CHAPTER-12 : ARCHIVING AND COPYING FILES BETWEEN SYSTEMS
CHAPTER 12
ARCHIVING
AND COPYING FILES BETWEEN SYSTEMS
1.
Archiving and compressing files are useful when
creating backups and transferring data across a network.
a.
True b. False
2.
With ---- command, users can gather large sets
of files into a single file (archive).
a.
gip b. tar c. gzip d. archive
3.
The archive can be compressed using ------
, ------, ----------- compression
a.
gzip
b.
bzip2
c.
xz
d. ALL
4. To
use the tar command , one of what following actions can be required:
a. c
(create an archive)
b. t
( list the contents of an archive)
c. x
(extract an archive)
d. Any one of
them
5. Commonly
used options are with tar –
a. c
b. t c. x d. f
e. v
6. An
archive named ‘archive.tar’ is created with the contents of file1, file2, and
file3 in the user's home directory.
a. tar
cf
archive.tar file1
file2 file3
b. tar
xf
archive.tar file1
file2 file3
c. tar cf ~/archive.tar file1
file2 file3
d. tar
vf
archive.tar file1
file2 file3
e. tar
cf
/archive.tar file1
file2 file3
7. Creating
a new archive of the /etc folder and all of its content requires root
privileges, because only root is a l lowed to read all of the files there. An unprivileged
user could create an archive of the /etc folder, but the archive would omit
files which do not include read permission for the user and it would omit
directories which do not include both read and execute permission for the user.
a. True b.
False
8. List
the content of the archive /root/etc.tar:
a. tar tf
/root/etc.tar
b.
tar cf /root/etc.tar
c.
tar xf /root/etc.tar
d.
tar -tf /root/etc.tar
9.
If a regular user extracts files using tar, that
user owns the extracted files.
a.
True b. False
10.
If files are extracted by root, tar attempts to
preserve the original user and group ownership of the files.
a.
True b.
False
11.
Extract the archive /root/etc.tar to the /root/etcbackup directory
a.
tar -xf
/root/etc.tar
b.
cd /root/etcbackup ; tar
-xf /root/etc.tar
c.
mkdir
/root/etcbackup ; tar -xf
/root/etc.tar
d. mkdir
/root/etcbackup ; cd /root/etcbackup ; tar
-xf /root/etc.tar
12. To
preserve the permissions of an archived file, the ---------- option is to be
used when extracting an archive
a. a
b. p c. d
d. s
13. Extract
the archive /root/etc.tar to the
/root/etcbackup directory while
preserving the permissions of the extracted files:
a. mkdir
/root/etcbackup ; cd /root/etcbackup ; tar
pxf /root/etc.tar
b.
mkdir
/root/etcbackup ; cd /root/etcbackup ; tar
axf /root/etc.tar
c.
mkdir
/root/etcbackup ; cd /root/etcbackup ; tar
sxf /root/etc.tar
d.
mkdir
/root/etcbackup ; cd /root/etcbackup ; tar
dxf /root/etc.tar
14.
To create a compressed tar archive, one of the
following tar options can be specified.
a.
z for gzip compression
b.
j for
bzip2 compression
c.
J for xz
compression
d. Any one of above
15.
Create a
gzip-compressed tar archive /root/etcbackup.tar.gz of the /etc directory
a. tar czf /root/etcbackup.tar.gz /etc
b.
tar cjf /root/etcbackup.tar.gz /etc
c.
tar cJf /root/etcbackup.tar.gz /etc
d.
tar xzf /root/etcbackup.tar.gz /etc
e.
tar xjf /root/etcbackup.tar.gz /etc
f.
tar xJf /root/etcbackup.tar.gz /etc
16.
Create a
bzip2-compressed tar archive /root/etcbackup.tar.gz of the /etc directory
a. tar czf
/root/etcbackup.tar.gz /etc
b. tar cjf /root/etcbackup.tar.gz /etc
c. tar cJf
/root/etcbackup.tar.gz /etc
d. tar xzf
/root/etcbackup.tar.gz /etc
e. tar xjf
/root/etcbackup.tar.gz /etc
f. tar
xJf
/root/etcbackup.tar.gz /etc
17.
Create a
xz-compressed tar archive /root/etcbackup.tar.gz of the /etc directory
a. tar czf
/root/etcbackup.tar.gz /etc
b. tar cjf
/root/etcbackup.tar.gz /etc
c.
tar cJf /root/etcbackup.tar.gz /etc
d. tar xzf
/root/etcbackup.tar.gz /etc
e. tar xjf
/root/etcbackup.tar.gz /etc
f. tar xJf
/root/etcbackup.tar.gz /etc
18.
