Quality of Service (QoS)

Correct Answer: Traffic shaping

In Quality of Service (QoS) configurations for a network, traffic shaping is the correct technique used to manage the allocation of bandwidth and minimize latency, especially for applications like streaming media services that are sensitive to delays. Traffic shaping regulates the flow of data packets to ensure steady streaming performance by controlling the rate at which packets are sent outOther options, such as link aggregation, routing protocol tuning, and network address translation, are not specifically targeted at latency minimization in the context of QoS for streaming media:- Link aggregation combines multiple physical links to improve bandwidth and redundancy, but it doesn't prioritize traffic types. - Routing protocol tuning can optimize the paths data takes across the network, but it's a more general practice for network efficiency and not specifically for latency-sensitive traffic- Network address translation (NAT) facilitates the remapping of IP addresses from one realm to another, enabling unique identification within an internal network and the internet. It does not directly manage or prioritize traffic to reduce latency.

Correct Answer: Differentiated Services (DiffServ)

Differentiated Services (DiffServ) is most suitable for prioritizing VoIP traffic. Given the issues of choppy voice quality and delays, DiffServ approach can mark packets at the interface level to ensure they are handled appropriately throughout the network, allowing priority to be given to VoIP traffic, thereby improving its quality. Although First-In, First-Out (FIFO) Queue, Weighted Fair Queuing (WFQ) and Class-Based Weighted Fair Queuing (CBWFQ) are all QoS techniques, they are not as efficient for prioritizing specific types of traffic like DiffServ. FIFO does not differentiate between different types of traffic, and thus, can't prioritize VoIP Traffic. WFQ and CBWFQ are more suited for ensuring fair bandwidth allocation among multiple types of traffic, rather than for specifically prioritizing VoIP Traffic.

Correct Answer: Traffic Shaping and Policing

Traffic Shaping and Policing is the correct answer. This Quality of Service (QoS) technique allows a network to control and prioritize different types of traffic based on various factors, ensuring that important business applications are given priority over non-business-related ones. It also assists in the management of bandwidth utilization, which is exactly what the company wants to do. First-In, First-Out (FIFO) Queue, on the other hand, does not prioritize traffic and hence, important business applications and non-business-related ones will be treated equally. This won't be ideal for this scenario. Class-Based Weighted Fair Queuing (CBWFQ) is a mechanism for traffic scheduling that may be used to allocate bandwidth, but it does not involve limiting non-business application bandwidth utilization outright. And lastly, Weighted Random Early Detection (WRED) is used to avoid network congestion by randomly dropping packets before capacity is reached, rather than limiting non-business application bandwidth.