In BFD asynchronous mode, how are control packets exchanged?

Control packets are sent only when the link is idle to save bandwidth.

Control packets are sent only when there is a change in the routing table.

Both devices send control packets periodically at the negotiated transmit interval.

Only the initiator sends control packets; the responder only sends when it detects a failure.

Which Junos configuration statement is used to enable BFD on a static route?

set protocols ospf area 0 interface ge-0/0/0 bfd-liveness-detection

set protocols bgp group external peer-as 65000 neighbor 192.0.2.1 bfd-liveness-detection

set routing-options static route 10.0.0.0/24 next-hop 192.0.2.1 bfd-liveness-detection

set interfaces ge-0/0/0 unit 0 family inet bfd-liveness-detection

A network engineer is configuring BFD on a static route in Junos. The static route has two next-hops for redundancy. They want BFD to monitor both next-hops. What is the correct configuration approach?

Configure BFD under the routing-options static section

Configure BFD under each next-hop individually

Configure BFD under the interface that the static route uses

Configure BFD once under the static route and it applies to all next-hops

What is the primary purpose of Bidirectional Forwarding Detection (BFD) in a Juniper Networks data center environment?

To provide a backup path for forwarding traffic when a primary link fails

To detect forwarding path failures quickly and signal them to routing protocols so they can react faster

To synchronize routing tables between devices to ensure consistent forwarding decisions

To encrypt control traffic between routing peers to prevent eavesdropping

Juniper NetworksCertified Associate, Data Center

Domain 5Objective 3

Bidirectional Forwarding Detection (BFD) JN0-281 Practice Questions (Page 4)

Part of the High Availability domain, which makes up ~21% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~7–13 in this domain), expect 1–3 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

6concepts

Questions 16–20

16foundation · easy
In BFD asynchronous mode, how are control packets exchanged?
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17application · medium
Two routers are negotiating BFD parameters. Router A has a required receive interval of 100 ms and a desired transmit interval of 200 ms. Router B has a required receive interval of 150 ms and a desired transmit interval of 100 ms. What will be the negotiated receive interval on Router A?
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18foundation · easy
Which Junos configuration statement is used to enable BFD on a static route?
Select an answer first
19expert · hard
A network engineer is configuring BFD on a static route in Junos. The static route has two next-hops for redundancy. They want BFD to monitor both next-hops. What is the correct configuration approach?
Select an answer first
20foundation · easy
What is the primary purpose of Bidirectional Forwarding Detection (BFD) in a Juniper Networks data center environment?
Select an answer first

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