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Your network contains a domain controller named DC1 that runs Windows Server 2008 R2 Service Pack 1 (SP1). You need to create a script to clear the address table cache of the physical network interface.
Which tool should you run in the script?
A. dnscmd.exe
B. arp.exe
C. netbtugc.exe
D. nbtstat.exe
Correct Answer: B
Explanation/Reference:
Correct answer(s): B
http://technet.microsoft.com/en-us/library/bb490864.aspx
Arp Displays and modifies entries in the Address Resolution Protocol (ARP) cache, which contains one or more tables that are used to store IP addresses and their resolved Ethernet or Token Ring physical addresses. There is a separate table for each Ethernet or Token Ring network adapter installed on your computer.
How To Clear The ARP Cache in Windows
1. Click the Windows Start Menu Orb and Type cmd into the search box. Right-Click cmd.exe and Click Run as administrator
2. In the prompt that appears, Type in the following commands: netsh interface ip delete arpcache
Other ARP commands:
arp -a Display a list of ARP entries
arp -d <ip #> Delete an IP address from the ARP table
arp -s <ip #> <mac #> Add a static IP to a MAC address in the ARP table Example: arp -s 231.32.54.315 00-FF-23-44-d7-11