あなたを合格させるJN0-481お手軽に試験合格リアルJN0-481練習問題集で更新されたのは2026年03月27日
2026年最新の実際に出ると確認されたで無料Juniper JN0-481試験問題
質問 # 32
What is the purpose of using a routing zone inside Juniper Apstra software?
- A. A routing zone is defined to secure the routing protocols.
- B. A routing zone is used to enable L4-L7 inspection inside the fabric.
- C. A routing zone defined at the Apstra manager level requires firewalls to be deployed.
- D. A routing zone is used to enable the communication between two VNIs within a VRF.
正解：D
解説：
A routing zone is an L3 domain, the unit of tenancy in multi-tenant networks. You create routing zones for tenants to isolate their IP traffic from one another, thus enabling tenants to re-use IP subnets. In addition to being in its own VRF, each routing zone can be assigned its own DHCP relay server and external system connections. You can create one or more virtual networks within a routing zone, which means a tenant can stretch its L2 applications across multiple racks within its routing zone. For virtual networks with Layer 3 SVI, the SVI is associated with a Virtual Routing and Forwarding (VRF) instance for each routing zone isolating the virtual network SVI from other virtual network SVIs in other routing zones.
質問 # 33
In the case of IP Clos data center five-stage fabric design, what are two rotes of the super spines? (Choose two.)
- A. Super spines are used to interconnect two different data center pods.
- B. Super spines are used to connect leaf nodes within a data center pod.
- C. Super spines connect to all spine devices within the five-stage architecture.
- D. Super spines are always connected to an external data center gateway.
正解：A、C
解説：
In the case of IP Clos data center five-stage fabric design, the super spines are the devices that provide the highest level of aggregation in the network. They have two main roles:
Super spines are used to interconnect two different data center pods. A pod is a cluster of leaf and spine devices that form a 3-stage Clos topology. A 5-stage Clos topology consists of multiple pods that are connected by the super spines. This allows for scaling the network to support more devices and bandwidth.
Super spines connect to all spine devices within the five-stage architecture. The spine devices are the devices that provide the second level of aggregation in the network. They connect to the leaf devices, which are the devices that provide access to the end hosts. The super spines connect to all the spine devices in the network, regardless of which pod they belong to. This provides any-to-any connectivity between the pods and enables optimal routing and load balancing.
質問 # 34
You are working with a three-stage IP fabric using EBGP for peering. In this scenario, which two actions are required to implement ECMP? (Choose two.)
- A. Use a load balancing policy applied to BGP as an export policy.
- B. Use a load balancing policy applied lo BGP as an import policy.
- C. Use a load balancing policy applied to the forwarding table as an export policy.
- D. Use the multipath multiple-as BGP parameter.
正解：A、D
解説：
To implement ECMP in IP fabric using EBGP, you need to enable BGP to install multiple equal- cost paths in the routing table and to advertise them to the peers.
質問 # 35
What is one indicator in the Apstra UI that implies that changes to a blueprint are ready to be committed?
- A. The Staged tab turns green
- B. Interface maps have been assigned through Device Profiles.
- C. Each assigned device has been set to Deploy mode.
- D. The Staged tab turns yellow
正解：A
質問 # 36
In Juniper Apstra. which three modes are available for devices? (Choose three.)
- A. Drain
- B. Deploy
- C. Ready
- D. Stopped
- E. Active
正解：A、B、C
解説：
Juniper Apstra supports three deploy modes for devices: Deploy, Drain, and Ready. These modes determine the configuration and state of the devices in the data center fabric.
Deploy: This mode applies the full Apstra-rendered configuration to the device, according to the Apstra Reference Design. The device state becomes IS-ACTIVE and the device is ready to carry traffic in the fabric.
Drain: This mode adds a "drain" configuration to the device, which prevents any new traffic from entering the device. The device state becomes IS-READY and the device is prepared for maintenance or decommissioning.
Ready: This mode removes the Apstra-rendered configuration from the device, leaving only the basic configuration such as device hostname, interface descriptions, and port speed/breakout.
The device state becomes IS-READY and the device is not part of the fabric.
質問 # 37
Which two statements ate correct about the information shown in the exhibit? (Choose two.)
- A. Four physical interfaces exist in a LAG facing the leaf pair.
