Computer Networking The OCR reading unit attached to a POS terminal is called a cursor All of these wand None of these light pen cursor All of these wand None of these light pen ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which multiplexing technique shifts each signal to a different carrier frequency? All of these FDM synchronous TDM asynchronous TDM All of these FDM synchronous TDM asynchronous TDM ANSWER DOWNLOAD EXAMIANS APP
Computer Networking What does 240 translate to in binary? None of these 1111 11110000 11110 11100000 None of these 1111 11110000 11110 11100000 ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Which fields are contained within an IEEE Ethernet frame header?1. Source and destination MAC address2. Source and destination network address3. Source and destination MAC address and source and destination network address4. FCS field 1 and 4 2 only 2 and 3 only 3 only 1 and 4 2 only 2 and 3 only 3 only ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Modulation in which the two binary values are represented by two different amplitudes of the carrier frequency is known as Aloha None of these Amplitude modulation Amplitude Amplitude-shift keying Aloha None of these Amplitude modulation Amplitude Amplitude-shift keying 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 less efficient The network becomes more efficient After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 An additional token is added for every 1,000 nodes The network becomes less efficient The network becomes more efficient After the number of nodes exceeds 550, the Multistation Access Unit must be replaced by the more powerful Hyperstation Unified Bandwidth device The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 An additional token is added for every 1,000 nodes ANSWER DOWNLOAD EXAMIANS APP
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