Data link layer retransmits the damaged frames in most networks. If the probability of a frame's being damaged is p, what is the mean number of transmissions required to send a frame if acknowledgements are never lost.
Options: P I (K + 1), KIK (1 + F), 1/ (1 - F), K I (K - P)
Options: (A)The tasks that reacts to events that take place in out side world. (B) The tasks that do not reacts to the outside world events. (C) The tasks are independent of the time when it occurs. (D) None of these. 7
Options: absorption of corresponding wavelengths by the outer layers of the sun, destructive interference between waves of certain definite wavelengths, absorption of corresponding wavelengths by the prism used in the photograph, absence of corresponding wavelengths from the light emitted by the core of the sun
Sales persons and other employees of the company who spend much of their time away from their offices but keep in touch with their company's microcomputers or main frame computers over telephone lines are called
Options: field workers, telecommuters, teleprocessors, company directors
Your company has a LAN in its downtown office and has now set up a LAN in the manufacturing plant in the suburbs. To enable everyone to share data and resources between the two LANs, what type of device(s) are needed to connect them? Choose the most correct answer.