最新4A0-D01テスト材料には有効な4A0-D01テストエンジン [Q22-Q44]

最新4A0-D01テスト材料には有効な4A0-D01テストエンジン

4A0-D01更新された試験問題集で[2026年最新] 練習には有効な試験問題集

Nokia 4A0-D01 認定試験の出題範囲：

トピック	出題範囲
トピック 1	Nokia DC Fabric Solution: This section of the exam measures skills of a Data Center Network Engineer and covers the architecture and benefits of modern Layer 3 data center networks. It includes an overview of BGP-based routing, VXLAN and EVPN overlays for multi-tenant environments, and key features of the SR Linux operating system. The section also explains how APIs are used for external configuration and introduces the Fabric Services System's management capabilities.
トピック 2	SR Linux Logging, Monitoring, and Filtering: This section of the exam measures skills of a Data Center Network Engineer and addresses how to implement logging, monitoring, and traffic filtering in SR Linux. It explains log file usage, ACL types, CPM filtering, and packet capture filters. Configuration tasks involve applying ACLs and monitoring network activity using capture tools.
トピック 3	This section of the exam measures skills of a Network Automation Specialist and introduces the principles of Event Driven Automation in SR Linux environments. It covers integration with Kubernetes and explores core use cases such as intent-based automation for fabrics and services, as well as enhanced network observability.
トピック 4	Module 5 – EDA (Event Driven Automation) Introduction

質問 # 22
Which of the following is NOT a function of Nokia's SR Linux application manager?

A. It translates the application's YANG model into protobufs for the IDB.
B. It reads the application's configuration information and starts each application.
C. It manages the SR Linux and customer-defined applications.
D. It monitors the health of all applications.

正解：A

解説：
The SR Linux application manager does not perform the function of translating an application's YANG model into protobufs for the Interface DataBase (IDB). Its primary roles are managing applications, reading their configuration, and monitoring their health.

質問 # 23
Examine the exhibit. Which of the following statements is TRUE?

A. The next-hop group for this static route is configured with two next-hops.
B. The next-hop selected for this route will be based on the preference value configured for each next-hop.
C. A recursive lookup is performed to resolve 10.2.1.0 to use 10.1.1.0.
D. A recursive lookup is performed to resolve 10.1.1.0 to use 10.2.1.0.

正解：A

解説：
The static route shows two next-hop IP addresses (10.1.1.0 and 10.2.1.0) listed, indicating that a next-hop group with multiple next-hops is configured for load balancing or redundancy.

質問 # 24
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?

A. Uses the Web or FTP server to provide the RPM packages and any necessary images
B. Downloads and executes provisioning scripts
C. Uses the DHCP server to provide the IP address and default gateway
D. Uses Nokia's Fabric Services System to deploy the digital sandbox automatically

正解：D

解説：
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.

質問 # 25
Which of the following statements about a CPM-filter policer is FALSE?

A. Hierarchical policing of control plane traffic is supported.
B. The system-cpu-policer is hardware-based.
C. CPM-filter entries can use both a distributed-policer and a system-cpu-policer.
D. The system-cpu-policer acts on the aggregate traffic from all line cards.

正解：B

解説：
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.

質問 # 26
Which of the following statements about the CLI modes in Nokia's SR Linux is FALSE?

A. The state mode displays the current configuration and operational information.
B. The running mode is used to make configuration changes.
C. Users can switch from one mode to another using the enter command.
D. The show mode uses pre-defined reports to display operational information.

正解：C

解説：
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.

質問 # 27
Which of the following statements about SR Linux interfaces is FALSE?

A. Layer 2 parameters such as MTU are configured at the SR Linux interface level while Layer 3 parameters are configured at the subinterface level.
B. Only one management interface is allowed.
C. Network interfaces are associated with physical ports on the linecards.
D. The loopback interface is a physical interface directly connected to another interface on the same chassis.

正解：D

解説：
The loopback interface in SR Linux is a logical, virtual interface used for management and routing purposes; it is not a physical interface directly connected to another interface on the same chassis.

質問 # 28
A static route is configured in two steps in Nokia's SR Linux. Which of the following items CANNOT be configured in the static-routes container?

