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CCENT.WS is offering a special online preparation center for the Cisco CCENT Certification Exam to anyone who want to earn CCENT Certification. The CCENT Prep Center has been in pilot test for almost one year, and got some interesting updates in 2009. This resource is FREE of charge to anyone who's want to become Cisco CCENT Certified. If you pay a visit to the CCENT Prep Center, here's you'll find:

Command-Line Interface (CLI)

To use the CLI, press Enter after the router finishes booting up. After you do that, the router will respond with messages that tell you all about the status of each and every one of its interfaces and then display a banner and ask you to log in.

 

Just log in using cisco/cisco as the username/password and you will be in privileged mode.

 

After the interface status messages appear and you press Enter, the Router> prompt will appear. This is called user exec mode (user mode), and it’s mostly used to view statistics, but it’s also a stepping stone to logging in to privileged mode.

 

You can only view and change the configuration of a Cisco router in privileged exec mode (privileged mode), which you can enter with the enable command.


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CCENT Practice Exam Questions
A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session?
Send a different source port number.
Restart the virtual circuit.
Decrease the sequence number.
Decrease the window size.
A receiving host can control the transmitter by using flow control (TCP uses Windowing by default). By decreasing the window size, the receiving host can slow down the transmitting host so the receiving host does not overflow its buffers.
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