Nokia 4A0-D01 Dumps Questions Answers

Comprehensive and Detailed Explanation with Exact Extracts:

Option B (CPM-filter ACL) is CORRECT:

The CPM-filter ACL is explicitly designed to match control-plane traffic and copy it to the CPM (Control/Management Plane). It is instantiated in hardware on all line cards.

Extract from Nokia SR Linux Security Guide (Section: Control Plane Protection):

"The cpm-filter ACL is instantiated on every line card to identify packets destined for the CPM (e.g., routing protocols, ICMP). Matched packets are copied to the CPM while data-plane traffic is forwarded normally."

Other Options are INCORRECT:

A: Capture-filter ACL is for packet mirroring (e.g., SPAN), not CPM copying.

C/D: Ingress/Egress ACLs filter user traffic and are not specific to CPM-bound packets.

Extract from Nokia SR Linux ACL Configuration Guide:

"Only cpm-filter ACLs are globally applied across line cards for CPM protection. Interface ACLs (ingress/egress) operate locally and do not copy packets to the CPM."

Comprehensive and Detailed Explanation From Exact Extract:

The SR Linux Application Manager (app_mgr):

Option A is TRUE: Monitors application health and restarts failed processes.

"The Application Manager monitors the status of all running applications and triggers recovery actions if failures occur."

— SR Linux System Management Guide, "Application Manager"

Option B is TRUE: Manages both Nokia-provided and user-added containerized applications.

"app_mgr manages the lifecycle of all applications, whether preinstalled by Nokia or custom-developed by users."

— SR Linux DevOps Guide, "Custom Application Deployment"

Option C is TRUE: Parses application manifests and launches applications.

"The Application Manager reads manifest files (including configuration) and starts applications accordingly."

— SR Linux Configuration Fundamentals, "Application Initialization"

Option D is FALSE: Translation of YANG to protobuf is handled by the Management Server (mgmt_server), not app_mgr.

"The Management Server (mgmt_server) compiles YANG models into protobuf schemas for the Interface Database (IDB). The Application Manager does not handle model translation."

— SR Linux Architecture White Paper, "Data Modeling Components"

Comprehensive and Detailed Explanation:

Nokia’s Fabric Services System (FSS) employs an intent-driven approach where the fabric intent is defined in a YAML file. This file specifies the desired state of the data center fabric, including topology, services, and policies. FSS translates this declarative intent into device-specific configurations.

Exact Extract:

"Fabric Services System uses intent-based YAML templates to define the fabric’s target state. The system automates configuration generation and deployment, ensuring consistency across the fabric."