Net+ Class Wednesday 4/07/10

NAT (Network Address Translation)
• Security
• Cost

Attack
• Man in the middle

3 forms
• Static- has to change each one.
• Dynamic
• Port PAT(Port Address Translation p.227)

CISCO
• Inside --- LAN
• Outside --- LAN
• Inside --- Local
• Outside --- Local
• Inside Global --- WAN IP address
• Outside Global --- WAN IP address

Net+ Class Wednesday 3/24/10

Agenda Loading a small business server.

Standard Edition
up to 3 users
Less features
No
No


Small Business Edition
75 users
More features
Email
SQL


Installing Small Business Edition is similar in installing XP operating system on a computer.
Microsoft recommends two partitions.

F.Y.I.- workgroups = peer-to-peer.

Net+ Class Wednesday 3/17/10

Agenda Controlling another computer
• We use software that would allow on computer to take control of another computer action/mouse using VNC software.
• One would become host/master the other is configure to be the slave.
Note: when wiring switch to switch, use a crossover cable. Router to router is a straight thru cable

Net+ Class Wednesday 3/10/10

Agenda Routing (Routers)

• IP’s can be public/private
• 3 kinds of connection
o Direct Connection
o Static
o Dynamic

• 2 types of Dynamic protocol
o Link State
o Distance Vector
 RIP1
 RIP2
 BGP

What is the following:
• NAT
• PAT
• SNAT

Write a paper with the following requirement (APA).
• Title page
• Distance Vector
o RIP
o RIP2
o BGP

• Link State
o IEGRD
o OSPF
o ISIS

• Conclusion
• Reference page (4) textbook equal 1

A+ Class Tuesday 4/12/10

Today’s Agenda Os utilities and Troubleshooting Issue

Defrag:
• What is the purpose
• Where is it found
• Difference from XP and Vista
Disk Management
Troubleshoot:
• Chkdsk command
MSconfig:
• Startup tab
• Disable
Note:
• Boot manager will replace any corrupted file
• Chkdsk try to repair any corrupt file (page 884)
• Do not add toolbars, take too long to load

A+ Discussion Board Week Displays

Displays come in three types:
• Projectors
• CRT
• LCD
LCD:
• Resolution
o XGA
o SXGA+
o UXGA
o WUXGA
• Contract ratio
• Native resolution
Connector types:
• VGA
• HDMI
• S-Video
• Component/RGB
• DVI pin compatibility
Setting:
• Refresh rate
• Resolution
• Multi-monitor
• Degauss

A+ Class Thursday 4/08/10

Today’s Agenda General Information on laptops and desktop
a. Laptop vs. Desktops.
SPEED slower faster
COST more less
1. Storage (old)
a. Floppy 5.25
b. Diskette 3.25
2. Input
• Keyboard
o Function keys
• Trackball
• Touchpad
• Point stick
• Touch screen
3. expansion slots
• PCMCIA
• Express Card
• Mini PCI & Mini PCIe
• USB ports
4. Docking Station
5. Notebook Batteries
• Nickel-Cadmium (NiCad)
• Nickel-Metal Hydride (NiMH)
• Lithium Ion (Li-Ion)
• Feul cell

A+ Class Tuesday 4/06/10

A+ Class Tuesday 4/06/10
Today’s Agenda Netbook (Chapter 4, page 173).
• Netbook purpose; email, internet, word-processor
• Laptop vs. Desktops.
• portability
• cost
• performance
• expandability
• quality of construction
• Laptop case
 display usually LCD
 case frame
 case
• Parts of Laptop
• Case
• Motherboard
• Processor
 Streamline connection to the motherboard
 Lower voltage and clock speed
 Active sleep
• Memory
 SODIMM
 MicroDIMM – 172 pins DDR – 214 pin DDR

A+ Class Thursday 3/25/10

Today’s Agenda Laptops (Chapter 4, page 173).
1. Laptop vs. Desktops.
o cases
o motherboard
o processor
o memory
 SODIMM
 MicroDIMM
o Storage
 Primary
 Auxiliary
o Input Devices
 Keyboard
 Trackball
 Touchpad
 Point Stick
 Touchscreen
o Expansion Buses and Ports
o Docking Station
o Power System
 batteries
o fusing
2. Discuss printer sharing.

A+ Class Tuesday 3/23/10

Today’s Agenda Review Laser Printers (page 217 – 227).
1. Electophotographic (EP) Print Process.
• The six steps.
o cleaning
o charging
o writing
o development
o transferring
o fusing
2. Discuss printer sharing.

A+ Class Thursday 3/18/10

Today’s Agenda Laser Printers (Installing and Configuring Printers).
1. Install and configure printers.
• Differentiate between printer types.
o Laser
o Inkjet
o Thermal
o Impact
• Local vs. Network Printers
• Printer drivers (compatibility)
• Consumable.

A+ Class Tuesday 3/16/10

Today’s Agenda Remote Login.
1. Go online with your group and find out how to setup a remote connection.
2. Create a peer-to-peer network with remote connection into computer ‘A’ to ‘B’.
3. Connect to the other group computer to peer-to-peer and remote into it.

