A control that detects transmission errors by appending calculated bits onto

A control that detects transmission errors by

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41. A control that detects transmission errors by appending calculated bits onto the end of each
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segment of data is known as a:42. Applying a retention date on a file will ensure that:43. Which of the following is the BEST audit procedure to determine if a firewall is configured incompliance with an organization's security policy?44. An organization is considering installing a LAN in a site under construction. If system
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availability is the main concern, which of the following topologies is MOST appropriate?A. RingB. LineC. StarD. BusAnswer: AA ring or loop topology would enable messages to be rerouted should the network cabling besevered at any point or a hardware element fail.With the correct settings in network hardware,the loss of any link would be invisible to the users. In line and bus networks, which are essentiallythe same thing, terminals are connected to a single cable. If this cable is severed, all terminalsbeyond the point of severance will be unavailable. A star network clusters terminals around hubs,connected to the server by separate lines in the form of a star. If any line is severed, all terminalsin the cluster at the end of that line would be disconnected.
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