JN0-102 · Question #233
By default, what are three valid routing tables? (Choose three.)
The correct answer is A. inet.0 D. inet6.0 E. inet.3. Junos devices maintain several default routing tables, each serving specific purposes for different address families and MPLS operations.
Question
By default, what are three valid routing tables? (Choose three.)
Options
- Ainet.0
- Binet4.0
- Cinet.6
- Dinet6.0
- Einet.3
How the community answered
(48 responses)- A88% (42)
- B8% (4)
- C4% (2)
Why each option
Junos devices maintain several default routing tables, each serving specific purposes for different address families and MPLS operations.
`inet.0` is the default routing table for IPv4 unicast routes in Junos, storing routes learned from various protocols and configurations. This table is central for standard IPv4 forwarding decisions.
`inet4.0` is not a standard default routing table name in Junos; the correct IPv4 unicast table is `inet.0`.
`inet.6` is not a standard default routing table name in Junos; the correct IPv6 unicast table is `inet6.0`.
`inet6.0` is the default routing table for IPv6 unicast routes in Junos, analogous to `inet.0` but dedicated to IPv6 prefixes. It handles all IPv6 route information.
`inet.3` is a default routing table specifically used for MPLS path information, primarily for resolving RSVP LSPs to their next hops. It enables the creation of MPLS forwarding entries.
Concept tested: Junos default routing tables
Source: https://www.juniper.net/documentation/us/en/software/junos/routing-basics/topics/topic-map/routing-tables.html
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