Designing Cisco Enterprise Networks (ENSLD) — Question 272

An engineer is designing a QoS solution for a campus. The design must guarantee real-time traffic delivery during congestion, minimize the bandwidth consumption for possible virus or worm attacks, and reduce flooding of excessive traffic during times of congestion. Which two solutions must the engineer select? (Choose two.)

Answer options

• A. Create a policing policy to drop excessive traffic and a strict queue for real-time traffic
• B. Apply queuing on the distribution to core links
• C. Create a scavenger queue for excessive traffic and a strict queue for real-time traffic
• D. Apply queuing on the access to distribution links
• E. Create a shaping policy to drop excessive traffic and a strict queue for real-time traffic

Correct answer: C, D

Explanation

The correct answers are C and D. Option C provides a scavenger queue for non-essential traffic, ensuring real-time traffic is prioritized, while option D applies queuing strategies to manage traffic effectively at the access layer. Options A and E involve policing and shaping, which may not adequately address the need for real-time traffic prioritization during congestion. Option B, while useful, does not directly address the requirements for minimizing excessive traffic and ensuring real-time delivery.