IP routing practice exam for Cisco CCNA certification

The Cisco CCNA certification requires that you are completely familiar with IP routing. CCNA certification practice exams are a great way to prepare for the Cisco CCNA certification and for jobs that will require you to install, maintain, and configure IP routing on Cisco routers and switches. This free practice exam will help you to know the Cisco IP routing well enough that you can productively apply your Cisco IP routing knowledge to any network. The Cisco CCNA certification is an entry level certification which will equip you for the type of work that requires extensive use of IP routing.

Which type of routing would be more work to maintain, Static, Default, or Dynamic routing?

1. Default
2. Static
3. Dynamic

In order for a router to route packets to a destination network, it must know the destination address, its directly connected neighbor router, the best route to use, and what other piece of information? 

1. All routers in the autonomous system.
2. The full path to the destination.
3. What interface to use to reach a network.
4. The autonomous system number of the destination network.

Which piece of information is replaced at every hop along the path to a destination host?

1. The destination hardware address
2. The source hardware address
3. The source and destination hardware address'.
4. The arp cache entry on the original source.

Type the command that lets you view the known routes the router holds.
Do not abbreviate or capitalize.

Router# 
 

The route type or the method used to learn the route is identified by which column of information that is output by the previous question's command?

1. The left most column of letters
2. The right most column of interfaces.
3. The right most bit.
4. The left most bit.

Default routing is used to route which kind of packets?

1. Those destined for a different subnet.
2. Those destined for a different major classful network.
3. Those destined for networks known to the router.
4. Those destined for networks unknown to the router.

Enter the command that defines the gateway of last resort with interface address 192.168.4.1.
Do not abbreviate or capitalize.

Router#  192.168.4.1
 

On routers with IOS versions earlier than 12.x, which command in addition to the answer for the above question is necessary for default routing.

1. ip subnet zero
2. ip classless
3. ip default routing
4. ip default gateway

What is dynamic routing?

1. The process of being able to allow foreign networks to communicate.
2. All routers on a network constantly updating one central router and accepting master routing tables from it.
3. The process of using protocols to continuously discover network routes and maintain a table of those known routes.

If interior gateway routing protocols are used to communicate within an autonomous system, what type of protocols are used to communicate between autonomous systems?
 

1. Exterior Gateway Protocols
2. Border Gateway Protocols
3. Enhanced Interior Gateway Protocol
4. Open Shortest Path First

The trustworthiness of a route is measured in terms of:
 

1. Metrics.
2. Administrative Distance
3. Bandwidth.
4. Delay.

A routing protocol that bases it's choice on the hop count to a destination network is said to be which type of routing protocol?
 

1. Hybrid.
2. Distance Vector.
3. Link State.

A routing protocol that bases it's choice on the metrics to a destination network is said to be which type of routing protocol?
 

1. Hybrid.
2. Distance Vector.
3. Link State.

What best describes distance vector routing protocol behaviours?

 
1. RIP is not a distance vector routing protocol.
2. Distance vector routing protocols understand the entire topology of the internetwork.
3. Distance vector routing protocols do not exchange entire routing tables
4. Distance vector routing protocols exchange entire routing tables.

A static route has an administrative distance of:
 

1. 1.
2. 0.
3. 5.
4. 120.

RIP has an administrative distance of:

1. 100.
2. 120.
3. 110.
4. 90.

IGRP has an administrative distance of:

1. 100.
2. 120.
3. 110.
4. 90.

Based on using hop count as the deciding factor in a network with duplicate links of equal hop count, which link would have the best cost if one were a T1 and the other a dedicated 56k link?
 

1. The 56k link.
2. The T1.
3. They would be of equal cost.
4. The bandwidth would be divided proportionately.

Convergence time is defined as:

1. The time required for packets that have traversed 2 or more load balanced links to arrive at a common juncture.
2. The time required for all routers in an internetwork to begin updating their routing tables.
3. The time required for all routers in an internetwork to have collectively finished updating their routing tables.

An unlimited number of hops that a packet can traverse while traveling to its destination is known as;

 
1. infinite metric routing.
2. Gateway router discovery.
3. route discovery.
4. Counting to infinite.

Routing updates are flooded out all interfaces to neighboring routers. Why would a router choose not to send its update out thru one specific interface?

1. Its had received an update from the neighboring router directly connected to that interface.
2. It had received an update from the directly connected neighboring router that one of its networks listed in its table was down.
3. It had a holddown timer on a poisoned route that was previously listed as accessible thru that interface.

Under what circumstances does a holddown timer start on a route to a previously accessible network?

1. A router received an update stating that a previously downed route is now up.
2. A router received an update stating that a network is down for which it holds a route in its table.
3. A route has been flapping and the router needs to prevent updates from propogating to other routers.
4. One of the router's local subinterfaces has gone down.

Under what circumstances is a holddown timer removed before it expires?

1. The router receives an update that shows the affected route as being restored with a better metric.
2. The router receives an update that shows the affected route as being restored with a higher metric.
3. The route that was flapping is now up.
4. The router received an update stating that a previously downed route is now up.

When a router sends an update to another router containing information about a route being down, this is known as;

1. routing updates
2. going into holddown
3. route poisoning
4. poison reverse

When a router acknowledges receipt of an update regarding a route being down, this is known as;

1. route poisoning
2. poison reverse
3. going into holddown
4. routing updates

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