Computer Networking What is the default subnet mask for a class B network? 255.255.0.0 255.255.255.0 255.0.0.0 127.0.01 None of these 255.255.0.0 255.255.255.0 255.0.0.0 127.0.01 None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking 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. None of these K I (K - P) 1/ (1 - F) P I (K + 1) KIK (1 + F) None of these K I (K - P) 1/ (1 - F) P I (K + 1) KIK (1 + F) ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which layer of OSI determines the interface of the system with the user? Data-link Network Application Session None of these Data-link Network Application Session None of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A receiving host has failed to receive all of the segments that it should acknowledge. What can the host do to improve the reliability of this communication session? Send a different source port number. Restart the virtual circuit. Decrease the window size. Decrease the sequence number. Send a different source port number. Restart the virtual circuit. Decrease the window size. Decrease the sequence number. ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A group of 2m - 1 routers are interconnected in a centralized binary tree, with router at each tree node. Router I communicate with router J by sending a message to the root of the tree. The root then sends the message back down to J. Then find the mean router-router path length. m - 1 2 (2m - 1) 2 (m - 2) (2m - l)/mJ m - 1 2 (2m - 1) 2 (m - 2) (2m - l)/mJ ANSWER DOWNLOAD EXAMIANS APP
Computer Networking How much power (roughly) a light-emitting diode can couple into an optical fiber? 440 microwatts 10 milliwatts None of these 100 microwatts 100 picowatts 440 microwatts 10 milliwatts None of these 100 microwatts 100 picowatts ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS