Which of the following are the distance-vector routing protocols? Each correct answer represents a complete solution. Choose all that apply.

The correct answer is C. IGRP D. RIP. IGRP (C) and RIP (D) are distance-vector protocols because they advertise routing updates by sharing their entire routing table with directly connected neighbors, using metrics like hop count (RIP) or a composite metric (IGRP) to determine the best path - without any knowledge…

Network Security Controls, Protocols, and Devices

Question

Which of the following are the distance-vector routing protocols? Each correct answer represents a complete solution. Choose all that apply.

Options

AIS-IS
BOSPF
CIGRP
DRIP

How the community answered

(57 responses)

A
4% (2)
B
7% (4)
C
89% (51)

Explanation

IGRP (C) and RIP (D) are distance-vector protocols because they advertise routing updates by sharing their entire routing table with directly connected neighbors, using metrics like hop count (RIP) or a composite metric (IGRP) to determine the best path - without any knowledge of the full network topology.

OSPF (B) and IS-IS (A) are both link-state protocols: instead of sharing routing tables, they flood the network with link-state advertisements (LSAs/LSPs), allowing each router to build a complete map of the topology and run Dijkstra's shortest-path algorithm independently.

Memory tip: Think "DV = Dumb & Simple, LS = Smart Map." Distance-vector routers only know what their neighbors tell them (like getting directions by word of mouth), while link-state routers each hold a full map. RIP and IGRP are the classic "old-school" protocols on this list - if it's old and simple, it's likely distance-vector.

Topics

#routing protocols#distance-vector routing#RIP#IGRP

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