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Q31. Which quality level will MLS1 deliver to POC2-1 on its Synchronous Ethernet (SyncE) port 1/2/7?
A. QL-EEC1
B. QL-PRC
C. QL-SSU-A
D. QL-STU
Answer: B
Q32. Which statement correctly describes Virtual Routing and Redundancy Protocol (VRRP) operation?
A. The current master interface originates frames using its physical interface's Media Access Control (MAC) address as the source
B. A non-owner mode Virtual Router ID (VRID) can have a master and only one backup interface C. The master interface sends its physical MAC address in response to virtual interface IP address Address Resolution Protocol (ARP) requests
D. A higher numeric priority value increases the time a virtual interface waits to attempt to become master
Answer: A
Q33. Which statement describes the operation of the ITU-T Ethernet Synchronization Messaging Channel (ESMC)?
A. The ESMC transports time stamped packets for time of day and phase synchronization
B. The ESMC provides the bit stream upon which the slave clocks set their frequency
C. The ESMC provides a logical channel through which the slave traces its clock source
D. The ESMC describes the slave clock's quality and stratum level
Answer: C
Q34. Which command example correctly configures a 7750 Service Router (SR) for Synchronous Ethernet (SyncE) support?
A. configure card 1 mda 1 sync-e
B. configure card 1 ethernet sync-e
C. configure system sync-if-timing sync-e no shutdown
D. configure port 1/1/1 ethernet sync-e no shutdown
Answer: A
Q35. Given the local Provider Edge (PE) router configuration shown and the following condition:
. All Service Access Points (SAPs) and spoke SDPs are operational Upon startup, which pseudowire status value will the local PE router signal for the standby spoke SDP?
A. 0x00,Pseudowire forwarding
B. 0x01,Pseudowire not forwarding
C. 0x20, Pseudowire forwarding Standby
D. 0x21,Pseudowire in standby and not forwarding
Answer: A
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Q36. An SROS router obtains its timing exclusively from its BITS input port. The router sets Quality Level (QL) SONET Traceability Unknown (STU) on this Superframe (SF) framed DS1 BITS reference. What must you configure on this master router to pass the best clock quality level to the downstream Synchronous Ethernet (SyncE) slave nodes while maintaining traceability to the DS1 source?
A. Enable "ql-override prs" on the BITS reference
B. Enable "ql-override prs" on the master's SyncE ports
C. Enable "ql-selection prs" on the BITS reference
D. Set the master router to choose its source by quality level
Answer: A
Consider the topology and MLS1 configuration shown, and given the following conditions:
* MLS1 delivers the PRC traceable clock to the network
* Reference 1 receives Quality Level (QL) - EEC1
* Reference 2 receives QL - SSU-A
* BITS sets QL-SSU-B
Q37. Click on the exhibit.
You must configure Label Distribution Protocol (LDP)-sync on the CSA1-to-MLS1 preferred static route. The route must forward packets over the preferred route path as show in the diagram. Given the following:
. Bidirectional Forwarding Detection (BFD) must be enabled on the preferred route
. BFD is configured on the interfaces
. The CSA1 router must choose the preferred route in normal operations
. LDP sync timers are configured on the interfaces
. LDP is enabled on the interfaces
Which command enables LDP sync on the CSA1 preferred static route targeting MLS1's system interface?
A. configure router static-route 192.0.2.0/32 next-hop 192.0.2.5 Idp-sync
B. configure router static-route 192.0.2.0/32 next-hop 192.0.2.13 bfd-enable Idp-sync
C. configure router static-route 192.0.2.0/32 next-hop 192.0.2.5 bfd-enable Idp-sync
D. configure router static-route 192.0.2.5/32 next-hop 192.0.2.0 Idp-sync
Answer: C
Q38. As which clock type must an IEEE 1588v2 node operate in order to slave to the Primary Reference Clock (PRC) and serve as a master to downstream nodes?
A. Boundary
B. Ordinary Master
C. Ordinary Slave
D. Peer-to-peer transparent clock
E. End-to-end transparent clock
Answer: A
Q39. Given the cell site router configuration shown:
The local Provider Edge (PE) router originates a redundant iPipe service terminated on each of two remote PE routers. Which statement correctly describes the iPipe service operation?
A. The local PE router will assign to the Customer Edge (CE) device the IP address defined in the SAP DNS context
B. The remote PEs will load-balance base station destined packets through both return spoke SDPs
C. The remote PE routers forward base station packets through the iPipe service associated with the active spoke SDP D. The local PE router signals the base station's IP address to the remote PE in the Targeted Label Distribution Protocol (T-LDP) label messages
Answer: C
Q40. Considering the configuration shown, and given the following conditions:
* The 7705 Service Access Router (SAR) is a Precision Time Protocol (PTP) v2 master on domain 1
* It is configured for the ITU-T G.8265.1 profile
* ref1 is an Extended Superframe (ESF) DS1 and is qualified
* The DS1 source indicates in its SSM messages that it is synchronized to a Stratum 3 clock
* ref2 is a Synchronous Ethernet (SyncE) port and traces its source to a Stratum 1 reference Which Quality Level will the 7705 SAR master announce to its slave routers?
A. QL-DUS
B. QL-EEC2
C. QL-STU
D. QL-PRS
Answer: D