20 Questions
What is the purpose of the passive-interface command in RIP configuration?
Preventing the transmission of routing updates through a router interface
In RIP, how is load balancing achieved over multiple paths with equal cost?
By preferring paths with lower hop count
What happens when a router learns multiple routes to a specific network with the same administrative distance and cost in RIP?
Load balancing can occur among the equal-cost paths
What is the limit imposed by Cisco IOS on the number of equal cost routes allowed in a routing table?
6 equal cost routes
How many equal-cost paths can RIP load balance over by default?
4 paths
What is the purpose of defining a maximum count in routing protocols?
To permit the routing loop to continue until the metric exceeds its maximum allowed value
How does split-horizon help in eliminating routing loops?
By preventing routers from sending information about a network back to the router from which the update originated
Which mechanism ensures that all routers know of failed routes before any holddown timers can expire?
Triggered updates with route poisoning
What problem do holddown timers help to avoid in routing protocols?
Count to infinity problem
In the context of routing loops, what does 'route poisoning' with a metric of 16 aim to achieve?
Making all routers aware of failed routes quickly
What does the 'no ip route-cache' command do?
Disables fast switching or per-packet load balancing
In Cisco's IGRP routing protocol, which variables can be used to determine a composite metric?
Load and Delay
What problem was Cisco's IGRP routing protocol designed to solve in the early 1980s?
Problems associated with RIP in routing datagrams
When using per-destination load balancing, what happens to packets bound for the same host?
They will always take the same path
How can you enable fast switching in a Cisco router?
Use the default settings
How does RIP perform load balancing over multiple paths with equal cost?
RIP performs 'round robin' load balancing by choosing up to four equal-cost paths based on hop count.
Explain the mechanism of load balancing across multiple paths in RIP when a router learns multiple routes to a specific network.
In RIP, when a router learns multiple routes to a network with the same administrative distance and cost, the route with the lowest cost will be chosen. If the costs are the same, load balancing can occur.
How can a router in RIP be configured to load balance over more than four equal-cost paths?
To configure a router in RIP to load balance over more than four equal-cost paths, the 'maximum-paths' command can be used in the router configuration mode.
What is the role of the passive-interface command in preventing routing updates in RIP configuration?
The passive-interface command prevents the transmission of routing updates through a router interface, while still allowing the router to listen and use routing updates from that neighbor.
How does RIP handle load balancing for IP packets across multiple paths when using per-packet load balancing?
In RIP, per-packet load balancing ensures that packets are distributed across multiple paths in a sequential order, sending packets one after the other over each path.
This quiz covers the basic concepts of the Routing Information Protocol (RIP) and its IPv6 version, RIPng. Topics include configuring RIP, preventing routing updates through an interface, and load balancing with RIP over multiple paths.
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