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Q86. Active-Active work mode: normally called double living mode, two controllers are in activation state, parallel processing the I/O requests from the application server, once a controller failure or offline, another controller will take over his work in time, and shall not affect its current task.
A. True
B. False
Answer: A
Q87. check host already registered iSCSI target and the command is: iscsiadm -m node on Linux platform
A. True
B. False
Answer: A
Q88. What are the main functions of UltraPath multipath software? (Select 3 Answers)
A. if there is no multipath software, it will not be able to configure the cluster
B. failover
C. the load balancing
D. failback
Answer: B,C,D
Q89. For storage array products, which may cause the failure of Incremental LUN copy?(Select 2 Answers)
A. the source LUN writing strategy write-through
B. target LUN writes policy write-back not mirror
C. link failures
D. there is insufficient space on the resource pool
Answer: C,D
Q90. Wide port definitions about SAS transmission medium, which the following statements are wrong?
A. wide port is composed of multiple phy
B. SAS address of each phy is made up the wide port is the same
C. port connected with wide port is not wide port
D. wide bandwidth is the sum of the each phy bandwidth
Answer: C
Q91. On which component UltraPath multipath software is deployed in the network?
A. OS server
B. switch
C. storage arrays
D. storage virtualization platform
Answer: A
Q92. Which of the following opinions about S5000 version upgrade is wrong?
A. The subsequent releases of both S5000V1R5 and S5000TV1R1 can achieve a smooth upgrade, no need to upgrade the intermediate version
B. S5000TV1R1 upgrade to V1R5, need to upgrade to the V1R2 first, then upgrade to V1R5, directly from V1R1 upgrade to V1R5 may cause the DB loss, management port IP, log, license loss and other unusual problems
C. before upgrade, need to backup the DB, system configuration information and system log
D. before upgrade, don't have to check the version supporting table and manual of the version, because the system support version detection
Answer: D
Q93. Link bandwidth of Storage array remote replication data transmission is not adjusteD.
A. True
B. False
Answer: B
Q94. For system performance test, what kinds of the tools are divided into? (Select three Answers)
A. benchmark test tools
B. business test tools
C. IO test tools
D. data consistency test tools
Answer: A,B,C
Q95. For snapshot , LUN copy and remote replication of storage array, which of the following statement is true? (Select 3 Answers)
A. add resources LUN in resource pool, controller A and B both added and equal size, which is the best
B. create LUN copy if confusing the source LUN and target LUN may result in data loss
C. create remote copy if confusing the source LUN and target LUN may lead to the data unavailable
D. if the space of the resource pools is insufficient, system will automatically use the residual capacity of safe space as a resource pool space
Answer: A,B,C
Q96. With Linux, a disk output is as follows.
# fdisk -l
Disk /dev/sd 80.0 GB, 80026361856 bytes 255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 2805 16386300 83 Linux /dev/sdb2 2806 9729 55617030 5 Extended /dev/sdb5 2806 3825 8193118+ 83 Linux
/dev/sdb6 3826 5100 10241406 83 Linux
/dev/sdb7 5101 5198 787153+ 82 Linux swap / Solaris /dev/sdb8 5199 6657 11719386 83 Linux
/dev/sdb9 6658 7751 8787523+ 83 Linux /dev/sdb10 7752 9729 15888253+ 83 Linux Which of the following opinions are correct?
A. lack of sdb3 and sdb4, there is problem in disk partition table, should be restored partition table
B. the disk only has a primary partition
C. the disk has six logical partitions
D. the disk has seven logical partitions
Answer: B,C
Q97. LUN copy S5000 incremental must interrupt host operations of reading and writing for the data of S5000 source LUN
A. True
B. False
Answer: B
Q98. Analysis of SAN system IO path, when the path of the terminal controller RAID module to the DISK is abnormal, the system will let the end controller to deal with the IO by IBS channel, then IO path is longer, the performance will declinE.
A. True
B. False
Answer: A
Q99. Striping depth change under random write performance rule of RAID5, which of the following is right?
A. with the increase of striping depth, IOPS random write first don't increase, after arrive to a certain degree, IOPS random write will continue increasing
B. with the increase of striping depth, IOPS random write first will continue to increase, after arrive to a certain degree, IOPS random write can achieve stability
C. with the increase of striping depth, IOPS random write first will continue to increase, after arrive to a certain degree, IOPS random write will continue decreasing
D. with the increase of striping depth, IOPS random write first will continue to increase, after arrive to a certain degree, IOPS random write will still continue increasing
Answer: C
Q100. When centrally manage asynchronous remote copy homework through HostAgent, proposed to set asynchronous remote replication time length to:
A. manual
B. at the beginning of the synchronization time waiting
C. at the end of the synchronous time waiting
D. automatic
Answer: A
Q101. Which of the following functions need to use the space of resource pool in storage arrays? (Select two Answers)
A. asynchronous remote replication
B. synchronous remote replication
C. full dose LUN copy
D. increment LUN copy
Answer: A,D
Q102. Which of the following options does not belong to the hardware components of IP SAN?
A. Ethernet connected devices
B. iSCSI Host bus adapters
C. Storage Device
D. initiator Starter
Answer: D