You have been tasked to create a Layer 2 network design that uses vPC to provide resiliency and avoid loops.
vPC removes Layer 2 loops while providing redundancy through which mechanism?
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A. dual-active detection
B. address synchronization
C. strict forwarding rules
D. Bridge Assurance

Refer to the exhibit.

You are designing an IPv4 unicast Layer 3 VPN load-balancing solution. Which L3VPN feature needs to be
configured on the PE routers to support the design requirement?
A. nonmatching route distinguishers
B. matching route target values
C. disable split horizon on PE2 and PE3
D. matching route distinguishers

A metro service provider is planning Resilient Ethernet Protocol for his backbone. Which two aspectsmust be
considered before the network design is finalized? (Choose two.)
A. Two Resilient Ethernet Protocol segments can be connected redundantly at two points. One connection
will be blocked, using the Spanning Tree Protocol defined in IEEE 802.1D.
B. UniDirectional Link Detection Protocol can be enabled on Resilient Ethernet Protocol interfaces to detect
unidirectional failures.
C. The guaranteed convergence recovery time is less than 50 ms for the local segment.
D. A Resilient Ethernet Protocol segment is limited to a maximum of seven devices.
E. VLAN load balancing for optimal bandwidth usage is supported in any Resilient Ethernet Protocol
segment.

In an MPLS-VPN environment, what is the effect of configuring an identical set of route targets for a particular
VRF, but then configuring nonidentical route distinguisher across multiple PE devices?
A. The routes will be correctly handled by the control plane, but there will be instances where routes take up
twice as much memory.
B. The routes will propagate to the remote PE, but the PE will never install them in its forwarding table.
C. The routes will be rejected by the remote PE because they have a different RD than its routes.
D. The routes will not even be sent to any remote PE with a different RD.

Tesla Radio GmbH is going to build a new research lab network based on a set of switches that would connect
to their existing enterprise network. They are considering a design that would guarantee loop-free behavior
within the set of switches. The design would also allow the group of switches to seem like a single switch to
the enterprise network, because it is owned by a separate administrative group. Which Spanning Tree
Protocol should be used to support the design requirements?
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A. IEEE 802.1w
B. IEEE 802.1D
C. IEEE 802.1s
D. IEEE 802.1p

You are designing a Group Encrypted Transport Virtual Private Network solution consisting of 30 group
members. Which measure helps protect encrypted user traffic from replay attacks?
A. counter-based anti-replay
B. time-based anti-replay
C. nonce payload
D. RSA-encrypted nonce
E. digital certificates

If a network design must support rapid convergence on half-duplex interfaces, which IEEE 802.1w capability
should be used?
A. root guard
B. proposal-agreement handshake
C. loop guard
D. UplinkFast

When creating a design plan for IPv6 integration, you decide to use stateless encapsulation of IPv6 packets
into IPv4 tunnels between subscriber CPEs and a border relay. Which deployment technique allows for this
functionality?
A. 6rd
B. Dual-Stack Lite
C. 4rd
D. DSTM

Which mechanism should be added to a network design to identify unidirectional Spanning Tree Protocol
failures through BPDU loss?
A. UDLD
B. loop guard
C. BPDU guard?
D. root guard

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You are the lead IP/MPLS network designer of a service provider called XYZ. You are leading a design
discussion regarding IPv6 implementation in the XYZ MPLS network, using MPLS 6PE/6VPE techniques.
Currently, XYZ provides IPv4 multicast services over an MPLS network by using MVPN, and would like to
provide parallel IPv6 multicast services. Which three multicast solutions should be enabled? (Choosethree.)
A. native IPv6, only for multicast services
B. MPLS 6PE/6VPE, because it provides IPv6 multicast support by default
C. an overlay model using Layer 2 MPLS tunnels
D. PIM-DM to enable IPv6 multicast in conjunction with MPLS 6PE/6VPE
E. MVPN for IPv6 multicast service