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Describe how a network works

• A successful PINGing of a host exhibits the connectivity through layers 1, 2, and 3 of an OSI network model.
• Simple Mail Transfer Protocol (SMTP) and Telnet are application layer protocols of the Internet protocol (IP) suite.
• Cable modem is used to connect a CATV cable to a computer/router through an Ethernet interface.
• A Wireless Access Point (WAP) is used to connect wireless hosts to a wired LAN.
• The Gigabit Ethernet (1000Base-LX) standard supports a maximum cable length of 5000 meters.
• The 1000Base-LX/SX Ethernet types use fiber cables.
• The Session layer of the OSI model manages communication between communication entities in a network.
• The Session layer of the OSI model provides dialog management and assists the upper layers in connecting to services on the network.
  • 640-802 CCNA: ICND1 and ICND 2
    download link: http://www.ucertify.com/exams/Cisco/640-802.html

  OR

  • 640-816 – CCNA: ICND2
    download link: http://www.ucertify.com/exams/Cisco/640-816.html

  AND

  • 640-822 CCNA: ICND1
    download link: http://www.ucertify.com/exams/Cisco/640-822.html

  Either choose 640-802 as a single exam option or both the 640-816 and 640-822 to become the CCNA certified.

To get a glimpse of the CCNA certification exam PrepKits, download its free demo version (which contains 15 free practice questions). Click the link below:

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