Practice Free H13-811_V3.5-ENU Exam Online Questions
In an IT system, there is a possibility that the bound elastic public IP address may be blocked due to attacks. When configuring a NAT gateway to access the public network, which of the following measures is recommended for users to provide high reliability of the system?
- A . Configure multiple DNAT rules in one VPC subnet
- B . Bind multiple EIP addresses when configuring DNAT rules
- C . Configure multiple SNAT rules in one VPC subnet
- D . When configuring SNAT rules, bind multiple EIP addresses
When a user logs in to an elastic cloud server using VNC, the interface prompts that the authentication is successful, but the system screen is black and there is no response to input. This may be because the elastic cloud server has been logged in by other users using VNC.
- A . True
- B . False
Through the () service, the access traffic can be distributed to the traffic distribution control service of multiple elastic cloud servers at the back end according to the forwarding strategy. The external service capabilities of the application system can be expanded through traffic distribution, and the fault tolerance of the application can be improved.
Engineer A deployed the Nginx service through containers and virtual machines respectively. Which of the following descriptions about the comparison between containers and virtual machines in this scenario is wrong?
- A . Containers are highly portable and easy to deploy
- B . Containers start faster than virtual machines
- C . Containers provide better isolation than virtual machines
- D . Containers are lighter than virtual machines
Which of the following descriptions about the advantages of Huawei Cloud Enterprise Host Security Service HSS is wrong?
- A . Agent takes up little resources and is already built into the cloud server, so no additional installation is required.
- B . Provide comprehensive protection before, during and after the event to reduce the risk of intrusion
- C . Supports installing Agent on Huawei Cloud ECS, BMS, and offline hosts
- D . Possessing a rich detection library to provide precise protection
Which of the following descriptions about the "expected number of instances" in the elastic scaling service is wrong?
- A . Triggering the scaling policy fails to adjust the expected number of instances
- B . You can trigger scaling activities by manually adjusting the expected number of instances
- C . The expected number of instances cannot be less than the minimum number of instances
- D . The expected number of instances cannot be greater than the maximum number of instances
Which of the following are typical application scenarios of the elastic scaling service AS? (Multiple choice)
- A . Image Processing
- B . Interactive Forum
- C . Live video streaming website
- D . E-commerce platform
When creating an OBS bucket, users can set different bucket ACL policies, including private, public read, public read and write, etc. If the user wants only the user to manage and access the bucket, the bucket policy needs to be set to ()
Which of the following descriptions about the use of elastic load balancing is wrong?
- A . Allocate service node pressure
- B . Traffic can be forwarded across availability zones to achieve real-time business disaster recovery
- C . Only supports traffic forwarding of Layer 4 protocols TCP/UDP
- D . If a backend server fails, elastic load balancing will distribute new requests to other healthy backend servers.
Which of the following descriptions of cloud computing deployment models are correct? (Multiple choice)
- A . Public clouds are usually built by operators or cloud service providers and sold or leased to the public.
- B . Hybrid cloud is generally built by operators or cloud service providers, integrating the features of public cloud and private cloud, and is sold or leased to the public.
- C . Private cloud is usually deployed within the enterprise for internal use
- D . Industry clouds generally have the characteristics of a certain industry and belong to "large private clouds" or "small public clouds"