Section 5.3

Question 1

Command for DNS search

Answer 1

dig or nslookup

Question 2

Command to identify all IP addresses on a network

Answer 2

nmap -sn [net/subnet address in CIDR]

Question 3

Command to display local arp cache

Answer 3

arp -a

Question 4

Command to list active connections

Answer 4

netstat

Question 5

Command to show all router hops on its way to the destination

Answer 5

Linux: traceroute
Windows: tracert

Question 6

Command for a list of all active tcp connections

Answer 6

netstat -t

Question 7

Command for a list of all active udp connections

Answer 7

netstat -u

Question 8

Command to display local device’s routing table

Answer 8

Linux: route
Windows: route print

Question 9

Command to check if a port is open

Answer 9

telnet [IP] [port]

Question 10

Command to show various information while on a network device

Answer 10

show interface/config/route

Question 11

What makes Spectrum Analyzers different from WiFi Analyzers?

Answer 11

they can analyze a wider range of frequencies

Question 12

What tool can be used to do your own network speed test?

Answer 12

iPerf

Question 13

What are IP Scanners used for?

Answer 13

to discover every device connected to a network

Question 14

Command to display the device you’re on

Answer 14

hostname

Question 15

Command to show detailed network information on Windows

Answer 15

ipconfig /all

Question 16

How can you get the MAC address of a network device if it’s not in the local arp cache?

Answer 16

ping [IP]
then
arp -a