Which command is used to view the NetBIOS name cache?

Which command is used to view the NetBIOS name cache?

• A. nbstat
• B. netstat
• C. arp
• D. grep

Answer: (A)

Viewing NetBIOS name cache focuses on the locally stored mappings of NetBIOS names to IP addresses used by NetBIOS over TCP/IP. This cache speeds name resolution by avoiding repeated lookups. The command that shows this NetBIOS-specific cache is nbstat. When you run it with the option to display the current cache (often nbstat -c), you see entries that map NetBIOS names to IP addresses and their time-to-live, which helps diagnose why certain hosts resolve the way they do. Other commands serve different purposes: netstat reveals active connections and ports, arp shows IP-to-MAC address mappings in the ARP table, and grep is a text-search utility not related to NetBIOS name caching.

Viewing NetBIOS name cache focuses on the locally stored mappings of NetBIOS names to IP addresses used by NetBIOS over TCP/IP. This cache speeds name resolution by avoiding repeated lookups. The command that shows this NetBIOS-specific cache is nbstat. When you run it with the option to display the current cache (often nbstat -c), you see entries that map NetBIOS names to IP addresses and their time-to-live, which helps diagnose why certain hosts resolve the way they do.

Other commands serve different purposes: netstat reveals active connections and ports, arp shows IP-to-MAC address mappings in the ARP table, and grep is a text-search utility not related to NetBIOS name caching.