CompTIA A+ 220-701: 3.2 – Command Line Utilities

February 23, 2010

There is a wealth of Windows utilities that can be run directly from the command line or launched from the Start menu. In this video, we’ll examine utilities like telnet, ping, msconfig, dxdiag, and many more.

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Category: CompTIA A+ 220-701

Comments (13)

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  1. Jeff says:

    If you create a restore point before you screw up the registry with regedit, can you use System Restore to restore the registry? Or does System Restore have nothing to do with the registry?

  2. john frogue says:

    when are you going to talk about windows 7 OS? Is ther much difference from Vista or the ne Win7?

  3. April says:

    I’m on Vista the telnet setting was off. You have to turn it on for telnet to work. So if your on Vista and your having trouble with telnet that is the reason. Not hard to turn it on. Go to Control Panel, Programs, Turn Windows features on/off then just scroll down tell you find tell net and just check the box to turn it on. A permission box will pop up and you have to click continue. It will take a few min for the computer to configure it.

  4. Sergey says:

    Video 1 at 5:58. Professor, please correct your statement about TTL field in the PING command output. It is not accurate.

    • The comments about TTL in this video are accurate, although I don’t go into details about TTL or how it works (I describe TTL in the networking section and in the Network+ videos). nnWhat part of the TTL description do you find inaccurate?

      • Sergey says:

        nnYou stating in the above video: “and the time tonlive was 64 hops, so this is really close to me”. It is just does not makensense. You running PING from host which is in the same subnet thatnis your router ( In fact you just 1 hop away from your own routern(not 64 hops). What TTL field really is that what value responding device setsnin IP header’s TTL field when it sends packets out.nnn

        • I’m actually zero hops away from the local device that I initially pinged, which is why the TTL remained at 64; this device was so close that I didn’t need to traverse a router in order to receive a ping response from it.nnTTL is a countdown timer; it starts at a particular number and decreases by one each time it goes through a router. When the time to live reaches zero, a router discards the packet.