Tuesday, July 17, 2012

Network hardware what does it do?





Repeater, repeater, repeater...


If your looking to become a network administrator then having a sound foundation is key. A good start to a strong foundation is knowing your hardware. The first question I seem to get is what is the difference between a hub, repeater and switch? A repeater does exactly what its name says. A repeater does exactly what its name says lol. It repeats any electrical signals that come into one port or out its other port. This 
is not the smartest device but it served its purpose.


Hub a bub bub


A hub is typically the least expensive, least intelligent, and least complicated of the three. Its job is pretty simple: anything that comes in one port is sent out to the others. Every computer connected to the hub "sees" everything that every other computer on the hub sees. The hub itself is ignorant of the data being transmitted. For years, simple hubs have been quick and easy ways to connect computers in small networks. The Hub and repeater both work at the Physical layer of the OSI Model, Layer 1.


Switch it up!

Pretty straight forward right? Now time for the very intelligent switch. A switch does essentially what a hub does but more efficiently. How does it do this? By paying attention to the traffic that comes across it, it can "learn" where MAC addresses are. For example, if it sees traffic from computer A coming in on port 2, it now knows that computer A is connected to that port and that traffic to computer A needs to only be sent to that port and not any of the others. The net result of using a switch over a hub is that most of the network traffic only goes where it needs to rather than to every port. On busy networks this can make the network significantly faster and prevent broadcast storms. Another note is that the switch works at the Data-Link layer of the OSI Model, Layer 2.

There are many resources out there to help increase your skill set and knowledge. At Asher College you can get hands on experience attending their Network Clinic. This clinic covers many facets of building a network from scratch all the way up to managing clients. 



CompTIA Network+ certification is the sign of a qualified networking professional.

CompTIA A+ certification validates foundation-level knowledge and skills necessary for a career in IT support. It is the starting point for a career. The international, vendor-neutral certification proves competence in areas such as installation, preventative maintenance, networking, security and troubleshooting. 

CompTIA Security+ certification designates knowledgeable professionals in the field of security, one of the fastest-growing fields in IT. CompTIA Security+ is an international, vendor-neutral certification that demonstrates competency in Network security, compliance and operational security, threats and vulnerabilities and application, data and host security.
For more information about an exciting career in Information Technology please contact Asher College!




Check out this Article About Microsoft Certifications 




Sunday, July 15, 2012

Utilizing Windows 7




Windows 7 features...take advantage of them!


Windows 7 has a lot to offer its users in the way of backup and restore, optimization and performance, and spyware protection. As a user why not take advantage of these awesome features?? People love to go out and purchase the next big thing and since Vista bombed, the birth of Windows 7 made many people very happy. Of course you have Windows 8 right around the corner. However the true Windows 7 user seems to be very loyal to it's Operating system.


So you are a Windows 7 enthusiast and want to make sure you are getting the full bang for your buck. As an IT you know how to optimize every feature and protect against the evils of the outside world but for everyday users that are NOT computer savvy this might be a challenge. A few suggestions are to take a course on it and get up to speed on the wonders of Windows 7. There are wonderful schools out there like Asher College that prepare their students for the challenging world of Information Technology. Another option is finding a talented IT to assist you or taking advantage of community services such as PC Clinic which is a free PC Repair clinic set up by Asher College to help aid in people who need help with the PC. 





Back it up or lose it forever!


Now lets talk about a few features Windows 7 has to offer. If you have important information like documents, music or special pictures of family and friends over the years then backup and restore is a great feature. The average user purchases a computer but never thinks that one day the hard drive will crash and that their world of memories are lost in a split second. Take the time to learn how to do a backup of your precious data or bring it down to PC Clinic located at Asher College on Thursdays with an external hard drive or flash drive and we'll back everything up for you. 


Don't be tricked by fakes. 


Another important feature to utilize that will help protect your computer from adware and spyware as you visit websites is Microsoft Security Essentials. Now the IMPORTANT thing to know is that there are many fake antivirus, malware, and spyware applications out there that get a hold of your computer and hold it hostage until you pay money to have the virus, malware, or spyware removed. The people who make these fake antivirus applications tell you that your PC is infected with fake viruses, when their application is actually the virus that prevents you from removing it. This is a terrible thing!! The worst part of it all is that it will go under the name for example Win 7 Anti-Spyware. This is NOT a Windows product but when users see the name they believe it will fix the issues they are having but in reality it's making it worse and they are paying money for it. NOT NICE AT ALL!! DON'T BE TRICKED BY FAKES!! Microsoft Security Essentials is a Windows antivirus that is free and helps protect your computer in real-time. 


With just a little information whether you are a novice or pro your Windows 7 experience can be filled with happiness and joy! 


MCTS Microsoft Certified Technology Specialist (MCTS) certifications are designed to validate your skills on the features and functionality of Microsoft technologies. 


Microsoft MCITP EA credential is the leading certification for Windows Server 2008, providing widely recognized, objective validation of your ability to perform critical, current IT job roles by using Microsoft technologies to their best advantage.



