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Reliable JN0-480 Test Pass4sure | JN0-480 Valid Test Guide

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Juniper JN0-480 exam is designed for IT professionals who specialize in data center networking. Successful completion of JN0-480 exam leads to the Juniper Networks Certified Specialist Data Center (JNCIS-DC) certification. Data Center, Specialist (JNCIS-DC) certification validates the candidate's knowledge and skills in data center technologies, protocols, and architectures. The JN0-480 Exam covers a broad range of topics, including data center design and implementation, virtualization, security, and troubleshooting.

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Juniper JN0-480 Certification Exam covers a wide range of topics, including data center architectures, virtualization, Ethernet fabrics, Layer 2 and Layer 3 protocols, storage protocols, and security. JN0-480 exam consists of multiple-choice questions, and candidates are required to demonstrate their knowledge and skills in each of these areas. Successful completion of the exam is a testament to the candidate's mastery of data center networking technologies, and is an indication of their ability to design, deploy, and manage efficient and reliable data center networks.

Juniper Data Center, Specialist (JNCIS-DC) Sample Questions (Q38-Q43):

NEW QUESTION # 38
Exhibit.

Referring to the exhibit, how many tack types ate used in the staged blueprint?

A. three
B. six
C. two
D. seven

Answer: C

Explanation:
Referring to the exhibit, the image shows the Racks table under the Staged menu in the Juniper Apstra UI. The Racks table displays the details of the racks that are used in the blueprint, such as the name, rack type, and date. The rack type is a resource that defines the type and number of leaf devices, access switches, and/or generic systems that are used in rack builds1. The image shows seven racks in the table, but only two rack types: BorderLeaf and ServerRack. Therefore, the statement D is correct in this scenario.
The following three statements are incorrect in this scenario:
* A. six. This is not true, because there are not six rack types in the table, but only two. The number six corresponds to the number of racks that have the same rack type: ServerRack.
* B. three. This is not true, because there are not three rack types in the table, but only two. The number
* three does not correspond to any relevant information in the table or the image.
* C. seven. This is not true, because there are not seven rack types in the table, but only two. The number seven corresponds to the total number of racks in the table, not the rack types.
References:
* Rack Types (Datacenter Design)
* Racks (Staged)

NEW QUESTION # 39
Which attribute enables Juniper Apstra to scale and manage thousands of devices with a single server instance?

A. Apstra is available as an OVA.
B. Apstra is installed as a cloud resource.
C. Apstra is based on NGINX.
D. Apstra is a distributed state system.

Answer: D

Explanation:
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 thenetwork 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. The other options are incorrect because:
* A. Apstra is installed as a cloud resource is wrong because Apstra can be installed either as a cloud resource or as an on-premises resource. Apstra is available as a virtual machine image that can be deployed on various hypervisors, such as VMware ESXi, QEMU/KVM, Microsoft Hyper-V, or Oracle VirtualBox. Apstra can also be deployed on public cloud platforms, such as Amazon Web Services (AWS) or Microsoft Azure. However, the installation method does not affect the scalability of Apstra, which is determined by the distributed state system architecture.
* B. Apstra is based on NGINX is wrong because Apstra is not based on NGINX, but on Python and Django. NGINX is a web server and reverse proxy that Apstra uses to serve the web user interface and the REST API. However, NGINX is not the core component of Apstra, and it does not affect the scalability of Apstra, which is determined by the distributed state system architecture.
* C. Apstra is available as an OVA is wrong because Apstra is available as an OVF, not an OVA. An
* OVF (Open Virtualization Format) is a standard format for packaging and distributing virtual machine images. An OVA (Open Virtual Appliance) is a single file that contains the OVF and the virtual disk images. Apstra provides an OVF file that can be imported into various hypervisors, such as VMware ESXi, QEMU/KVM, Microsoft Hyper-V, or Oracle VirtualBox. However, the availability of Apstra as an OVF does not affect the scalability of Apstra, which is determined by the distributed state system architecture. References:
* JUNIPER APSTRA ARCHITECTURE
* Apstra Server Requirements/References
* Juniper Networks Apstra 4.0 enhances the experience of users and operators

NEW QUESTION # 40
Exhibit.

