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Free PDF Quiz JN0-280 - Data Center, Associate (JNCIA-DC) Newest Cheap Dumps

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Juniper JN0-280 exam is designed for network engineers who specialize in data center technologies. It is an Associate-level certification that is intended to validate the foundational knowledge and skills required to configure, monitor, and troubleshoot Juniper Networks data center devices and technologies.

Juniper JN0-280 certification exam is designed for those who work in roles such as data center technicians, network engineers, and system administrators. JN0-280 Exam is ideal for those who want to start their career in data center technology or want to enhance their existing knowledge and skills. Data Center, Associate (JNCIA-DC) certification exam validates the knowledge and skills required to plan, implement, and manage data center networks using Juniper Networks technologies.

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JN0-280 Exam Actual Questions | JN0-280 Valid Test Practice

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The JNCIA-DC exam is a vendor-neutral certification that covers a range of topics related to data center technologies. JN0-280 Exam is designed to test the candidate’s understanding of data center technologies, including networking, storage, and virtualization. It also covers topics such as data center architecture, data center operations, and data center security.

Juniper Data Center, Associate (JNCIA-DC) Sample Questions (Q76-Q81):

NEW QUESTION # 76
Which Junos OS routing table stores IPv6 addresses?

A. inet.6
B. inet.0
C. inet6.0
D. inet0.6

Answer: C

Explanation:
In Junos OS, routing information is stored in different routing tables depending on the protocol and address family. For IPv6 addresses, the routing table used isinet6.0.
Step-by-Step Explanation:
* Routing Tables in Junos:
* inet.0: This is the primary routing table for IPv4 unicast routes.
* inet6.0: This is the primary routing table for IPv6 unicast routes.
* inet.3: This routing table is used for MPLS-related routing.
* Other routing tables, like inet.1, inet.2, are used for multicast and other specific purposes.
* inet6.0 Routing Table:When IPv6 is enabled on a Juniper router, all the IPv6 routes are stored in the inet6.0table. This includes both direct routes (connected networks) and learned routes (from dynamic routing protocols like OSPFv3, BGP, etc.).
* Verification:To view IPv6 routes, the command show route table inet6.0 is used. This will display the contents of the IPv6 routing table, showing the network prefixes, next-hop addresses, and protocol information for each route.
Juniper Reference:
* Junos Command: Use show route table inet6.0 to check IPv6 routing entries.
* IPv6 Routing: Ensure that the IPv6 protocol is enabled on interfaces and that routingprotocols like OSPFv3 or BGP are properly configured for IPv6 traffic handling.

NEW QUESTION # 77
Which OSPF router type connects an OSPF area to non-OSPF networks?

A. Internal Router
B. Backbone Router
C. Autonomous System Boundary Router (ASBR)
D. Area Border Router (ABR)

Answer: C

NEW QUESTION # 78
Which two statements are correct about VLAN tags? (Choose two.)

A. VLAN tags are required on access ports.
B. VLAN tags can be inserted or removed by trunk interfaces.
C. VLAN tags require multiple forwarding tables.
D. VLAN tags carry a VLAN ID and priority.

Answer: B,D

Explanation:
VLAN tagsare used in Ethernet frames to identify and differentiate traffic between multiple VLANs. They are especially important for devices like switches that handle multiple VLANs on the same physical link.
Step-by-Step Breakdown:
* VLAN Tag Contents:
* VLAN ID: The tag contains a 12-bit VLAN ID field that identifies the VLAN to which the frame belongs.
* Priority: The tag also includes a 3-bit priority field (also known as 802.1p priority) used for QoS (Quality of Service) to prioritize traffic.
* Trunk Ports and VLAN Tagging:
* Trunk Portsare used to carry traffic for multiple VLANs across a single link. These interfaces insert (tag) VLAN identifiers into frames when they leave the switch and remove (untag) them when frames enter the switch.
* Access Ports:VLAN tags are typically not used onaccess ports(ports that connect to end devices) since those ports are configured to be part of a single VLAN, and the traffic doesn't need VLAN tags.
Juniper Reference:
* VLAN Tagging: Juniper switches support VLAN tagging and ensure that frames are tagged or untagged as they traverse trunk or access ports, respectively.

NEW QUESTION # 79
In troubleshooting a Virtual Chassis setup, what is a common issue to look for?

A. Use of copper cables for inter-switch connections
B. Activation of all ports for Virtual Chassis connections
C. Incompatible software versions between member switches
D. Too many switches in a single Virtual Chassis configuration

Answer: C

NEW QUESTION # 80
Leaf and spine data centers are used to better accommodate which type of traffic?

A. north-east
B. east-west
C. south-east
D. north-west

Answer: B

Explanation:
In modern data centers, the shift toward leaf-spine architectures is driven by the need to handle increased east- west traffic, which is traffic between servers within the same data center. Unlike traditional hierarchical data center designs, where most traffic was "north-south" (between users and servers), modern applications often involve server-to-server communication (east-west) to enable services like distributed databases, microservices, and virtualized workloads.
Leaf-Spine Architecture:
* Leaf Layer: This layer consists of switches that connect directly to servers or end-host devices. These switches serve as the access layer.
* Spine Layer: The spine layer comprises high-performance switches that provide interconnectivity between leaf switches. Each leaf switch connects to every spine switch, creating a non-blocking fabric that optimizes traffic flow within the data center.
East-West Traffic Accommodation:
In traditional three-tier architectures (core, aggregation, access), traffic had to traverse multiple layers, leading to bottlenecks when servers communicated with each other. Leaf-spine architectures address this by creating multiple equal-cost paths between leaf switches and the spine. Since each leaf switch connects directly to every spine switch, the architecture facilitates quick, low-latency communication between servers, which is essential for east-west traffic flows.
Juniper's Role:Juniper Networks provides a range of solutions that optimize for east-west traffic in a leaf- spine architecture, notably through:
* QFX Series Switches: Juniper's QFX series switches are designed for the leaf and spine architecture, delivering high throughput, low latency, and scalability to accommodate the traffic demands of modern data centers.
* EVPN-VXLAN: Juniper uses EVPN-VXLAN to create a scalable Layer 2 and Layer 3 overlay network across the data center. This overlay helps enhance east-west traffic performance by enabling network segmentation and workload mobility across the entire fabric.
Key Features That Support East-West Traffic:
* Equal-Cost Multipath (ECMP): ECMP enables the use of multiple paths between leaf and spine switches, balancing the traffic and preventing any one path from becoming a bottleneck. This is crucial in handling the high volume of east-west traffic.
* Low Latency: Spine switches are typically high-performance devices that minimize the delay between leaf switches, which improves the efficiency of server-to-server communications.
* Scalability: As the demand for east-west traffic grows, adding more leaf and spine switches is straightforward, maintaining consistent performance without redesigning the entire network.
In summary, the leaf-spine architecture is primarily designed to handle the increase ineast-west trafficwithin data centers, and Juniper provides robust solutions to enable this architecture through its switch platforms and software solutions like EVPN-VXLAN.

NEW QUESTION # 81
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