Computer Networking Which of the following allows a simple email service and is responsible for moving messages from one mail server to another? FTP POP3 DHCP SMTP IMAP FTP POP3 DHCP SMTP IMAP ANSWER DOWNLOAD EXAMIANS APP
Computer Networking A 6-MHz channel is used by a digital signaling system utilizing 4-level signals. What is the maximum possible transmission rate? 6 Mband/sec 1.5 Mbaud/sec 24 Mbaud/sec 12 Mbaud/sec None of these 6 Mband/sec 1.5 Mbaud/sec 24 Mbaud/sec 12 Mbaud/sec None of these 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 None of these data link procedures that provide for the exchange of data via frames that can be sent and received the virtual circuit interface to packet-switched service All of these the interface between the X.25 network and packet mode device None of these data link procedures that provide for the exchange of data via frames that can be sent and received the virtual circuit interface to packet-switched service All of these ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Ethernet and Token-Ring are the two most commonly used network architectures in the world. Jim has heard of the different topologies for networks and wants to choose the architecture that will provide him with the most options. Which of the following would that be? Choose the most correct answer. Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology Neither Token-Ring nor Ethernet is the proper choice. Only ARCnet can be used in all topologies Ethernet, because it can be set up with most topologies and can use multiple transfer speeds Ethernet, because it is cabled using fiber-optic cable Token-Ring, because it uses a MAU Token-Ring because it currently can run at both 4Mbps and 16Mbps. This means that it can be used in any topology Neither Token-Ring nor Ethernet is the proper choice. Only ARCnet can be used in all topologies Ethernet, because it can be set up with most topologies and can use multiple transfer speeds Ethernet, because it is cabled using fiber-optic cable Token-Ring, because it uses a MAU ANSWER DOWNLOAD EXAMIANS APP
Computer Networking Typewriter terminals can print computer-generated data at a rate of 10 characters per second 1200 characters per minute 120 characters per minute None of these 120 characters per second 10 characters per second 1200 characters per minute 120 characters per minute None of these 120 characters per second 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 An additional token is added for every 1,000 nodes The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 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 An additional token is added for every 1,000 nodes The speed of the Token-Ring network must be 16Mbps if the number of nodes is greater then 500 ANSWER DOWNLOAD EXAMIANS APP
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