Diagram:

A+ Class Thursday 3/11/10

Today’s Agenda.
Discuss cable distance table 10.2
IP address Class page 507
IEEE Standard page 498

A+ Class Tuesday 3/09/10

Agenda Chapter 10.
Today, we viewed the conceptual model of the various networks.
• WAN
• LAN
• STAR
RING
MESH
POINT-2-point
The different between operating system;
• XP home edition
• XP Professional
XP Home Ed. = peer-to-peer network
XP Professional = (NOS) Network operator system

OSI Model PodCast

A+ Class 02/25/10

PowerPoint topic:

Explain motherboard components, types and feature

• PATA

1. IDE
2. EIDE

• SATA, eSATA
• Contrast RAID levels 0, 1, 5

Class Assignment

• look up how 2 read the performace monitor and explain your system result
• submit a breif abstract about the different ways to optimize the OS

Ways to increse VM

1. registry
2. msconfig
3. edit
4. clean browser and expand size

A+ Class 02/23/10

Took my quiz from 02/18/10. We were given an assignment to present a powerpoint for 2/25/10. My powerpoint will be over chapter 2, section 1-2.

A+ Class 02/18/10

Missed class due to car accident.

A+ Class 02/16/10

Quiz for 2/18/10.

Topics covered today is over Chapter 2 Storage Devices, Power Supplies and Adapters.

Hard drive consist of:

• cylinders
• tracks
• sectors

Types of storage:

• SSD
• IDE and SATA

What the different of RAID 0,1,5?

A+ Class 02/11/10 Operating Systems

We recap information from class 2/09/10.

Also in class, we took the unit that we have been working on and set it up for dual booth.

• power off/on
• start
• depress the DEL key
• Advance Boot
• Boot Sequence
• CD-ROM
• F10 = SAVE =Y

Net+ Network Security Paper

Net+ Mid-Term 03/03/10 Paper, Power, Test

We had to turn in a paper on network security along with presenting of our power point. Then we preceded with our mid-term.

Net+ Week 5 (Assignment) CSMA/CD and CSMA/CA

Net+ Week 3 (Discussion Board) Subnetting

Net+ Class 02/17/10

Missed class due to car accident. Got notes from Tyrone.

C# Class Monday 2/22/10

Chapter 6 Control Statement Part II.

Control Statement
• For
• Do
• Do…While


Mid-term test is schedule for wed 3/3/10 for C# class.

C# Class Wednesday 2/24/10

New program assignment.

Calculate GPA.
•Get GPA formula
oGPA
oAccumulative GPA

C# Class Wednesday 3/03/10

MID-Term.
Nike console program.
•Infinity amount of inventory
•View totals inventory
• Search ( Style, Color, Price)

C# Class 02/15/10 and 02/17/10

The 15th is a school holiday and I missed classed on the 17th due to being in a car accident.

C# Class - Week 7 - Control Statement

C# Class - Week 5 - Classes, Objects, and Methods.

C# Class - Week 4 - SOA

Net+ Week 4 Subnetting powerpoint

NET+ Subnetting

View more presentations from guest60ba5d.

Net+ Class 02/10/10 Quiz

Today we had a suprise quiz over the OSI model and cabling.

C# Class 02/10/10 Review

We are continuing our discussion on var, list, arrays. These are found in both chapter 8 and 9 of out textbook.

C# Class 02/08/10 Review

A+ Class 02/09/10 Operating Systems

NET+ Week 3 Networking Cables

A+ Class Week 3 Assignment - Memory

NET+ Class 02/03/10 SUBNETTING

Subnetting 101

Object:

• What is subnetting
• Benefits of subnetting
• IP address
• Default Subnet Mask
• Subnet formula

IP

• 32 bits
• has Host bits
• has Network bits

*******EXAMPLE********

IP = 192.168.1.1

Subnet Mask = 255.255.255.0

Class = C

n-bits (network) vs. h-bits (host)

• nnnnnnnn.nnnnnnnn.nnnnnnnn.hhhhhhhh = 32 bits
• nnnnnnnn = 1 octet

CLASS BEGIN RANGE END RANGE

A 0 126

B 128 191

C 192 223

D 224 239 (multasking)

E 240 255 (Science & Research)

LOOPBACK 127 =127.0.0.1

Subnet Formula

Network = 2 * n power (n = number of network bits)

Host = 2 * h power -2 (h = number of host bits)

C# Class 02/03/10 LINQ Continue

Today's assignment was a quiz to write a program that would take information for NBA.COM and arrange it to query for the top twenty player in the league that was in scoring, rebounding, steals and turnovers.

To do assignment, I will require four database to hold each of the respected information.

A+ Class 2/02/10 KEYBOARD AND MORE

Pages covered in todays class is 26 -32.

