JN0-280 exam

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...

What does filter-based forwarding in networking typically allow?A . Forwarding decisions based on MAC addressesB . Load balancing across multiple CPUsC . Routing decisions based on extended criteria like packet headersD . Aggregation of multiple routes into a single entryView AnswerAnswer: C

What is the function of the 'Weight' attribute in BGP, and where is it used in the route selection process?A . It is used to prioritize routes received from different EBGP peers and is considered before the AS_PATH attribute.B . It determines the stability of a route and is checked...

Which statement is correct about the OSPF link-state database?A . Each router within the same area must maintain a unique 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...

In networking, what is a RIB group primarily used for?A . To balance the load across multiple linksB . To filter routes based on specific criteriaC . To group multiple Routing Information Bases together for a common purposeD . To dynamically generate routing entriesView AnswerAnswer: C

In the context of Layer 2 switching, what does RSTP stand for?A . Rapid Spanning Tree ProtocolB . Routing Switch Transport ProtocolC . Redundant Switching Tree ProtocolD . Resilient Switching Transport ProtocolView AnswerAnswer: A

What is the primary role of an IRB interface in a VLAN configuration?A . To provide a gateway for VLAN traffic.B . To encrypt VLAN traffic.C . To prioritize VLAN traffic.D . To filter VLAN traffic based on MAC addresses.View AnswerAnswer: A

Which of the following is an important consideration when configuring BFD?A . Setting a very high multiplier to avoid false positivesB . Using the same BFD interval on all devices in the networkC . Adjusting the BFD interval and multiplier according to network needsD . Disabling all other failure detection...

EVPN/VXLAN is primarily used in modern data centers to:A . Increase the physical distance between data centers.B . Provide Layer 2 connectivity over a Layer 3 network.C . Replace traditional routing protocols.D . Enhance the physical security of the data center.View AnswerAnswer: B

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...