CCNA系列認證CCNA(640-553)單項選擇題每日一練(2019.01.16)

來源：考試資料網

1 Which example is of a function intended for cryptographic hashing？（）

2 Which algorithm was the first to be found suitable for both digital signing and encryption？（）

3 Which result is of securing the Cisco IOS image by use of the Cisco IOS image resilience feature？（）

4 Which protocol will use a LUN as a way to differentiate the individual disk drives that comprise a targetdevice？（）

5 Which statement is true about vishing？（）