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Questions and Answers
Which approach to implementing routing functionality has been the traditional approach adopted by routing vendors in their products?
Which approach to implementing routing functionality has been the traditional approach adopted by routing vendors in their products?
- A combination of both approaches
- A physically separate, remote controller computing and distributing the forwarding tables to be used by each and every router
- None of the above
- Each router having a routing component that communicates with the routing component of other routers (correct)
What is the remote controller in the alternative approach shown in Figure 4.3 responsible for?
What is the remote controller in the alternative approach shown in Figure 4.3 responsible for?
- Communicating with the data plane components of the routers
- Computing and distributing the forwarding tables to be used by each and every router (correct)
- Performing forwarding only
- None of the above
What is software-defined networking (SDN)?
What is software-defined networking (SDN)?
- A network where the controller that computes forwarding tables and interacts with routers is implemented in software (correct)
- None of the above
- A network where the forwarding tables are manually configured by humans
- A network where the controller that computes forwarding tables and interacts with routers is implemented in hardware
Which of the following is a key difference between the routing functionality approach shown in Figure 4.2 and the approach shown in Figure 4.3?
Which of the following is a key difference between the routing functionality approach shown in Figure 4.2 and the approach shown in Figure 4.3?
What is the control-plane approach shown in Figure 4.3 at the heart of?
What is the control-plane approach shown in Figure 4.3 at the heart of?
What is a benefit of implementing a remote controller in the control-plane approach shown in Figure 4.3?
What is a benefit of implementing a remote controller in the control-plane approach shown in Figure 4.3?
Which term is used to refer to a device that transfers a packet from input link interface to output link interface, according to values in a packet’s header fields?
Which term is used to refer to a device that transfers a packet from input link interface to output link interface, according to values in a packet’s header fields?
In which section of the chapter will you find information about the internal hardware operations of a router?
In which section of the chapter will you find information about the internal hardware operations of a router?
What is the difference between link-layer switches and routers?
What is the difference between link-layer switches and routers?
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