nMAP and Other Key Tools

Question 1

nMap is a

Answer 1

open source security scanner for fingerprinting

Question 2

TCP SYN (-sS)

Answer 2

Fast technique referred to as half open- no ack includes port state

Question 3

TCP connect (-sT)

Answer 3

half open but does require privilege. Full TCP and not very stealthy

Question 4

TCP Flags
(-sN)
(-sF)
(-sX)

Answer 4

Unusual TCP Headers
Header bit to Zero
Unexpected FIN
Xmas Scan

Question 5

Port range (-p)

Answer 5

by Default nMap scans 1000 commonly used ports. - p to specify a port range

Question 6

-sV option

Answer 6

Banner Grabbing known as version but for enumeration.