Extract a
gzip-compressed tar archive /root/etcbackup.tar.gz of the /etc directory into /root/gzip folder
a. tar czf
/root/etcbackup.tar.gz /etc
b. tar cjf
/root/etcbackup.tar.gz /etc
c. tar cJf
/root/etcbackup.tar.gz /etc
d.
mkdir /root/gzip ; cd
/root/gzip ; tar
xzf
/root/etcbackup.tar.gz /etc
e. mkdir /root/gzip ; cd
/root/gzip ; tar
xzf
/root/etcbackup.tar.gz
f. tar xJf
/root/etcbackup.tar.gz /etc
19.
Extract a
bzip2-compressed tar archive /root/etcbackup.tar.gz of the /etc directory into /root/bgzip folder
20.
a. tar czf
/root/etcbackup.tar.gz /etc
b. tar cjf
/root/etcbackup.tar.gz /etc
c. tar cJf
/root/etcbackup.tar.gz /etc
d. mkdir /root/bzip ; cd
/root/bzip ; tar
xzf
/root/etcbackup.tar.gz /etc
e.
mkdir /root/bzip ; cd
/root/bzip ; tar
xjf /root/etcbackup.tar.gz
f. mkdir /root/bzip ;
cd /root/bzip ; tar
xjf
/root/etcbackup.tar.gz /etc
21.
Extract a
xz-compressed tar archive /root/etcbackup.tar.gz of the /etc directory into /root/xzip folder
a. tar czf
/root/etcbackup.tar.gz /etc
b. tar cjf
/root/etcbackup.tar.gz /etc
c. tar cJf
/root/etcbackup.tar.gz /etc
d. mkdir /root/xzip ; cd
/root/xzip ; tar
xJf
/root/etcbackup.tar.gz /etc
e. mkdir /root/xzip ;
cd /root/xzip ; tar
xJf /root/etcbackup.tar.gz
22.
Which the corresponding decompress commands are
wrong?
a.
gunzip
b.
bunzip2
c. bunzip
d.
unxz
e. xzunzip
23. which is used to compress files?
a.
gzip
b.
bzip2
c.
xz
d. All
24. which is used to decompress zip files?
a. gunzip
b. bunzip2
c.
unxz
d. All
25. The
ssh command is usefu l for securely running shell commands on remote systems
a. True b.
False
26. Which
command utilizes the SSH server for
authentication and encrypted data transfer.
a.
ssh b. scp c. cp d. copy
e. rsync
27.
If you want to send a file (/etc/yum.conf) securely
to a remote machine’s(10.1.1.10) mushfiq user’s home directory
a.
scp /etc/yum.conf 10.1.1.10:/home
b. scp /etc/yum.conf 10.1.1.10:/home/mushfiq
c.
scp 10.1.1.10:/home /etc/yum.conf
d.
scp 10.1.1.10:/home/mushfiq /etc/yum.conf
28.
if you want to copy from remote machine’s(10.1.1.10)
/etc/hosts file into your superuser’s home directory.
a.
scp /etc/hosts 10.1.1.10:/etc/hosts
b. scp
10.1.1.10:/etc/hosts /root
c.
scp 10.1.1.10:/etc/hosts /etc/hosts
d.
scp /root 10.1.1.10:/etc/hosts
29.
If you want to copy whole etc directory(include all
files and folders) of remote machine(10.1.1.10) into your superuser’ Desktop.
a.
scp 10.1.1.10:/etc /root/Desktop
b. scp -r 10.1.1.10:/etc /root/Desktop
c.
scp -R 10.1.1.10:/etc /root/Desktop
d.
scp /root/Desktop 10.1.1.10:/etc
e.
scp -r /root/Desktop
10.1.1.10:/etc
f.
scp -R /root/Desktop 10.1.1.10:/etc
30.
If an interactive tool is preferred when
uploading or downloading files to a SSH server, the ------- command can be used
a.
ftp b. sftp c. get d.
put
31.
To establish the sftp session with remote host(10.1.1.10)
a. sftp 10.1.1.10
b.
sftp
-s 10.1.1.10
c.
ftp
10.1.1.10
32. there
are the ------- & -------- commands for uploading and downloading files
a. get
& put
b. put &
take
c. upload & get
d. put
& get
33. the
/var/log directory gets a synchronized copy in the /tmp folder. The log
directory with its content is created in the /tmp directory.
a.
rsync -av
/var/log /tmp
b. rsync
-av /tmp /var/log
c. rsync
-v /var/log /tmp
d. rsync -av /var/log/ /tmp
34. the
remote folder /var/log on serverX can be synchronized to the local directory /tmp
a. rsync
-av serverX:/var/log /tmp
b. rsync -a serverX:/var/log /tmp
c. rsync -av
/tmp serverX:/var/log
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