5.04-4. Bellman Ford Algorithm - a change in DV (1, part 4). Consider the network below, and suppose that at t=0, the link between nodes b and c goes down. And so at t=0, node b recomputes its distance vector (DV) and sends out its new DV (as needed). At t=1 this new DV is received at b's neighbors, who then perform their calculation and send out their new DVs (as needed); these new DVs arrive at their neighbors at t=2, and so on. What is the last time in this network at which a DV calculation will take place as a result of the link change at t=0? a 1 1 3 at t=0 the link (with a cost of 1) between nodes b and c goes down 2 8 1 6 b compute 1 1 h 1 1 1 an essentially infinite amount of time; this is the count-to-infinity problem

5.04-4. Bellman Ford Algorithm - a change in DV (1, part 4). Consider the network below, and suppose that at t=0, the link between nodes b and c goes down. And so at t=0, node b recomputes its distance vector (DV) and sends out its new DV (as needed). At t=1 this new DV is received at b's neighbors, who then perform their calculation and send out their new DVs (as needed); these new DVs arrive at their neighbors at t=2, and so on. What is the last time in this network at which a DV calculation will take place as a result of the link change at t=0? a 1 1 3 at t=0 the link (with a cost of 1) between nodes b and c goes down 2 8 1 6 b compute 1 1 h 1 1 1 an essentially infinite amount of time; this is the count-to-infinity problem

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

5.04-4. Bellman Ford Algorithm - a change in DV (1, part 4). Consider the network
below, and suppose that at t=0, the link between nodes b and c goes down. And so at
t=0, node b recomputes its distance vector (DV) and sends out its new DV (as
needed). At t=1 this new DV is received at b's neighbors, who then perform their
calculation and send out their new DVs (as needed); these new DVs arrive at their
neighbors at t=2, and so on. What is the last time in this network at which a DV
calculation will take place as a result of the link change at t=0?
a.
1
1
at t=0 the link (with a cost of
1) between nodes b and c
goes down
2
8
1
6
b-
compute
1
e
1
-h-
1
1
an essentially infinite amount of time; this is the count-to-infinity problem
1
Not quote. This answer is incorrect.

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