QUIZ COMPNET REVIEWER

MAC

media access control

VLAN

virtual local area network

mdix

medium-dependent interface crossover

CEF

Cisco Express Forwarding

FIB

Forwarding Information Base

HTTPS

HyperText Transfer Protocol Secure

EIGRP

Enhanced Interior Gateway Routing Protocol

SVI

Switched Virtual Interface

OSPF

Open Shortest Path First

IGRP

Interior Gateway Routing Protocol

HWIC

High Speed WAN Interface Card

POST

Power-on self-test

3 uses of static routes

• Smaller networks that are not expected to grow  

• Routing to and from stub networks 

  • Stub network accessed by a single route and has one neighbor 

  • 172.16.3.0 is a stub network  

• A single default route to represent a path to any network not found in the routing table.

  • Use default route on R1 to point to R2 for all other networks

Consideration when selecting switches

• Cost 

• Port Density 

• Power 

• Reliability 

• Port Speed 

• Frame buffers 

• Scalability

Configuring Basic Switch Management Access with IPv4 (cisco switch ios commands)

• configure terminal

• interface vlan 99

• ip address 172.17.99.11 255.255.255.0

• no shutdown

• exit

• ip default-gateway 172.17.99.1

• end

• copy running-config startup-config

Configure Switch Ports at the Physical Layer (cisco switch ios commands)

Configure Switch Ports Auto-MDIX

Configure Switch Ports Verifying Switch Port Configuration

Error checking

After receiving the entire frame, the switch compares the frame-check-sequence (FCS) value in the last field against its own FCS calculations. Only error-free frames are forwarded

Access layer

provides network access to the user.

Distribution layer

interfaces between the access layer and the core layer. Provides functions such as:

• aggregating Layer 2 broadcast domains and Layer 3 routing boundaries.

• providing intelligent switching, routing, and network access policy functions to access the rest of the network.

Core layer

is the network backbone. It provides fault isolation and high-speed backbone connectivity.

Automatic buffering

ingress port buffering provides the flexibility to support any mix of Ethernet speeds

Router

Connects one network to another network. Determines the best route to the destination before forwarding traffic to the next router along the path. Responsible for routing traffic between networks.  Routing table used to determine the most efficient path to reach the destination.

Super route

a network address with a mask less than the classful mask, for example, a summary address.

Physical topology

arrangement of the cables, network devices, and end systems; it describes how the network devices are actually interconnected with wires and cables

Logical topology

describes the path over which the data is transferred in a network and how the network devices appear connected to network users

Network route

a network route that has a subnet mask equal to that of the classful mask.