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200-301 V1 Ch03: Intro Routing, WAN

Config Lab: Extended Named ACLs 1

Config Lab: Extended Named ACLs 1

🕔15:05, 1.Oct 2021 Are you comfortable matching packets with extended ACLs? How about with TCP and UDP ports in those ACLs? Here’s a 10-minute lab exercise to practice; all you need is the time and a piece of paper or a place to Read Full Article
A: WAN Basics

A: WAN Basics

🕔09:05, 27.Sep 2018

What happens over an Ethernet WAN link? What Data Link addresses appear in the frame that the routers forward over the WAN? What data link headers exist on the WAN link? What types of cabling must be used? The latest

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Q: WAN Basics

Q: WAN Basics

🕔09:05, 25.Sep 2018

WAN connections span much longer distances than WANs – so what happens in that WAN? Even for CCENT and CCNA, you can understand some of the basic facts about how a WAN service provider builds a WAN connection. This next

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Answer: Predicting ARP Messages 1

Answer: Predicting ARP Messages 1

🕔13:05, 1.Feb 2018

This latest #CCNA / #CCENT question uses a specific scenario: a working ping, a clearing of a switch MAC address table, and a repeat of the ping. The scenario hopes to make stretch a bit and think outside the box.

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Predicting ARP Messages 1

Predicting ARP Messages 1

🕔09:05, 31.Jan 2018

#CCNA candidates learn about ARP early in the ICND1 half of their studies, and it takes just a few minutes to learn the basics. At the same time, people who write CCNA exam questions can ask us about ARP in

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A: Which ARP and Where

A: Which ARP and Where

🕔12:05, 4.Oct 2015

Host A web browsers to server E, which sits on a different subnet. Who ARPs for whom, and where? Check the question, pick your answer, and come back here to check your answer and see the explanation.

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Q: Which ARP and Where

Q: Which ARP and Where

🕔09:05, 1.Oct 2015

Are you an #ARP pretender? ARP is simple. At the same time, ARP can be used as both a testing tool and interview tool determine whether someone really knows how networks work, or if they just read the basics in

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