H13-621 Online Practice Questions and Answers

During the following several kinds of optical fiber network topology, which topology network can extend equipment (nodes) up to?

A. switching topology

B. Point to point

C. the arbitration ring

D. hybrid networking

When Snapshot rolled back, the source LUN must map to the host to use it.

A. True

B. False

In creating remote copy, if the size of the source LUN is 500G, then in remote array, which of the following target LUN's capacity cannot be used for remote replication? (Select 3 Answers)

A. 300G

B. 400G

C. 500G

D. 600G

If it spent 10s reading 100 100KB file and 0.1s reading a 10MB file, then how many times is the later transmission bandwidth by the former?

A. 40188 times

B. 1 time

C. ten times

D. 100times

Before configuring the remote replication, need to establish a physical link connection between the local array and remote array, a controller of the back-end storage system cannot be connected the two controllers of the remote storage system at the same timE.

A. True

B. False

In SAN storage network deployment, which of the following opinions of optical switches zone are correct? (Select 3 Answers)

A. the recommended way is that a zone only has two ports, one belongs to the starter, the other belongs to the target

B. a port can belong to multiple zones

C. zone's type can be divided into hard zone and soft zone

D. under the condition of optical switch cascade, the same zone port cannot be distributed on the two switches

Storage systems and network fault diagnosis follow the following principles, diagnose network firstly, and then diagnose network elements; analysis of the high level alarm first, then analysis of low level alarm, which of the following description of scene is wrong?

A. When FC SAN and IP SAN system is abnormal, which should check if the middle exchange and link is normal first, and check the server and storage nodes.

B. analyze the important failure of influence business and data for storage, such as RAID, LUN, the failure of file resources, link failures, controllers Fault, and so on.

C. resource abnormity or failure (piece of equipment/file/with library) positioning problem generally follow the order from the host to storage

D. storage system failure occurs business interruption and loss of data, no matter what kind of scene, you must recover data first, then business

How to troubleshooting whether there is impact performance of failure hard disk in storage system (slow)?

A. under CLI check RAID LUN state, whether if it is abnormal

B. in storage debug mode, through the command of iostat -x -d 1 to check IOof storage system, the average service time of some disk (svctm) over a period of time is obviously more than other disk, %util is close to 1OO%, and other disk are free, can judge the hard disk performance

C. on host side check LUN IO state under multipath

D. check the link state in host side and ISM storage interface

Two reliability for 8O% of the components of a serial system, how much reliability of this system?

A. 64%

B. 6O%

C. 8O%

D. 96%

Through which two ways can detect the hard disk bad way in 0ceanStor storage system? (Select two Answers)

A. read/write failure automatic analysis

B. hard disk medium active scan

C. power test

D. business data flow anomaly detection