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Q:

What is the output of this C code?

        #include <stdio.h>
        void main()
        {
            int y = 3;
            int x = 5 % 2 * 3 / 2;
            printf("Value of x is %d", x);
        }

A) Value of x is 1 B) Value of x is 2
C) Value of x is 3 D) Compile time error
 
Answer & Explanation Answer: A) Value of x is 1

Explanation:
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Filed Under: Programming

Q:

You provide technical support for a company with several locations. In a remote sales office, there are 5 Windows 2000 Professional computers. All computers are connected in a workgroup, as shown in the exhibit. (See the exhibit below). The manager's computer has a 56K dial up connection to the Internet. The manager calls and explains that she had enabled ICS (Internet Connection Sharing) on her computer. Once ICS had been enabled, none of the other users were able to access a shared folder on the manager's computer. What should you instruct her to do ?

 

A) Configure the dial-up connection to disable shared access. B) Configure the dial-up connection to disable on-demand dialing.
C) Disable data encryption in the new dial-up connection. D) Use the ipconfig command to release and renew your network TCP/IP address.
 
Answer & Explanation Answer: A) Configure the dial-up connection to disable shared access.

Explanation:
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Q:

You have a server that runs Windows Server 2003 Service Pack 2 (SP2). The server is configured as shown in the following table.

You need to create a software mirror of Disk1. What should you do first?

A) Convert Disk3 to a dynamic disk. B) Create a new NTFS volume on Disk3.
C) Run the Extend Volume Wizard on Disk1. D) Convert Disk3 to a GUID Partition Table (GPT) disk.
 
Answer & Explanation Answer: A) Convert Disk3 to a dynamic disk.

Explanation:
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Q:

Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 (SP2). All client computers run Windows XP Professional Service Pack 3 (SP3). On a file server, you have a shared folder named Data. The Data folder has the permissions shown in the following table:

You need to ensure that members of a group named Sales can modify content in the Data share. Sales group members must only be allowed to delete files that they create. Which additional permission should you assign to the Sales group?

A) On the Data folder, allow the Write permission. B) On the Data folder, allow the Modify permission.
C) On the Data share, allow the Change permission. D) On the Data share, allow the Full Control permission.
 
Answer & Explanation Answer: A) On the Data folder, allow the Write permission.

Explanation:
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Q:

You are an administrator of a SQL Server 2000 computer. The server contains a database that stores inventory data. Another database administrator has created a number of scheduled jobs to maintain the inventory database. Each weeknight the following jobs occur.


- A BULK INSERT job imports data at 10:00 P.M
- Indexes are rebuilt at 10:15 P.M
- Data integrity checks are performed at 10:30 P.M
- A differential backup is performed at 10:45 P.M
- A DBCC SHRINKDATABASE job runs at 11:00 P.M.


You notice that the final job often fails and returns the following error message: "Server: Msg 3140, Level 16, State 3. Could not adjust the space allocation for file  'inventory_data'."You need to ensure that the final job runs without errors.

What should you do?

A) Modify the DBCC SHRINKDATABASE job so that it uses DBCC SHRINKFILE statement to shrink each file individually. B) Create a new DBCC SHRINKFILE job to shrink the inventory_data file. Schedule the new job to run at the same time as the DBCC SHRINKDATABASE job.
C) Increase the time between the differential backup and the DBCC SHRINKDATABASE job. D) Increase the time between the data integrity checks and the differential backup.
 
Answer & Explanation Answer: C) Increase the time between the differential backup and the DBCC SHRINKDATABASE job.

Explanation:

The DBCC SHRINKDATABSE cannot be executed until the previous job step, the differential backup, has been completed. We should increase the time between these two job steps, or even better configure the last job step to run only after the differential backup has been completed.

 

Note: The DBCC SHRINKDATABASE statement shrinks data files on a per-file basis but shrinks log files as if all the log files existed in one contiguous log pool. The target size for the data and log files cannot be smaller than the minimum size of a file that was specified when the file was originally created, or the last explicit size set with a file size changing operation such as the ALTER DATABASE statement with the MODIFY FILE option or the DBCC SHRINKFILE statement.

