Many newcomers to Information Technology get an overly-optimistic picture of the field from tech school ads that continually make note that "an average MCSE salary is $80.000 a year!".
And if someone's thinking of getting into IT and goes on the internet to do some research, they're met with the opposite end of the spectrum - complaint after complaint about how much IT is a terrible field, you can't break in, there's no room for newcomers, etc.
As usual, the truth lies in the middle. As much as I love the IT field, I'll be the first to say that it's often hard to get that first job. Many tech schools have a job placement department, and that can be one big plus in their favor.
What if you don't have that resource working for you? When you're breaking into any field, IT or not, you must not make the classic mistake of sending a ton of resumes and waiting for the phone to ring. The odds are that it won't.
You must get out and talk to people. The term "networking" doesn't just refer to allowing computers to talk to each other; it also refers to people talking to each other. In your case, you've got to get out and meet people. Check the business section of your local newspaper. There will be dozens of networking meetings listed in there. It doesn't matter that you aren't in the field yet; go to these meetings and meet people. Initiative is never a bad thing.
And once you get that first job, make it count. Show up on time and do what you say you'll do. If you don't know something, dig into Google and find the answer or ask a more knowledgeable colleague. (Just doing these few basic things will put you way ahead of the pack.)
Getting started in IT is as tough as breaking into any other field. Having worked in a few different jobs in my life, though, I can tell you this: No other field in the world rewards individual drive, initiative, and achievement like Information Technology. The fact that you have to work so hard to get in will make your eventual and unstoppable success just that much sweeter.
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Sabtu, 25 Desember 2010
Sabtu, 10 Juli 2010
Cisco CCNA / CCNP Home Lab Tutorial: A Guide To Cable Types
When you're putting your CCNA and/or CCNP home lab together, you're not just buying routers and switches you're creating a blueprint for success. There is no better way to learn about how real Cisco routers and switches work than to work with the real thing!
Of course, it's not enough to just get the routers and switches you've got to have the right cables and other devices to allow them to communicate. Let's take a look at the different cables and connectors you need to know about when putting together your CCNA and CCNP home labs.
The basic cable you'll need is a straight-through cable. These are used to connect your switches and routers also, if you have an ISDN simulator, you'll need a straight-through cable to connect the router's BRI interface to the simulator.
A more specialized cable type is the DTE/DCE cable. If you plan to use the serial interfaces on your routers (and you certainly should be!), you'll need some of these cables. To connect two routers directly via their serial interfaces, you must have a DTE/DCE cable. (If you have a Cisco router set up as a frame relay switch, you'll need more of these cables.)
If you have multiple switches, you'll want to connect these switches in order to create a trunk line and possibly an Etherchannel. To successfully create a trunk between two switches, you'll need crossover cables.
To connect your PC directly to the router or switch you're configuring, you'll need a rollover cable, also referred to as a rolled cable. This cable has an Rj-45 connector on one end and DB-9 connector on the other.
Once you've added multiple routers and switches to your CCNA / CCNP home lab, you'll get tired of moving that rolled cable around. An access server (a special model of Cisco router, actually) will allow you to connect the rolled cable to it and communicate with all your devices via that connection. To use an access server, you'll need an octal cable. This unusual cable has a large serial connector on one end (this won't fit just any serial interface, so when purchasing an access server, make sure to get the right type of Cisco router) and has eight separate RJ-45 connectors at the other end.
The best news of all for all CCNA and CCNP candidates is that like used routers and switches, all these cables are affordable. You can find vendors that sell these cables on ebay and through search engines, and the odds are that the vendor that sold you your lab equipment also sells these cables. This also gives you first-hand experience in cabling your own lab - and that is the best exam preparation of all! (Multiple-choice questions on cable types are easy when you've actually worked with them!)
Of course, it's not enough to just get the routers and switches you've got to have the right cables and other devices to allow them to communicate. Let's take a look at the different cables and connectors you need to know about when putting together your CCNA and CCNP home labs.
The basic cable you'll need is a straight-through cable. These are used to connect your switches and routers also, if you have an ISDN simulator, you'll need a straight-through cable to connect the router's BRI interface to the simulator.
A more specialized cable type is the DTE/DCE cable. If you plan to use the serial interfaces on your routers (and you certainly should be!), you'll need some of these cables. To connect two routers directly via their serial interfaces, you must have a DTE/DCE cable. (If you have a Cisco router set up as a frame relay switch, you'll need more of these cables.)
If you have multiple switches, you'll want to connect these switches in order to create a trunk line and possibly an Etherchannel. To successfully create a trunk between two switches, you'll need crossover cables.
To connect your PC directly to the router or switch you're configuring, you'll need a rollover cable, also referred to as a rolled cable. This cable has an Rj-45 connector on one end and DB-9 connector on the other.
Once you've added multiple routers and switches to your CCNA / CCNP home lab, you'll get tired of moving that rolled cable around. An access server (a special model of Cisco router, actually) will allow you to connect the rolled cable to it and communicate with all your devices via that connection. To use an access server, you'll need an octal cable. This unusual cable has a large serial connector on one end (this won't fit just any serial interface, so when purchasing an access server, make sure to get the right type of Cisco router) and has eight separate RJ-45 connectors at the other end.
The best news of all for all CCNA and CCNP candidates is that like used routers and switches, all these cables are affordable. You can find vendors that sell these cables on ebay and through search engines, and the odds are that the vendor that sold you your lab equipment also sells these cables. This also gives you first-hand experience in cabling your own lab - and that is the best exam preparation of all! (Multiple-choice questions on cable types are easy when you've actually worked with them!)
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