Tcp ip illustrated tcp ip illustrated
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Telecommunications, the Internet, and Wireless Technology
cs.furman.eduIllustrated here is a very simple computer network, consisting of computers, a network operating system ... •Transmission Control Protocol/Internet Protocol (TCP/IP) –Common worldwide standard that is basis for Internet •Department of Defense reference model for TCP/IP
Internet Protocols
fab.cba.mit.eduAn IP packet contains several types of information, as illustrated in Figure 30-2. Presentation Application Network Transport Link Physical OSI Reference Model Internet Protocol Suite Session NFS XDR RPC FTP, Telnet, SMTP, SNMP Not Specified IP ICMP TCP, UDP ith2801 Routing Protocols ARP, RARP
The Hadoop Distributed File System
storageconference.usclient, the NameNode and the DataNodes are illustrated in Fig. 1. Unlike conventional file systems, HDFS provides an API that exposes the locations of a file blocks. This allows applica-tions like the MapReduce framework to schedule a task to where the data are located, thus improving the read perform-ance.