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Interrupt Service Routines (ISR) are the )ortions of the program code that handle the interrupt requests. When an Interrupt is triggere i (either a hardware or software interrupt), the processor breaks away from the current task. moves the (72) to the ISR, and then continues operation. When the ISR has comr Leted, the processor retums execution to the previous location.
A.memory
B.function
C.instruction pointer D variable
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更多 “ Interrupt Service Routines (ISR) are the )ortions of the program code that handle the interrupt requests. When an Interrupt is triggere i (either a hardware or software interrupt), the processor breaks away from the current task. moves the (72) to the ISR, and then continues operation. When the ISR has comr Leted, the processor retums execution to the previous location.A.memoryB.functionC.instruction pointer D variable ” 相关考题
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To document your code can increase program(72) and make program easier to(73)．A．reliabilityB．securityC．readabilityD．usability
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● To document your code can increase program （72） and make program easier to （73）.（72）A. reliabilityB. securityC. readabilityD. usability（73）A. executeB. interpretC. compileD. maintain
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Interrupts are an important part of embeddedsystems. Consequently, many compiler vendorsoffer an extension to standard C to support interrupts.Typically, the keyword is __interrupt. The followingcode uses __interrupt to define an interrupt serviceroutine (ISR). Point out problems in the code.__interrupt double compute_area (double radius){double area = PI * radius * radius;printf("\nArea = %f", area);return area;}
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Which reference code is displayed during the boot process that signals that an administrator may interrupt the boot process to enter the SMS Menu?()
A.517B.B0G1C.E1F1D.00A8
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（ ）refers to the range of computer hardware and OS platforms on which the source code of a program can be compiled and run.A.Usability
B.Portability
C.Reliability
D.Maintainability
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After analyzing the source code,（）generates machine instructions that will amy out the meaning of the program at a later time.A.an Interpreter
B.A.linker
C.A.compiler
D.A.converter
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An operating system also has to be able to service peripheral（ ）,such as timers,motors,sensors,communicationdevices,disks,etc.All of those can request the attention of the OS（ ）,i.e.at the time that they want to use the OS,theOS has to make sure it's ready to service the requests.Such a request for attention is called an interrupt.There are twokinds of interrupts:Hardware interrupts and Software interrupts.The result of an inteiTup:is also a triggering of theprocessor,so that it jumps to a（ ）address.Examples of cases where software interrupts appear are perhaps a divide by zero,a memory segmentation fault,etc.So this kind of interrupt is not caused by a hardware event but by a specificmachine language operation code.Many systems have more than one hardware interrupt line,and the hardwaremanufacturer typically assembles all these interrupt lines in an interrupt（请作答此空）.An Interrupt（ ）is a piece of hardware that shields the OS from the electronic details of the interrupt lines,so that interrupts can be queued and none of themgets lost.A.vector
B.array
C.queue
D.ist
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其中关于服务代码（SERVICE CODE）下面的描述是正确的？（）A、服务代码( Service code)可以帮助客户提取他/她的车辆在非营业时间B、服务代码( Service code)是单独的维修项目C、服务代码( Service code)经车间发出D、服务代码( Service code)描述了保养工作的成本E、服务代码( Service code)可通过仪表读出
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public class Test { public static void main （String args） { string foo = “blue”； string bar = foo； foo = “green”； System.out.printIn（bar）； } } What is the result？（） A、 An exception is thrown.B、 The code will not compile.C、 The program prints “null”D、 The program prints “blue”E、 The program prints “green”
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public class foo { public static void main （stringargs） try {return；} finally {system.out.printIn（“Finally”）；} } What is the result？（） A、 The program runs and prints nothing.B、 The program runs and prints “Finally”C、 The code compiles， but an exception is thrown at runtime.D、 The code will not compile because the catch block is missing.
