somewhere in the todd lammle's CCNA 640-801 book...i found a review question :what does EIGRP use to deliver routing information throughtout the internetwork?A. DUALB. RTPC. RTPMD. PDM.In answer section, I found answer "A"- Dual is correct. But my qu...

hi,I am not clear the difference between RIP's Invalid timer and holddown timer . I am following todd lammle's ccna book as my preparation. and the invalid timer and holddown is appearing same to me. plz help me to get it clear.Thanks

Well, I know a switch breaks up collusion domain...but what happens when multiple pc wants to contact with a particular pc on a switch simultaneously, how the collusion is managed? Is there any time sharing or queuing of frame take place on switch po...

I come to know from this site : http://www.networknewz.com/2004/0317.html that vtp pruning restricts unncessary packet travalling accross trunk link. This is good, but imagine a situation where;|----------|switch -1 (marketing and salse VLAN)|-------...

hi,I want to know why an unicast is a category of broadcast? Why its not a broadcast frame itself?As we know there are 4 types of broadcast:1.layer 2 broadcast2.layer 3 broadcast3.unicast4.multicastAs i know when a pc wants to contact other pc on loc...