The following description of DAS is incorrect:

ADAS is directly connected to the designated storage device on the server using them

BDAS is divided into internal DAS and external DAS

CThe hard disk inside the server is not DAS

DExternal DAS can be connected to the server accessing them through FC protocol or SCSI protocol

Answer : C

The following describes RAID 10, which are correct? (Multiple choice)

ARAID 10 is used in scenarios with high requirements for speed and fault tolerance

BRAID 10 requires at least 4 member disks

CIn RAID 10, if two member disks in a subgroup fail, the data is read normally

DIn RAID 10, the data is first mirrored and then striped

Answer : A, B, D

Which ports in the FC switch can communicate with each other is determined by the zone.

ATRUE

BFALSE

Answer : A

A device has only one WWNN number, but it can have multiple WWPN numbers.

ATRUE

BFALSE

Answer : A

The following two descriptions are correct:

Description 1: Synchronous remote replication, when the primary storage fails, the amount of data lost can be 0.

Description 2: When the host is a Linux-based file system, asynchronous remote replication must be used.

Adescription 1 and description 2 are correct

BDescription 1 pair, description 2 wrong

CDescription 1 wrong, description 2 pairs

Ddescription 1 and description 2 are wrong

Answer : B

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