IT Governance, Risk, and Compliance:

September, 2012

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September 29, 2012  12:00 AM

Online Data Communication Access Controls – Part II

Robert Davis Robert Davis Profile: Robert Davis

Control over access to communication devices may not be effective in an online infrastructure unless access to the employed communication configuration is also restricted. Yet, many online...

September 26, 2012  11:58 PM

Online Data Communication Access Controls – Part I

Robert Davis Robert Davis Profile: Robert Davis

Access to communication devices should be restricted by physical security access controls. As a particular, access to the communication devices should be restricted in much the...


September 22, 2012  12:07 AM

A Few Fundamentals of Networking Electronically Encoded Data – Part IV

Robert Davis Robert Davis Profile: Robert Davis

In TDM (typically utilized for digital signals) a device is given a specific time slot during which it can utilize a particular channel. In contrast, with FDM (typically utilized for analog signals) the channel is subdivided into sub-channels, each with a different frequency width that is assigned...


September 20, 2012  1:09 AM

A Few Fundamentals of Networking Electronically Encoded Data – Part III

Robert Davis Robert Davis Profile: Robert Davis

Packet assembly and disassembly between telecommunication links Input or output (I/O) channels are paths along which datum are transmitted to and from primary storage. These communication channels also handle the transfer of datum to and from I/O devices. As a result, this...


September 15, 2012  12:24 AM

A Few Fundamentals of Networking Electronically Encoded Data – Part II

Robert Davis Robert Davis Profile: Robert Davis

All of the computers and other hardware connected to a particular network must follow the same rules or operations commonly called protocols. Operational rules are typically divided up into layers so a programmer or network administrator need only be concerned with the layer with which the...


September 13, 2012  12:42 AM

A Few Fundamentals of Networking Electronically Encoded Data – Part I

Robert Davis Robert Davis Profile: Robert Davis

Any distributed IT infrastructure requires a complex set of communication functions for proper operation. Many of these functions, such as reliability mechanisms, are common across IT architectures. Thus, the communication task is generally viewed as consisting of a modular architecture, in which...


September 8, 2012  12:14 AM

Data Communications Risk in Distributed Computing – Part V

Robert Davis Robert Davis Profile: Robert Davis

Reducing data communication error risk for teleprocessing systems Teleprocessing is the handling of data through a communications channel, such as...


September 5, 2012  7:56 PM

Data Communications Risk in Distributed Computing – Part IV

Robert Davis Robert Davis Profile: Robert Davis

Signal fading is a decline in transmission strength. Fading can occur when a signal is transmitted by microwaves. Under certain conditions, the signal picked up by the receiving unit can be quite weak. A weak signal is more susceptible to transmission noise and error. Signal...


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