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Question 79/85
What is the main purpose of Bidirectional Forwarding Detection (BFD)?
Correct Answer: A
Bidirectional Forwarding Detection (BFD)is a network protocol used to detect failures in the network path between two devices quickly.
Step-by-Step Breakdown:
* Path Failure Detection:BFD provides a low-overhead mechanism for detecting failures in forwarding paths across Layer 3 networks. It is much faster than traditional routing protocol timers and can detect failures within milliseconds.
* BFD in Routing:BFD can be integrated with routing protocols like OSPF, BGP, or IS-IS to trigger a faster convergence when a network path goes down.
Juniper Reference:
* BFD Configuration: Juniper devices use BFD to monitor network paths and ensure fast failure detection, enhancing network resilience.
Step-by-Step Breakdown:
* Path Failure Detection:BFD provides a low-overhead mechanism for detecting failures in forwarding paths across Layer 3 networks. It is much faster than traditional routing protocol timers and can detect failures within milliseconds.
* BFD in Routing:BFD can be integrated with routing protocols like OSPF, BGP, or IS-IS to trigger a faster convergence when a network path goes down.
Juniper Reference:
* BFD Configuration: Juniper devices use BFD to monitor network paths and ensure fast failure detection, enhancing network resilience.
- Question List (85q)
- Question 1: Which of the following are true regarding port modes in a VL...
- Question 2: Exhibit: (Exhibit) Referring to the exhibit, which statement...
- Question 3: Which statement is correct about OSPF?...
- Question 4: Which three actions are required to implement filter-based f...
- Question 5: Exhibit: (Exhibit) Referring to the exhibit, what is the rou...
- Question 6: Which two statements are correct about using LACP on a Junos...
- Question 7: Which OSPF troubleshooting tool is used to check the OSPF pr...
- Question 8: Exhibit: (Exhibit) R2 received an OSPF update from R1, and i...
- Question 9: What is the primary function of a VLAN?...
- Question 10: With regards to graceful restart, which two statements are t...
- Question 11: How does OSPF calculate the best path to a particular prefix...
- Question 12: Which statement is correct about a three-stage IP fabric und...
- Question 13: What is Integrated Routing and Bridging (IRB) primarily used...
- Question 14: What is the primary role of an IRB interface in a VLAN confi...
- Question 15: When evaluating BGP routes, what will be evaluated first?...
- Question 16: Which Junos operational mode command is used to troubleshoot...
- Question 17: What is the default route preference of a static route in th...
- Question 18: Which statement about switches is correct?...
- Question 19: Which BGP message type is used to establish peering sessions...
- Question 20: A generated route is configured under which hierarchy?...
- Question 21: Which three technologies improve high availability and conve...
- Question 22: What are two consequences of having all network devices in a...
- Question 23: You are creating an IP fabric underlay and want to use OSPF ...
- Question 24: Within your router, you want to verify that you are learning...
- Question 25: Which operation mode command will display the mapping betwee...
- Question 26: In OSPF, which command is commonly used to monitor neighbor ...
- Question 27: Which of the following BGP attributes is considered first in...
- Question 28: In configuring load balancing on a network router, which asp...
- Question 29: EVPN/VXLAN is primarily used in modern data centers to:...
- Question 30: Exhibit: (Exhibit) Referring to the exhibit, which next hop ...
- Question 31: Which statement is correct about per-flow load balancing?...
- Question 32: Which Junos OS routing table stores IPv6 addresses?...
- Question 33: In Ethernet switching, what is the primary function of a sto...
- Question 34: Which of the following are true about Layer 2 and Layer 3 st...
- Question 35: You want to minimize topology disruptions in your network wh...
- Question 36: What are two requirements for an IP fabric? (Choose two.)...
- Question 37: Which statement is correct about the OSPF link-state databas...
- Question 38: What are two reasons why you would deploy an IP fabric inste...
- Question 39: Which signaling protocol is used for EVPN?...
- Question 40: Referring to the exhibit, how many stages are in this IP fab...
- Question 41: In OSPF, which term refers to routers that have interfaces i...
- Question 42: What does VXLAN stand for in the context of EVPN/VXLAN?...
- Question 43: Which route is preferred by the Junos OS software routing ta...
- Question 44: What are two device roles in a five-member Virtual Chassis? ...
- Question 45: Which two statements are correct about VLAN tags? (Choose tw...
- Question 46: In the context of Ethernet bridging on Junos devices, what i...
- Question 47: What is the purpose of using route reflectors in BGP?...
- Question 48: In OSPF, how is the Router ID determined?...
- Question 49: Which two statement are correct about trunk ports? (Choose t...
- Question 50: VLANs help in reducing which of the following? (Choose two)...
- Question 51: Referring to the exhibit, how many milliseconds will pass be...
- Question 52: Which statement is correct about an IP fabric?...
- Question 53: Which two statements are correct about aggregate routes and ...
- Question 54: BGP is primarily used for which purpose in a network?...
- Question 55: You want to enable a Junos device to support aggregated Ethe...
- Question 56: What is the main advantage of using an Overlay Network in a ...
- Question 57: (Exhibit) Referring to the exhibit, why are the BGP routes h...
- Question 58: When configuring High Availability components, which of the ...
- Question 59: When configuring static routes, which command is typically u...
- Question 60: Referring to the exhibit, you notice that after committing t...
- Question 61: Which state in the adjacency process do OSPF routers check t...
- Question 62: Which type of route is used to represent a summary of multip...
- Question 63: Which two statements are correct about EVPN-VXLAN overlay ne...
- Question 64: Filter-based forwarding is typically used to:...
- Question 65: You are configuring OSPF in your network as shown in the exh...
- Question 66: Which of the following VLAN port modes exist in Junos OS? (C...
- Question 67: Referring to the exhibit, which two statements are correct a...
- Question 68: MACsec provides protection against which two types of threat...
- Question 69: What roles do the Designated Router (DR) and Backup Designat...
- Question 70: Leaf and spine data centers are used to better accommodate w...
- Question 71: When troubleshooting issues with static routes, what is a ke...
- Question 72: In the Junos OS, what is the default behavior of a switch wh...
- Question 73: Which of the following are functions of MACsec? (Choose two)...
- Question 74: Under which Junos hierarchy is a static route configured?...
- Question 75: During a BGP Graceful Restart, what happens to the routes le...
- Question 76: In networking, what is a RIB group primarily used for?...
- Question 77: Which EBGP feature must be used when peering to a non-direct...
- Question 78: Why is EVPN often used in conjunction with VXLAN in modern d...
- Question 79: What is the main purpose of Bidirectional Forwarding Detecti...
- Question 80: Which OSPF packet types are used to establish and maintain n...
- Question 81: In Junos, which command is used to display the status of all...
- Question 82: Exhibit: (Exhibit) How many stages are shown in the exhibit?...
- Question 83: What is a key characteristic of traditional multi-tier data ...
- Question 84: When using spine and leaf fabric architectures, what is the ...
- Question 85: Referring to the exhibit, which two statements are true? (Ch...
