IFT 250 FINAL EXAM WITH
QUESTIONS AND ANSWERS WRITTEN
CORRECTLY
The ________ interacts with the hardware and the _________ interacts with the user - correct answer
<<<<<💕💕💕✔✔operating system, Shell
A program is synonymous with a process. True or false? - correct answer <<<<<💕💕💕✔✔False
Every character has a number associated with it. What is it called? - correct answer
<<<<<💕💕💕✔✔the ASCII value
If you see a prompt like mailhost login:, what do you think mailhost represents? - correct answer
<<<<<💕💕💕✔✔The machine name
If the system echoes Login incorrect, does it mean that your user-id is incorrect? - correct answer
<<<<<💕💕💕✔✔Not necessarily, the password could be incorrect
Name the command you used in this chapter to display filenames. - correct answer
<<<<<💕💕💕✔✔ls
Name the command you used in this chapter to display processes - correct answer
<<<<<💕💕💕✔✔ps
Name the command you used in this chapter to display users. - correct answer
<<<<<💕💕💕✔✔who
Who are the principal architects of the UNIX operating system? - correct answer
<<<<<💕💕💕✔✔Ken Thompson and Dennis Ritchie
,Why did AT&T virtually give away UNIX to the world? - correct answer <<<<<💕💕💕✔✔Because it
was prevented byt the US government from selling computer software
Where did BSD UNIX originate? Name some features of UNIX that were first found in BSD UNIX - correct
answer <<<<<💕💕💕✔✔From the University of California, Berkeley.
vi editor, C shell, symbolic links, and TCP/IP
Which flavor of UNIX is available for free and runs on the PC? - correct answer
<<<<<💕💕💕✔✔Linux
Identify the companies associated with Solaris UNIX. - correct answer <<<<<💕💕💕✔✔Sun
Identify the companies associated with AIX UNIX - correct answer <<<<<💕💕💕✔✔IBM
Identify the companies associated with Tru64 UNIX - correct answer <<<<<💕💕💕✔✔HP (Digital)
What does X/OPEN represent? Who owns the UNIX trademark today? - correct answer
<<<<<💕💕💕✔✔a standards body now merged with The Open Group which owns the UNIX
trademark
Who are the two brains behind Linux? - correct answer <<<<<💕💕💕✔✔Richard Stallman and
Linus Torvalds
What is the distinctive characteristic about the GNU General Public License? - correct answer
<<<<<💕💕💕✔✔Software developers distributing products under this license must make the
source code public.
Why is UNIX more portable than other operating systems? - correct answer
<<<<<💕💕💕✔✔Because it is written in C, a high-level language (high-level lanuage can run
without major modifications when moved to another machine.
,Can you divide UNIX into two major schools? To which school does Sun's UNIX belong? - correct answer
<<<<<💕💕💕✔✔Yes, System V (AT&T) and BSD (Berkeley): Sun is based on BSD but Solaris is
based on AT&T's SVR4
Why do UNIX tools perform simple jobs rather than complex ones? - correct answer
<<<<<💕💕💕✔✔because complex jobs can be completed by connecting a number of these simple
ones.
What is the windowing system of UNIX known as? - correct answer <<<<<💕💕💕✔✔The X
Window system
Name some interpretive languages available on UNIX systems. - correct answer
<<<<<💕💕💕✔✔The shell, perl, tcl, and python
Name three notable Linux flavors. - correct answer <<<<<💕💕💕✔✔Fedora, SuSE, Ubuntu
2.1 Enter a : and press [Enter]. Next run type :. What do you conclude? - correct answer
<<<<<💕💕💕✔✔The : must be a command that does nothing. The command type : indicates that
the command is built into the shell.
2.2 UNIX commands must be in lowercase and must not have extensions. True or false? - correct
answer <<<<<💕💕💕✔✔False, you can use uppercase and provide extensions to command
filenames, although convention follows the opposite
2.3 Name three UNIX commands whose names are more than five characters long. - correct answer
<<<<<💕💕💕✔✔printf, script, and passwd.
