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Total 10 questions
Exam Code: 4A0-D01                Update: Oct 16, 2025
Exam Name: Nokia Data Center Fabric Fundamentals Exam

Nokia Nokia Data Center Fabric Fundamentals Exam 4A0-D01 Exam Dumps: Updated Questions & Answers (October 2025)

Question # 1

A static route is configured in two steps in Nokia’s SR Linux. Which of the following items CANNOT be configured in the static-routes container?

A.

blackhole

B.

IPv4 destination prefix

C.

Preference value

D.

Next-hop group

Question # 2

Based on the MAC table output:

Which statement is FALSE?

A.

The MAC address 00:25:BA:00:00:10 is learnt on more than one interface.

B.

The MAC re-learning rate has exceeded the threshold within the specified time frame.

C.

Interface ethernet-1/10 is configured with the MAC address 00:25:BA:00:00:10.

D.

Mac-duplication detection is enabled in mac-vrf-1.

Question # 3

Which of the following is NOT how prefixes are typically learned and advertised in a leaf and spine data center?

A.

Spine routers advertise learned prefixes to leaf routers directly using eBGP.

B.

Spine routers learn prefixes from leaf routers directly using eBGP.

C.

Each leaf router advertises the prefixes of its own locally connected servers.

D.

Each leaf router learns the prefixes of remote servers from other leaf routers directly using eBGP.

Question # 4

Which of the following statements about the VXLAN tunneling in data centers is FALSE?

A.

VXLAN tunnel endpoints can be on hypervisors, leaf routers, or datacenter gateways.

B.

EVPN routes are exchanged between VXLAN tunnel endpoints.

C.

Each VXLAN tunnel endpoint is automatically assigned with a unique VNI value.

D.

VXLAN tunneling is used to provide Layer 2 connectivity between workloads over a common underlay network.

Question # 5

Based on the exhibit output, which of the following is NOT the reason the user runs the “baseline diff” command?

A.

User admin is not able to commit their changes.

B.

Another user has committed changes.

C.

User admin wants to check if there are differences between the current running config and their baseline datastore.

D.

User admin notices that “!” appears in the CLI prompt.

Question # 6

Which of the following is NOT a valid logging source used in Nokia’s SR Linux?

A.

Linux facility + priority

B.

Console

C.

SR Linux subsystem + priority

D.

Syslog filter

Question # 7

Which of the following statements about Zero Touch Provisioning (ZTP) is FALSE?

A.

The ZTP process downloads a provisioning script defined in the TLS profile.

B.

The ZTP process is managed by the ZTP application in Nokia SR Linux.

C.

The ZTP process relies on a DHCP server for an IP address.

D.

ZTP allows a router to become operational in the network without any pre-provisioning.

Question # 8

Which of the following statements about the data center’s leaf-spine topology (clos network) is FALSE?

A.

Each leaf router is connected to all the spine routers in the cluster.

B.

It provides a consistent path for east-west traffic.

C.

It uses the spanning tree protocol to avoid forwarding loops.

D.

It uses ECMP to distribute traffic across duplicate links.

Question # 9

Which of the following statements about a CPM-filter policer is FALSE?

A.

Hierarchical policing of control plane traffic is supported.

B.

The system-cpu-policer is hardware-based.

C.

The system-cpu-policer acts on the aggregate traffic from all line cards.

D.

CPM-filter entries can use both a distributed-policer and a system-cpu-policer.

Question # 10

Which of the following is NOT one of the reasons why BGP is used as the routing protocol in the data center?

A.

It is more efficient than link-state protocols like IS-IS and OSPF.

B.

BGP neighbors automatically discover each other.

C.

It is a well understood and mature routing protocol.

D.

It supports both IPv4 and IPv6.

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Total 10 questions

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TESTED 16 Oct 2025