CCNA Exam is important to build a profession on Microsoft products
Previous versions of Windows also supported a protocol called NetBEUI. Net- BEUI is a very easy protocol to install and requires no configuration. However, it does not offer as many networking features as TCP/IP. Microsoft discontin- ued support of NetBEUI with Windows XP. Transmission Control Protocol/Internet Protocol (TCP/IP) is the most 70-640 Exam commonly used net- work protocol. It is a suite of interconnected protocols that have evolved as the industry stan- dard for network, internetwork, and Internet connectivity. The main protocols that provide basic TCP/IP services include Internet Protocol (IP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Address Resolution Protocol (ARP), Internet Control Mes- sage Protocol (ICMP), and Internet Group Management Protocol (IGMP). The following sections describe the benefits and features of TCP/IP, as well as the basics of TCP/IP addressing.On a clean installation of Windows Vista, TCP/IP is installed by default. TCP/IP has the fol- lowing benefits:TCP/IP is the most common protocol and is supported by almost all network operating systems. It is the required protocol for Internet access.TCP/IP is dependable and scalable for use in small and large networks. Support is provided for connectivity across interconnected networks, independent of the operating systems being used. TCP/IP provides connectivity for operating systems such as IBM mainframes, Apple Macintosh, Unix and Linux systems, and Open Virtual Memory Systems (VMS). TCP/IP provides standard routing services for moving packets over interconnected net- work segments. Dividing networks into multiple subnets optimizes network traffic and facilitates network management. TCP/IP is designed to be fault tolerant. It is able to dynamically reroute Comptia Security packets if network links become unavailable (assuming alternate paths exist). Protocol companions such as Dynamic Host Configuration Protocol (DHCP) and Domain Name System (DNS) offer advanced functionality. Support for Automatic Private IP Addressing (APIPA) , which is used by small networks without a DHCP server to automatically assign themselves IP addresses, is included. Support for NetBIOS over TCP/IP (NetBT) is included. NetBIOS is used for identifying computer resources by name as opposed to IP address. Performance enhancements include a larger TCP receive window for more efficient communication.The inclusion of Alternate IP Configuration allows users to have a static and a DHCP- assigned IP address mapped to a single network adapter, which is used to support mobile users who roam between different network segments.
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