2.4 Find out whether these commands are internal or external: echo, date, pwd, and ls. - correct answer
<<<<<💕💕💕✔✔echo and pwd are internal commands; date and ls are external.
, 2.5 If two commands with the same filename exist in two directories in PATH, how can they be
executed? - correct answer <<<<<💕💕💕✔✔The command that occurs first in the PATH list would
require no special treatment. The other command needs to be used with a pathname.
2.6 How is the current directory indicated in PATH? - correct answer <<<<<💕💕💕✔✔With a dot.
2.7 How many options are there in this command? ls -lut chap01 note3 - correct answer
<<<<<💕💕💕✔✔Three.
2.8 If you find yourself using options preceded by two hyphens (like --all), which flavor of UNIX could you
be using? - correct answer <<<<<💕💕💕✔✔Linux.
2.9 What is the name given to the command and its options and arguments? - correct answer
<<<<<💕💕💕✔✔The command line.
2.10 How do you find out the version number of your operating system? - correct answer
<<<<<💕💕💕✔✔uname -r.
2.11 Why are the directories /bin and /usr/bin usually found first in PATH? - correct answer
<<<<<💕💕💕✔✔Because the commonly used UNIX commands are located there.
2.12 What is whitespace? Explain the treatment the shell metes out to a command that contains a lot of
whitespace. - correct answer <<<<<💕💕💕✔✔Whitespace is a contiguous set of spaces, tabs, and
newline characters. The shell compresses multiple contiguous whitespace characters into a single space.
2.13 Do you need to wait for a command to finish before entering the next one? - correct answer
<<<<<💕💕💕✔✔No, the buffer associated with the keyboard stores all input.
2.14 Why doesn't this command run in the way it is meant to? printf "Filename: %s\n", fname - correct
answer <<<<<💕💕💕✔✔fname is supposedly a variable, so it should be prefixed with a $.
QUESTIONS AND ANSWERS WRITTEN
CORRECTLY
The ________ interacts with the hardware and the _________ interacts with the user - correct answer
<<<<<💕💕💕✔✔operating system, Shell
A program is synonymous with a process. True or false? - correct answer <<<<<💕💕💕✔✔False
Every character has a number associated with it. What is it called? - correct answer
<<<<<💕💕💕✔✔the ASCII value
If you see a prompt like mailhost login:, what do you think mailhost represents? - correct answer
<<<<<💕💕💕✔✔The machine name
If the system echoes Login incorrect, does it mean that your user-id is incorrect? - correct answer
<<<<<💕💕💕✔✔Not necessarily, the password could be incorrect
Name the command you used in this chapter to display filenames. - correct answer
<<<<<💕💕💕✔✔ls
Name the command you used in this chapter to display processes - correct answer
<<<<<💕💕💕✔✔ps
Name the command you used in this chapter to display users. - correct answer
<<<<<💕💕💕✔✔who
Who are the principal architects of the UNIX operating system? - correct answer
<<<<<💕💕💕✔✔Ken Thompson and Dennis Ritchie
,Why did AT&T virtually give away UNIX to the world? - correct answer <<<<<💕💕💕✔✔Because it
was prevented byt the US government from selling computer software
Where did BSD UNIX originate? Name some features of UNIX that were first found in BSD UNIX - correct
answer <<<<<💕💕💕✔✔From the University of California, Berkeley.
vi editor, C shell, symbolic links, and TCP/IP
Which flavor of UNIX is available for free and runs on the PC? - correct answer
<<<<<💕💕💕✔✔Linux
Identify the companies associated with Solaris UNIX. - correct answer <<<<<💕💕💕✔✔Sun
Identify the companies associated with AIX UNIX - correct answer <<<<<💕💕💕✔✔IBM
Identify the companies associated with Tru64 UNIX - correct answer <<<<<💕💕💕✔✔HP (Digital)
What does X/OPEN represent? Who owns the UNIX trademark today? - correct answer
<<<<<💕💕💕✔✔a standards body now merged with The Open Group which owns the UNIX
trademark
Who are the two brains behind Linux? - correct answer <<<<<💕💕💕✔✔Richard Stallman and
Linus Torvalds
What is the distinctive characteristic about the GNU General Public License? - correct answer
<<<<<💕💕💕✔✔Software developers distributing products under this license must make the
source code public.
