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A+ Essentials--Connecting Computers
Chapter 16 comptia A+ Essentials manual
16
Computer Science
Not Applicable
12/11/2009

Additional Computer Science Flashcards

 


 

Cards

Term
What are the two types of networks?
Definition

Peer to Peer

 

Client Server

Term
What are examples of node
Definition

Computer

 

Router

 

Printer

 

Sensing device

 

Video Camera

 

Controller

Term

Define Peer To Peer Network model

NOTE-Peer to Peer is also referred to as Workgroups

Definition

Authentication is done on each computer

 

User controls resources to own pc

 

Administration is done at each pc

 

its supported by WinNt,2000, and XP

 

Recommended for small workgroups not to exceed 10

 

Common connection methods are

Wireless

Wired

Term
Whats the difference between peer to peer networks on operating system 3x & 98 then NT,2000,XP.
Definition
Security
Term
What is the Acronym SAM and what does it do
Definition
SAM-Security Access manager provides authentication to local machine.
Term
What are security principals
Definition

User

 

computer

 

security principals have to have a valid account and can be managed on a domain controller.

Term
what needs to be installed on a XP machine to connect to a Novell login server.
Definition
Client 32 or Microsoft client for netware.
Term
What is UTP & STP wires
Definition

UTP=Unshielded Twisted Pair

 

STP=Shielded Twisted Pair

 

Both have 4 wires

 

Each set of 2 wires are twisted then both sets are laying together in a sleeve. With shielded There is braided foil membrane.

Term
what is the purpose of STP
Definition
To shield against electomagnetic interference and crosstalk. Used in Token Ring networks.
Term
What are the catagories of UTP cables and speeds.
Definition

CAT3-10Mbps

 

CAT5-100Mbps

 

CAT5e-1Gbps

 

CAT6-Up to 2.5Gbps

Term
How far apart should a UTP CAT5 cable be from electrical lines to escape there electromagnetic fields
Definition
1 foot
Term
What is Composit Cable
Definition
More then 1 type of Cable that runs in the same pvc jacket.
Term
What is Plenum Wiring
Definition
cable with teflon covering that is more resistance to fire, produces less smoke, and fewer noxious fumes.
Term
What are the types of coax cables
Definition

RG-58-thinnet

rg-58/u means 53.5 ohms

rg58 a/u means 50 ohms

can carry signals up to 185 meters

use for netoworks

 

RG-8

Thicknet

50 ohm

Carry signals up to 500 meters

 

RG-11

Thicknet

75 ohms

Carry signals up to 500 meters

used for Network backbones instead of drops to nodes.

 

RG59

Thicknet

75 ohms

used for Cable television

 

RG-6

Thicknet

75ohms

used in surveillance cameras

 

Term
What Thinnet cable connectors
Definition

BNC barrel connector

T-connectors for networks

Term
What are thicknet connectors
Definition
Vampire Tap
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