4.1 Organizational Security

Question 1

NMap

Answer 1

sends specially crafted packets to the target host(s) and then analyzes the responses to determine the open ports and services running on those hosts. Also, nmap can determine the versions of the applications being used on those ports and services. Nmap is a command-line tool for use on Linux, Windows, and macOS systems

Question 2

NetStat

Answer 2

(network statistics) tool is a command-line utility that displays network connections for incoming and outgoing TCP packets, routing tables, and some network interface and network protocol statistics. Still, it cannot identify open ports and services on a host with their version numbers

Question 3

Ping

Answer 3

tool is used to query another computer on a network to determine whether there is a valid connection

Question 4

WireShark

Answer 4

open-source packet analyzer used for network troubleshooting, analysis, software and communications protocol development, and education

Question 5

.ps1

Answer 5

If you want to save a series of PowerShell commands in a file to rerun them later, you effectively create a PowerShell script. This is simply a text file with a .ps1 extension. The file contains a series of PowerShell commands, with each command appearing on a separate line

Question 6

Port Scanning

Answer 6

technique used to identify open ports and services available on a network host

Question 7

IP Fragmentation Attack

Answer 7

a common form of denial of service attack, in which the perpetrator overbears a network by exploiting datagram fragmentation mechanisms

Question 8

An attacker has issued the following command: nc -l -p 8080 | nc 192.168.1.76 443. Based on this command, what will occur?

Answer 8

Netcat will listen on port 8080 and output anything received to a remote connection on 192.168.1.76 port 443