Deck 8: Exploring the Unix-Linux Utilities

Question 1

When you use the du utility,file usage is expressed in the number of ____-byte blocks (default)or by the number of bytes (the -b option).

A)512
B)1024
C)2048
D)4096

Answer 1

A

Question 2

The ____ option of the ispell utility is used to ignore concatenated words.

A)-c
B)-C
C)-i
D)-I

Answer 2

B

Question 3

Most computers store text using EBCDIC codes.

Answer 3

False

Question 4

To run a program in the background,append the ____ character to the end of the command used to start the program.

A)&
B)*
C)$
D)@

Question 5

The ____ command displays the amount of free and used memory in the system.

A)mem
B)stat
C)memstat
D)free

Question 6

The ____ command displays a listing of the most CPU-intensive tasks,such as the processor state,in real time (the display is updated every five seconds by default).

A)stat
B)netstat
C)top
D)ds

Question 7

When you use restore,by default it copies back to your current working directory.

Question 8

____ is the default file name for the output of program compilation procedures.

A)out.a
B)obj.a
C)a.out
D)a.obj

Question 9

dump level ____ is used to back up all files.

A)0
B)1
C)9
D)10

Question 10

One of the most effective utilities for auditing system performance is the top command.

Question 11

The df utility reports the number of ____-byte blocks that are allocated,used,and available;the percentage used;and the mount point-for mounted file systems.

A)512
B)1024
C)2048
D)4096

Question 12

The ____ utility maintains program source code.

A)make
B)patch
C)gcc
D)configure

Question 13

Unlike top,the free utility runs and then automatically exits.

Question 14

An IP address uses a dotted decimal notation that consists of 16-bit binary numbers (octets)separated by periods used to identify a computer or network device and the network it is on.

Question 15

You can use the ____ utility to compare the contents of two files,and if there is a difference,the command reports the location at which the files first start to differ.

A)cmp
B)compare
C)diff
D)difference

Question 16

The top utility continues to produce output until you press x to terminate the execution of the program.

Question 17

Possessing a rich set of options that allow it to handle copies when other methods are inappropriate,the ____ command can handle conversions to and from legacy EBCDIC to ASCII.

A)tee
B)convert
C)dd
D)df

Question 18

The ____ utility manages concurrent access to files in a hierarchy.

A)tree
B)rlog
C)rcs
D)cvs

Question 19

The ____ utility manages a firewall and packet filtering.

A)iptables
B)netstat
C)passwd
D)wall

Question 20

The ____ utility schedules a command to run at a preset time.

A)batch
B)crontab
C)call
D)at

Question 21

To start a service,you can use the ____ command from the root account.

A)service
B)start
C)stat
D)exec

Question 22

A(n)____ enables services and software on one computer to use services and software on a different computer.

A)NFS
B)RPC
C)Samba
D)SMB

Question 23

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
backs up files

Question 24

The ____________________ utility configures program source code automatically.

Question 25

The ____ utility gathers statistics and information about IP communications on a computer.

A)ping
B)netstat
C)traceroute
D)ifconfig

Question 26

When a client mounts an NFS volume from a host,both the client and host use ____________________ (RPCs).

Question 27

The ____ utility offers a simple way to test connections.

A)ifconfig
B)test
C)netstat
D)ping

Question 28

UNIX-Linux computers can access shared Windows system drives through the use of ____.

A)RPC
B)NFS
C)IP
D)Samba

Question 29

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
displays the amount of free space remaining on disk

Question 30

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
summarizes file space usage

Question 31

IP stands for ____________________.

Question 32

Linux provides ____________________,which implements the features of both nroff and troff.

Question 33

The ____ option of the ping command displays only a summary of the results.

A)-s
B)-r
C)-c
D)-q

Question 34

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
copies and converts input records

Question 35

While running,the top command supports interactive commands such as ____________________,which kills a running process.

Question 36

One use of ____ is to get a general idea of how efficiently your network is designed.

A)ping
B)netstat
C)traceroute
D)ifconfig

Question 37

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
compares two files

Question 38

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
processes embedded text formatting codes

Question 39

Samba is a utility that uses the ____ protocol,which is also used by Windows systems for sharing folders and printers.

A)RPC
B)NFS
C)IP
D)SMB

Question 40

When you need to back up lots of files and directories or you want to do a full system backup,you can use the ____________________ utility from the command line.

Question 41

What is a firewall?

Question 42

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
displays process status by process identification number and name

Question 43

How can you use remove garbage files from your system?

Question 44

When would you use dd instead of cp?

Question 45

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
lets users simultaneously type messages to each other

Question 46

What is a PID?

Question 47

What is the uptime command used for?

Question 48

What is a core file?

Question 49

Match each item with a statement below.
a.df
f.dump
b.ifconfig
g.du
c.dd
h.cmp
d.groff
i.talk
e.ps
sets up a network interface

Question 50

What is the traceroute utility used for?

Question 51

What is NFS?

Question 52

What happens when you use the ps command with no options?

Question 53

What are garbage files?

Question 54

What happens if you use du without options?