Nokia 4A0-D01 Exam Questions Instant Access

Question 1

Which of the following is NOT one of the characteristics of Nokia's SR Linux?

AIt uses an unmodified Linux kernel that simplifies the use of third party applications.

BIt uses a modular, state-driven architecture that gives applications efficient access to system information.

CIt includes a NetOgs development kit that supports the integration of third-party applications.

DIt uses mature and stable SNMP protocol to access the command line interface.

Answer : D

Nokia's SR Linux does not rely on the SNMP protocol for accessing the command line interface; instead, it uses modern, programmable interfaces aligned with its modular architecture.

Question 2

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

AHierarchical policing of control plane traffic is supported.

BThe system-cpu-policer is hardware-based.

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

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

Answer : B

The system-cpu-policer in Nokia SR Linux is software-based, not hardware-based. It acts on aggregate control plane traffic and supports hierarchical policing with CPM-filter entries using both distributed and system-cpu-policers.

Question 3

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 4

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 5

Which of the following statements about the YANG model used in Nokia's SR Linux is FALSE?

AAll configuration and state information is defined as a YANG model.

BThe YANG model uses a tree structure with ''leafs'' as the branches and ''containers'' as the data components.

CThe YANG model can be converted into other formats such as JSON or XML.

DThe YANG model provides a standardized way for applications to retrieve SR Linux configuration and state information.

Answer : B

In YANG models, 'leafs' are the data nodes (not branches), and 'containers' group related data nodes. The statement incorrectly reverses their roles by calling leafs branches and containers data components.

Question 6

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.

Question 7

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

ALinux facility + priority

BConsole

CSR Linux subsystem + priority

DSyslog filter

Answer : D

'Syslog filter' is not a logging source; it is a mechanism used to filter log messages. Valid logging sources in SR Linux include Linux facility + priority, console, and SR Linux subsystem + priority.

Nokia Data Center Fabric Fundamentals 4A0-D01 Exam Questions