CCNA Training Guide Exam 640-407 by Kevin S. Mahler

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By Kevin S. Mahler

CCNA education consultant assists readers achieve step one within the Cisco occupation Certification direction through assisting them certify as a Cisco qualified community affiliate (CCNA). CCNA certification is the root for all different certifications within the Cisco occupation Certification software. applicants needs to cross a unmarried examination (Exam #640-407) with the intention to develop into a CCNA. One should have handed the CCNA examination to be able to search higher-level certifications. The CCNA education advisor bargains readers the chance to advance their networking talents with a entire examine software that would offer whole assurance of the required technical and examination fabric. extra importantly the e-book will supply readers with broad possibilities to realize the dear hands-on event that's essential to entire step one to turning into a Cisco qualified specialist.

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Extra resources for CCNA Training Guide Exam 640-407

Sample text

Windowing Windowing relies on the receiving station’s acknowledging receipt of packets. This acknowledgment is commonly called an ACK. It would create a great deal of overhead if the receiving station had to acknowledge every packet individually, so a window is used. The sending and receiving stations agree on a window size. This window defines the number of packets they will exchange before an acknowledgment is required. If the window size is five packets, the sending station will send five packets and then wait for an acknowledgment from the receiving station.

Maintaining the router passwords, identification, and banners is important to the daily maintenance of routers and switches. Identify the main Cisco IOS commands for router startup. Understanding Cisco startup commands is Copy and manipulate configuration files. Copying and manipulating router configuration files is important for maintaining routers. List the commands to load Cisco IOS software from flash memory, a TFTP server, or ROM. The IOS software can be loaded from several sources. Being able to perform these techniques is important.

In networks where layer 2 switches are used, this process is much more complex. ” 04 051-6 CH 01 8/10/99 9:15 AM Page 27 C hapter 1 Ethernet can be implemented several different ways. The most common are 10Base5, 10Base2, 10BaseT, 100BaseTX, and 100BaseFX. Each implementation has different characteristics. 10Base5 is implemented on a thick coaxial cable with an impedance of 50 ohms. 10Base5 is commonly called ThickNet. Since 10Base5 uses low-loss coaxial cable, it has a maximum segment length of 500 meters.

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