ECSA Week 4 Exam With Complete Solutions
Latest Update
What is the method to find the domains hosted on the same server? ANSWER reverse IP
lookup
Returning no packet back from a nmap SYN scan means what? - ANSWER The port is
filtered by a firewall
Returning a SYN/ACK back from a nmap SYN scan means what? - ANSWER The port is
open
Returning a RST back from a nmap SYN scan means what? - ANSWER The port is closed
Connect Scan (Full Open Scan) nmap switch - ANSWER nmap -sT -v www.example.com
(or IP)
This option is used to open a connection to every listening port on the machine -
ANSWER Connect Scan (Full Open Scan)
SYN Scan (Half-open Scan) nmap switch - ANSWER -sS
Xmas scan nmap switch - ANSWER -sX
Xmas Scan set which flags - ANSWER Sets the FIN, PSH, and URG flags, lighting the
packet up like a Christmas tree.
Xmas scan does not work with what OS - ANSWER Current Windows
, Receiving a RST back from a nmap Xmas scan means what? - ANSWER the port is
considered closed
Receiving a no response back from a nmap Xmas scan means what? - ANSWER The port
is open | filtered
Xmas scan The port is marked filtered if an - ANSWER ICMP unreachable error (type 3,
code 0, 1, 2, 3, 9, 10, or 13) is received
Xmas Scan info - ANSWER The major advantage to these scan types is that they can
sneak by some non-stateful firewalls and packet filtering routers. Another positive to
these scan types is that they are a little more stealthy than even a SYN scan. However,
don't count on this factor-most modern IDS products can be configured to look for them.
The large negative to these are not all systems implement the RFC 793 letter or law.
Nmap ACK scan switch - ANSWER -sA
ACK scan information- ANSWER It has been used to map out firewall rulesets
determining whether they are stateful or not and which ports are filtered.
a FIN scan does not work on which OS - ANSWER WIndows
ACK scan- If the TTL value of RST on particular port is less than the boundary value of
64 - ANSWER then that port is open
ACK scan - If the WINDOW value of RST packet on particular port has a non-zero value, -
ANSWER then that port is open
NULL scan does not work against any current __________(OS) - ANSWER NULL scan
does not work against any current version of Microsoft Windows
Latest Update
What is the method to find the domains hosted on the same server? ANSWER reverse IP
lookup
Returning no packet back from a nmap SYN scan means what? - ANSWER The port is
filtered by a firewall
Returning a SYN/ACK back from a nmap SYN scan means what? - ANSWER The port is
open
Returning a RST back from a nmap SYN scan means what? - ANSWER The port is closed
Connect Scan (Full Open Scan) nmap switch - ANSWER nmap -sT -v www.example.com
(or IP)
This option is used to open a connection to every listening port on the machine -
ANSWER Connect Scan (Full Open Scan)
SYN Scan (Half-open Scan) nmap switch - ANSWER -sS
Xmas scan nmap switch - ANSWER -sX
Xmas Scan set which flags - ANSWER Sets the FIN, PSH, and URG flags, lighting the
packet up like a Christmas tree.
Xmas scan does not work with what OS - ANSWER Current Windows
, Receiving a RST back from a nmap Xmas scan means what? - ANSWER the port is
considered closed
Receiving a no response back from a nmap Xmas scan means what? - ANSWER The port
is open | filtered
Xmas scan The port is marked filtered if an - ANSWER ICMP unreachable error (type 3,
code 0, 1, 2, 3, 9, 10, or 13) is received
Xmas Scan info - ANSWER The major advantage to these scan types is that they can
sneak by some non-stateful firewalls and packet filtering routers. Another positive to
these scan types is that they are a little more stealthy than even a SYN scan. However,
don't count on this factor-most modern IDS products can be configured to look for them.
The large negative to these are not all systems implement the RFC 793 letter or law.
Nmap ACK scan switch - ANSWER -sA
ACK scan information- ANSWER It has been used to map out firewall rulesets
determining whether they are stateful or not and which ports are filtered.
a FIN scan does not work on which OS - ANSWER WIndows
ACK scan- If the TTL value of RST on particular port is less than the boundary value of
64 - ANSWER then that port is open
ACK scan - If the WINDOW value of RST packet on particular port has a non-zero value, -
ANSWER then that port is open
NULL scan does not work against any current __________(OS) - ANSWER NULL scan
does not work against any current version of Microsoft Windows
