Font size
WorksheetsNmap Options, Host Discovery, and Port Scanning
Total questions: 16
Worksheet time: 10mins
In Nmap, What is the command to disable Ping?
-Pn
-PP
-PS
-P
What host discovery option sends a UDP packet to the given ports For most ports, the packet will be empty, though for a few a protocol-specific payload will be sent that is more likely to get a response?
-PA
-PY
-PPP
-PU
What are the three ICMP Ping types options in Nmap?
(Select 3 answers)
-PY
-PE
-PP
-PM
What is the option for ARP Ping?
-iL
-PR
-ARP
-PE
_______ works by sending packets with a low TTL (time-to-live) in an attempt to elicit ICMP Time Exceeded messages from intermediate hops between the scanner and the target host.
Traceroute
Hping3
SCTP INIT
DNS Resolution
What option tells Nmap to never do reverse DNS resolution on the active IP addresses it finds.
--no-dns
-nDNS
-R
-n
What technique is often referred to as half-open scanning, because you don't open a full TCP connection?
TCP connect scan
TCP SYN scan
UDP scans
TCP NUL
List these options -sN; -sF; -sX
(Select 3 answers)
No DNS Resolution
Xmas Scan
TCP NULL
FIN
Xmas scan sets the ___, ___, and ___ flags, lighting the packet up like a Christmas tree.
FIN, PSH, and URG
SYN, SYN-ACK, and ACK
RST, FIN, and URG
SYN, ACK, and PSH
This technique is exactly the same as NULL, FIN, and Xmas scans, except that the probe is FIN/ACK.
-sM (TCP Maimon scan)
-sW (TCP Window scan)
-sA (TCP ACK scan)
-sZ (SCTP COOKIE ECHO scan
Which Nmap option specifies that you wish to scan fewer ports than the default. Normally Nmap scans the most common 1,000 ports for each scanned protocol. With ___ option, this is reduced to 100.
-T4
-T5
-A
-F
Select the correct option in Nmap for (SCTP INIT scan)
-sX
-sY
-sZ
-sC
True or False
FIN scan (-sF)
Sets just the TCP FIN bit
True
False
______ allows you to determine which IP protocols (TCP, ICMP, IGMP, etc.) are supported by target machines.
NULL Scan
TCP Maimon scan
SCTP COOKIE ECHO scan
IP protocol scan
Select the Nmap option for (TCP connect scan) ?
-TCP
-sT
-sS
-sU
_____ is the default and most popular scan option for good reasons. It can be performed quickly, scanning thousands of ports per second on a fast network not hampered by restrictive firewalls. It is also relatively unobtrusive and stealthy since it never completes TCP connections
TCP SYN scan
-sS
TCP ACK scan
-sA
SCTP INIT scan
-sY
TCP Window scan
-sW
