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Chapter 2: Software Components
TRUE/FALSE
1. A desktop is the main workspace in a graphical user interface.
2. The DOS user interface is a command-line interface (CLI).
3. All modern operating systems support multithreading and multitasking.
4. From the GUI interface, you cannot use a CLI.
5. A program with a very small amount of memory usage must have a memory leak.
MULTIPLE CHOICE
1. Xerox PARC is best known for essentially creating the modern PC ____.
a.
microprocessor
c.
graphical user interface
b.
standard output device
d.
hard drive
2. Fedora 13 owes its parentage to ____.
a.
DOS
c.
MVS
b.
UNIX
d.
VM
3. The ____ desktop is the default desktop for Red Hat's distribution of Fedora 13.
a.
Fluxbox
c.
GNOME
b.
KDE
d.
Windows 7
4. DOS is a(n) ____-mode operating system.
a.
protected
c.
extended
b.
virtual
d.
real
5. Which Windows 7 user mode process exposes native OS system services to user applications?
a.
system support processes
c.
user applications
b.
service processes
d.
environment subsystem
6. Which Windows 7 kernel mode component provides basic OS services, such as memory management,
process and thread management, and security?
a.
executive
c.
device drivers
b.
kernel
d.
hardware abstraction layer
7. Which Fedora Core 13 kernel subsystem enforces a policy that ensures processes will have fair access
to the processor, while ensuring that necessary hardware actions are performed by the kernel on time?
a.
Memory Manager (MM)
c.
Process scheduler (SCHED)
b.
Virtual File System (VFS)
d.
Network interface (NET)
8. In ____ multitasking, the OS executes an application for a specific period of time, according to its
assigned priority.
a.
cooperative
c.
voluntary
b.
preemptive
d.
centralized
9. In ____ multiprocessing systems, several CPUs execute programs and distribute the computing load
over a small number of identical processors.
a.
cooperative
c.
symmetric
b.
synchronous
d.
delegated
10. The amount of memory that can be addressed by the processor is called ____ memory.
a.
logical
c.
random
b.
physical
d.
upper
11. In DOS, you use the ____ command to create a partition and the format command to prepare the
partition for use.
a.
fdisk
c.
scandisk
b.
chkdsk
d.
diskcomp
12. An antivirus agent uses a(n) ____ driver to intercept files that contain viruses.
a.
function
c.
filter
b.
bus
d.
object
13. Fedora 13 organizes files in a hierarchical structure similar to Windows 7, but uses the term ____
instead of folders.
a.
containers
c.
organizers
b.
trees
d.
directories
14. Windows-based operating systems support file-sharing traffic across a network by using the ____
communications protocol.
a.
Samba
c.
TCP/IP
b.
Server Message Block (SMB)
d.
FTP
15. In Windows 7, the ____ is a hierarchical database that contains configuration entries.
a.
Record
c.
Registry
b.
Index
d.
Listing
16. You must edit the /etc/sudoers configuration file using the ____ command.
a.
mount
c.
type
b.
cat
d.
visudo
17. You can use the Fedora 13 ____ to review summary information about the system.
a.
Task Manager
c.
System Profiler
b.
cpuinfo
d.
System Monitor
18. From the ____ tab of the Task Manager in Windows 7, you can quickly review your computer’s CPU
usage and memory usage.
a.
Applications
c.
Performance
b.
Processes
d.
Networking
19. A high CPU usage (consistently over ____ percent) is an indication that the processor speed is
inadequate.
a.
55
c.
75
b.
65
d.
90
20. From the Fedora 13 System Monitor ____ tab, you can view CPU usage and current percentage of
CPU usage.
a.
Resources
c.
System
b.
Processes
d.
File Systems
21. The OpenOffice.org application called ____ is a word processor that has a similar look and feel to
Microsoft Word.
a.
Writer
c.
Works
b.
WordPerfect
d.
Pages
COMPLETION
1. The ____________________ is the essential center of a computer operating system.
2. Newer operating systems like Windows 7 and Fedora 13 were designed to allow multiple programs to
run at the same time, a process called ____________________.
3. Fedora 13 ____________________ devices can be accessed as streams of characters.
4. In Fedora 13, you can use the ____________________ command to review processor activity in real
time.
5. ____________________ is software that is available free of charge for personal use.
MATCHING
Match each item with a statement below.
a.
spooler
f.
home directory
b.
Task Manager
g.
System Monitor
c.
virtual memory
h.
text editor
d.
Impress
i.
System Profiler
e.
page map
1. A Fedora 13 tool used to view information about your PC.
2. Allows Fedora 13 to support processes that use more memory than is available in the system.
3. An internal data structure is used to translate virtual addresses into corresponding physical addresses.
4. Manages queues of print jobs.
5. A user’s data storage location that is provided by the OS.
6. Allows you to enter, modify, and delete data in a text file.
7. Used in Windows 7 to monitor applications and processes that are running on your computer.
8. Used in Fedora 13 to review processor activity in real time.
9. A presentation program that is similar to Microsoft PowerPoint.
SHORT ANSWER
1. If you are studying to become a system administrator, why is it important to learn DOS?
2. What is the basic idea behind open source software?
3. What is a dynamic link library?
4. What functions are provided by the Virtual file system (VFS) in the Fedora 13 system?
5. What is multithreading and why is it advantageous?
6. How does the operating system use paging to enhance the use of memory?
7. Describe the command-line interface (CLI) used in DOS.
8. Describe the functionality provided by the Applications tab of the Task Manager in Windows 7.
9. Provide a high-level description of the Fedora 13 System Monitor.
10. What kinds of applications run on PCs and why are they important?
