Networking Troubleshooting Tools

Question 1

In Windows operating systems, displays or refreshes IP settings for network interfaces.

Answer 1

ipconfig

Question 2

In Unix-like operating systems, displays or configures IP settings for network interfaces.

Answer 2

ifconfig

Question 3

In Windows, displays diagnostic information for NetBIOS over TCP/IP.

Answer 3

nbtstat

Question 4

Displays a variety of network information including active connections, routing tables, and traffic statistics

Answer 4

netstat

Question 5

Performs DNS lookups and displays the IP address of a given host name

Answer 5

nslookup

Question 6

Tests the reachability and latency of a given host.

Answer 6

ping

Question 7

Displays the hop-by-hop path to a given host, along with the round-trip time to each hop

Answer 7

traceroute/tracert

Question 8

In Windows, behaves similarly to tracert by pinging every hop along the route to determine relative latency

Answer 8

pathping

Question 9

Displays additional information for each interface, including name, physical address, DNS, and DHCP settings.

Answer 9

Ipconfig /all

Question 10

Releases the current IPv4 address for all interfaces, or for a single specified interface. Useful for removing bad DHCP settings.

Answer 10

Ipconfig /release [interface]

Question 11

Renews the current IPv4 or IPv6 address for all interfaces, or for a single specified interface. Useful for checking or repairing DHCP settings.

Answer 11

Ipconfig /renew [interface]

Question 12

Like /release , but for IPv6 address.

Answer 12

Ipconfig /release6 [interface]

Question 13

Like /renew , but for IPv6 address

Answer 13

Ipconfig /renew6 [interface]

Question 14

Displays the current contents of the DNS cache

Answer 14

Ipconfig /displaydns

Question 15

Deletes the DNS cache. Useful when the current cache has incorrect entries

Answer 15

Ipconfig /flushdns