Which native mechanism does OSPF use to prevent loops in MPLS VPNs?

A. CE devices that run OSPF set the DN bit toward the PE router

B. PE devices that run OSPF clear the DN bit toward the CE router

C. CE devices that run OSPF clear the DN bit toward the PE router

D. Creation of PE to PE OSPF sham link across the MPLS-created super backbone

E. PE routers verify OSPF domain IDs used by CE OSPF processes

F. PE devices that run OSPF set the DN bit toward the CE router

Across a large WAN network, there will be new video traffic being distributed from a single source at any given time however, the video source might originate from different parts of the multicast domain at different times . Which multicast technology provides for this multicast traffic to be distributed with optimal path selection to the source?

A. Any source Multicast.

B. PIM sparse mode.

C. Bidirectional PIM.

D. Source Specific Multicast.

What is design considerations of policy-based routing?

A. It decreases failure detection time

B. It can create microloops during network reconvergence

C. It routes traffic destined to a set of users through different exit points

D. It uses RSVP to differentiate traffic flows, so queuing mechanisms can prioritize them

Which statement about SDN framework environment is true?

A. The control plane functions is split between a SDN controller and the networking element

B. The data plane is pulled from the networking element and put in a SDN controller

C. The data plane is controlled by a centralized SDN element

D. The control plane is pulled from the networking element and put in a SDN controller

E. The control plane and data plane is pulled from the networking element and put in a SDN controller and SDN agent

VPLS is implemented in a Layer 2 network with 2000 VLANs. Which must be the primary concern to ensure successful deployment of VPLS?

A. The underlying transport mechanism

B. PE scalability

C. Flooding is necessary to propagate MAC address reachability information

D. VLAN scalability

As network designer, which option is your main concern with regards to virtualizing multiple network zones into a single hardware device?

A. Fate sharing

B. CPU resource allocation

C. Congestion control

D. Security

E. Bandwidth allocation

A BGP route reflector in the network is talking longer than expected to converge during network changes. Troubleshooting has shown that the router cannot handle all the TCP acknowledgements during route updates. Which action can be performed to tune device performance?

A. Increase the size of the large buffers

B. Decrease the size of the small buffers

C. Increase the keepalive timers for each BGP neighbor

D. Increase the size of the hold queue

Which major block is not included in the ETSI network Function Virtualization reference framework?

A. Network Function Virtualization Infrastructure

B. Network Function Virtualization Management and Orchestration

C. Network Function Virtualization Policy Manager

D. Virtualized Network Function/ Element Management Systems

Which option is a critical mechanism to optimize convergence speed when using MPLS FRR?

A. IGP timers

B. Bandwidth reservation

C. Shared risk link groups

D. Down detection

Which three items do you recommend for control plane hardening of an infrastructure device? (Choose three)

A. To enable unused services

B. Warning banners

C. Routing protocol authentication

D. Control Plane Policing

E. Redundant AAA servers

F. SNMPv3