New Release 200-201 CyberOps Associate Questions

Deep packet inspection (DPI) analyzes the data part (and possibly also the header) of a packet as it passes an inspection point, searching for protocol non-compliance, viruses, spam, intrusions, or defined criteria to decide whether the packet may pass or if it needs to be routed to a different destination. Stateful inspection, on the other hand, tracks the state of active connections and determines which network packets to allow through the firewall. While stateful inspection tracks the state of connections (Layer 4 - transport layer), DPI goes further by examining the payload of the packet (Layer 7 - application layer).

References: Cisco’s official documentation and cybersecurity courses would explain the differences between deep packet inspection and stateful inspection, including their respective layers of operation.

The exhibit shows a log that contains information such as the date, flow start, duration, protocol used, source and destination IP addresses and ports, packets, bytes, and flows. This type of detailed metadata is typically associated with NetFlow logs which are used for collecting IP traffic information and monitoring network traffic. References := Cisco CyberOps Associate

A man-in-the-middle attack is a type of cyberattack where an attacker intercepts and alters the communication between two parties who believe they are directly communicating with each other. In this case, the attacker is impersonating mail.google.com and presenting a fake certificate to the endpoint device. The endpoint device detects that the certificate is not issued by a trusted authority and displays an error message. The attacker can then monitor or modify the traffic between the endpoint device and mail.google.com. References:

• Understanding Cisco Cybersecurity Operations Fundamentals (CBROPS) - Cisco, Module 3: Host-Based Analysis, Lesson 3.2: Endpoint Security Technologies
• 200-201 CBROPS - Cisco, Exam Topics, 3.0 Host-Based Analysis, 3.2 Compare and contrast the functionality of these endpoint security technologies
• Cisco Certified CyberOps Associate Overview - Cisco Learning Network, Videos, 3.2 Compare and contrast the functionality of these endpoint security technologies