Free PDF Quiz JN0-280 - Reliable Clearer Data Center, Associate (JNCIA-DC) Explanation

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To pass the JN0-280 exam, candidates must have a solid understanding of the data center components, their functions, and how they interoperate. They must also be familiar with the configuration, management, and troubleshooting of Juniper Networks data center products, including switches, routers, firewalls, and security devices.

The JN0-280 exam is also known as the Data Center, Associate (JNCIA-DC) exam. It covers a wide range of topics, including data center architecture, data center networking technologies, virtualization, storage, and security. JN0-280 Exam consists of multiple-choice questions and requires candidates to demonstrate their knowledge of data center technologies and their ability to configure and troubleshoot Juniper Networks devices.

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Free PDF Quiz Juniper - JN0-280 –Efficient Clearer Explanation

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Juniper Data Center, Associate (JNCIA-DC) Sample Questions (Q59-Q64):

NEW QUESTION # 59
What are three correct layer names used in legacy hierarchical network design? (Choose three.)

A. Aggregation layer
B. Function layer
C. Modular layer
D. Core layer
E. Access layer

Answer: A,D,E

Explanation:
Inlegacy hierarchical network design, three key layers are used to create a scalable and structured network:
Step-by-Step Breakdown:
* Access Layer:
* The access layer is where end devices, such as computers and IP phones, connect to the network.
It typically involves switches that provide connectivity for devices at the edge of the network.
* Aggregation Layer (Distribution Layer):
* The aggregation layer (also called the distribution layer) aggregates traffic from multiple access layer devices and applies policies such as filtering and QoS. It also provides redundancy and load balancing.
* Core Layer:
* The core layer provides high-speed connectivity between aggregation layer devices and facilitates traffic within the data center or between different network segments.
Juniper Reference:
* Legacy Hierarchical Design: Juniper networks often follow the traditional three-layer design (Access, Aggregation, and Core) to ensure scalability and high performance.

NEW QUESTION # 60
Which statement is correct about an IRB interface?

A. An IRB interface is a physical Layer 3 interface that connects VLANs together.
B. An IRB interface trunks together VLANs on different switches.
C. An IRB interface switches traffic within the same VLAN.
D. An IRB interface is a Layer 3 interface that can be used to route between VLANs.

Answer: D

Explanation:
AnIRB (Integrated Routing and Bridging)interface provides routing functionality between VLANs at Layer 3, allowing devices in different VLANs to communicate with each other.
Step-by-Step Breakdown:
* IRB Functionality:
* The IRB interface enables routing between different VLANs by acting as a Layer 3 gateway.
Traffic within the same VLAN is handled by Layer 2 switching, while traffic between VLANs is routed through the IRB interface.
* Layer 3 Routing Between VLANs:
* Each VLAN can be assigned an IP address on the IRB interface, which allows traffic to flow between VLANs based on Layer 3 IP routing.
Juniper Reference:
* IRB Interface Configuration: Juniper supports IRB for inter-VLAN routing on devices like the EX and QFX series switches, facilitating Layer 3 communication in data centers.

NEW QUESTION # 61
Which two statements are correct about aggregate routes and generated routes? (Choose two.)

A. A generated route has a forwarding next hop.
B. A generated route does not have a forwarding next hop.
C. An aggregate route does not have a forwarding next hop.
D. An aggregate route has a forwarding next hop.

Answer: A,C

Explanation:
Aggregate routesandgenerated routesare used to create summarized routes in Junos, but they behave differently in terms of forwarding.
Step-by-Step Breakdown:
* Aggregate Routes:
* Anaggregate routesummarizes a set of more specific routes, but it does not have a direct forwarding next hop. Instead, it points to the more specific routes for actual packet forwarding.
* Generated Routes:
* Agenerated routealso summarizes specific routes, but it has aforwarding next hopthat is determined based on the availability of contributing routes. The generated route can be used to directly forward traffic.
Juniper Reference:
* Aggregate and Generated Routes: In Junos, aggregate routes rely on more specific routes for forwarding, while generated routes can forward traffic directly based on their next-hop information.

NEW QUESTION # 62
In a Spine/Leaf IP-Fabric architecture, what is the primary role of the leaf switches?

A. To manage the overall data center network.
B. To perform deep packet inspection.
C. To interconnect different data centers.
D. To provide direct connectivity to servers.

Answer: D

NEW QUESTION # 63
In OSPF, which command is commonly used to monitor neighbor relationships?

A. show ospf database
B. show ip route ospf
C. show ospf interfaces
D. show ip ospf neighbors

Answer: D

NEW QUESTION # 64
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Free PDF Quiz JN0-280 - Reliable Clearer Data Center, Associate (JNCIA-DC) Explanation

Free PDF Quiz Juniper - JN0-280 –Efficient Clearer Explanation

Juniper Data Center, Associate (JNCIA-DC) Sample Questions (Q59-Q64):

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