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Q25. True or False. The service provider has both a VLL (ePipe) service and a VPLS service as shown in the diagram below. At router PE B traffic arriving from both services will have the same 

A. True 

B. False 

Answer: A 


Q26. True or False. WRED should not be used to avoid TCP Slow-Start synch problem? 

A. True 

B. False 

Answer: B 


Q27. Which of the following are possible criteria for classifying packets at the network port ingress on the Alcatel-Lucent 7x50 SR? Choose all that apply. 

A. The EXP bits in the MPLS header 

B. The packet source and destination IP addresses 

C. The packet DSCP bits 

D. The dot1p bits in the frame header 

E. The ID of the SDP transporting the packet 

Answer: A, C, D 


Q28. A network operator has configured the SAP-ingress policy below. Ping traffic is expected to be in queue 3. However, the netwok operator notices that all traffic is put in Queue 1. What is the most 

A. The default forwarding class for all traffic, including ICMP is BE which is put in Queue 1 

B. The SAP has been shutdown 

C. The ip-match criteria has been mis-configured for ICMP traffic 

D. Queue 3 has no rate or CIR configured and thus cannot hold any packets 

E. The SAP-ingress policy has not been applied to the SAP 

Answer: E 


Q29. Which of the following QoS policies does not have a default policy? 

A. Scheduler policies 

B. Service ingress 

C. Service egress 

D. Network queue 

E. Network 

F. Slope 

Answer: A 


Q30. Which of the following are not categories of forwarding classes on the Alcatel-Lucent 7750 SR? Choose 3 answers. 

A. Real-time 

B. Assured 

C. Non-conforming 

D. High Priority 

E. Expedited 

Answer: A, C, E 


Q31. Which of the following statement is true with regards to Q-in-Q on the Alcatel-Lucent 7750 SR? 

A. Q-in-Q defines a mechanism for encapsulating queued DSCP traffic at the provider edge 

B. Q-in-Q is a new protocol that supercedes 802.1p priority-bit mapping in a QoS-aware network 

C. The use of either the inner or outer 802.1p bits in the 802.1q frames for QoS classification can be configured on the Alcatel-Lucent 7750 SR 

D. Q-in-Q is a protocol which re-encapsulates trunked p-bits in an outer label that is mapped into the EXP bits in an MPLS backbone 

E. none of the above 

Answer: C 


Q32. Which of the following is not a policy required to implement QoS on the Alcatel-Lucent 7750 SR? 

A. Sap-ingress policy 

B. atm-td-profile policy 

C. Network policy 

D. Accounting policy 

E. Network-queue policy 

Answer: D