Quiz 2025 Accurate Juniper JN0-280: Data Center, Associate (JNCIA-DC) Reliable Exam Vce

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Juniper JN0-280 exam is designed for individuals who want to pursue a career in data center networking. It is an associate-level certification that validates the candidate's knowledge and skills in various data center technologies, including virtualization, switching, routing, and security. JN0-280 Exam is intended for network administrators, technicians, and engineers who work with Juniper Networks technologies in data center environments.

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Juniper Data Center, Associate (JNCIA-DC) Sample Questions (Q118-Q123):

NEW QUESTION # 118
Which route is preferred by the Junos OS software routing tables?

A. Aggregate
B. Direct
C. BGP
D. Static

Answer: B

Explanation:
In Junos OS,direct routesare the most preferred routes in the routing table, having the highest priority.
Step-by-Step Breakdown:
* Direct Routes:
* Direct routes represent networks that are directly connected to the router's interfaces. Since these routes are directly accessible, they are assigned the highest priority and always take precedence over other types of routes.
* Preference Values:
* Direct routes have apreference of 0, which is the most preferred in Junos. Static routes, OSPF routes, and BGP routes have higher preference values and will only be used if there are no direct routes to the destination.
Juniper Reference:
* Direct Route Preference: In Junos,direct routesare always preferred over other routes, ensuring that the router forwards traffic through locally connected networks.

NEW QUESTION # 119
Which statement is correct about the OSPF link-state database?

A. Each router within the OSPF domain must maintain an identical copy of the link-state database.
B. Each router within the same area must maintain an identical copy of the link-state database.
C. Each router within the OSPF domain must maintain a unique copy of the link-state database.
D. Each router within the same area must maintain a unique copy of the link-state database.

Answer: B

NEW QUESTION # 120
Which LSA types are associated with OSPF? (Choose three)

A. Network LSA (Type 2)
B. External LSA (Type 5)
C. Router LSA (Type 1)
D. Summary LSA (Type 3)

Answer: A,C,D

NEW QUESTION # 121
A switch receives a frame with a MAC address of FF-FF-FF-FF-FF-FF. Which action will the switch take on this frame?

A. It will flood it out of all interfaces, except for the ingress interface.
B. It will flood it out of all interfaces.
C. It will flood it out of all interfaces, except for the directly connected VLAN.
D. It will flood it out of all interfaces, except for the next-hop interface.

Answer: A

Explanation:
AMAC address of FF-FF-FF-FF-FF-FFis the Ethernetbroadcast address. When a switch receives a frame with this destination MAC address, it is required to forward the frame to all interfaces except the one it was received on.
Step-by-Step Breakdown:
* Broadcast Frame Handling:When a frame with the broadcast MAC address is received, the switch will flood it out of all active ports that belong to the same VLAN as the incoming frame. The broadcast frame is not sent back out of the ingress interface (the interface where the frame was originally received).
* Purpose of Flooding:Broadcasting is used to ensure that the frame reaches all devices within the broadcast domain (all devices within the same VLAN), which may not have a specific entry for the MAC address in their MAC address table.
Juniper Reference:
* Layer 2 Frame Forwarding: Juniper switches flood broadcast frames to all ports in the same VLAN, except the port the frame was received on.

NEW QUESTION # 122

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

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

Answer: C

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 # 123
......

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Quiz 2025 Accurate Juniper JN0-280: Data Center, Associate (JNCIA-DC) Reliable Exam Vce

Latest JN0-280 Test Cost, Interactive JN0-280 Course

Juniper Data Center, Associate (JNCIA-DC) Sample Questions (Q118-Q123):

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