are essential for the protection of data.A．MemoryB．BackupsC．FilesD．Blocks
are essential for the protection of data.
A．Memory
B．Backups
C．Files
D．Blocks
相关考题：
.Waterandairare_______tohumanbeings.Wecannotlivewithoutthem.A.harbourB.functionC.definiteD.essential
The bank has designed a system to prevent the() of credit cards.A、useB、loanC、misuseD、protection
The postal () is very unreliable in this country because postmen are constantly on strike.A. informationB. serviceC. managementD. protection
Which configuration command limits the number of connections supported on a single PPPoE major interface?() A.sessionsB.sa-validateC.split-horizonD.duplicate-protection
Which configuration command prevents a client from establishing multiple PPPoE connections from a single workstation?() A. sessionsB. sa-validateC. split-horizonD. duplicate-protection
Although a natural alternative,such as honey,can be used to sweeten food if this is necessary,we can in fact do without it.Nowadays fibre is considered to be an important part of a healthy diet.In white bread,for example,the fibre has been removed.But it is（ ）in unrefined flour and of course in vegetables.A.currentB.substantialC.presentD.essential
（）is the process of transforming information so it is unintelliglble to anyone but the intended reciplentA.EncryptionB.DecryptionC.SecurityD.Protection
P2DR安全模型是指策略（Policy）、防护（Protection）和响应（Response），还有（）A．检测（Detection）B．破坏（Destroy）C．升级（Update）D．加密（Encryption）