Computer Networking Which of the following might be used by a company to satisfy its growing communications needs? controller multiplexer front-end processor All of these concentrator controller multiplexer front-end processor All of these concentrator ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The data-link layer, in reference to the OSI model, specifies the interface between the X.25 network and packet mode device the virtual circuit interface to packet-switched service None of these All of these data link procedures that provide for the exchange of data via frames that can be sent and received the interface between the X.25 network and packet mode device the virtual circuit interface to packet-switched service None of these All of these data link procedures that provide for the exchange of data via frames that can be sent and received ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take? None of these 12 seconds 120 seconds 2 seconds 20 seconds None of these 12 seconds 120 seconds 2 seconds 20 seconds ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Eight stations are competing for the use of a shared channel using the 'Adaptive tree Walk Protocol'. If the stations 7 and 8 are suddenly become ready at once, how many bit slots are needed to resolve the contention? None of these 14 slots 7 slots 10 slots 5 slots None of these 14 slots 7 slots 10 slots 5 slots ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The Token-Ring architecture was developed for a more efficient way to determine who should be transmitting at any one time. With Ethernet, collisions may take place, causing the transmitting computers to have to retransmit their data. The use of token guarantees that only one computer can transmit at a time. What happens as the network increases in size? Choose the best answer The network becomes more efficient The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device An additional token is added for every 1,000 nodes The network becomes less efficient The network becomes more efficient The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device An additional token is added for every 1,000 nodes The network becomes less efficient ANSWER DOWNLOAD EXAMIANS APP
Computer Networking The communication mode that supports data in both directions at the same time is multiplex None of these half-duplex simplex full-duplex multiplex None of these half-duplex simplex full-duplex ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS