An engineer has an implemented a QOS architecture that requires a signaling protocol to tell routers which flows of packets require special treatment.
Which two mechanisms are important to establish and maintaining QOS architecture? (choose two)
A. classification
B. tagging
C. packet scheduling
D. admission control
E. resource reservation
DE according to this: https://www.pearsonhighered.com/assets/samplechapter/0/1/3/0/0130460990.pdf
Resource reservation signaling
mechanisms inform the network entities on the QoS requirements of the multimedia applications
using the network resources. The network devices will use this information to manage the network resources (i.e., bandwidth) in order to accommodate such requirements.
The resource reservation mechanisms include the following functions:
• Provision of resource reservation signaling that notifies all devices along the
communication path on the multimedia applications’ QoS requirements.
• Delivery of QoS requirements to the admission control mechanism that decides if there
are available resources to meet the new request QoS requirements.
• Notification of the application regarding the admission result.
Correct answer is A,D
Admission control is related with NAC
Hi Hosam,
Did you pass the exam? what material did you study?
explanation
https://www.pearsonhighered.com/assets/samplechapter/0/1/3/0/0130460990.pdf