JN0-280 exam

What is the primary purpose of MAC address filtering on a switch?A . To control the flow of encrypted data.B . To limit the rate of incoming packets.C . To prevent unauthorized devices from accessing the network.D . To distribute traffic evenly across multiple links.View AnswerAnswer: C

What is the purpose of using route reflectors in BGP?A . To encrypt BGP messagesB . To reduce the number of required IBGP sessions in a networkC . To increase the speed of BGP convergenceD . To automatically select the best routeView AnswerAnswer: B

Which two statements are correct about aggregated Ethernet bundles? (Choose two.)A . You must enable the chassis to support aggregated Ethernet interfaces.B . You must purchase a services license for the chassis to support aggregate Ethernet interfaces.C . You must specify which interfaces are members of a specific aggregated Ethernet...

In the context of Ethernet bridging on Junos devices, what is the purpose of the Spanning Tree Protocol (STP)?A . To prevent routing loops.B . To provide a mechanism for VLAN tagging.C . To prevent Layer 2 switching loops.D . To filter MAC addresses.View AnswerAnswer: C

Which statement is correct about a five-stage IP fabric topology?A . There is a maximum of five hops between any end-devicesB . They are commonly referred to as interconnected data centersC . There is a maximum of three hops between any end-devicesD . They are typically deployed in small to...

Under which Junos hierarchy is a static route configured?A . systemB . routing-instancesC . routing-optionsD . protocolsView AnswerAnswer: C

Fill in the blank: In BGP, a route received from an ___________ peer will not be advertised to another ___________ peer by default.A . IBGP, IBGPB . EBGP, EBGPC . EBGP, IBGPD . Static, DynamicView AnswerAnswer: A

What is an advantage of using BFD?A . BFD is so lightweight that each protocol will generate its own unique BFD session by default, to replace its own hello messages.B . BFD built to handle the routing table of the entire Internet, and can safely redistribute it into OSPF.C ....

In OSPF, which term refers to routers that have interfaces in multiple areas?A . Internal RoutersB . Backbone RoutersC . Area Border Routers (ABRs)D . Autonomous System Boundary Routers (ASBRs)View AnswerAnswer: C

In the context of Link Aggregation Groups (LAG), what is the primary purpose of LACP?A . To provide a method for encrypting data packetsB . To dynamically manage the bundling of several physical portsC . To reduce the speed of data transferD . To increase the error rate in data...