Fans of the wildly popular CCIE Written Bootcamp need to check out Practice Exam 2 which has been updated with some more thought-provoking Quality of Service (QoS) questions that will help with the CCIE R&S Written as well as the Lab exam.

For some fun for all, try this question on for size:

Match the QoS marking with the correct definition:

QoS Marking

1. DSCP EF

2. DSCP 20

3. IP PREC 5

4. DE

5. CLP

6. EXP BITS

Definition

a. ATM

b.Diff Serv VoIP

c. Frame Relay

d. MPLS

e.Legacy VoIP Marking

f. Assured Forwarding 22 

The answer is posted in the comments. Enjoy.