• Online, Self-Paced
Course Description

Networks are constantly sending data to deliver messages and keep network services working, but those data packets may contain sensitive information like passwords. In this course, you'll examine how an attacker can gain access to sensitive data through packet sniffing. You'll learn how attackers can manipulate DHCP, which can allow them to then intercept target host communications. Next, you'll explore how attackers can manipulate ARP by taking advantage of the default functions of the ARP protocol. You'll move on to examine how attackers trick users into sharing personal information through DNS poisoning. Finally, you'll learn about common security controls that allow networks to communicate, while still adding layers of scrutiny, control, and obfuscation. This course is one in a series that helps to prepare you for the Certified Ethical Hacker v11 (312-50) exam.

Learning Objectives

{"use network attacks to bypass network switches in order to sniff packets","identify the different attacks an attacker can use to access sensitive data through network switches","recognize the physical ways attacks can access sensitive data","recognize the types of packets sniffing attackers can use to access sensitive data"}

Framework Connections

The materials within this course focus on the NICE Framework Task, Knowledge, and Skill statements identified within the indicated NICE Framework component(s):

Specialty Areas

  • Threat Analysis
  • Vulnerability Assessment and Management


If you would like to provide feedback for this course, please e-mail the NICCS SO at NICCS@hq.dhs.gov.