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Cisco > CCNA > Ron's QoTD - 4/22

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Author Ron's QoTD - 4/22
rsteedma
Cisco Networking "Guru"




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Question Ron's QoTD - 4/22

By default, which parameter(s) will IGRP use to calculate the metric for each route?

a. Hop Count
b. Delay
c. Load
d. MTU
e. Reliability
f. TTL
g. Variance

-- Good Luck! --

Cheers,
Ron

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Old Post 04-23-02 06:25 AM
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haseeb_eng
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Arrow

IGRP uses Bandwidth & Delay by default to calculate metric

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rsteedma
Cisco Networking "Guru"




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Cool Very Good. :)

Very Good.

You could also configure the router to take Load and Reliability into account - but that's not the default setting.

Cheers,
Ron

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haseeb_eng
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Arrow

plus MTU

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Old Post 04-24-02 06:06 AM
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rsteedma
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Exclamation MTU is not part of the metric.

The Sybex book is wrong on that point.

The IGRP metric is only affected by Bandwidth, Delay, Load, and Reliability.

From the Cisco website:

"Although they are not used as part of the metric, two addition pieces of information are passed with it: hop count and MTU."

http://www.cisco.com/warp/public/103/5.html

Cheers,
Ron

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Old Post 04-24-02 07:12 AM
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haseeb_eng
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Arrow

MTU is the last parameter of igrp . hop count is used for rip not for igrp .

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Mat P
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Re: MTU is not part of the metric.

quote:
Originally posted by rsteedma

From the Cisco website:

"Although they are not used as part of the metric, two addition pieces of information are passed with it: hop count and MTU."

http://www.cisco.com/warp/public/103/5.html


Read the link Haseeb.

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marathoner
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You gave the choices as
a. Hop Count
b. Delay
c. Load
d. MTU
e. Reliability
f. TTL
g. Variance



quote:
Originally posted by haseeb_eng
IGRP uses Bandwidth & Delay by default to calculate metric


This is what I learned, but Bandwidth is not one of the choices. So technically the only right answer on that list is b?

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Old Post 04-25-02 10:02 PM
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Mat P
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Smile

Well spotted

Good example of not reading too much into questions.

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Old Post 04-25-02 10:22 PM
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marathoner
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a tactical thing...

it's strictly a tactical thing, but whenever a practice exam lets you choose > 1 choice, your natural tendency is to assume there's >1 right answer, otherwise they would have made it a radio button question. And there almost always is but nowhere is it decreed that it HAS TO BE!!!

Of course multiple multiple choice questions just decrease your odds of guessing it right: instead of a 1/n chance you now have odds 1/(2^n -1) we assume you have to set at least one bit in the answer, -- no zero subnet hehe.....

Just another trick. Thanks Ron! Don't be fooled.

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