... ITE 1 Chapter 6 12 Cisco Thai Nguyen Networking Academy WAN Physical Layer Standards TheWAN physical layer also describes the interface between the DTE and the DCE. –EIA/TIA -23 2 - This ... on a 25 -pin D-connector over short distances. It was formerly known as RS -23 2.The ITU-T V .24 specification is effectively the same. –EIA/TIA-449/530 - This protocol is a faster (up to 2 Mb/s) ... version of EIA/TIA -23 2. It uses a 36-pin D-connector and is capable of longer cable runs. There are several versions. This standard is also known as RS 422 and RS- 423 . –EIA/TIA-6 12/ 613 - This standard...
... khoa - Website: www.bkacad.com Chapter 2 - Communicating over the Network CCNA Exploration 4. 0CCNA Exploration 4.0End Devices and their Role on the Network • The network devices that people ... Devices and their Role on the Network • Intermediary devices to provide connectivity and to work behind the scenes to ensure that data flows across the network.• These devices connect the individual ... Website: www.bkacad.com The Internet – A Network of Networks• Although there are benefits to using a LAN or WAN, most of us need to communicate with a resource on another network, outside of...
... running the FTP daemon (FTPd).• The client establishes the first connection to the server on TCP port 21 . The client establishes the second connection to the server over TCP port 20 . • The file ... term connection to servers. Once the connection is established, the user of the client can access the resources on the server as if the resource is local to the client host. • SMB file-sharing ... request message to a server, the HTTP protocol defines the message types the client uses to request the web page and also the message types the server uses to respond. The three common message...