Why is UNIX more portable than other operating systems? - correct answer
<<<<<💕💕💕✔✔Because it is written in C, a high-level language (high-level lanuage can run
without major modifications when moved to another machine.
,Can you divide UNIX into two major schools? To which school does Sun's UNIX belong? - correct answer
<<<<<💕💕💕✔✔Yes, System V (AT&T) and BSD (Berkeley): Sun is based on BSD but Solaris is
based on AT&T's SVR4
Why do UNIX tools perform simple jobs rather than complex ones? - correct answer
<<<<<💕💕💕✔✔because complex jobs can be completed by connecting a number of these simple
ones.
What is the windowing system of UNIX known as? - correct answer <<<<<💕💕💕✔✔The X
Window system
Name some interpretive languages available on UNIX systems. - correct answer
<<<<<💕💕💕✔✔The shell, perl, tcl, and python
Name three notable Linux flavors. - correct answer <<<<<💕💕💕✔✔Fedora, SuSE, Ubuntu
2.1 Enter a : and press [Enter]. Next run type :. What do you conclude? - correct answer
<<<<<💕💕💕✔✔The : must be a command that does nothing. The command type : indicates that
the command is built into the shell.
2.2 UNIX commands must be in lowercase and must not have extensions. True or false? - correct
answer <<<<<💕💕💕✔✔False, you can use uppercase and provide extensions to command
filenames, although convention follows the opposite
2.3 Name three UNIX commands whose names are more than five characters long. - correct answer
<<<<<💕💕💕✔✔printf, script, and passwd.
2.4 Find out whether these commands are internal or external: echo, date, pwd, and ls. - correct answer
<<<<<💕💕💕✔✔echo and pwd are internal commands; date and ls are external.
, 2.5 If two commands with the same filename exist in two directories in PATH, how can they be
executed? - correct answer <<<<<💕💕💕✔✔The command that occurs first in the PATH list would
require no special treatment. The other command needs to be used with a pathname.
2.6 How is the current directory indicated in PATH? - correct answer <<<<<💕💕💕✔✔With a dot.
2.7 How many options are there in this command? ls -lut chap01 note3 - correct answer
<<<<<💕💕💕✔✔Three.
2.8 If you find yourself using options preceded by two hyphens (like --all), which flavor of UNIX could you
be using? - correct answer <<<<<💕💕💕✔✔Linux.
2.9 What is the name given to the command and its options and arguments? - correct answer
<<<<<💕💕💕✔✔The command line.
2.10 How do you find out the version number of your operating system? - correct answer
<<<<<💕💕💕✔✔uname -r.
2.11 Why are the directories /bin and /usr/bin usually found first in PATH? - correct answer
<<<<<💕💕💕✔✔Because the commonly used UNIX commands are located there.
2.12 What is whitespace? Explain the treatment the shell metes out to a command that contains a lot of
whitespace. - correct answer <<<<<💕💕💕✔✔Whitespace is a contiguous set of spaces, tabs, and
newline characters. The shell compresses multiple contiguous whitespace characters into a single space.
2.13 Do you need to wait for a command to finish before entering the next one? - correct answer
<<<<<💕💕💕✔✔No, the buffer associated with the keyboard stores all input.
2.14 Why doesn't this command run in the way it is meant to? printf "Filename: %s\n", fname - correct
answer <<<<<💕💕💕✔✔fname is supposedly a variable, so it should be prefixed with a $.