- B. The physical ports are not part of the LAG.
- C. The device shown is a generic system.
- D. The system is fully managed by Juniper Apstra.
正解：A、C
解説：
A generic system is a device that is not managed by Juniper Apstra and does not have a specific role or type assigned to it. A generic system can be used to represent a server, a firewall, a load balancer, or any other device that is not part of the fabric. In the exhibit, the device shown is a generic system, as indicated by its role, system type, and management level. Therefore, the correct answer is B. The device shown is a generic system. A LAG is a link aggregation group that bundles multiple physical interfaces into a single logical interface. A LAG can provide increased bandwidth, redundancy, and load balancing for the network traffic. In the exhibit, the device shown has four physical interfaces that are part of a LAG, as indicated by their description and li_type. The LAG is facing the leaf pair, which are the two switches that connect to the device.
質問 # 38
Which attribute enables Juniper Apstra to scale and manage thousands of devices with a single server instance?
- A. Apstra is based on NGINX.
- B. Apstra is a distributed state system.
- C. Apstra is available as an OVA.
- D. Apstra is installed as a cloud resource.
正解：B
解説：
The attribute that enables Juniper Apstra to scale and manage thousands of devices with a single server instance is that Apstra is a distributed state system. This means that Apstra uses a graph database to store the network topology and configuration data in a distributed and replicated manner across multiple server nodes. This allows Apstra to handle large-scale networks with high performance, reliability, and availability. Apstra also uses a stateful orchestration engine that ensures the network state is always consistent with the intent of the blueprint, which is the logical representation of the network design and behavior. Apstra can automatically detect and resolve any discrepancies between the desired and actual network state, as well as handle any changes or failures in the network.
質問 # 39
Multilenancy for applications is achieved by creating virtual networks (VNs) within which construct?
- A. connectivity template
- B. security policy
- C. routing table
- D. routing zone
正解：D
解説：
A routing zone is an L3 domain, the unit of tenancy in multi-tenant networks. You create routing zones for tenants to isolate their IP traffic from one another, thus enabling tenants to re-use IP subnets. In addition to being in its own VRF, each routing zone can be assigned its own DHCP relay server and external system connections. You can create one or more virtual networks within a routing zone, which means a tenant can stretch its L2 applications across multiple racks within its routing zone.
質問 # 40
Which statement is true when onboarding a Juniper Networks device using a Juniper Apstra ZTP server?
- A. The State can be set In the ztp.Json file on the ZTP server.
- B. The Management IP address cannot be predetermined.
- C. The Device Key lo be used can be set In the dhcpd.conf file on the ZTP server.
- D. The Hostname will be the serial-number of the device.
正解：A
解説：
The ztp.Json file on the Apstra ZTP server contains the configuration parameters for each device that is onboarded using ZTP. One of the parameters is the State, which can be one of the following values: init, ready, in_progress, done, error, or disabled. The State indicates the current status of the device in the ZTP process. For example, if the State is ready, it means that the device is ready to be onboarded by the Apstra ZTP server. If the State is done, it means that the device has completed the ZTP process and is managed by the Apstra server. The State can be manually set or changed in the ztp.Json file to control the behavior of the device during ZTP.
質問 # 41
You want to add a configuration that is not supported by Juniper Apstra reference architecture using a configlet.
Which two configurations would be applicable in this scenario? (Choose two.)
- A. NTP configuration
- B. static route configuration
- C. syslog configuration
- D. policy configuration
正解：A、C
解説：
A configlet is a configuration template that augments Apstra's reference design with non-native device configuration. They consist of one or more generators. Each generator specifies a NOS type (config style), when to render the configuration, and CLI commands (and file name as applicable).
Some applications for configlets include the following:
- Syslog
- SNMP access policy
- TACACS / RADIUS
- Management ACLs
- Control plane policing
- NTP
- Username / password
質問 # 42
What is the purpose of an interface map in Juniper Apstra?
- A. An interface map associates a logical device with a device profile.
- B. An interface map specifies the connections between racks in a template.
- C. An interface map specifies the number of ports and the port speeds of a logical device
- D. An interface map specifies a connection between the interfaces of two devices.
