Juniper JN0-280 Data Center, Associate (JNCIA-DC) Online Training
Juniper JN0-280 Online Training
The questions for JN0-280 were last updated at Feb 20,2025.
- Exam Code: JN0-280
- Exam Name: Data Center, Associate (JNCIA-DC)
- Certification Provider: Juniper
- Latest update: Feb 20,2025
Question #51
What happens if a frame with a known destination MAC address enters a switch?
- A . The egress PFE performs a MAC address lookup and determines the ingress PFE and port.
- B . The ingress PFE sends the header information to the RE.
- C . The ingress PFE performs a MAC address lookup and determines the egress PFE and port.
- D . The MAC address is added to the bridge table.
Question #52
Which statement is correct about OSPF?
- A . OSPF is link-state protocol
- B . OSPF is a path-vector protocol
- C . OSPF is a distance-vector protocol
- D . OSPF is a device-state protocol
Question #53
How does VLAN tagging benefit network segmentation?
- A . By encrypting data traffic between VLANs.
- B . By ensuring the same IP address range can be used in different VLANs.
- C . By enabling the identification and separation of traffic belonging to different VLANs.
- D . By providing a backup path for data in case of link failure.
Question #54
In networking, what is a RIB group primarily used for?
- A . To balance the load across multiple links
- B . To filter routes based on specific criteria
- C . To group multiple Routing Information Bases together for a common purpose
- D . To dynamically generate routing entries
Question #55
Fill in the blank: In BGP, a route received from an ___________ peer will not be advertised to another ___________ peer by default.
- A . IBGP, IBGP
- B . EBGP, EBGP
- C . EBGP, IBGP
- D . Static, Dynamic
Question #56
Which of the following are true regarding port modes in a VLAN setup? (Choose two)
- A . An access port can carry traffic for multiple VLANs.
- B . A trunk 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.
Question #57
What is a VLAN?
- A . A local network using only virtual machines
- B . A broadcast domain, identified by a VLAN ID
- C . A multicast domain, identified by a VLAN ID
- D . A broadcast domain, using only virtual machines
Question #58
How does a layer 2 switch populate its bridge table?
- A . It stores the protocol number of frames traversing the network.
- B . It stores both the source and destination MAC addresses of frames traversing the network.
- C . It stores the destination MAC address of frames traversing the network.
- D . It stores the source MAC address of frames traversing the network.
Question #59
Which two prefixes are contributing routes to a 10.20.0.0/18 aggregate route? (Choose two)
- A . 10.20.0.0/24
- B . 10.20.60.0/23
- C . 10.20.0.0/16
- D . 10.20.100.0/24
Question #60
Under which Junos hierarchy is a static route configured?
- A . system
- B . routing-instances
- C . routing-options
- D . protocols
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