Subject:

• keyboard connectors
• peripheral ports and connectors
• motherboards
• BIOS and POST
• CMOS and CMOS Battery

Keyboard

• 5 pins DIN
• AT Connector
• PS/2 (6 pins)
• color code is purple

*********************NOTE************************

The most popular connector today for a keyboard is the PS/2, but it is quickly being replace by USB connections.

7 most common type of port on a computer are

• Serial
• Parallel
• USB (Universal Serial Bus)
• Video (channel 3)
• Ethernet
• Sound In/Out
• Game port

1. DA-15F
2. 15 pin female D-subminiature (D-sub)

Motherboard

• header
• peripheral port (direct-solder method)

BIOS and POST

• BIOS: Basic Input/Output System (ROM BIOS Chip)
• contain system software that boots the system and allows the OS to interact with certain hardware in the computer in lieu of requiring a device driver to do so.
• POST: Power -On Self Test ( a series of system check performed by system BIOS and other components, such as the SCSI BIOS and the Video BIOS.

CMOS and CMOS Battery

• date
• time hard drive configuration
• memory
• integrated ports
• boot sequences
• power management

C# Class 02/01/10 LINQ

Todays class covered the following information.

LINQ - Chapter 9 page 405.

LINQ: Language Integrated Query

Used for: to query arrays and Lists, Databases, variable.

Concept:

• pre-package data structures apart of .NET Framework


• reusable


• reliable


• known as list

What do a list

• element are dynamic, increase in size at execution to accommodate additional element

Syntax

• built into C#


• libarays are known as providers

LINQ

• declarative programming


• specifies not the steps necessary to get the result, but rather the conditions that selected element must satify

Example

NET+ WEEK 2 Hubs, Routers and More

A+ Class 1/28/10 Processors

Our discussion today started with the CPU (Central Processing Unit), the two kinds that are out. They are socket and slot.

This is an example of a socket type Intel Category:Pentium III Microprocessor.

This is an example of a slot type 370.



We also got online and compared the prices of the different typ of memory (AMD and Intel). We also spoke about the IDE (integrated drive electronics) primary and secondary channel. The harddrive should always be the primary IDE on the motherboard and the jumper set to master.

As a lab assignment, we had to install (mounted) an optical drive. So set the jumper to slave(2).

NET+ Class 1/27/10 Week #3

Class started with a review of the OSI model.

What is a OSI model? It is a conceptual model of a network.

Who created it? Internation Standard Organization.

**** NOTE**** the ISO members could not come together to agree to make this a standard.

The purpose is to allow the various networks to communicate with each other.

Next, we discuss the various types of topology,connectors and cable.

Topology (5)

1. bus


2. ring


3. star


4. mesh(2)


5. point-2-multipoint

Connectors (3)

1. BNC


2. T-connect


3. F-type

Cable

1. Coaxical


2. Twisted Pair(3)


3. Fiber Optics

Last we cover TIA/EIA wiring code.

Before the end of class. We had to make our own ethernet cable. We require wire stripping tools, two RJ-11 connectors , a crimping tool and the wiring diagram. To test the cable to see if it works. we had to plug one end into the commputer and the other into the network junction block. If done correctly, the bottom of the screen would show network connection.

C# Class 1/27/10 Foreach vs. Counter

Today's discussion was a about the foreach statement. In a nutshell, it is use to write/print/display multiple variables.

The counter statement has a different purpose. The purpose of the counter is to count.

ie. counter++

This is saying that you are adding one to the counter.

The instuctor talked to us about cloud computing. According to Wiki, is Internet - ("cloud") based development and use of computer technology ("computing"). In concept, it is a paradigm shift whereby details are abstracted from the users who no longer have need of, expertise in, or control over the technology infrastructure "in the cloud" that supports them.


Cloud computing describes a new supplement, consumption and delivery model for IT services based on the Internet, and it typically involves the provision of dynamically scalable and often virtualized resources as a service over the Internet.

A+ Class 1/26/10 REVIEW

Todays we had a short class period dues to a guest speaker at the school. So I class time was mostly a review of THURSDAY (1/21/10) class.

*************VERY IMPORTANT ******************

Hard drive is SECONARY STORGE!!!! Do not confuse it as primary storage. Also, there are different types of memory modules.

NET+ Week #2 -- MAN

What is a MAN?


A metropolitan area network (MAN) is a network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network (LAN) but smaller than the area covered by a wide area network (WAN).

A good example of a MAN would be when the Army Record Center on Goodfellow in St. Louis, MO. They was on both side of the street plus all over the backlot area. The WAN portion would be the Record center at both the Goodfellow Center and the page Center.

NET+ Week #2 -- HSSU WAN

This is an example of two different LAN's. One is at the Harris-Stowe State University School of Business, the other is Harris-Stowe State University Main Campus.

NET+ WEEK 2 OSI Model w/. Devices

This is a display of the OSI model with devices at the different layers. Also included on each layer an ideal of what is happening on each of the layers.

A+ Homework Week 2 (Ex: 5.1 pg. 214)

A+ Homework Week 2 (Ex: 3.3 pg. 149)

Please click on the images below to learn about degaussing.