Nokia Data Center Fabric Fundamentals Exam Version: Demo [ Total Questions: 10] Web: www.certsout.com Email: support@certsout.com Nokia 4A0-D01 IMPORTANT NOTICE Feedback We have developed quality product and state-of-art service to ensure our customers interest. If you have any suggestions, please feel free to contact us at feedback@certsout.com Support If you have any questions about our product, please provide the following items: exam code screenshot of the question login id/email please contact us at and our technical experts will provide support within 24 hours. support@certsout.com Copyright The product of each order has its own encryption code, so you should use it independently. Any unauthorized changes will inflict legal punishment. We reserve the right of final explanation for this statement. Nokia - 4A0-D01 Certs Exam 1 of 11 Pass with Valid Exam Questions Pool A. B. C. D. Question #:1 Which of the following statements about Nokia’s Fabric Services System is FALSE? Data center fabric configuration is represented as the fabric intent in a declarative YAML format. Digital sandbox provides notification of performance issues in the data center fabric. Telemetry data is provided in a context that is relevant to the fabric intent. Cloud-native design enables easy integration with the customer's environment. Answer: B Explanation Comprehensive and Detailed Explanation From Exact Extract: Option A : – Fabric intent is declaratively defined in YAML. TRUE "FSS uses YAML-based declarative intent to define and manage fabric configurations." — Nokia Fabric Services System User Guide, "Intent-Based Fabric" Option B : – The is for , not performance FALSE Digital Sandbox pre-deployment validation monitoring. "The Digital Sandbox simulates configurations for validation before deployment. Performance monitoring is handled by telemetry analytics, not the sandbox." — Nokia FSS Deployment Guide, "Digital Sandbox" Option C : – Telemetry is contextualized with intent. TRUE "Telemetry data is correlated with fabric intent, providing context-aware insights." — Nokia FSS Operations Guide, "Telemetry and Analytics" Option D : – FSS is cloud-native for flexible integration. TRUE "FSS’s cloud-native microservices architecture simplifies integration with customer ecosystems." — Nokia FSS Architecture White Paper, "Cloud-Native Design" Conclusion: Option B misrepresents the Digital Sandbox’s purpose. References: Nokia, , "Intent-Based Fabric". Fabric Services System User Guide Nokia - 4A0-D01 Certs Exam 2 of 11 Pass with Valid Exam Questions Pool A. B. C. D. Nokia, , "Digital Sandbox". FSS Deployment Guide Nokia, , "Telemetry and Analytics". FSS Operations Guide Nokia, , "Cloud-Native Design". FSS Architecture White Paper Question #:2 Which of the following is NOT one of the reasons why BGP is used as the routing protocol in the data center? It is more efficient than link-state protocols like IS-IS and OSPF. BGP neighbors automatically discover each other. It is a well understood and mature routing protocol. It supports both IPv4 and IPv6. Answer: B Explanation Comprehensive and Detailed Explanation From Exact Extract: BGP is widely adopted in data center fabrics due to its scalability, multiprotocol support, and maturity. However, because BGP does automatically discover neighbors. Unlike link-state option B is incorrect not protocols (e.g., OSPF, IS-IS), which use multicast for neighbor discovery, BGP requires manual of peers via IP addresses. This is explicitly stated in Nokia's documentation: configuration "BGP of neighbors. It does not support automatic neighbor discovery via requires explicit configuration multicast/broadcast mechanisms." — Nokia SR Linux Configuration Guide, Section: "BGP in Data Center Underlays" Validation of Other Options: A: Correct. BGP scales more efficiently in large data centers than link-state protocols. Per Nokia: "BGP’s path-vector design reduces control-plane overhead compared to link-state protocols, making it ." optimal for large-scale data center underlays — Nokia Data Center Fabric Design Guide C: Correct. BGP’s maturity is a key advantage: "BGP’s