Which of the following protocols is responsible for the resolution of IP addresses to MAC addresses？（）

单项选择题WhichofthefollowingtypesofDNSrecordsenablessupportforemail？（）

A. A
B. MX
C. PTR
D. AAAA

单项选择题AfterapplyinganewdrivertoaNIC，theserverrebootsandfailstorestart.Whichofthefollowingis theBESTwaytoresolvetheproblem？（）

A. Boot using recovery console and restore the previous driver.
B. Boot the server， press F8 and access last known good configuration.
C. Restore the server using last backup tape.
D. Boot the server with ASR option.

单项选择题A user reports they cannot access the network share folder， the users workstation is configured to use automatic IP. When the administrator checks the IP address the response returns as 169.254.0.5. Which of the following should the administrator verify？（）

A. That there are no DHCP relay servers
B. That the user account on Active Directory is not locked
C. That the network card driver is not installed incorrectly
D. The network connection is functioning

单项选择题WhichofthefollowingsettingsisthejumpersettowheninstallingaDVD-RWastheseconddeviceonanIDEcable？（）

A. ID0
B. ID2
C. Cable select
D. Master

单项选择题WhichofthefollowingmediatypesistheMOSTdurableinharshenvironments？（）

A. Disk
B. Tape
C. Optical
D. Flash