Based on this interface configuration, what is the expected state of OSPF adjacency?

• A.Full on both routers
• B.not established
• C.2WAY/DROTHER on both routers
• D.FULL/BDR on R1 and FULL/BDR on R2

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Which deployment option of Cisco NGFW provides scalability?

• A.tap
• B.inline tap
• C.high availability
• D.clustering

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Drag and drop the characteristics from the left onto the routing protocols they describe on the right.

Correct Answer:

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Which function in handled by vManage in the cisco SD-WAN fabric?

• A.Establishes BFD sessions to test liveliness of links and nodes
• B.Distributes policies that govern data forwarding
• C.Performs remote software upgrades for WAN Edge. vSmart and vBond
• D.Establishes IPsec tunnels with nodes.

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Which statement about Cisco Express Forwarding is true?

• A.It uses a fast cache that is maintained in a router data plane.
• B.it maintains two tables in the data plane the FIB and adjacency table.
• C.It makes forwarding decisions by a process that is scheduled through the IOS scheduler.
• D.The CPU of a router becomes directly involved with packet-switching decisions.

Correct Answer: B

Cisco Express Forwarding (CEF) provides the ability to switch packets through a device in a very quick and efficient way while also keeping the load on the router's processor low. CEF is made up of two different main components: the Forwarding Information Base (FIB) and the Adjacency Table. These are automatically updated at the same time as the routing table.
The Forwarding Information Base (FIB) contains destination reachability information as well as next hop information. This information is then used by the router to make forwarding decisions.
The FIB allows for very efficient and easy lookups. Below is an example of the FIB table:

The adjacency table is tasked with maintaining the layer 2 next-hop information for the FIB. An example of the adjacency table is shown below:

It uses a fast cache that is maintained in a router data plane' fast cache is only used when fast switching is enabled while CEF is disabled.

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