Q. What is the pre-requisite for taking the test Cisco 640-822?

A. The ICND1 (640-822) exam is the only requirement for achieving the latest entry-level CCENT certification from Cisco. It is also one of the two exams for achieving the CCNA certification. You now have to pass exams 640-822 and 640-816 if you opt for the two exams for your CCNA certification. The exam tests your ability to install, operate, and troubleshoot a small branch office network. There are no specific prerequisites for the ICND1 (640-822) test, and it is appropriate for you if you have knowledge in networking fundamentals, basic security and wireless concepts, routing and switching fundamentals, the TCP/IP and OSI models, IP addressing, WAN technologies, implementing NAT and DHCP, configuring simple networks, etc. This test is suitable for you if you want to work as a Network administrator, System Analyst or Network Support Professional.

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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.
  • 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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