ensures that the network does not become saturated at any one point. a. End-to-end error control c. End-to-end flow control b. Congestion control d. Synchronization points control 23. The bottom layer in the OSI model the laver-handles the transmission of bits over a communica channel a data link c. physical b. application d. network 24. The _ suite was not created by a standards-making organization but by a group of computer scientists a. OSI model c. OSI model b. FTP protocol d. TCP/IP protocol 25. The TCP/IP laver supports network applications and may include presentation services. a transport c. network b. application d. network access 26. _ is used to allow the numerous elements within a computer network to be managed from a single point. a. Simple Network Management Protocol (SNMP) b. Simple Mail Transfer Protocol (SMTP) c. Telnet d. File Transfer Protocol (FTP) 27. The TCP/IP laver commonly uses the Transmission Control Protocol (TCP) to maintain an error-free end-to-end connection a network c. transport b. network access d. application 28. The TCP/IP layer, sometimes called the Internet layer, is roughly equivalent to OSI's network layer. a network access c. transport b. application d. network A(n) connection is a nonphysical connection between sender and receiver that allows an exchange of commands and responses. a. physical c. real b. encapsulated d. logical 30. The addition of control information to a packet as it moves through the layers is called a encapsulation c. payload b. overloading d. filtering 31. _ is entities that convey meaning within a computer or computer system. a. Signals c. Impulse b. Data d. EMI 32. If you want to transfer data from one point to another, either via a physical wire or through radio waves, the data has to be converted into an)_ a. hertz c. signal b. Unicode d. byte