正解：D
解説：
An interface map is a configuration template that maps interfaces between logical devices and physical hardware devices (represented with device profiles) while adhering to vendor specifications. An interface map specifies a connection between the interfaces of two devices, such as a leaf and a spine, a leaf and a server, or a leaf and an external gateway. An interface map can also specify port transformations, such as breaking out a 40 GbE port into four 10 GbE ports, or disabling unused ports. An interface map can be used to achieve the intended network configuration rendering and to enable features such as LAG, ESI-LAG, or MLAG.
質問 # 43
How does Apstra use Fabric Device Management to ensure consistency across the network?
- A. By adjusting the color-coding of cables in the data center
- B. By assigning different agents to devices based on their location
- C. By enforcing uniform configurations on all network devices
- D. By randomly assigning system IDs to devices
正解：C
質問 # 44
You are installing a Juniper Apstra server in your data center. You have multiple users that will be expected to configure, manage, and carry out operational tasks in your data center. You have decided to implement remote user authentication for the role-based access control of your Apstra server. In this scenario, which three methods are supported? (Choose three.)
- A. RADIUS
- B. LDAP
- C. Auth0
- D. TACACS+
- E. SAML
正解：A、B、D
解説：
To implement remote user authentication for the role-based access control of your Apstra server, you can use one of the following methods: TACACS+, LDAP, or RADIUS. These are the protocols that Juniper Apstra supports to authenticate and authorize users based on roles assigned to individual users within an enterprise. You can configure the Apstra server to use one or more of these protocols as the authentication sources and specify the order of preference. You can also configure the Apstra server to use local user accounts as a fallback option if the remote authentication fails.
質問 # 45
Referring to the exhibit, which statement is correct?
- A. The red-striped primitives indicate that they are incompatible with the connectivity template design.
- B. The gray-solid primitives indicate further configuration is requited.
- C. The red-striped primitives indicate that further configuration is required.
- D. The gray-solid primitives indicate that they ate incompatible with the connectivity template design.
正解：C
解説：
A connectivity template is a set of configuration parameters that can be applied to a device or a group of devices in a blueprint. A blueprint is a logical representation of the network design and intent. A primitive is a basic unit of configuration that can be added to a connectivity template. A primitive can be a link, a peering, a policy, or a service. In the exhibit, the red-striped primitives indicate that further configuration is required for them to be compatible with the connectivity template design. The red stripes mean that the primitive is incomplete or invalid, and it needs to be edited or deleted. For example, the IP Link primitive needs to have the interface name and IP address specified for each end of the link.
質問 # 46
In Juniper Apstra, what are three valid deploy modes when assigning systems to your blueprint?
(Choose three.)
- A. Drain
- B. Deploy
- C. Standby
- D. Ready
- E. OOS-Ready
正解：A、B、D
質問 # 47
You want to keep virtual networks isolated from each other within the Juniper Apstra system. In this scenario, what are three ways to accomplish this task? (Choose three.)
- A. Use Connectivity Templates to block access within the same Routing Zone.
- B. Disable Route Target exports when creating the Routing Zones.
- C. Put each network in different Routing Zones.
- D. Enable Security Policy for virtual networks in the same Routing Zone.
- E. Disable IPv4 connectivity when creating the virtual network within the same Routing Zone.
正解：A、C、D
解説：
To keep virtual networks isolated from each other within the Juniper Apstra system, you can use one or more of the following methods:
Enable Security Policy for virtual networks in the same Routing Zone. This allows you to define rules that control the traffic flow between different virtual networks within the same routing zone.
You can specify the source and destination virtual networks, the protocol, the port, and the action (allow or deny) for each rule. The security policy is applied on the ingress interface of the leaf devices.
Use Connectivity Templates to block access within the same Routing Zone. This allows you to customize the connectivity between different racks within the same routing zone. You can create templates that define the link type, the routing protocol, and the access control list (ACL) for each rack pair. The ACL can be used to filter the traffic based on the source and destination IP addresses, the protocol, and the port.
Put each network in different Routing Zones. This allows you to create logical boundaries between different virtual networks based on the route target (RT) values. A routing zone is a collection of virtual networks that share the same RT for importing and exporting routes. Virtual networks in different routing zones do not exchange routes with each other, unless you configure remote EVPN gateways to connect them.
質問 # 48
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