概率论第4章习题参考解答 1.若每次射击中靶的概率为0.7,求射击10炮,命中3炮的概率,至少命中3炮的概 率,最可能命中几炮 解:设为射击10炮命中的炮数,则B(100.7),命中3炮的概率为 PE=3}=C0.730.37=0.0090 至少命中3炮的概率,为1减去命中不到3炮的概率,为 P≥3}=1-P(5<3}=1-0.70.310-0.998 因np+p=10×0.7+0.7=7.7不是整数,因此最可能命中[77=7

Course Description Text (required) TCP/IP Protocol Suite, 2nd edition, Behrouz A. Forouzan. Mc Graw-Hill 2003. · Supplementary Texts Internetworking with TCP/IP, Volume 3: Client-Server Programming and Application, Linux-POSIX Sockets Version

Transport layer protocol is to reate a process-to-process communication Provide control mechanisms Provide a connection mechanism for the processes

Client-Server Model Software Design Concurrent Processing CSIE, NTUT, TAIWAN

How applications become clients by initiating communication How applications use TCP or UDP protocols to contact a server How they use socket calls to interact with the protocols CSIE, NTUT, Taiwan

Consolidating Servers Same motivations for multiprotocol servers Higher risk to use a single, multiservice server, why? Consolidating many services into a single server process reduces the number of executing processes dramatically The total code required

Examples Iterative, Connectionless Server (UDP) Iterative, Connected-Oriented Server (TCP) Concurrent. Connection-Oriented Server(TCP)

Contents NAME SPACE DOMAIN NAME SPACE DISTRIBUTION OF NAME SPACE DNS IN THE INTERNET RESOLUTION DNS MESSAGES TYPES OF RECORDS COMPRESSION EXAMPLES

Introduction Examines a de facto standard for external data representation and presentation as well as a set of library procedures used to perform data conversion Describes the general motivations for using an external data representation and the details of one particular implementation

Introduction Continues the discussion of middleware (i.e., tools and libraries programmers used to construct client-server software) Y Introduces the remote procedure call (RPC) concept, and describes a particular implementation of an rpc that uses XDr standard for data representation