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Question # 1
Which of the following can be used as classifiers of customer traffic? (Choose three)
A. DSCP value
B. 802.1p value
C. IP DF bit
D. TCP/UDP port numbers
E. HTML version number
Question # 2
Which of the following statements regarding DSCP bits are TRUE? (Choose three)
A. The three most significant (first) bits define 8 forwarding classes.
B. The three least significant (last) bits of the DSCP specify the drop probability.
C. The full 8 bits of the TOS field are used for DSCP.
D. To convert DSCP to IP precedence, the three most significant (first) bits are matched.
E. DSCP provides for eight drop probabilities.
Question # 3
What is the 6-bit binary representation of DSCP value AF21?
A. 010011
B. 100010
C. 010001
D. 001100
E. 010010
Question # 4
Which of the following are examples of metrics for QoS?
A. Signal degradation, attenuation, line loss
B. Latency, FIFO, WRED
C. Delay, jitter, packet loss
D. SNR, queue depth, latency
E. Attenuation, dispersion, latency
Question # 5
The IP ToS field consists of ________ bits, of which ________are used. The _________most significant (first) bits define precedence.
A. 8, 6, 3
B. 8, 8, 6
C.16, 8, 4
D. 8, 6, 4
E. 24, 16, 8
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