O'Reilly logo

CCNA Routing and Switching ICND2 200-105 Official Cert Guide by Wendell Odom

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 18. Quality of Service (QoS)

This chapter covers the following exam topics:

4.0 Infrastructure Services

4.3 Describe Basic QoS concepts

4.3.a Marking

4.3.b Device trust

4.3.c Prioritization

4.3.c.(i) Voice

4.3.c.(ii) Video

4.3.c.(iii) Data

4.3.d Shaping

4.3.e Policing

4.3.f Congestion Management

Quality of Service (QoS) refers to tools that network devices can use to manage several related characteristics of what happens to a packet while it flows through a network. Specifically, these tools manage the bandwidth made available to that type of packet, the delay the packet experiences, the jitter (variation in delay) between successive packets in the same flow, and the percentage of packet loss for packets of each class. These tools balance ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required