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Routing Algorithm Properties Quiz

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Questions and Answers

What are the desirable properties in a routing algorithm mentioned in the text?

Efficiency, reliability, adaptability, simplicity

Optimality, redundancy, scalability, adaptability

Speed, flexibility, fairness, security

Correctness, simplicity, robustness, stability (correct)

In computer networks, what distinguishes an adaptive routing algorithm from a non-adaptive routing algorithm?

Adaptive algorithms base routing decisions on topology and traffic. (correct)

Non-adaptive algorithms have fewer parameters.

Non-adaptive algorithms update routing decisions based on traffic.

Adaptive algorithms only work for small networks.

What are the main parameters considered in an adaptive routing algorithm according to the text?

Packet size, error rate, transmission speed

Bandwidth, latency, protocol type

Firewall settings, DNS resolution, proxy server configuration

Hop count, distance, estimated transit time (correct)

What is the main purpose of a routing algorithm at a router?

To decide which input line an incoming packet should go to Signup and view all the answers

What does the optimality principle state about finding better routes between routers?

The optimal path from one router to another remains optimal when finding better routes Signup and view all the answers

What is the basic concept behind the Shortest Path Routing algorithm mentioned in the text?

Finding the shortest path between nodes based on various metrics Signup and view all the answers

What is the purpose of the virtual layer IPSec in a connectionless network?

Change the connectionless service to a connection-oriented service Signup and view all the answers

In a subnet using datagrams internally, why must routing decisions be made anew for every arriving data packet?

The best route may have changed since the last packet Signup and view all the answers

What distinguishes session routing in virtual circuit-based subnets?

Routing decisions are made only when setting up a new virtual circuit Signup and view all the answers

What process occurs inside a router when handling each arriving packet in a network?

Looking up the outgoing line in routing tables for packet forwarding Signup and view all the answers