第61题： 某单位计划购置容量需求为60TB的存储设备，配置一个RAID组，采用RAID5冗余，并配置一块全局热备盘，至少需要（  ）块单块容量为4TB的磁盘。
A.15
B.16
C.17
D.18
答案解析与讨论：www.cnitpm.com/st/450139952.html

第62题： 对某银行业务系统的网络方案设计时，应该优先考虑（  ） 原则。
A.开放性
B.先进性
C.经济性
D.高可用性
答案解析与讨论：www.cnitpm.com/st/4501411175.html

第63题： 在项目管理过程中，变更总是不可避免，作为项目经理应该让项目干系人认识到（  ）。
A.在项目设计阶段，变更成本较低
B.在项目实施阶段，变更成本较低
C.项目变更应该由项目经理批准
D.应尽量满足建设方要求，不需要进行变更控制
答案解析与讨论：www.cnitpm.com/st/450153690.html

第65题： 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
答案解析与讨论：www.cnitpm.com/st/4501722174.html