Cisco_Sem3_Mod9+10

True or False, a device implements QoS only when it is experiencing some type of congestion

• True

• False

True or False, the typical congestion points related to network transmission quality are aggregation, speed mismatch, and LAN to WAN

• True

• False

True or False, Packetization delay is the variable amount of time a frame or packet waits to be transmitted on the link.

• True

• False

True or False, it has been estimated that mobile video traffic will reach 60.9 exabytes per month by 2022

• True

• False

True or False, Latency for VOIP traffic should be no more than 1500 milliseconds (ms)

• True

• False

True or False, First In First Out (FIFO) queuing buffers and forwards packets in the order of their arrival

• True

• False

True or False, Low Latency Queuing allows delay-sensitive packets such as voice to be sent first (before packets in other queues), giving delay-sensitive packets preferential treatment over other traffic

• True

• False

There are three models for implementing QoS, select all THREE

• IntServ model

• DiffServ model

• RiffServ model

• Best-effort model

True or False, Integrated Services explicitly manages network resources to provide QoS to individual flows or streams, sometimes called microflows

• True

• False

True or False, Cisco IOS QoS provides queuing mechanisms, such as weighted random early detection (WRED), that start dropping lower-priority packets before congestion occurs

• True

• False