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Q1. Which three factors slow down network convergence? (Choose three.)
A. constant interface flapping
B. lack of redundant paths
C. inconsistent topology states between routers
D. transport network failing to generate LoS
E. wrong summarization in ABRs
Answer: ACD
Q2. You are hired to design a solution that will improve network availability for users on a campus network with routed access. If the budget limits you to three components, which three components would you recommend in your design proposal? (Choose three.)
A. redundant power supplies in the access routers
B. standby route processors for SSO in the core routers
C. standby route processors for SSO in the distribution routers
D. standby route processors for SSO in the access routers
E. replace copper links between devices with fiber links
Answer: ADE
Q3. Your firm has been awarded a contract to design a Criminal Justice Information Services Version 5.0-compliant network utilizing advanced authentication policies. Which two methods could be utilized? (Choose two.)
A. biometric
B. PKI
C. UKI
D. password
Answer: AB
Q4. An MPLS service provider is offering a standard EoMPLS-based VPLS service to Customer A, providing Layer 2 connectivity between a central site and approximately 100 remote sites. Customer A wants to use the VPLS network to carry its internal multicast video feeds, which are sourced at the central site and consist of 20 groups at 5 Mb/s each. Which service provider recommendation is the most scalable?
A. EoMPLS-based VPLS already carries multicast traffic in a scalable manner.
B. Replicate the multicast traffic on the P routers.
C. Replace VPLS with a Layer 3 MVPN solution to carry the streams between sites.
D. Use GRE tunnels to carry the streams between sites.
Answer: C
Q5. Which two design aspects should a metro service provider consider when planning to deploy REP for his backbone? (Choose two.)
A. Two REP segments can be connected redundantly at two points, one connection will be blocked as per the STP defined in IEEE 802.1d.
B. UDLD can be enabled on REP interfaces to detect unidirectional failures.
C. The guaranteed convergence recovery time is less than 50 ms for the local segment.
D. A REP segment is limited to a maximum of seven devices.
E. VLAN load balancing for optimal bandwidth usage is supported in any REP segment.
Answer: BE
Q6. You are performing a BGP design review for a service provider that offers MPLS-based services to their end customers. The network is comprised of several PE routers that run iBGP with a pair of route reflectors for all BGP address families. Which two options about the use of Constrained Route Distribution for BGP/MPLS VPNs are true? (Choose two.)
A. This feature must be enabled on all devices in the network at the same time.
B. The RR must advertise the default route target filter toward the PE routers.
C. The RRs do not need to advertise any route target filter toward the PE routers.
D. Both PE and RR routers must support this feature.
Answer: BD
Q7. Refer to the exhibit.
Which two options provide the best loop protection in this topology, regardless of a bridged domain configuration? (Choose two.)
A. PVRSTP on all switches
B. REP on all switches
C. MST on all switches
D. BPDU guard on Switch A and Switch D
E. 8032 on ring A-B-C-D
Answer: BE
Q8. 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
Answer: B