A problem with either segmented or paged address translation is timing. Suppose a user wants to read some data from an input device into memory. For efficiency during data transfer, often the actual memory address where the data are to be placed is provided to an I/O device. The real address is passed so that time-consuming address translation does not have to be performed during a very fast data transfer. What security problems does this approach bring?
What will be an ideal response?
Address bounding, possibility of a process’s moving while the I/O transfer is going on, possibility of forging an address or modifying it after translation but before its receipt by the I/O device, possibility of translation or transmission failure so that the I/O device receives an incorrect address. With paging, there is also the problem of the amount of data crossing a page boundary.
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A computer ____________________ is any person who designs, configures, analyzes, develops, tests, or ensures the security of computer hardware or software.
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Answer the following statement true (T) or false (F)
Case Based Critical Thinking Questions
Case 5-2 Marie works for a busy pediatrician's office. The practice has a sophisticated database for all records and information that pertain to the practice. The doctor for whom she works is participating in an academic study, and she needs a report that lists the patient's name, date of birth, and the names of parents or guardians. The doctor would like to see the patient's full name in the format Lastname, Firstname even though they are separate fields in the database. She would also like to see the data for the fields Mother, Father, and Guardian, regardless of whether or not data is actually entered in those fields. Based on the doctor's requirements for the report, Marie must create a query on which to base the report. ? Because the doctor wants all data entered for parents and guardians regardless of the data in the field, Marie must create a calculated field in the query with a function that tests the Mother, Father, and Guardian fields for a condition that is either true or false. If the condition is true, one result will be displayed, and if the condition is false a different result will be displayed. Which function should Marie use for this calculated field? A. Input B. IIf C. nonnull D. IsError
Match the following terms with their description:I.Absolute cell referencesII.Relative cell referencesIII.Mixed cell referencesIV.ArgumentV.FunctionA.Part of it changes when you copy and paste a formulaB.Changes when you copy and paste a formulaC.Simplifies complex calculationsD.Does not change when you copy and paste a formulaE.Required input in a function
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