A customer has 20 stores located throughout a city. Each store has a single Cisco AP managed by a central WLC. The customer wants to gather analytics for users in each store. Which technique supports these requirements?

• A.angle of arrival
• B.presence
• C.hyperlocation
• D.trilateration

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Which data modeling language is commonly used by NETCONF?

• A.REST
• B.YANG
• C.HTML
• D.XML

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Which exhibit displays a valid JSON file?

• A.
• B.
• C.
• D.

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A GRE tunnel is down with the error message %TUN-5-RECUR DOWN:

Which two options describe possible causes of the error? (Choose two)

• A.There is link flapping on the tunnel
• B.Incorrect destination IP addresses are configured on the tunnel
• C.The tunnel mode and tunnel IP address are misconfigured
• D.There is instability in the network due to route flapping
• E.The tunnel destination is being routed out of the tunnel interface

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Which technology is used to provide Layer 2 and Layer 3 logical networks in the Cisco SD-Access architecture?

• A.underlay network
• B.VPN routing/forwarding
• C.easy virtual network
• D.overlay network

Correct Answer: D

Explanation

An overlay network creates a logical topology used to virtually connect devices that are built over an arbitrary physical underlay topology.
An overlay network is created on top of the underlay network through virtualization (virtual networks). The data plane traffic and control plane signaling are contained within each virtualized network, maintaining isolation among the networks and an independence from the underlay network.
SD-Access allows for the extension of Layer 2 and Layer 3 connectivity across the overlay through the services provided by through LISP.
Reference: https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html

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