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JN0-102 · Question #154
JN0-102 Question #154: Real Exam Question with Answer & Explanation
The correct answer is A. It uses ASICs for increased performance.. The forwarding plane leverages Application-Specific Integrated Circuits (ASICs) to achieve high-speed, line-rate packet forwarding performance. These specialized hardware components are crucial for efficient data plane operations.
Junos OS Fundamentals
Question
Which statement is true about the forwarding plane?
Options
- AIt uses ASICs for increased performance.
- BIt is the intelligence of the platform.
- CIt maintains the routing tables.
- DIt is based on an x86 architecture.
Explanation
The forwarding plane leverages Application-Specific Integrated Circuits (ASICs) to achieve high-speed, line-rate packet forwarding performance. These specialized hardware components are crucial for efficient data plane operations.
Common mistakes.
- B. The Routing Engine (RE) is considered the 'intelligence' of the platform, as it handles routing decisions, protocol processing, and system management, while the forwarding plane executes those decisions.
- C. The Routing Engine (RE) maintains the primary routing tables, then compiles and sends a copy of the forwarding table (derived from the routing tables) to the forwarding plane.
- D. While the Routing Engine (RE) might be based on an x86 architecture, the forwarding plane primarily relies on specialized ASICs, not general-purpose x86 processors, for its core packet forwarding tasks.
Concept tested. Forwarding plane hardware - ASICs
Topics
#forwarding plane#ASICs#performance
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