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Jumat, 11 Februari 2011

IT II chapter1

1 Though obsolete in current desktop environments, what are three valid reasons for the continued use of MS-DOS? (Choose three.)
*MS-DOS supports legacy applications.
MS-DOS is an intuitive, high-overhead operating system.
MS-DOS rarely crashes because it is a multitasking operating system.
*MS-DOS is relatively easy to use.
*MS-DOS can run on inexpensive hardware.

2 What are three reasons why a company may choose Linux over Windows as an operating system? (Choose three.)
*The entire Linux installation can be completed using either a GUI or CLI.
The entire Windows installation can be completed using either a GUI or CLI.
Windows can be run entirely from a CD.
*Compared to Windows, Linux is virtually virus-free.
*Linux is a true multi-user system.
Linux has superior one-dimensional security.

3 Which acronyms describe the two general categories of OS user interfaces?
DOS and UNIX
DOS and GUI
UNIX and GUI
*CLI and GUI

4 What is a beneficial feature of preemptive multitasking?
Applications share the use of the processor by time slicing.
The processor dynamically adjusts the amount of memory needed by the application programs.
Application programs share memory addresses and exchange information.
*The operating system controls the allocation of processor time.

5 Which part of the OS, loaded into memory at boot time, controls memory allocation?
user interface
application software
*kernel
file system


6 Network operating systems were designed to provide which of the following tasks? (Select three.)
*file security
multitasking
*user privileges
resource access for a single user
*resource sharing among multiple users


7 What is meant by the statement, "We have to support our legacy system"?
Support must be provided for the newest Linux system.
Support must be provided for the system called legacy.
Support must be provided for the newest Microsoft system.
*Support must be provided for outdated software.

8 From which Windows configuration tool can a user perform hardware and network configurations?
Window Manager
My Computer
*Control Panel
Task Manager

9 Which two of the following statements are true? (Choose two.)
Linux is a true 16-bit operating system that uses preemptive multitasking.
Linux supports all Windows applications through the use of cooperative multitasking.
*Linux operating system code is available for anyone to modify and use.
Linux is a true 48-bit operating system that uses minimal virtual memory.
*Linux is a true 32-bit operating system that uses preemptive multitasking.

10 Which of the following is generally regarded as the standard GUI for Linux?
Red Hat Desktop
CDE
*GNOME
Star Office


11 Which two of the following shells are commonly available for Linux? (Choose two.)
Bore shell
*Korn shell
Cash shell
*C shell
PC shell


12 Which two statements describe security in the Windows operating system? (Choose two.)
Windows is less susceptible to viruses than Linux.
By default, users must have a username and password to log into Windows.
Windows security is generally one dimensional.
Windows security is improved through the use of third-party applications.
Windows can securely support multiple users with the Terminal service installed by default on personal computers.

13 Which two statements describe the security features of Linux? (Choose two.)
*Compared to Windows, Linux is virtually virus-free.
*Users must have a valid username and password to log into a Linux system, by default.
Linux security is one dimensional.
Most security features for Linux must be purchased from a third party.


14 Which of the following is a valid concern for a company considering a move from Windows to Linux?
Linux generally allows companies to recycle old hardware and software.
Users may need special training to become productive with Linux.
Special third party software may be necessary to secure and configure Linux.
Linux generally requires more disk space than Windows.

15 Windows and Linux both use a file system that resembles an upside-down tree. What is the name of this type of file structure?

binary
*hierarchical
empirical
subsystem

16 What is the main reason FAT32 was created?
New operating systems required the use of filenames greater than eight characters.
*Earlier versions of FAT used disk space inefficiently.
FAT32 was needed to support drives up to 4 GB.
The maximum length of file extensions needed to be increased to three characters.

17 Which three of the following file systems does Windows 2000 use? (Choose three.)
EXT2
*FAT16
*FAT32
NTFS
HPFS

18 With the FAT file system, what is the basic unit of logical storage on a disk?
megabyte
*cluster
directory
logical drive

19 When compared to a command line interface, what is a major disadvantage of a GUI?
It requires an understanding of commands.
*It requires more memory and storage space.
It is more difficult to use.
Most server operating systems do not support a GUI.


20 Which command is entered in the Run dialog box of a Windows XP system to open a command prompt window?
run
start
*cmd
dosprompt

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