Which two statements about ESI values are correct for the server connections to the fabric shown in the exhibit? (Choose two.)

A. A valid ESI value for Server A is 0x00.00.00.00.00.00.00.00.00.00.
B. A valid ESI value for Server A is 0x00.10.10.10.10.10.10.10.10.10.
C. A valid ESI value for Server B is 0x00.20.20.20.20.20.20.20.20.20.
D. A valid ESI value for Server B is 0x00.00.00.00.00.00.00.00.00.00.

Answer: B,D

Explanation:
To answer this question, we need to understand the concept of ESI values in EVPN LAGs. An ESI is a 10-byte value that identifies an Ethernet segment, which is a set of links that connect a multihomed device (such as a server) to one or more PE devices (such as leaf switches) in an EVPN network. The same ESI value must be configured on all the PE devices that connect to the same Ethernet segment. This allows the PE devices to form an EVPN LAG, which supports active-active or active-standby multihoming for the device. The ESI value can be manually configured (type 0) or automatically derived from LACP (type 1) or other methods. In the exhibit, Server A is connected to two leaf switches (QFX 5210) using a LAG with LACP enabled. Server B is connected to three leaf switches (QFX 5120) using a LAG with LACP enabled. Based on this information, the following statements are correct about ESI values for the server connections to the fabric:
* C. A valid ESI value for Server A is 0x00.10.10.10.10.10.10.10.10.10. This is true because this ESI value can be automatically derived from the LACP configuration on the QFX 5210 devices. The LACP system ID is usually based on the MAC address of the device, and the LACP administrative key is a
2-byte value that identifies the LAG. For example, if the MAC address of the QFX 5210 device is
00:10:10:10:10:10 and the LAG ID is 10, then the LACP system ID is 00:10:10:10:10:10 and the LACP administrative key is 00:0A. The ESI value is then derived by concatenating the LACP system ID and the LACP administrative key, resulting in 00:10:10:10:10:10:00:0A. This ESI value can be represented in hexadecimal notation as 0x00.10.10.10.10.10.00.0A, or padded with zeros as
0x00.10.10.10.10.10.00.0A.00.00. This ESI value must be configured on both QFX 5210 devices that connect to Server A.
* D. A valid ESI value for Server B is 0x00.00.00.00.00.00.00.00.00.00. This is true because this ESI value is a reserved value that indicates a single-homed device. Server B is connected to three leaf switches (QFX 5120) using a LAG, but it is not multihomed to any of them. This means that Server B does not need an ESI value to form an EVPN LAG with any of the leaf switches. Instead, Server B can use the reserved ESI value of 0x00.00.00.00.00.00.00.00.00.00, which indicates that it is a single-homed device and does not participate in any EVPN LAG. This ESI value must be configured on all three QFX
5120 devices that connect to Server B. Thefollowing statements are incorrect about ESI values for the server connections to the fabric:
* A. A valid ESI value for Server A is 0x00.00.00.00.00.00.00.00.00.00. This is false because this ESI value is a reserved value that indicates a single-homed device. Server A is connected to two leaf switches (QFX 5210) using a LAG with LACP enabled, which means that it is multihomed to both of them. This means that Server A needs an ESI value to form an EVPN LAG with the leaf switches. The ESI value must be unique and non-zero for each Ethernet segment, so the reserved ESI value of
0x00.00.00.00.00.00.00.00.00.00 is not valid for Server A.
* B. A valid ESI value for Server B is 0x00.20.20.20.20.20.20.20.20.20. This is false because this ESI value is not derived from the LACP configuration on the QFX 5120 devices. Server B is connected to three leaf switches (QFX 5120) using a LAG with LACP enabled, but it is not multihomed to any of them. This means that Server B does not need an ESI value to form an EVPN LAG with any of the leaf switches. Instead, Server B can use the reserved ESI value of 0x00.00.00.00.00.00.00.00.00.00, which indicates that it is a single-homed device and does not participate in any EVPN LAG. The ESI value of
0x00.20.20.20.20.20.20.20.20.20 is not valid for Server B, and it may cause conflicts with other Ethernet segments that use the same ESI value. References:
* Ethernet Segment Identifiers, ESI Types, and LACP in EVPN LAGs
* Understanding Automatically Generated ESIs in EVPN Networks
* Ethernet Segment in EVPN: All You Need to Know

