第61題： 某單位計劃購置容量需求為60TB的存儲設備，配置一個RAID組，采用RAID5冗余，并配置一塊全局熱備盤，至少需要（  ）塊單塊容量為4TB的磁盤。
A.15
B.16
C.17
D.18
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第62題： 對某銀行業(yè)務系統(tǒng)的網絡方案設計時，應該優(yōu)先考慮（  ） 原則。
A.開放性
B.先進性
C.經濟性
D.高可用性
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第63題： 在項目管理過程中，變更總是不可避免，作為項目經理應該讓項目干系人認識到（  ）。
A.在項目設計階段，變更成本較低
B.在項目實施階段，變更成本較低
C.項目變更應該由項目經理批準
D.應盡量滿足建設方要求，不需要進行變更控制
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第65題： TheAddress Resolution Protocol(ARP)wasDeveloped to enableCommunication onAn InternetworkAnd performA required function in IP routing.ARP liesBetween layers（  ）of the OSI model,andAllowsComputers to introduce each otherAcrossA network prior toCommunication.APR finds the（  ）address ofA host from its known（  ）address.BeforeADevice sendsADatagram toAnotherDevice,it looks in itsARPCache to see if there isA MACAddressAndCorresponding IPAddress for theDestinationDevice.If there is no entry,the soureeDevice sendsA（  ）message to everyDevice on the network.EachDeviceCompares the IPAddress to its own.Only theDevice with the matching IPAddress replies withA packetContaining the MACAddress for theDevice（except in theCase of “proxyARP”）.The sourceDeviceAdds the（  ）device MACAddress to itsARP table for future reference.
1）A.1And 2
B.2And 3
C.3And 4
D.4And 5
2）A.IP
B.logical
C.hardware
D.network
3）A.IP
B.physical
C.MAC
D.virtual
4）A.unicast
B.multicast
C.broadcast
D.point-to-point
5）A.source
B.destination
C.gateway
D.proxy
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