decades of deployment and extensive vendor interoperability make it a for fabric reliable choice underlays." — SR Linux EVPN Services Guide Nokia - 4A0-D01 Certs Exam 3 of 11 Pass with Valid Exam Questions Pool A. B. C. D. D: Correct. BGP natively supports multi-protocol extensions (MP-BGP) for IPv4/IPv6: "MP-BGP enables via the same BGP session." simultaneous transport of IPv4 and IPv6 routes — SR Linux Routing Protocols Handbook Conclusion: Option B is the only choice that misrepresents BGP functionality, as neighbor auto-discovery is not a feature of BGP. This distinction is critical in Nokia SR Linux fabric deployments. References: Nokia, , "BGP in Data Center Underlays". SR Linux Configuration Guide Nokia, , "Routing Protocol Selection". Data Center Fabric Design Guide Nokia, , "BGP-EVPN Fundamentals". SR Linux EVPN Services Guide Nokia, , "MP-BGP Implementation". SR Linux Routing Protocols Handbook Question #:3 Based on the exhibit output, which of the following statements is TRUE? An ACL filter is configured to accept ICMP packets, which are then processed by the tcpdump-like utility. capture-filter is configured to copy ICMP packets to the CPM where they are processed by the tcpdump- like utility. A cpm-filter policer is configured to rate limit ICMP packets, which are then captured in a log file. A cpm-filter is configured to accept ICMP packets, which are then captured in a log file. Answer: B Explanation Comprehensive and Detailed Explanation with Exact Extracts: Nokia - 4A0-D01 Certs Exam 4 of 11 Pass with Valid Exam Questions Pool A. B. C. 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 . To capture data-plane traffic (e.g., host-to-host CPM-based packet capture tool ICMP), a must be applied to interfaces to ." capture-filter ACL 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 to mirror user traffic 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 the router), not host-to-host to ICMP. It does not enable packet capture. D : cpm-filter handles control-plane traffic destined the router (e.g., ICMP to router IPs), not for transit traffic. It does not support traffic-monitor. References: Nokia SR Linux Troubleshooting Guide: Section "Packet Capture (traffic-monitor)". Nokia SR Linux ACL Configuration Guide: Sections "Capture-filter ACLs", "CPM-filter ACLs". Question #:4 How does Nokia’s Fabric Services System use a fabric intent to build the DC switch fabric? It uses a YAML file that defines the intended configuration state of the DC fabric. It uses a digital sandbox to connect workloads to the DC fabric. It uses a digital sandbox to build the configuration files for the DC fabric. Nokia - 4A0-D01 Certs Exam 5 of 11 Pass with Valid Exam Questions Pool D. A. B. C. D. It uses telemetry data to build the configuration files for the DC fabric. Answer: A Explanation Comprehensive and Detailed Explanation: Nokia’s Fabric Services System (FSS) employs an where the fabric intent is defined intent-driven approach in a . This file specifies the of the data center fabric, including topology, services, YAML file desired state 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." : Nokia Fabric Services System Architecture Guide (Section "Intent-Driven Fabric Automation"). Why other options are incorrect : B/C : The "digital sandbox" is used for of workloads, not building configurations. simulation/testing D : Telemetry data is for , not initial configuration generation. monitoring/validation Question #:5 Which of the following is NOT one of the user types supported in Nokia SR Linux? SR Linux users Regular Linux OS users Container users Remote users Answer: C Explanation Comprehensive and Detailed Explanation with Exact Extracts: Options A, B, and D are supported: SR Linux users (A): Locally configured users for CLI/management access. Regular Linux OS users (B): Native Linux users (e.g., admin) for host OS operations. Nokia - 4A0-D01 Certs Exam 6 of 11 Pass with Valid Exam Questions Pool A. B. C. D. Remote users (D): Authenticated via AAA (TACACS+/RADIUS). Extract from Nokia SR Linux System Management Guide: "User types include (CLI access), (host