Which are the two fundamental ways in which IEEE 1588 differs from SyncE? (Choose two.)
A. In addition to frequency synchronization, it achieves ToD synchronization to achieve phase alignment which is required for multi-channel communication.
B. It is a purely-based solution, with the actual clock values being passed inside the payloads of special packets dedicated to that task.
C. It offers two major changes over traditional Ethernet to make it suitable for clock distribution: a mandated clock accuracy and the ESMC protocol for clock selection, distribution, management, traceability, and failover.
D. SyncE is a Cisco proprietary ToD technology where IEEE 1588 is a industry standard recommended for interoperability across vendor devices.
E. IEEE 1588 applies to voice-only systems or with low-bandwidth data traffic.
Answer: A, B
A network engineer is responsible for implementing a solution with Cisco IOS XR Software that insures continuous forwarding during a control plane failure. Which two technologies should the engineer consider? (Choose two.)
A. TE FRR
B. IP FRR
C. graceful restart
What is the PPMP label used for?
A. for the ingress replication model with BIDIR-PIM in an overlay model
B. only for the inter-AS mVPN models that use mLDP
C. for the partitioned mVPN model with PIM signaling in an overlay model
D. only for unicast over MPLS VPN
E. for all the default MDT and mVPN models
What statement about Transit AS is true?
A. Traffic and prefixes originating from Transit AS are carried across a Stub AS to their Source AS.
B. Traffic and prefixes originating from Source AS are earned across a Transit AS to reach their Destination AS.
C. Traffic and prefixes originating from Transit AS are carried across a Stub AS to their Destination AS.
D. None of the above.
An engineer wants to configure MPLS TE Fast Reroute with link protection on five routers. Which methodology can reduce configuration on the point of the local repair router and successfully complete the task?
A. Configure a backup tunnel on the PLR.
B. Enable the autotunnel backup feature.
C. Configure a backup tunnel on the tunnel head end router.
D. Enable the autotunnel primary feature.
Question No : 4
What is one of the primary overhead fields associated with the Optical Payload Unit (OPU)?
A. path monitoring
B. tandem connection monitoring activation deactivation (TCM ACT)
C. Payload Structure Identifier (PSI)
D. multiframe alignment signal (MFAS)
E. section monitoring
Answer : C
Question No : 3
Which three of these are optical channel data unit (ODU) overhead fields? (Choose Three)
A. general communication channel 0 (GCC0)
B. section monitoring
C. reserved (RES)
D. general communication channels 1 and 2 (GCC1 GCC2)
E. tandem connection monitoring activation deactivation (TCM ACT)
Answer : C, D, E
Question No : 2
IP over DWDM management models (Choose two.)
A. Segmented Management
B. Integrated Management
C. Virtual Transponder
D. Traffic Management
Answer : A, B
Question No : 1
Which three modes are the operating of HDLC? (Choose three)
A. asynchronous balanced mode (ABM)
B. normal response mode (NRM)
C. normal peer mode (NPM)
D. asynchronous client mode (ACM) E. asynchronous response mode (ARM)
Answer : A,B,E