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  • ccna

    • 121.

      Learn About Smtp, Lpd, X Window, Snmp, Tcp, And Udp Protocols

      by M. Aslam - 2008-10-06
      Simple Mail Transfer Protocol (SMTP)Simple Mail Transfer Protocol (SMTP), answering our ubiquitous call to email, uses a spooled, or queued, method of mail delivery. Once a message has been sent to a ...
    • 122.

      Why People Should Get Network+, Ccna, Ccnp or Ccie Network Based Certifications

      by M. Aslam - 2008-10-16
      As the world is running so fast the integrity of IT certification is very important to everyone. IT, as an industry and a profession, is largely growing with immense speed. Certifications cannot be a...
    • 123.

      Free Cisco Ccna, Ccent, Ccnp Certification Tutorial

      by M. Aslam - 2008-10-25
      Routing Routing is a relay system by which packets are forwarded from one device to another. Each device in the network as well as the network itself has a logical address so it can be identified a...
    • 124.

      Computers, CCNA Security Exam Tutorial: When It's Good To Add Salt

      by Chris Bryant - 2008-11-07
      When you started studying for your CCNA certification exam, one of the very first things you learned was the major difference between the enable password and the enable secret - the enable secret ...
    • 125.

      Free Cisco Ccna Tutorial

      by M. Aslam - 2008-11-19
      The basic boot sequence for a Cisco router is: Step 1: The router performs a power-on self-test (POST) to discover and verify the hardware. Step 2: The router loads and runs bootstrap code from ROM....
    • 126.

      Ccna, Ccent, Ccnp Tutorial on Routers and Routing

      by M. Aslam - 2008-11-21
      Routers are the critical part of all the networks and can be both security aid and security vulnerability. A router basically has more network interfaces through which network traffic is forwarded. O...
    • 127.

      Free Cisco Ccna, Ccnp, Ccent Tutorial on Switching, Spanning-tree Protocol (stp)

      by M. Aslam - 2008-11-22
      A Layer 2 switch, which functions as a transparent bridge, offers no additional links for redundancy purposes. To add redundancy, a second switch must be added. Now two switches offer the transparent...
    • 128.

      Computers Articles - CCNA Voice Tutorial: DHCP And The IP Phone Boot Process

      by Chris Bryant - 2009-08-10
      Just as our switches and routers have certain tests and procedures they run when they boot, so do Cisco IP Phones - but of course, there's a major difference or two between the Phone and router boot p...
    • 129.

      Ospf Hello Packets

      by commsupport Networks - 2009-12-09
      As a CCNA / CCNP candidate you are expected to understand the purpose and function of the OSPF protocol. The CCNA / CCNP's exam will ask of you to determine the purpose of the OSPF hello packet, what ...