Answer the following statements true (T) or false (F)
1. Each request for service to the I/O manager is translated and formatted as a standard I/O
request packet (IRP) and forwarded to the IOCS for processing.
2. A device driver is a software routine that allows the operating system to communicate
with several different pieces of hardware.
3. File system drivers are technically not device drivers.
4. An Ethernet card is an example of a network driver.
5. Caching increases performance by holding information on disk in case the information is
needed a second time.
1. F
2. F
3. F
4. F
5. F
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An advantage of using inheritance with exceptions is:
a. The ability to catch related errors easily. b. Allowing catch statements to be imported into classes. c. The ability to explicitly test for derived class objects individually. d. The simplification of destructor calls for objects.
Analyze the following code.
``` public class Test { public static void main(String[] args) { System.out.println(max(1, 2)); } public static double max(int num1, double num2) { System.out.println("max(int, double) is invoked"); if (num1 > num2) return num1; else return num2; } public static double max(double num1, int num2) { System.out.println("max(double, int) is invoked"); if (num1 > num2) return num1; else return num2; } } ``` a. The program cannot compile because you cannot have the print statement in a non-void method. b. The program cannot compile because the compiler cannot determine which max method should be invoked. c. The program runs and prints 2 followed by "max(int, double)" is invoked. d. The program runs and prints 2 followed by "max(double, int)" is invoked. e. The program runs and prints "max(int, double) is invoked" followed by 2.
Form data sent to the server as shown in the accompanying figure is stored electronically in a ____.
A. script B. network C. browser D. database
Develop an extended-entry decision table for the True Disk company discount policy described in Problem below.
A computer supplies firm called True Disk has set up accounts for countless businesses in Dosville. true Disk sends out invoices monthly and will give discounts if payments are made within 10 days. The discounting policy is as follows: If the amount of the order for computer supplies is greater than $1,000, subtract 4 percent for the order; if the amount is between $500 and $1,000, subtract a 2 percent discount; if the amount is less than $500, do not apply any discount. All orders made via the Web automatically receive an extra 5 percent discount. Any special order (computer furniture, for example) is exempt from all discounting.