Refer to the exhibit. Cisco DNA Center has obtained the username of the client and the multiple devices that the client is using on the network. How is Cisco DNA Center getting these context details?

Question

Exhibits

Options

• AThe administrator had to assign the username to the IP address manually in the user database
• BThose details are provided to Cisco DNA Center by the Identity Services Engine
• CCisco DNA Center pulled those details directly from the edge node where the user connected.
• DUser entered those details in the Assurance app available on iOS and Android devices

• B
  94% (45)
• C
  4% (2)
• D
  2% (1)

Explanation

Explanation

Cisco DNA Center integrates with Cisco Identity Services Engine (ISE) to obtain rich contextual information about users and devices. ISE acts as the central policy and identity platform, performing authentication and authorization (via 802.1X, MAB, or web authentication), and then shares this context - including usernames, device types, and IP-to-user mappings - with DNA Center through the pxGrid protocol.

Why the distractors are wrong:

• A is incorrect because manually assigning usernames to IP addresses would be impractical at scale and is not how DNA Center dynamically obtains this information.
• C is incorrect because while DNA Center communicates with network devices, individual edge nodes do not independently provide user identity context - that is ISE's role.
• D is incorrect because there is no such end-user-facing "Assurance app" for iOS/Android; Assurance is an administrator-facing feature within DNA Center itself.

Memory Tip

Think of ISE as the "identity broker" - whenever DNA Center needs to know who is on the network, it asks ISE. Remember the phrase: "DNA Center sees the network; ISE knows the user." This integration via pxGrid is a core concept in Cisco's Software-Defined Access (SDA) architecture.

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