READ Free Dumps For Cisco- 400-101
| Question ID 18533 | Which two mechanisms provide Cisco IOS XE Software with control plane and data plane
separation? (Choose two.)
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| Option A | Forwarding and Feature Manager
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| Option B | Forwarding Engine Driver
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| Option C | Forwarding Performance Management
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| Option D | Forwarding Information Base
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| Correct Answer | A,B |
Explanation Explanation: Control Plane and Data Plane Separation IOS XE introduces an opportunity to enable teams to now build drivers for new Data Plane ASICs outside the IOS instance and have them program to a set of standard APIs which in turn enforces Control Plane and Data Plane processing separation. IOS XE accomplishes Control Plane / Data Plane separation through the introduction of the Forwarding and Feature Manager (FFM) and its standard interface to the Forwarding Engine Driver (FED). FFM provides a set of APIs to Control Plane processes. In turn, the FFM programs the Data Plane via the FED and maintains forwarding state for the system. The FED is the instantiation of the hardware driver for the Data Plane and is provided by the platform. Reference: http://www.cisco.com/c/en/us/products/collateral/ios-nx-os-software/ios-xe- 3sg/QA_C67-622903.html
| Question ID 18534 | How many hash buckets does Cisco Express Forwarding use for load balancing?
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| Option A | 8
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| Option B | 16
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| Option C | 24
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| Option D | 32
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| Correct Answer | B |
Explanation Explanation: In order to understand how the load balance takes place, you must first see how the tables relate. The Cisco Express Forwarding table points to 16 hash buckets (load share table), which point to the adjacency table for parallel paths. Each packet to be switched is broken up into the source and destination address pair and checked against the loadshare table. Reference: http://www.cisco.com/c/en/us/support/docs/ip/express-forwarding-cef/18285- loadbal-cef.html