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Q:

You are the administrator of a Microsoft Windows NT Server 4.0 computer. The server is the PDC in your domain and also runs SQL Server 2000. The server has four processors and 1 GB of RAM.Your network consists of 500 client computers that are running Microsoft Windows Millennium Edition. Users report that when they log on in the morning their computers respond slowly and occasionally return error messages.You use System Monitor to monitor processor performance and RAM utilization. You discover that the % Total Time and % User Time counters average 90 percent and the % Privileged Time counter averages 20 percent. The Available Mbytes counter averages 800 MB. You need to improve server performance for user logons. What should you do?

A) Increase the physical RAM on the computer to 2 GB. B) Increase the virtual RAM on the computer to 4 GB.
C) Configure SQL Server to use only processors 0, 1, and 2. D) Configure SQL Server to use only processors 1, 2, and 3.
 
Answer & Explanation Answer: D) Configure SQL Server to use only processors 1, 2, and 3.

Explanation:

The system monitor clearly indicates that the processors are overloaded. We need to decide which processors we should use for SQL Server. Processor 0 is the default CPU for the I/O subsystem. Network Interface Cards (NIC) are assigned to the remaining CPUs, starting from the highest-numbered CPU. The NIC would get processor 3.
SQL Server would be using all four processors by default.

The Windows NT/2000/XP operating system use processor 0. In order to avoid the logon
problems we should not let SQL Server to use this processor. Instead SQL Server should be configured to use processor 1, 2, and 3.

Note 1: The Affinity mask is used to exclude a processor on a multiprocessor computer from processing SQL Server 2000 threads. Default is equal distribution of SQL Server 2000 processes across all processors.

Note 2: Monitoring the Processor and System object counters provides information about the CPU utilization and helps in determining whether or not a bottleneck exists. The %Total Processor Time is used on multiple CPU Severs to gauge the average activity of the processors and shows the percentage of elapsed time that a processor is busy executing a nonidle thread. Values around 100 percent on a Server computer that processes many client requests indicate that processes are queuing up, waiting for processor time, and causing a bottleneck. Such a sustained high level of processor usage is unacceptable for a server.

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Q:

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an
application. You use the ADO.NET Entity Framework to model entities. You write the following code segment. (Line numbers are included for reference only.)


01AdventureWorksEntities context = New AdventureWorksEntities
02
03var q = from c in context.Customers
04where c.City == "London"
05orderby c.CompanyName
06select c;


You need to ensure that the application meets the following requirements: "Compares the current values of unmodified properties with values returned from the data source". Marks the property as modified when the properties are not the same. Which code segment should you insert at line 02?

A) context.MergeOption = MergeOption.AppendOnly; B) context.MergeOption = MergeOption.PreserveChanges;
C) context.MergeOption = MergeOption.OverwriteChanges; D) context.MergeOption = MergeOption.NoTracking;
 
Answer & Explanation Answer: B) context.MergeOption = MergeOption.PreserveChanges;

Explanation:
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Q:

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an
application. The application connects to a Microsoft SQL Server database. The application has two DataTable objects that reference the Customers and Orders tables in the database. The application contains the following code segment. (Line numbers are included for reference only.)


01DataSet customerOrders = new DataSet();
02customerOrders.EnforceConstraints = true;
03ForeignKeyConstraint ordersFK = new ForeignKeyConstraint("ordersFK",
04customerOrders.Tables["Customers"].Columns["CustomerID"],
05customerOrders.Tables["Orders"].Columns["CustomerID"]);
06
07customerOrders.Tables["Orders"].Constraints.Add(ordersFK);


You need to ensure that an exception is thrown when you attempt to delete Customer records that have related Order records. Which code segment should you insert at line 06?

A) ordersFK.DeleteRule = Rule.SetNull; B) ordersFK.DeleteRule = Rule.None;
C) ordersFK.DeleteRule = Rule.SetDefault; D) ordersFK.DeleteRule = Rule.Cascade;
 
Answer & Explanation Answer: B) ordersFK.DeleteRule = Rule.None;

Explanation:
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