NEW QUESTION # 41
In Juniper Apstra. which statement is correct?

A. VMware anomaly detection requires an Apstra server running on VMware.
B. VMware anomaly detection requires a vCenter server configured under External Systems
C. VMware anomaly detection is on by default.
D. VMware anomaly detection requires a VMware hypervisor with exports enabled.

Answer: B

Explanation:
VMware anomaly detection is a feature of Apstra that provides visibility and validation of the virtual network settings and the physical network settings in a VMware vSphere environment. To enable this feature, Apstra requires a connection to a vCenter server that manages the ESX/ESXi hosts and the VMs connected to the Apstra-managed leaf switches. The vCenter server must be configured under External Systems in the Apstra web interface, and the vCenter integration must be staged and committed in the blueprint. This allows Apstra to collect information about VMs, ESX/ESXi hosts, port groups, and VDS, and to flag any inconsistencies or mismatches that might affect VM connectivity. The other options are incorrect because:
* VMware anomaly detection is not on by default. It must be enabled by configuring a vCenter server under External Systems and adding a virtual infra to the blueprint.
* VMware anomaly detection does not require a VMware hypervisor with exports enabled. It only requires LLDP transmit to be enabled on the VMware distributed virtual switch to associate host interfaces with leaf interfaces.
* VMware anomaly detection does not require an Apstra server running on VMware. It can run on any supported platform, such as Linux, Windows, or Docker. References:
* VMware vCenter/vSphere Virtual Infra
* Anomalies (Service)
* A Better Experience: VMware + Juniper Apstra

NEW QUESTION # 42
Exhibit.

Referring to the exhibit, which role does Device A serve in an IP fabric?

A. leaf
B. super spine
C. spine
D. server

Answer: C

Explanation:
Device A serves as a spine in an IP fabric. An IP fabric is a network architecture that uses a spine-leaf topology to provide high performance, scalability, and reliability for data center networks. A spine-leaf topology consists of two layers of devices: spine devices and leaf devices. Spine devices are the core devices that interconnect all the leaf devices using equal-cost multipath (ECMP) routing. Leaf devices are the edge devices that connect to the servers, storage, or other network devices. In the exhibit, Device A is connected to four leaf devices using multiple links, which indicates that it is a spine device. The other options are incorrect because:
* A. leaf is wrong because a leaf device is an edge device that connects to the servers, storage, or other network devices. In the exhibit, Device A is not connected to any servers, storage, or other network devices, but only to four leaf devices, which indicates that it is not a leaf device.
* C. super spine is wrong because a super spine device is a higher-level device that interconnects multiple spine devices in a large-scale IP fabric. A super spine device is typically used when the number of leaf devices exceeds the port density of a single spine device. In the exhibit, Device A is not connected to any other spine devices, but only to four leaf devices, which indicates that it is not a super spine device.
* D. server is wrong because a server device is a compute or storage device that connects to a leaf device in an IP fabric. A server device is typically the end host that provides or consumes data in the network.
In the exhibit, Device A is not connected to any leaf devices, but only to four leaf devices, which indicates that it is not a server device. References:
* IP Fabric Underlay Network Design and Implementation
* IP Fabric Overview
* IP Fabric Architecture

NEW QUESTION # 43
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