too much data in a single transaction, remove unnecessary queries, ensure all read operations in transactions are necessary, and reduce the amount of locked data.

• Question 372:

  HUAWEI CLOUD MapReduce Service (MRS) does not only support unstructured data storage in the cluster but also provides a variety of mainstream computing engines, such as Storm (stream computing), Spark (in-memory computing), and MapReduce (batch processing).

  A. TRUE
  B. FALSE
  B. FALSE

• Question 373:

  During the research stage of business migration to the cloud, enterprises need to collect information about the source-end system. Which of the following descriptions about the information that needs to be collected is incorrect?

  A. You need to collect the effective data volume and disk size of the source host's system disk.
  B. You need to collect the kernel version of the source host operating system.
  C. You need to collect the network bandwidth from the source host to the target platform.
  D. You need to collect the average CPU usage of the source host during the day.
  D. You need to collect the average CPU usage of the source host during the day.

• Question 374:

  Multiple ECS instances need to actively access the Internet, and the most effective way to save EIPs is to apply for a NAT gateway and configure SNAT rules so that multiple hosts share the same EIP address to access the Internet.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 375:

  When using highly scalable cloud databases to handle e-commerce flash sale scenarios, the advantages of cloud databases such as RDS-based automatic scaling and DDM horizontal sharding of business tables are mainly utilized.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 376:

  Which of the following HUAWEI CLOUD security services can effectively protect game servers from host security breaches and ransomware attacks?

  A. Web Application Firewall (WAF)
  B. Host Security Service (HSS)
  C. Access Control List (ACL) Firewall
  D. Anti-DDoS and Anti-DDoS Pro
  B. Host Security Service (HSS)

• Question 377:

  In database and application migration, the UGO object comparison function supports comparison of all database users, permissions, object types, number of objects, and object names.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 378:

  For traditional data center customers migrating to the cloud, which of the following services are required to ensure smooth migration and cloud architecture scalability? (Choose three)

  A. L2CG: Connects to the Layer 2 network of the data center to ensure that migrated workloads retain their original IP addresses.
  B. Private Line: Provides a stable and secure data transmission channel between the cloud and the data center.
  C. VPC: Mirrors the data center's component architecture and allows reasonable subnet planning on the cloud.
  D. DNS: Configures external domain names and maps public network address.
  A. L2CG: Connects to the Layer 2 network of the data center to ensure that migrated workloads retain their original IP addresses.
  B. Private Line: Provides a stable and secure data transmission channel between the cloud and the data center.
  C. VPC: Mirrors the data center's component architecture and allows reasonable subnet planning on the cloud.

• Question 379:

  Data Express Service (DES) is a transfer service for terabytes or petabytes of data to the cloud. It uses physical storage media (USB, eSATA interface disks, etc.) or Teleport to transmit large volumes of data to HUAWEI CLOUD. Which of the following descriptions about DES is incorrect?

  A. If the administrator does not receive the disk within 30 days, the default service has expired.
  B. It is recommended to use DES when migrating more than 10 TB of data to the cloud.
  C. A password is used for data security protection.
  D. The sent disk will be returned after the transfer task is completed.
  B. It is recommended to use DES when migrating more than 10 TB of data to the cloud.

• Question 380:

  When using HUAWEI CLOUD Data Express Service (DES), which of the following descriptions about the differences between the Teleport mode and the disk mode is incorrect?

  A. For disk mode, users can use migration media that meet specifications and mail the media containing data to the Huawei Data Center.
  B. Teleport equipment uses military-grade chassis, GPS tracking, restricted area unlocking, encrypted upload, deduplication compression, and guarantees transportation and transmission security.
  C. In Teleport mode, users can select Teleport devices with high I/O performance provided by Huawei Data Centers as migration media.
  D. Teleport mode tickets generate signature files, while disk mode tickets do not generate signature files.
  D. Teleport mode tickets generate signature files, while disk mode tickets do not generate signature files.