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Juniper

JN0-102 · Question #412

Which source of routing information is preferred by default?

The correct answer is C. direct. Direct routes, representing directly connected networks, are given the highest preference by default over all other routing information sources due to their inherent reliability.

Routing Fundamentals

Question

Which source of routing information is preferred by default?

Options

  • ABGP
  • BRIP
  • Cdirect
  • Dstatic

How the community answered

(44 responses)
  • B
    5% (2)
  • C
    93% (41)
  • D
    2% (1)

Why each option

Direct routes, representing directly connected networks, are given the highest preference by default over all other routing information sources due to their inherent reliability.

ABGP

BGP (Border Gateway Protocol) routes typically have a lower preference than direct or static routes in a local router's routing table, such as Junos default preference of 170.

BRIP

RIP (Routing Information Protocol) routes have a relatively low preference compared to direct or static routes, with a Junos default preference of 100.

CdirectCorrect

Direct routes, which are routes to directly connected networks, have the highest preference (lowest administrative distance/preference value) by default in most routing protocols, including Junos, meaning they are always preferred over other route types.

Dstatic

Static routes have a higher preference than most dynamic routing protocols but are still less preferred than direct routes, with a Junos default preference of 5.

Concept tested: Junos route preference (administrative distance)

Source: https://www.juniper.net/documentation/us/en/software/junos/routing-policy/topics/concept/routing-protocol-route-preferences.html

Topics

#routing preference#administrative distance#route sources#direct routes

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