300-445 Question 251
Select 3Your organization has observed periodic congestion in the core network during peak business hours. An analysis of the traffic patterns reveals that high-bandwidth video conferencing traffic and bursty application updates are the primary contributors to the congestion. As the network architect, you are tasked with recommending optimizations to ensure smoother traffic flow and reduced congestion. Which of the following changes would most effectively address the issue?
- A
Implement Quality of Service (QoS) policies to prioritize video conferencing traffic over application updates.
- B
Increase the link capacity of the core network by upgrading to higher-bandwidth connections.
- C
Redesign the network topology to create additional redundant paths in the core network.
- D
Deploy a traffic shaping policy to throttle high-bandwidth application updates during peak hours.
- E
Disable video conferencing traffic during peak hours to ensure resources are available for other applications.
Show answer and explanation
Correct answers: A, B, D
Explanation
To optimize network capacity planning and reduce congestion during peak hours, a combination of QoS policies, increased link capacity, and traffic shaping is the most effective approach. QoS ensures that critical traffic is prioritized, while increasing link capacity addresses bandwidth limitations. Traffic shaping complements these measures by regulating non-critical traffic. Redesigning the topology may enhance network resilience but does not directly solve the congestion problem, and disabling critical services is not a viable solution.
- A. Correct.
Implementing QoS policies allows critical applications, such as video conferencing, to receive priority treatment on the network, reducing the impact of congestion on essential business operations.
- B. Correct.
Upgrading the link capacity in the core network directly addresses the congestion issue by providing more bandwidth to handle peak traffic loads.
- C. Incorrect.
While adding redundant paths improves network fault tolerance, it does not directly address the congestion caused by specific high-bandwidth traffic during peak hours.
- D. Correct.
Traffic shaping policies can help regulate bursty traffic, such as application updates, by smoothing out their impact during peak hours while maintaining network stability.
- E. Incorrect.
Disabling video conferencing traffic is a drastic and impractical measure that would disrupt essential business functions and is not a recommended optimization strategy.