system), and (external SR Linux users Linux OS users remote users AAA)." Option C (Container users) is NOT supported: SR Linux does not define "container users" as a distinct category. Containers (e.g., management container) share the host's user management. Extract from Nokia SR Linux Security Guide: "SR Linux does not provision separate user identities for containers. User access is managed at the host OS or via SR Linux CLI, with no container-specific user type." level References: Nokia SR Linux System Management Guide: Section "User Management". Nokia SR Linux Security Guide: Section "User Authentication". Question #:6 Which of the following statements about configuration checkpoints in Nokia SR Linux is FALSE? Checkpoint 0 is always the oldest checkpoint. The current running configuration can be saved as a JSON-formatted checkpoint file. The operator can revert to any existing checkpoint. The operator can generate a new checkpoint when committing configuration changes. Answer: A Explanation Comprehensive and Detailed Explanation From Exact Extract: Option A : – , not the oldest. FALSE Checkpoint 0 is the latest (most recent) "Checkpoints are numbered sequentially, with 0 representing the checkpoint. Higher numbers most recent indicate older checkpoints." — SR Linux Configuration Management Guide, "Checkpoint Numbering" Option B : – Checkpoints are stored as JSON files. TRUE Nokia - 4A0-D01 Certs Exam 7 of 11 Pass with Valid Exam Questions Pool A. B. C. D. "Checkpoints capture the running configuration in JSON format for easy parsing and restoration." — SR Linux CLI User Guide, "Checkpoint Operations" Option C : – Reversion to any checkpoint is supported. TRUE "Operators can revert to any saved checkpoint, restoring the system to that specific state." — SR Linux Configuration Management Guide, "Checkpoint Revert" Option D : – Checkpoints can be auto-generated on commit. TRUE "The system can be configured to create a new checkpoint automatically upon successful commit." — SR Linux CLI User Guide, "Commit Options" Conclusion: Option A is false because checkpoint 0 is the newest. References: Nokia, , "Checkpoint Numbering". SR Linux Configuration Management Guide Nokia, , "Checkpoint Operations". SR Linux CLI User Guide Nokia, , "Checkpoint Revert". SR Linux Configuration Management Guide Nokia, , "Commit Options". SR Linux CLI User Guide Question #:7 Which of the following statements about Zero Touch Provisioning (ZTP) is FALSE? The ZTP process downloads a provisioning script defined in the TLS profile. The ZTP process is managed by the ZTP application in Nokia SR Linux. The ZTP process relies on a DHCP server for an IP address. ZTP allows a router to become operational in the network without any pre-provisioning. Answer: A Explanation Comprehensive and Detailed Explanation with Exact Extracts: Option A is FALSE: The provisioning script URL is defined in the TLS profile. It is provided via not DHCP (option 239) or DNS. Nokia - 4A0-D01 Certs Exam 8 of 11 Pass with Valid Exam Questions Pool A. B. C. D. Extract from Nokia SR Linux ZTP Guide: "The supplies the URL to the provisioning script (via option 239). TLS profiles secure script DHCP server /image downloads but ." do not define the script location Options B, C, and D are TRUE: B: ZTP is managed by the ztp application in the management container. C: DHCP provides initial IP/gateway. D: ZTP requires no manual configuration. Extract from Nokia SR Linux Installation Guide: "The automates deployment. It uses for network parameters and fetches scripts to ZTP application DHCP make the device operational ." without pre-configuration References: Nokia SR Linux ZTP Guide. Nokia SR Linux Installation Guide: Section "Zero Touch Provisioning". Question #:8 Which of the following statements about the YANG model used in Nokia’s SR Linux is FALSE? All configuration and state information is defined as a YANG model. The YANG model uses a tree structure with “leafs” as the branches and “containers” as the data components. The YANG model can be converted into other formats such as JSON or XML. The YANG model provides a standardized