Nokia 4A0-D01 Dumps Questions Answers

Comprehensive and Detailed Explanation From Exact Extract:

Option A is TRUE: SR Linux is fully model-driven.

"Every configuration and state element in SR Linux is defined by a YANG model."

— SR Linux YANG Data Modeling Guide, "Introduction"

Option B is FALSE: Containers are branches (grouping nodes), and leafs are data components (terminal values). The description is reversed.

"YANG structures data hierarchically: containers organize child nodes (branches), while leafs hold actual data values (e.g., integers, strings)."

— SR Linux YANG Data Modeling Guide, "Tree Structure"

Option C is TRUE: YANG supports JSON/XML encoding.

"YANG models serialize natively to XML or JSON for machine-to-machine communication."

— SR Linux gNMI and JSON-RPC Guide, "Data Encoding"

Option D is TRUE: YANG enables standardized access via gNMI/NETCONF.

"YANG provides a consistent schema for applications to retrieve/configurate data via protocols like gNMI."

— SR Linux Automation Guide, "Model-Driven Interfaces"

Comprehensive and Detailed Explanation with Exact Extracts:

Options A, B, and C are part of ZTP autoboot:

A: DHCP assigns IP/gateway.

B/C: Scripts download images/RPMs from servers (HTTP/FTP).

Extract from Nokia SR Linux ZTP Guide:

"Autoboot triggers DHCP discovery for IP/gateway. The device then fetches a provisioning script (via DHCP/DNS) that downloads RPMs/images from HTTP/FTP servers."

Option D is NOT part of ZTP autoboot:

Fabric Services System (FSS) and its digital sandbox are separate tools for lifecycle management. ZTP does not auto-deploy them.

Extract from Nokia FSS Deployment Guide:

"FSS deployment requires manual setup or orchestration tools. The digital sandbox is not automatically deployed via ZTP autoboot."

Comprehensive and Detailed Explanation with Exact Extracts:

Exhibit Analysis:

The output shows real-time ICMP packet captures (echo requests/replies) with detailed metadata (interface, source/destination IP, protocol, size, TTL).

The command tools system traffic-monitor protocol icmp confirms this is a tcpdump-like utility (packet capture tool), not a log file.

Mechanism for Packet Capture:

Capture-filter ACL is required to copy data-plane packets (like ICMP between hosts) to the CPM for analysis by traffic-monitor.

Extract from Nokia SR Linux Troubleshooting Guide:

"traffic-monitor is a CPM-based packet capture tool. To capture data-plane traffic (e.g., host-to-host ICMP), a capture-filter ACL must be applied to interfaces to copy packets to the CPM."

Extract from Nokia SR Linux ACL Configuration Guide:

"Unlike cpm-filter (for control-plane protection), capture-filter ACLs are designed to mirror user traffic to the CPM for debugging via traffic-monitor."

Why Other Options Are False:

A: Generic "ACL filter" is ambiguous. Only capture-filter ACLs copy data-plane traffic to the CPM for traffic-monitor.

C: cpm-filter policer rate-limits control-plane traffic (e.g., ICMP to the router), not host-to-host ICMP. It does not enable packet capture.

D: cpm-filter handles control-plane traffic destined for the router (e.g., ICMP to router IPs), not transit traffic. It does not support traffic-monitor.