Nokia 4A0-D01 Exam Questions Instant Access

Question 1

Based on the exhibit output, which of the following statements is TRUE?

AAn ACL filter is configured to accept ICMP packets, which are then processed by the tcpdump-like utility.

Bcapture-filter is configured to copy ICMP packets to the CPM where they are processed by the tcpdump-like utility.

CA cpm-filter policer is configured to rate limit ICMP packets, which are then captured in a log file.

DA cpm-filter is configured to accept ICMP packets, which are then captured in a log file.

Answer : B

The exhibit shows ICMP packets being captured and displayed by a tcpdump-like utility, which indicates that a capture-filter is configured to copy ICMP packets to the Control Plane Manager (CPM) where they are processed and monitored.

Question 2

When autoboot flag is set in grub.cfg, which of the following is NOT performed as part of the Zero Touch Provisioning (ZTP) autoboot process?

AUses the DHCP server to provide the IP address and default gateway

BUses the Web or FTP server to provide the RPM packages and any necessary images

CDownloads and executes provisioning scripts

DUses Nokia's Fabric Services System to deploy the digital sandbox automatically

Answer : D

The ZTP autoboot process does not automatically use Nokia's Fabric Services System to deploy the digital sandbox; it focuses on network boot, DHCP IP assignment, and downloading/executing provisioning scripts from web or FTP servers.

Question 3

Which of the following statements about resilient ECMP load balancing is TRUE?

AThe hash value used to distribute traffic is calculated as a modulo function on specific fields of the packet header.

BHash buckets are used to ensure that flows egressing the same interface on one router use different egress interfaces on downstream routers.

CA different hash seed is used on downstream routers to ensure that flows are randomly distributed across all eligible router interfaces.

DWhen one of the next-hops fail, only flows currently egressing to that next-hop are impacted.

Answer : D

In resilient ECMP load balancing, when a next-hop fails, only the flows that were using that specific next-hop are affected and need to be redistributed, minimizing disruption to other flows.

Question 4

Which of the following statements about a MAC-VRF is FALSE?

AA MAC-VRF is a Layer 2 network instance.

BBridge table entries contain an exit interface for each destination address.

CPackets received in a MAC-VRF are forwarded based on destination IP address.

DMultiple devices can be connected to the same IP subnet using a MAC-VRF.

Answer : C

In a MAC-VRF, packets are forwarded based on Layer 2 information such as destination MAC addresses, not on destination IP addresses.

Question 5

Which of the following statements about Nokia's Fabric Services System is FALSE?

AData center fabric configuration is represented as the fabric intent in a declarative YAML format.

BDigital sandbox provides notification of performance issues in the data center fabric.

CTelemetry data is provided in a context that is relevant to the fabric intent.

DCloud-native design enables easy integration with the customer's environment.

Answer : B

The Digital Sandbox in Nokia's Fabric Services System is primarily used for simulation and validation of fabric intent, not for providing notifications of performance issues.

Question 6

Which of the following statements about the MAC table shown in the exhibit output is FALSE?

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

BThe 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.

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

Answer : A

The MAC address 00:25:BA:00:00:10 is listed as 'duplicate,' but it appears only once associated with interface ethernet-1/10. Therefore, it is not learned on more than one interface.

Question 7

Which of the following statements about the CLI modes in Nokia's SR Linux is FALSE?

AThe state mode displays the current configuration and operational information.

BThe show mode uses pre-defined reports to display operational information.

CThe running mode is used to make configuration changes.

DUsers can switch from one mode to another using the enter command.

Answer : D

In Nokia SR Linux, users switch between CLI modes using specific commands like configure or exit, not an enter command. The enter command is not used for mode switching.

Nokia Data Center Fabric Fundamentals 4A0-D01 Exam Questions