HCIE-Cloud Computing H13-531_V2.0 Updated Exam

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Question 24

Memory multiplexing refers to the comprehensive use of memory multiplexing single

This technology makes the sum of the memory specifications of the virtual machine larger than the sum of the memory specifications of the server, and improves the virtual memory in the server.

Machine density, the following description of memory multiplexing technology, which one is wrong? ( one)

Options:

After opening the memory reuse of the computing node, the degree of memory reuse that can be achieved is the same as the actual memory of the virtual machine.

proportional to usage

The memory bubble allows the system to actively recycle the physical memory temporarily unused by the virtual machine and allocate it to the need for reuse

memory virtual machine

Memory swap can virtualize the external storage into memory for the virtual machine to use, and temporarily use the memory on the virtual machine.

Data is stored on external storage

Memory sharing allows multiple virtual machines to share memory pages with the same data content

Question 25

Which of the following is wrong in the description of the eBackup backup network topology? (multiple choice)

Options:

In the server-free networking topology, the backup data flow and the service data flow are the same network

For existing business; the biggest impact is the server-free networking topology

In the LAN-Base networking topology, the backup data flow and the service data flow are not the same network

In the LAN-Free networking topology, the backup data flow and the service data flow are not the same network

Question 26

FusionStorage block storage adopts distributed cluster management mode, the system is fully redundant, and there is no single point

Fault. Supports two data redundancy protection mechanisms: multiple copies and EC (Brasure Coding).

Which of the descriptions of copy and EC is wrong?

Options:

The Erasure Coding technology is applied to realize the RAID function between nodes, and the configuration of the protection level is supported.

Any node or any disk failure without affecting data integrity.

Multiple copies can ensure that in the case of server failure, cabinet failure, or even computer room failure, the data is still

While not lost, accessible.

The application of the multi-copy mechanism can copy 2 to 3 copies of the same data, and place different copies in different

On the server, on the cabinet, or even in a different computer room.

Compared with the EC mechanism, the reliability of multiple copies is not reduced, or even higher than the EC mechanism, while the space utilization rate increased significantly.

Question 27

When the operation and maintenance engineer conducts network equipment inspection, it is necessary to check the operation status and link status of network equipment every time state, which of the following operations are in compliance with the network equipment inspection standards for operation and maintenance engineers (multiple choice)