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public class foo { public static void main （string[]args） try {return；} finally {system.out.printIn（“Finally”）；} } What is the result？（）A、 The program runs and prints nothing.B、 The program runs and prints “Finally”C、 The code compiles， but an exception is thrown at runtime.D、 The code will not compile because the catch block is missing.
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下列四组选项中，均是不合法的C51标识符的是（）A、abc、＃int、65B、int、5xy、isr-t0C、isr*int0、interrupt、int3D、int3、t1_t2、you
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Company.com recently updated the programs used in an HACMP pre-event. The procedure Involved coping the new code over the old code in the appropriate directory on one of the nodes as indicated by the HACMP event entry. The cluster was synchronized. During a fallover test， the backup system did not behave as expected. What is the most likely problem？（） A、 The new pre-event program was node locked to a hostnameB、 The new pre-event program was not made executable on al nodes.C、 The new pre-event program was not compatible with the backup machine.D、 The new pre-event program was not propagated to all the nodes in the cluster.
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Given 1. public class Foo { 2. public static void main （String [] args） } 3. try { return；} 4. finally { Syste.out.printIn （“Finally”）；} 5. } 6. } What is the result（ ）？A、 The program runs and prints nothing.B、 The program runs and prints “Finally”.C、 The code comiles. But an exception is thrown at runtime.D、 The code will not compile because the catch block is missing.
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Where can you add your own PL/SQL code in relation-handling triggers?（）A、Before the "End default relation program section" comment. B、After the "Begin default relation program section" comment. C、Before the "Begin default relation program section" comment. D、It is not possible to modify the relation-handling code that Forms automatically creates for relations.
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You are developing a Windows Communication Foundation (WCF) service to replace an existing ASMX Web service.The WCF service contains the following code segment. (Line numbers are included for reference only.) 01 [ServiceContract（ ）] 02 03 public interface IEmployeeService 04 { 05 [OperationContract（ ）] 06 EmployeeInfo GetEmployeeInfo(int employeeID); 07 08 } 09 10 public class EmployeeService : IEmployeeService 11 { 12 13 public EmployeeInfo GetEmployeeInfo(int employeeID) 14 { 15 ... 16 } 17 } 18 19 20 public class EmployeeInfo 21 { 22 ... 23 public int EmployeeID { get; set; } 24 public string FirstName { get; set; } 25 public string LastName { get; set; } 26 27 }The existing Web service returns the EmployeelD as an attribute of the Employeelnfo element in the response XML.You need to ensure that applications can consume the service without code changes in the client. What should you do?（）A、Insert the following code at line 02. [DataContractFormat()] Insert the following code at line 22. [DataMember()]B、Insert the following code at line 02. [XmlSerializerFormat()] Insert the following code at line 22. [XmlAtttibute()]C、Insert the following code at line 09. [XmlSerializerFormat()] Insert the following code at line 22. [XmlAttribute()]D、Insert the following code at line 19. [DataContractFormat()] Insert the following code at line 22. [DataMember()]
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单选题You develop a service application named PollingService that periodically calls long-running procedures.These procedures are called from the DoWork method.You use the following service application code： When you attempt to start the service， you receive the following error message： Could not start the PollingService service on the local computer.Error 1053： The service did not respond to the start or control request in a timely fashion. You need to modify the service application code so that the service starts properly.What should you do？（）A
Move the loop code into the constructor of the service class from the OnStart method.B
Drag a timer component onto the design surface of the service. Move the calls to the long-running procedure from the OnStart method into the Tick event procedure of the timer， set the Enabled property of the timer to True， and call the Start method of the timer in the OnStart method.C
Add a class-level System.Timers.Timer variable to the service class code. Move the call to the DoWork method into the Elapsed event procedure of the timer， set the Enabled property of the timer to True， and call the Start method of the timer in the OnStart method.D
Move the loop code from the OnStart method into the DoWork method.
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单选题What is the result（ ）？A
The program prints “0”.B
The program prints “4”.C
The program prints “8”.D
The program prints “12”.E
The code does not compile.
