JN0-280 Exam Questions

Which of the following is a key benefit of implementing High Availability (HA) in a network?

In OSPF, which command is commonly used to monitor neighbor relationships?

What protocol and port does BGP use for control plane communication?

Referring to the exhibit, how many milliseconds will pass before the BGP neighbor is considered dead?

What is the purpose of using route reflectors in BGP?

What does the "qualified-next-hop" feature do when configuring a static route?

In the context of Ethernet bridging on Junos devices, what is the purpose of the Spanning Tree Protocol (STP)?

Which statement is correct about the OSPF link-state database?

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

What is the primary function of a VLAN?

What roles do the Designated Router (DR) and Backup Designated Router (BDR) play in OSPF?

Which two statements are correct about BGP? (Choose two.)

Which of the following are correct about OSPF router ID selection? (Choose two)

EVPN/VXLAN is primarily used in modern data centers to:

With regards to graceful restart, which two statements are true? (Choose two.)

Which command on a router is used to view the current routing table?

What does filter-based forwarding in networking typically allow?

In troubleshooting a Virtual Chassis setup, what is a common issue to look for?

In OSPF, which term refers to routers that have interfaces in multiple areas?

Which of the following are true about Layer 2 and Layer 3 strategies in data center architectures? (Choose two)

When configuring static routes, which command is typically used?

Which Junos operational mode command is used to troubleshoot issues with VLANs?

Which two statements are correct about aggregated Ethernet bundles? (Choose two.)

Referring to the exhibit, what needs to be done to make this a valid IP fabric?

What is the main advantage of using MACsec?

When configuring BGP, which command is commonly used to define a BGP neighbor?

What is the first route selection mechanism for IBGP?

What happens if a frame with a known destination MAC address enters a switch?

Which statement is correct about OSPF?

How does VLAN tagging benefit network segmentation?

In networking, what is a RIB group primarily used for?

Fill in the blank: In BGP, a route received from an ___________ peer will not be advertised to another ___________ peer by default.

Which of the following are true regarding port modes in a VLAN setup? (Choose two)

What is a VLAN?

How does a layer 2 switch populate its bridge table?

Which two prefixes are contributing routes to a 10.20.0.0/18 aggregate route? (Choose two)

Under which Junos hierarchy is a static route configured?

Which two statements describe an OSPF ABR? (Choose two.)

Which BGP message type is used to establish peering sessions?

Which of the following statements are true regarding Graceful Restart (GR)? (Choose two)

Which VLAN tagging method inserts a 4-byte tag into the Ethernet frame?

What is the primary use of a virtual link in OSPF?

Which two statements are true with regards to MACsec?

Which OSPF troubleshooting tool is used to check the OSPF process and neighborship?

BGP is primarily used for which purpose in a network?

Why is EVPN often used in conjunction with VXLAN in modern data centers?

Which two protocols can you use for a data center underlay network? (Choose two)

Referring to the exhibit, which protocol is associated with the route selected for traffic destinated to 10.255.14.177?

Load balancing in routing is used to:

What is the primary purpose of OSPF in network routing?