Explain how a lost update could occur if, under the circumstances of the previous problem, two transactions that were recording grades for a particular student (in di?erent courses) were run concurrently.
What will be an ideal response?
The ?rst transaction reads the course grades before the second updated its grade and then updates the GPA. The second transaction reads the course grades before the ?rst updated its grade and then updates the GPA. The ?rst update of the GPA is lost and the ?nal one is incorrect.
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________ is a way to apply formatting to specific controls based on a comparison to a rule set in the New Rule dialog box
A) Comparison formatting B) Syntax C) Control formatting D) Conditional formatting
Will the use of structure charts be beneficial during this stage of development? Discuss the advantages of structure charts compared with flowcharts and pseudocode.
What will be an ideal response?
What is the name of the feature that is used by Metro Ethernet service providers to ensure that traffic received from a customer doesn't extend beyond the contracted rate?
A) Policing B) Shaping C) Traffic Enforcer D) Buffer Engine
A device that physically or wirelessly connects to and is controlled by a computer, but is external to the computer case.