JN0-102 · Question #93
Which two statements are true regarding routing tables? (Choose two.)
The correct answer is B. Devices running the Junos OS can accommodate multiple routing tables. C. Information learned from routing protocols is stored in the routing table.. Junos OS supports multiple routing tables, and these tables store essential routing information, including details learned from various routing protocols.
Question
Which two statements are true regarding routing tables? (Choose two.)
Options
- AThe routing table is populated by the forwarding table.
- BDevices running the Junos OS can accommodate multiple routing tables.
- CInformation learned from routing protocols is stored in the routing table.
- DThe primary routing table for IPv4 unicast routes is inet.4.
How the community answered
(62 responses)- A3% (2)
- B89% (55)
- D8% (5)
Why each option
Junos OS supports multiple routing tables, and these tables store essential routing information, including details learned from various routing protocols.
The routing table (RIB) determines the best paths, which then populate the forwarding table (FIB), rather than being populated by it.
Junos OS devices are architecturally designed to accommodate multiple routing tables, enabling flexible network segmentation and specialized routing contexts like routing instances.
Routing protocols, such as OSPF, BGP, and IS-IS, are responsible for dynamically exchanging and populating network reachability information directly into the device's routing table (RIB).
The primary routing table for IPv4 unicast routes in Junos OS is inet.0, while inet.4 is specifically used for MPLS routes.
Concept tested: Junos routing tables and their purpose
Source: https://www.juniper.net/documentation/us/en/software/junos/routing-basics/topics/topic-map/routing-tables.html
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