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单选题Where can you add your own PL/SQL code in relation-handling triggers?（）A
Before the End default relation program section comment. B
After the Begin default relation program section comment. C
Before the Begin default relation program section comment. D
It is not possible to modify the relation-handling code that Forms automatically creates for relations.
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单选题public class Test { public static void main （String [] args） { string foo = “blue”； string bar = foo； foo = “green”； System.out.printIn（bar）； } } What is the result？（）A
An exception is thrown.B
The code will not compile.C
The program prints “null”D
The program prints “blue”E
The program prints “green”
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多选题You create a service application that monitors free space on a hard disk drive. You must ensure that the service application runs in the background and monitors the free space every minute. What should you do？（）AAdd code to the default constructor of the Service class to monitor the free space on the hard disk drive.BAdd code to the OnStart method of the Service class to monitor the free space on the hard disk drive.CAdd an instance of the System.Windows.Forms.Timer class to the Service class and configure it to fire every minute.DAdd an instance of the System.Timers.Timer class to the Service class and configure it to fire every minute.EAdd code to the OnStart method of the Service class to start the timer.FAdd code to the Elapsed event handler of the timer to monitor the free space on the hard disk drive.GAdd code to the Tick event handler of the timer to monitor the free space on the hard disk drive.
考题
单选题Company.com recently updated the programs used in an HACMP pre-event. The procedure Involved coping the new code over the old code in the appropriate directory on one of the nodes as indicated by the HACMP event entry. The cluster was synchronized. During a fallover test， the backup system did not behave as expected. What is the most likely problem？（）A
The new pre-event program was node locked to a hostnameB
The new pre-event program was not made executable on al nodes.C
The new pre-event program was not compatible with the backup machine.D
The new pre-event program was not propagated to all the nodes in the cluster.
考题
单选题public class foo { public static void main （string[]args） try {return；} finally {system.out.printIn（“Finally”）；} } What is the result？（）A
The program runs and prints nothing.B
The program runs and prints “Finally”C
The code compiles， but an exception is thrown at runtime.D
The code will not compile because the catch block is missing.
考题
单选题Which reference code is displayed during the boot process that signals that an administrator may interrupt the boot process to enter the SMS Menu?（）A
517B
B0G1C
E1F1D
00A8
考题
单选题You are creating a Windows Forms application by using the .NET Framework 3.5.You plan to develop a new control for the application. You need to ensure that the control extends the DataGridView control by allowing the cells to contain multicolored text. What should you do？（）A
Override the OnPaint method.B
Write a code segment to handle the CellPainting event.C
Write a code segment to handle the CellParsing event.D
Write a code segment to handle the RowPostPaint event.
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单选题You work as an application developer at Certkiller .com. You have been given the task of developing a Windows service application that regularly monitors other Windows services on the same computer. This Windows service application must also log any abnormal file system activity. You have added the following class to the Windows service application： public class EnumerateService ： ServiceBase { public static EnumerateService （） { this.ServiceName = "Enumerate Service"； this.CanStop = true； } protected override void OnStart （string[] args） { // Enumerate all services and initialize the FileSystemWatcher } protected override void OnStop （） { // Stop the FileSystemWatcher and perform cleanup } public static void Main （） { EnumerateService service = new EnumerateService（）； } } You then create the installer for the Windows service application， and install the Windows service application. You have configured the Windows service Startup type to Automatic， and rebooted the system. You then test the new Windows service application， and find that it is not working.You need to ensure that the service is working properly. What should you do？（）A
Override the OnBoot method instead of the OnStart method.B
Replace the Main method code with the following code： EnumerateService service = new EnumerateService （）； Service.Run （）；C
Override the OnLoad method instead of the OnStart method.D
Replace the Main method code with the following code： EnumerateService service = new EnumerateService （）； Run （service）；
考题
单选题In INMASAT-A service code 32（）.A
medical assistanceB
medical adviseC
maritime assistanceD
technical assistance
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