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Operating System Structure Questions and Answers

31.

In Win32, which function is used to create Windows Applications ?

Exam Year(s)

UGC NET - 2012,

Answer: C

In Win32, a Windows application starts from the function WinMain, which is the entry point (in place of main) and which sets up the window class and creates the windows. Win API is the name for the whole interface of functions, not a function that creates an application, and WinApp and Win Void are not functions of the Win32 interface. The keyed answer is WinMain.

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32.

Everything below the system call interface and above the physical hardware is known as ______.

Exam Year(s)

UGC NET - 2012,

Answer: A

Everything below the system call interface and above the physical hardware is the kernel. The kernel contains the core services of the operating system, such as the process management, memory management and device drivers, and the system calls are the interface through which programs ask for them. The shell is above the interface, as a program that takes commands, a bus is a piece of hardware and a stub is a piece of code in a remote call. The keyed answer is the kernel.

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33.

Which of the following operating system is better for implementing client-server network ?

Exam Year(s)

UGC NET - 2012,

Answer: C

Windows 2000 is the better operating system for implementing a client-server network, since it is a network operating system with domain support, directory services and security, which are the features a server needs. Windows 95 and 98 were desktop systems with weak security and limited server features, so they suit a client more than a server. The option 'all of these' is therefore not right. The keyed answer is Windows 2000.

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34.

______ is sometimes said to be object oriented, because the only way to manipulate kernel objects is by invoking methods on their handles.

Exam Year(s)

UGC NET - 2012,

Answer: A

Windows NT is sometimes said to be object oriented, because in it the only way to manipulate kernel objects, such as processes, threads, files and events, is by invoking methods on their handles. The key gives Windows NT, option (A), and the other options name later or earlier members of the Windows family. The kernel object model is that of the NT line, and this is the sense in which the statement is made about the NT system itself. The answer is Windows NT, option (A), as the key gives it.

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35.

What is the meaning of 'Hibernate' in Windows XP/Windows 7 ?

Exam Year(s)

UGC NET - 2012,

Answer: D

Hibernate in Windows XP and Windows 7 shuts the computer down after saving the contents of memory to the hard disk, so that the running applications and open documents are restored when it is started again. So it shuts down the computer without closing the running applications, option (D). It is not a restart in safe or normal mode, and the shutdown that terminates all the running applications is the ordinary shut down, which does not save the state.

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36.

Which one of the following options is not a shell in UNIX system ?

Exam Year(s)

UGC NET - 2012,

Answer: C

The Bourne shell (sh), the C shell (csh) and the Korn shell (ksh) are all command interpreters, or shells, found on UNIX systems, and bash, the Bourne-again shell, is another. 'Net Shell' is not a UNIX shell: netsh is the name of a command line tool for network settings on Windows. So the option that is not a shell in a UNIX system is Net Shell, option (C), and the other three options are real shells.

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37.

In which file the compiler manage the various objects, which are used in windows programming ?

Exam Year(s)

UGC NET - 2012,

Answer: C

The key gives the text file, option (C). The compiler for Windows programming keeps the objects the program uses, such as menus, dialog boxes, icons and strings, in a resource script, which is a plain text file that the resource compiler turns into a binary form. A control file, a binary file or an object file is not the file in which these objects are described. The item is a recall question and the key is followed.

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38.

In Unix, how do you check that two given strings a and b are equal ?

Exam Year(s)

UGC NET - 2013,

Answer: C

In Unix, two strings are compared for equality with test $a = $b, which is option C. The test command uses = for string comparison, while -eq is the operator for comparing integers.

The operator -equal does not exist, and "Sh -C test $a == $b" is not the usual form, since == is not accepted by the standard test command and the shell option is -c, not -C. Hence only option C is correct.

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39.

In windows 2000 operating system all the processor-dependent code is isolated in a dynamic link library called

Exam Year(s)

UGC NET - 2013,

Answer: B

In Windows 2000 all the processor-dependent code is isolated in a dynamic link library called the Hardware Abstraction Layer (HAL). It hides differences between hardware platforms, such as interrupt controllers and processors, from the rest of the operating system.

NTFS is a file system, the microkernel handles scheduling and low-level control, and the Process Manager creates and terminates processes, so none of them is the place where the hardware dependence is isolated.

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40.

To place a sound into a word document, following feature of windows is used :

Exam Year(s)

UGC NET - 2013,

Answer: D

To place a sound into a Word document, the feature of Windows used is OLE (Object Linking and Embedding). OLE lets an object created by one application, such as a sound clip, be embedded in or linked to a document of another application.

The clipboard only transfers data by copy and paste, task switching moves between running programs, and "C Win App" is not a Windows feature for embedding objects.

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