way for applications to retrieve SR Linux configuration and state information. Answer: B Explanation 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" Nokia - 4A0-D01 Certs Exam 9 of 11 Pass with Valid Exam Questions Pool A. B. C. D. Option B is FALSE : Containers are branches (grouping nodes), and leafs are data components . The description is reversed. (terminal values) "YANG structures data hierarchically: organize child nodes (branches), while hold actual containers leafs 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" References: Nokia, , "Introduction". SR Linux YANG Data Modeling Guide Nokia, , "Tree Structure". SR Linux YANG Data Modeling Guide Nokia, , "Data Encoding". SR Linux gNMI and JSON-RPC Guide Nokia, , "Model-Driven Interfaces". SR Linux Automation Guide components. Question #:9 Which of the following statements about multi-homing in EVPN is FALSE? Type 1 Ethernet Auto-Discovery (A-D) EVPN route is used to support EVPN multi-homing. Type 4 Ethernet Segment (ES) EVPN route is used for designated forwarder (DF) election for an ES. The ES identifier (ESI) uniquely identifies an ES and it is locally significant for a particular leaf. The Ethernet Segment (ES) identifies a set of links that connects a host to one or more leafs. Answer: C Explanation Comprehensive and Detailed Explanation with Exact Extracts: Nokia - 4A0-D01 Certs Exam 10 of 11 Pass with Valid Exam Questions Pool A. B. C. D. Option A (TRUE): Type 1 routes enable multi-homing functions. Extract from Nokia EVPN Multi-Homing Guide: " signal reachability for an Ethernet Segment (ES) and enable fast convergence Type 1 Ethernet A-D routes /aliasing in multi-homing." Option B (TRUE): Type 4 routes facilitate DF election. Extract from Nokia EVPN Fundamentals Guide: " advertise ESI and VTEP IP to peers for Type 4 Ethernet Segment routes Designated Forwarder (DF) , which prevents BUM traffic loops." election Option C (FALSE): The ESI is , not locally significant. globally unique Extract from Nokia SR Linux Configuration Guide (Section: EVPN ESI): "The ESI and consistently configured on attached to the same multi- must be unique network-wide all leafs homed device. It is ." not locally significant Option D (TRUE): An ES defines the host connectivity model. Extract from Nokia EVPN Multi-Homing Guide: "An is a set of links connecting a (e.g., server) to for Ethernet Segment (ES) single host one or more leafs redundancy/load balancing." References: Nokia EVPN Multi-Homing Guide. Nokia EVPN Fundamentals Guide. Nokia SR Linux Configuration Guide: Section "EVPN ESI". Question #:10 Which of the following is NOT a function of Nokia’s SR Linux application manager? It monitors the health of all applications. It manages the SR Linux and customer-defined applications. It reads the application’s configuration information and starts each application. It translates the application’s YANG model into protobufs for the IDB. Answer: D Nokia - 4A0-D01 Certs Exam 11 of 11 Pass with Valid Exam Questions Pool Explanation 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" References: Nokia, , "Application Manager". SR Linux System Management Guide Nokia, , "Custom Application Deployment". SR Linux DevOps Guide Nokia, , "Application Initialization". SR Linux Configuration Fundamentals Nokia, , "Data Modeling Components". SR Linux Architecture White Paper About certsout.com certsout.com was founded in 2007. We provide latest & high quality IT / Business Certification Training Exam Questions, Study Guides, Practice Tests. We help you pass any IT / Business Certification Exams with 100% Pass Guaranteed or Full Refund. Especially Cisco, CompTIA, Citrix, EMC, HP, Oracle, VMware, Juniper, Check Point, LPI, Nortel, EXIN and so on. View list of all certification exams: All vendors We prepare state-of-the art practice tests for certification exams. You can reach us at any of the email addresses listed below. Sales: sales@certsout.com Feedback: feedback@certsout.com Support: support@certsout.com Any problems about IT certification or our products, You can write us back and we will get back to you within 24 hours.