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JN0-280 Latest Test Labs | Practice JN0-280 Questions

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Juniper Data Center, Associate (JNCIA-DC) Sample Questions (Q105-Q110):

NEW QUESTION # 105
What is the definition of a trunk interface on a switch?

A. An interface that carries multiple VLANs.
B. An interface that carries high bandwidth.
C. An interface that carries excess traffic.
D. An interface that connects directly to powerful servers.

Answer: A

Explanation:
A trunk interface on a switch is used to carry traffic for multiple VLANs between switches or between a switch and another network device, like a router. Trunk interfaces use 802.1Q tagging to identify which VLAN the traffic belongs to.
Step-by-Step Breakdown:
Trunk Ports:
Trunk ports are typically used for inter-switch links or switch-to-router links where multiple VLANs need to be carried over the same physical connection.
VLAN traffic is tagged with a VLAN ID to ensure that it is properly identified as it crosses the trunk link.
802.1Q VLAN Tagging:
Trunk ports use 802.1Q to tag Ethernet frames with the VLAN ID. This ensures that frames are correctly forwarded to the appropriate VLANs on the other side of the trunk.
Juniper Reference:
Trunk Interface Configuration: In Juniper switches, trunk ports are configured to carry tagged traffic for multiple VLANs, which is essential for interconnecting multiple network segments.

NEW QUESTION # 106

Referring to the exhibit, why are the BGP routes hidden?

A. The BGP next hop is unreachable.
B. Load balancing is not enabled.
C. Other routes are selected because of better metrics.
D. There are too many hops to the destination.

Answer: A

Explanation:
In the exhibit, the BGP routes are marked ashidden. This typically happens when the routes are not considered valid for use, but they remain in the routing table for reference. One common reason for BGP routes being hidden is that thenext hopfor these routes is unreachable.
Step-by-Step Breakdown:
* BGP Next Hop:In BGP, when a route is received from a neighbor, thenext hopis the IP address that must be reachable for the route to be used. If the next hop is unreachable (i.e., the router cannot find a path to the next-hop IP), the route is marked as hidden.
* Analyzing the Exhibit:The exhibit shows that the BGP next hop for all hidden routes is 10.4.4.4. If this IP is unreachable, the BGP routes from that neighbor will not be considered valid, even though they appear in the routing table.
* Verification:
* Use the command show route 10.4.4.4 to check if the next-hop IP is reachable.
* If the next-hop is not reachable, the BGP routes will be hidden. Resolving the next-hop reachability issue (e.g., fixing an IGP route or an interface) will allow the BGP routes to become active.
Juniper Reference:
* Junos Command: show route hidden displays routes that are not considered for forwarding.
* Troubleshooting: Check the next hop reachability for hidden BGP routes using show route <next-hop>.

NEW QUESTION # 107
Referring to the exhibit, which two statements are true? (Choose two.)

A. The configuration will not pass the commit check.
B. The BGP group is configured to attempt an EBGP peering session with 192.168.100.1.
C. The configuration will pass the commit check.
D. The BGP group is configured to attempt an EBGP peering session with 192.168.100.2.

Answer: A,D

NEW QUESTION # 108
What are three correct layer names used in legacy hierarchical network design? (Choose three.)

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

Answer: A,C,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 # 109
Which of the following are true regarding port modes in a VLAN setup? (Choose two)

A. A trunk port can carry traffic for multiple VLANs.
B. An access port can carry traffic for multiple VLANs.
C. An access port carries traffic only for a single VLAN.
D. A trunk port is used exclusively for inter-switch links.

Answer: A,C

NEW QUESTION # 110
......

No doubt the Juniper JN0-280 certification is a valuable credential that helps you to put your career on the right track and assist you to achieve your professional career goals. To achieve this goal you need to pass the Data Center, Associate (JNCIA-DC) (JN0-280) exam. To pass the Data Center, Associate (JNCIA-DC) (JN0-280) exam you need to start this journey with valid, updated, and real Juniper JN0-280 PDF QUESTIONS. The ActualCollection JN0-280 exam practice test questions are essential study material for quick Juniper JN0-280 exam preparation.

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