April 20, 2023 RE Meyers, Ms.Ed., CCAI

CCENT 640-822 ICND1 Exam Topics ReviewCCENT 640-822 ICND1 Exam Topics Review

Describe the Operation of Data Networks:

Network Diagrams and Data Paths

April 20, 2023

DisclaimerDisclaimer

This review is for the exclusive non-profit use by Cisco Academy instructors and students only!Contents of this review were derived from the following

sources under the doctrine of US copyright “Fair Use” section 107:

• Cisco Networking Academy Curricula: Discovery Networking for Home and Small Businesses version 4.x

• Interactive Course Guide, Cisco Learning Institute• CCENT/CCNA ICND 1 Official Exam Certification Guide, 2nd ed.

by Wendell Odom, Cisco Press, 2008; ISBN1-58720-182-2• Cisco Learning Network

https://learningnetwork.cisco.com/docs/DOC-4987• Other references footnoted in individual slide notes area.

April 20, 2023

Error ReportingError Reporting

Please report any errors in this presentation to:remeyers@mail.wvu.eduDon’t rant! Let me know where I made a mistake so it can

be fixed. Feel free to modify this presentation to suit your needs.

• Please remove the WVU master and my name from your edited presentation to protect WVU’s logo acceptable use policy.

April 20, 2023

CCENT Exam TopicsCCENT Exam Topics

 Describe the operation of data networksInterpret network diagramsDetermine the path between hosts across a networkDifferentiate between LAN/WAN operation and features

https://learningnetwork.cisco.com/docs/DOC-4987

April 20, 2023

Physical Network TopologyPhysical Network Topology

A representation of the physical interconnections of the elements of a computer network

April 20, 2023

Logical TopologyLogical Topology

Groups hosts by how they use the network, not by where they are physically located. Host names, addresses, group information and

applications can be recorded on the logical topology map

April 20, 2023

Local Area NetworkLocal Area Network

LANs were defined as small networks that existed in a single physical location

April 20, 2023

Local Area NetworkLocal Area Network

The definition of LAN has evolved May include interconnected local networks consisting of

many hundreds of hosts, installed in multiple buildings and locations under one administrative control.

April 20, 2023

Count the LAN’sCount the LAN’s

1

23

4

April 20, 2023

Count the LAN’sCount the LAN’s

1

April 20, 2023

Ethernet Data Path Between Hosts on a LAN HubEthernet Data Path Between Hosts on a LAN Hub

When a host on an Ethernet network communicates, it sends frames containing:Its own MAC address as the source The MAC address of the intended recipient

April 20, 2023

Ethernet Data Path Between Hosts on a LAN SwitchEthernet Data Path Between Hosts on a LAN Switch

A switch accepts and decodes frames to read the physical (MAC) address portion of the messageUsing a MAC table, it sends the frame out only through

the port where the destination MAC address is located.

April 20, 2023

Wide Area NetworkWide Area Network

WANs are used to connect LANs and other types of networks together over a broad area Link across metropolitan, regional, or national boundaries

April 20, 2023

WANWAN

Can be connected viaInternetLeased lines

April 20, 2023

WAN ConnectivityWAN Connectivity

April 20, 2023

WAN Connectivity BandwidthWAN Connectivity Bandwidth

April 20, 2023

WAN Traffic Flow: E-mailWAN Traffic Flow: E-mail

April 20, 2023

Internet Internet

Tier 1 ISPs Huge organizations that physically connect directly with

each other through private peering

Tier 2 ISPsCan also be very large, even extending across several

countries, but very few have networks that span entire continents or between continents

Tier 3 ISPs Generally found in major cities and provide customers

local access to the Internet..

April 20, 2023