A. Preference value
B. blackhole
C. IPv4 destination prefix
D. Next-hop group

正解：B

解説：
The static-routes container in Nokia SR Linux does not support configuring a blackhole route directly; it is used to configure destination prefixes, preference values, and next-hop groups for static routing.

質問 # 29
Which of the following statements about Zero Touch Provisioning (ZTP) is FALSE?

A. The ZTP process downloads a provisioning script defined in the TLS profile.
B. ZTP allows a router to become operational in the network without any pre-provisioning.
C. The ZTP process relies on a DHCP server for an IP address.
D. The ZTP process is managed by the ZTP application in Nokia SR Linux.

正解：A

解説：
The ZTP process downloads a provisioning script typically from a defined URL or server, not from a TLS profile. The TLS profile is used for securing communications but does not define the provisioning script location.

質問 # 30
Which of the following statements about the data center's leaf-spine topology (clos network) is FALSE?

A. It provides a consistent path for east-west traffic.
B. It uses ECMP to distribute traffic across duplicate links.
C. Each leaf router is connected to all the spine routers in the cluster.
D. It uses the spanning tree protocol to avoid forwarding loops.

正解：D

解説：
The leaf-spine (Clos) topology does not use the spanning tree protocol because it relies on equal-cost multipath (ECMP) routing to prevent loops and efficiently utilize all available paths. Spanning tree is typically avoided in modern data center fabrics to enable full bandwidth utilization.

質問 # 31
Which of the following statements about the YANG model used in Nokia's SR Linux is FALSE?

A. The YANG model uses a tree structure with "leafs" as the branches and "containers" as the data components.
B. The YANG model can be converted into other formats such as JSON or XML.
C. All configuration and state information is defined as a YANG model.
D. The YANG model provides a standardized way for applications to retrieve SR Linux configuration and state information.

正解：A

解説：
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.

質問 # 32
Which of the following statements about next-hop groups is TRUE?

A. A next-hop-group can only specify one next-hop for forwarding
B. Multiple static routes can use the same next-hop-group.
C. The next-hop for a next-hop-group must be a local IP address.
D. CMP destination unreachable message is always sent when blackhole is specified in the next-hop-group.

正解：B

解説：
Multiple static routes can share the same next-hop group, enabling efficient reuse of next-hop definitions for load balancing or redundancy.

質問 # 33
Which of the following statements about the IRB subinterface configuration in Nokia SR Linux is FALSE?

A. An IRB subinterface is configured in an IP-VRF network instance.
B. An IP address is configured under the IRB's subinterface.
C. One IRB subinterface is configured for each interface within a MAC-VRF network instance.
D. One IRB subinterface is configured in a MAC-VRF network instance.

正解：C

解説：
In Nokia SR Linux, IRB subinterfaces are configured one per MAC-VRF network instance, not one for each interface within that instance. Multiple IRB subinterfaces per interface are not typical.

質問 # 34
Which of the following statements about the MAC table shown in the exhibit output is FALSE?

A. The MAC address 00:25: BA:00:00:10 is learnt on more than one interface.
B. [interface ethernet-1/10 is configured with the MAC address 00:25:BA:00:00:10.
C. The MAC re-learning rate has exceeded the threshold within the specified time frame.
D. Mac-duplication detection is enabled in mac-vrf-1.

正解：A

解説：
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.

質問 # 35
Which of the following is NOT how prefixes are typically learned and advertised in a leaf and spine data center?

A. Each leaf router learns the prefixes of remote servers from other leaf routers directly using eBGP.
B. Spine routers learn prefixes from leaf routers directly using eBGP.
C. Each leaf router advertises the prefixes of its own locally connected servers.
D. Spine routers advertise learned prefixes to leaf routers directly using eBGP.

正解：A

解説：
Leaf routers do not learn prefixes from other leaf routers directly using eBGP; instead, leaf routers learn remote prefixes via spine routers. The spine acts as the route reflector or intermediary between leaf routers.

質問 # 36
Based on the exhibit output, what CLI command can be used to display the contents of "bgp-log" in Nokia's SR Linux?