Free Data Center, Associate Exam JN0-281 Exam Practice Test

Which statement is correct about areas in OSPF?

• An OSPF area is used to segment Layer 2 broadcast domains.
• OSPF areas are used to isolate the effects of a broadcast storm.
• OSPF areas are used to reduce the size of the link-state database.
• An OSPF area is used to signify the autonomous system to which each device belongs.

Which Junos OS routing table stores IPv6 addresses?

• inet.0
• inet0.6
• inet.6
• inet6.0

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

• By default, IBGP has a TTL of 1.
• IBGP uses AS path for loop prevention.
• By default, IBGP has a TTL of 255.
• IBGP uses full mesh for loop prevention.

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?

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

Which statement is correct about aggregate routes?

• The default next hop is discard.
• The default next hop is readvertise.
• The default next hop is resolve.
• The default next hop is reject.

Which state in the adjacency process do OSPF routers check the MTU size?

• Init
• Exchange
• Done
• ExStart

Which two statements are correct about VLAN tags? (Choose two.)

• VLAN tags carry a VLAN ID and priority.
• VLAN tags are required on access ports.
• VLAN tags require multiple forwarding tables.
• VLAN tags can be inserted or removed by trunk interfaces.

Which statement is correct about an IRB interface?

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

Which two statements are correct about rules for EBGP and IBGP? (Choose two.)

• EBGP peers have a TTL of 1, while IBGP peers have a TTL of 255.
• EBGP peers have a TTL of 255, while IBGP peers have a TTL of 1.
• EBGP routes are more preferred than IBGP routes.
• IBGP routes are more preferred than EBGP routes.

When troubleshooting an OSPF neighborship, you notice that the router stopped at the ExStart state. What is the cause of this result?

• The priority is set to 255.
• There is an interval timing mismatch.
• There is an area ID mismatch.
• There is an MTU mismatch.