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问题 #1

What is the purpose of an edge node in an SD-Access network fabric?

A. Edge nodes identify and authenticate endpoints and register endpoint information with control plane nodes.

B. Edge nodes track endpoint IDs to location mappings, along with IPv4, IPv6, or MAC addresses.

C. Edge nodes are the gateway between the fabric domain and network outside of the fabric.

D. Edge nodes resolve lookup requests from edge and border nodes to locate destination endpoint IDs.

正确答案：C

问题 #2

How do endpoints inside an SD-Access network reach resources outside the fabric?

A. a VRF fusion router is used to map resources in one VN to another VN

B. Fabric borders use VRFs to map VNs to VRFs

C. SD-Access transit links are used to transport encapsulated traffic from one fabric to another

D. A fabric edge is used to de-encapsulate VXLAN traffic to normal IP traffic then transported over the outside network

正确答案：C

问题 #3

A branch office has a primary L3VPN MPLS connection back to the main office and an IPSEC VPN tunnel that serves as backup. Which design ensures that data is sent over the backup connection only if the primary MPLS circuit is down?

A. Use EIGRP to establish a neighbor relationship with the main office via L3VPN MPLS and the IPSECVPN tunnel.

B. Use BGP with the multipath feature enabled to force traffic via the primary path when available.

C. Use static routes tied to an IP SLA to prefer the primary path while a floating static route points to the backup connection.

D. Use OSPF with a passive-interface command on the backup connection.

正确答案：C

问题 #4

Which two routing protocols allow for unequal cost load balancing? (Choose two.)

A. EIGRP

B. IS-IS

C. BGP

D. OSPF

E. RIPng

正确答案：AC

问题 #5

Which two steps can be taken to improve convergence in an OSPF network? (Choose two.)

A. Use Bidirectional Forwarding Detection

B. Merge all the areas into one backbone area

C. Tune OSPF parameters

D. Make all non-backbone areas stub areas

E. Span the same IP network across multiple areas.

正确答案：CD

问题 #6

A customer is discussing QoS requirements with a network consultant. The customer has specified that endto- end path verification is a requirement. Which QoS solution meets this requirement?

A. IntServ model with RSVP to support the traffic flows

B. DiffServ model with PHB to support the traffic flows

C. marking traffic at the access layer with DSCP to support the traffic flows

D. marking traffic at the access layer with CoS to support the traffic flows

正确答案：C

问题 #7

An organization is designing a detailed QoS plan that limits bandwidth to specific rates. Which two parameters are supported be the traffic policing feature? (Choose two.)

A. violating

B. marking

C. shaping

D. bursting

E. conforming

正确答案：D

问题 #8

Which design consideration must be made when using IPv6 overlay tunnels?

A. Overlay tunnels that connect isolated IPv6 networks can be considered a final IPv6 network architecture.

B. Overlay tunnels should only be considered as a transition technique toward a permanent solution.

C. Overlay tunnels can be configured only between border devices and require only the IPv6 protocol stack.

D. Overlay tunneling encapsulates IPv4 packets in IPv6 packets for delivery across an IPv6 infrastructure.

正确答案：C

问题 #9

An engineer must propose a QoS architecture model that allows an application to inform the network of its traffic profile and to request a particular type of service to support its bandwidth and delay requirements. The application requires consistent and dedicated bandwidth end to end. Which QoS architecture model meets these requirements?

A. DiffServ

B. LLQ

C. WRED

D. IntServ

正确答案：D

问题 #10

Which QoS feature responds to network congestion by dropping lower priority packets?

A. CBWFQ

B. tail drop

C. WRED

D. strict priority

正确答案：C

问题 #11

A network solution is being designed for a company that connects to multiple Internet service providers. Which Cisco proprietary BGP path attribute will influence outbound traffic flow?

A. Local Preference

B. MED

C. Weight

D. AS Path

E. Community

正确答案：A

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