• 4.9/5.0
  • 65 Questions
  • Updated on: 14-Apr-2026
  • Data Center Associate (JNCIA-DC)
  • 165+ Prepared
  • Valid Worldwide

Free JN0-281 Practice Test Questions | Know You're Ready for Data Center Associate (JNCIA-DC)


Which BGP attribute is used to prevent routing loops in a network?

A. MED

B. LOCAL_PREF

C. NEXT_HOP

D. AS_PATH

D.   AS_PATH

What are two names used to refer to the Layer 2 table that maintains known switching information? Choose two.

A. inet.0 table

B. routing information base RIB

C. Ethernet switching table

D. forwarding information base FIB

C.   Ethernet switching table
D.   forwarding information base FIB

Which feature should be used with a static route that has a secondary next hop with a unique route preference value? Choose one.

A. retain

B. resolve

C. qualified next hop

D. install

C.   qualified next hop

Which statement is correct about building an IP fabric?

A. Each spine device should have a direct physical connection to every other spine device.

B. Each spine device should have a direct physical connection to every leaf device.

C. Each spine device must have two or more physical connections to each leaf device.

D. Each spine device must have two or more physical connections to every other spine device.

B.   Each spine device should have a direct physical connection to every leaf device.

A switch receives an Ethernet frame that contains source and destination MAC addresses that are not in the Ethernet switching table. In this scenario, which two actions does the switch perform? Choose two.

A. The switch floods the frame out every port in the broadcast domain except the ingress port.

B. The switch adds the source MAC address to the Ethernet switching table.

C. The switch drops the frame.

D. The switch forwards the frame to the Routing Engine.

A.   The switch floods the frame out every port in the broadcast domain except the ingress port.
B.   The switch adds the source MAC address to the Ethernet switching table.

You are asked to ensure that traffic and routing information is not interrupted if your primary Routing Engine fails or switches to the backup Routing Engine. In this scenario, which high availability feature will accomplish this behavior?

A. nonstop active routing NSR

B. graceful Routing Engine switchover GRES

C. link aggregation control protocol LACP

D. bidirectional forwarding detection BFD

A.   nonstop active routing NSR

Referring to the exhibit, which type of protocol session will be established?

A. OSPF

B. IS-IS

C. EBGP

D. IBGP

D.   IBGP

In a three-stage IP fabric, what is the sequence of fabric node stages that a packet passes through?

A. leaf to spine to spine to leaf

B. spine to leaf to spine

C. leaf to spine to leaf

D. superspine to spine to leaf

A.   leaf to spine to spine to leaf

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