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Computer Interview Questions Answers

Computer Interview Questions Answers

Question - 41 : - What is CTS ?

Answer - 41 : - Compatibility test suite. A suite of compatibility tests for verifying that a J2EE product complies with the J2EE platform specification.

Question - 42 : - Where is the backslash key located on my keyboard?

Answer - 42 : - The backslash key is located near the "Enter" or "Return" key on most keyboards. It is most often found directly to the left of the Enter key, but can also be placed below or above the enter key. The backslash key is located directly above the the Return key on Apple keyboards. It is important to differentiate between the backslash and the forward slash keys. The backslash key has a "pipe" character above it, which is a straight vertical line. The forward slash key has a question mark above it. Forward slashes are used to designate directories in URLs, i.e. http://www.exammaterial.com/compter/computer.aspx, while backslashes are used do designate Windows directories, like you may see in Windows Explorer, i.e. C:\Program Files\. Backslash: \ Forward slash: /

Question - 43 : - How can I call one EJB from inside of another EJB?

Answer - 43 : - EJBs can be clients of other EJBs. It just works. Use JNDI to locate the Home Interface of the other bean, then acquire an instance reference, and so forth.

Question - 44 : - How can I print to a printer connected to an Airport Base Station ?

Answer - 44 : - The Airport Extreme and Airport Express Base Stations both have a built-in USB port that allows you to connect a printer. Whatever printer you decide to connect to an Airport Base Station will be available to all computers connected to the Base Station. In order to print to an Airport printer, you first need to make sure your computer is connected to the wireless router (the base station) either wirelessly, or directly with an Ethernet cable. If you are using a Mac, you can simply select the Base Station from the drop-down menu by clicking the Airport icon in the upper right-hand corner of the screen. Windows should allow you to choose the Base Station if you click the wireless network icon in the systray, located in the lower-right part of the screen. The second thing you need to do is make sure the printer drivers for the printer are installed on the computer. Your computer will not recognize the wireless printer if you have not installed the correct drivers. You should be able to use the disc(s) that came with the printer or download the drivers from the manufacturer's website. After installing the drivers, you may need to restart your computer. Once you've installed the printer drivers and established a network connection with the Airport Base Station, you should be able to print to the wireless printer. Just select "Print..." in whatever program you want to print from and then choose the printer from the list in the dialog box that pops up. The computer should recognize the printer as if it was connected directly to the machine. Once you click "Print," the file will get sent to the Base Station and the printer connected to it will print the document.

Question - 45 : - What is wide-mouth frog?

Answer - 45 : - Wide-mouth frog is the simplest known key distribution center (KDC) authentication protocol.

Question - 46 : - How do I check how much memory my computer has?

Answer - 46 : - The amount of memory, or RAM, installed in your computer can significantly affect its performance. For example, having several programs open at the same time may cause your computer to slow down if all the memory is being used. Having too little memory may also prevent you from being able to open applications that require a lot of RAM. (This information is typically listed in the program's system requirements). Therefore, it is helpful to know how much memory is installed in your computer. In Windows, you can view the amount of memory installed in your computer by right-clicking "My Computer" and selecting "Properties..." A window will open with the amount of RAM displayed underneath the "Computer" section of the window. This window can also be viewed by opening the "System" Control Panel. If you want to see how much memory your Windows computer is using, you can open the Windows Task Manager by pressing Control-Alt-Delete or Control-Shift-Esc. You can also right-click the Taskbar and select "Task Manager." Once the Task Manager is open, click the "Performance" tab to view how much physical memory is installed in your computer and how much is available. In Mac OS X, you can view the amount of memory your computer has by simply selecting "About This Mac" from the Apple Menu. The amount of memory is displayed beneath the processor information. If you click "More Info..." the System Profiler will open. You can then select the "Memory" option in the sidebar to view what types of memory modules are installed in each slot. To see how much RAM you Mac is using, open the Activity Monitor application in the Utilities folder. Select the "System Memory" tab near the bottom of the window to view how much memory is being used and how much is available. The "RSIZE" field in the main section of the window indicates how much memory each process is using. This can help you determine which programs use the most memory.

Question - 47 : - What is another name for a motherboard?

Answer - 47 : -  A system board is another name for a computer motherboard.

Question - 48 : - Which below file extension is not a type of compressed file?

Answer - 48 : - The .tar file extension is not a type of compressed file, it is actually a single file that contains a group of files that is uncompressed.

Question - 49 : - Invention of mouse.

Answer - 49 : - The computer mouse as we know it today was invented and developed by Douglas Englebart during the 60's and was patented on November 17, 1970. While creating the mouse Douglas was working at the Stanford Research Institute, a think tank sponsored by Stanford University and originally referred to the mouse as a "X-Y Position Indicator for a Display System." This mouse was first used with the Xerox Alto computer system in 1973. However, because of its lack of success the first widely used mouse is credited to being the mouse found on the Apple Lisa computer. Today, the mouse is now found and used on every computer.  

Question - 50 : - How many keys does the standard Windows US keyboard with number pad have?

Answer - 50 : - With the three Microsoft Windows keys, function keys, and the keys found on the number pad the standard Windows US keyboard has 104 keys. Keyboards for different places in the world and with additional features such as media buttons may have more or less keys.

Computer Contributors

Rajeev Katiyar
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