For more information about an exciting career in Information Technology please contact Asher College!




Saturday, July 14, 2012

Preparing for your Cisco CCNA Exam




Getting prepared for the exciting world of Cisco


If you have a passion for networking and Cisco is the path you're choosing then a quick guide to preparing for the CCNA ICND1 exam is always a plus. The ICND exams cover a variety of topics. The important thing to understand is that having your foundations are a must and will truly help in your success of passing this test. So what are the foundations that will help get you through this very intense exam? First off having a basic knowledge of TCP/IP, routing protocol and spanning trees. Ok so if you are already like what is a spanning tree then its time to delve back into your training books. 

What are some of the resources I can use

There are a lot of resources out there and if you are a student of Asher College then take advantage of the CBTNuggets, virtual sims, supplemental study guides and subnetting lectures. With that said back to basics. I can't stress this enough that when your foundation is strong then your success is greater. Cisco CCNA exams build off one another so it is vital that you live eat and breath binary! The ICND1 questions all have subnetting in one form or another. If you are NOT confident and quick with your subnetting then you will have issues and run out of time. You can also use VLSM which isn't part of the exam but helps strengthen your understanding of subnetting. 

What are the fundamentals that I need to know

The ICND1 exam also includes topics on networking fundamentals; connecting to a WAN; basic security and wireless concepts; routing and switching fundamentals; the TCP/IP and OSI models; IP addressing; WAN technologies; operating and configuring IOS devices; configuring RIPv2, static and default routing; implementing NAT and DHCP; and configuring simple networks.This is why it is so important to be prepared and know your basics!

Network+ covers network technologies, installation and configuration, media and topologies, management, and security. Candidate job roles include network administrator, network technician, network installer, help desk technician and IT cable installer.
Companies such as Dell, HP, Ricoh, Sharp and Xerox recommend or require CompTIA Network+ for their networking technicians. It is a technical prerequisite option for IT technicians seeking to join the Apple Consultants Network, and is recognized by the U.S. Department of Defense.

Cisco CCNA Certified Network Associate (CCNA) validates the ability to install, configure, operate, and troubleshoot medium-size route and switched networks, including implementation and verification of connections to remote sites in a WAN. CCNA curriculum includes basic mitigation of security threats, introduction to wireless networking concepts and terminology, and performance-based skills. This new curriculum also includes (but is not limited to) the use of these protocols: IP, Enhanced Interior Gateway Routing Protocol (EIGRP), Serial Line Interface Protocol Frame Relay, Routing Information Protocol Version 2 (RIPv2),VLANs, Ethernet, access control lists (ACLs).

For more information about an exciting career in Information Technology please contact Asher College!





Friday, July 13, 2012

Information Technology and utilizing Smart Board Technology


The IT WORLD AS WE KNOW IT IS CHANGING

With all the advances in technology it only seems right to incorporate such things as multi campus lectures, conferences and meetings into your daily routine. With the use of Smart Board technology you can bring teachers from different campuses together for the greater good of the students.

Smart Board technology is an interactive whiteboard that has the power of a computer, the SMART Board interactive whiteboard lets you deliver dynamic lessons in CompTIA A+, write notes in digital ink and save your work – all with the simple touch of a finger.

Imagine an exciting lecture on Network infrastructure given by an Instructor that happens to be at another campus….of what a dilemma…. what to do!? Well problem solved because if you are a student of  Asher College you will be able to be a part of every lecture whether you are in that state or not.  Multi Campus lectures have become very popular and extremely utilized. Whether you’re studying Security+ or moving into the exciting world of Cisco having tools like this is a valuable resource. 

What are Some of the Certifications Available Today 





CompTIA A+ certification validates foundation-level knowledge and skills necessary for a career in IT support. It is the starting point for a career. The international, vendor-neutral certification proves competence in areas such as installation, preventative maintenance, networking, security and troubleshooting. 

CompTIA Network+ The CompTIA Network+ certification is the sign of a 
qualified networking professional.

CompTIA Security+ certification designates knowledgeable professionals in the field of security, one of the fastest-growing fields in IT.

Cicso CCNA Cisco Certified Network Associate (CCNA) validates the ability to install, configure, operate, and troubleshoot medium-size route and switched networks, including implementation and verification of connections to remote sites in a WAN.

Microsoft MCTS Want to validate your ability to successfully implement, build on, troubleshoot, and debug a particular Microsoft technology? A Microsoft Certified Technology Specialist (MCTS) certification proves your skills on a particular Microsoft technology, such as a Windows operating system, Microsoft Exchange Server, Microsoft SQL Server, or Microsoft Visual Studio.

Microsoft MCITP EA The Microsoft Certified IT Professional (MCITP) certification helps validate that an individual has the comprehensive set of skills necessary to perform a particular IT job role, such as database administrator or enterprise messaging administrator. MCITP certifications build on the technical proficiency measured in the Microsoft Certified Technology Specialist (MCTS) certifications. Therefore, you will earn one or more MCTS certifications on your way to earning an MCITP certification.

For more information about an exciting career in Information Technology please contact Asher College!