010-160 Online Training Archives

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1. What are the differences between hard disk drives and solid state disks? (Choose two.)

Hard disks have a motor and moving parts, solid state disks do not.

Hard disks can fail due to physical damage, while solid state disks cannot fail.

Solid state disks can store many times as much data as hard disk drives.

/dev/sdais a hard disk device while /dev/ssda is a solid state disk.

Solid state disks provide faster access to stored data than hard disks.

2. Reverse DNS assigns hostnames to IP addresses.

How is the name of the IP address 198.51.100.165 stored on a DNS server?

In the A record for 165.100.51.198.ipv4.arpa.

In the PTR record for 165.100.51.198.in-addr.arpa.

In the RNAME record for 198-51-100-165.rev.arpa.

In the ARPA record for 165.100.51.198.rev.

In the REV record for arpa.in-addr.198.51.100.165.

3. Which of the following types of bus can connect hard disk drives with the motherboard?

The RAM bus

The NUMA bus

The CPU bus

The SATA bus

The Auto bus

4. Members of a team already have experience using Red Hat Enterprise Linux. For a small hobby project, the team wants to set up a Linux server without paying for a subscription.

Which of the following Linux distributions allows the team members to apply as much of their Red Hat Enterprise Linux knowledge as possible?

Ubuntu Linux LTS

Raspbian

Debian GNU/Linux

CentOS

openSUSE

5. What information can be displayed by top?

Existing files, ordered by their size.

Running processes, ordered by CPU or RAM consumption.

User accounts, ordered by the number of logins.

User groups, ordered by the number of members.

User accounts, ordered by the number of files.

6. Which of the following commands can be used to resolve a DNS name to an IP address?

dnsname

dns

query

host

iplookup

7. Which of the following outputs comes from the command free?

A)

Option A

Option B

Option C

Option D

Option E

8. What is true about the dmesg command? (Choose two.)

It traces the execution of a command and shows each step the program carries out.

It sends messages to the command lines of all current user sessions.

It displays the content of the Linux kernel’s ring buffer.

It immediately outputs all new messages written to the system journal.

It might not display older information because it was overwritten by newer information.

9. Which of the following outputs could stem from the command last?

1 ls 2 cat text.txt 3 logout

Password for user last changed at Sat Mar 31 16:38:57 EST 2018

Last login: Fri Mar 23 10:56:39 2018 from server.example.com

EXT4-fs (dm-7): mounted filesystem with ordered data mode. Opts: (null)

root tty2 Wed May 17 21:11 - 21:11 (00:00)

10. What is the UID of the user root?

-1

255

65536

Page 2 of 5

11. Which permissions are set on a regular file once the permissions have been modified with the command chmod 654 file.txt?

drw-r-xr-

d―wxr-x-

Cwxr-x--x

Crwxrw---x

-rw-r-xr-

12. What is true about the owner of a file?

Each file is owned by exactly one user and one group.

The owner of a file always has full permissions when accessing the file.

The user owning a file must be a member of the file’s group.

When a user is deleted, all files owned by the user disappear.

The owner of a file cannot be changed once it is assigned to an owner.

13. Which of the following permissions are set on the /tmp/ directory?

rwxrwxrwt

------rwX

rwSrw-rw-

rwxrwS--

r-xr-X--t

14. Which command adds the new user tux and creates the user’s home directory with default configuration files?

defaultuser tux

useradd Cm tux

usercreate tux

useradd Co default tux

passwd Ca tux

15. What information is stored in /etc/passwd? (Choose three.)

The user’s storage space limit

The numerical user ID

The username

The encrypted password

The users default shell

16. Which of the following tar options handle compression? (Choose two.)

-bz

-z

-g

-j

-z2

17. FILL BLANK

What keyword is used in a shell script to begin a loop? (Specify one keyword only, without any additional information.)

18. Which of the following commands creates an archive file work.tar from the contents of the directory ./work/?

tar --new work.tar ./work/

tar Ccf work.tar ./work/

tar Ccreate work.tgz Ccontent ./work/

tar work.tar < ./work/

tar work > work.tar

19. Which of the following keys can be pressed to exit less?

20. The current directory contains the following file:

-rwxr-xr-x 1 root root 859688 Feb 7 08:15 test.sh

Given that the file is a valid shell script, how can this script be executed? (Choose two.)

run test.sh

${test.sh}

cmd ./test.sh

./test.sh

bash test.sh

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21. Which of the following commands sorts the output of the command export-logs?

export-logs < sort

export-logs > sort

export-logs & sort

export-logs | sort

export-logs <> sort

22. A directory contains the following files:

What would be the output of the following shell script?

for file in *.txt

*.txt

a b

c.cav

a.txt

a. txt b. txt

23. Which of the following commands will search for the file foo.txt under the directory /home?

search /home Cfile foo.txt

search /home foo. txt

find /home C file foo.txt

find /home Cname foo.txt

find /home foo.txt

24. The current directory contains the following file:

-rw-r―r― 1 root exec 24551 Apr 2 12:36 test.sh

The file contains a valid shell script, but executing this file using ./test.shleads to this error:

bash: ./test.sh: Permission denied

What should be done in order to successfully execute the script?

The file’s extension should be changed from .sh to .bin.

The execute bit should be set in the file’s permissions.

The user executing the script should be added to the exec group.

The SetUID bit should be set in the file’s permissions

The script should be run using #!./test. shinstead of ./test.sh.

25. What is a Linux distribution?

The Linux file system as seen from the root account after mounting all file systems.

A bundling of the Linux kernel, system utilities and other software.

The set of rules which governs the distribution of Linux kernel source code.

An operating system based on Linux but incompatible to the regular Linux kernel.

A set of changes to Linux which enable Linux to run on another processor architecture.

26. What are the differences between hard disk drives and solid state disks? (Choose two correct answers.)

Hard disks have a motor and moving parts, solid state disks do not.

Hard disks can fail due to physical damage, while solid state disks cannot fail.

Solid state disks can store many times as much data as hard disk drives.

/dev/sda is a hard disk device while /dev/ssda is a solid state disk.

Solid state disks provide faster access to stored data than hard disks.

27. Reverse DNS assigns hostnames to IP addresses.

How is the name of the IP address 198.51.100.165 stored

on a DNS server?

In the A record for 165.100.51.198.ipv4.arp

In the PTR record for 165.100.51.198.in-addr.arp

In the RNAME record for 198-51-100-165.rev.arp

In the ARPA record for 165.100.51.198.rev.

In the REV record for arp

in-addr.198.51.100.165.

28. Which of the following types of bus can connect hard disk drives with the motherboard?

The RAM bus

The NUMA bus

The CPU bus

The SATA bus

The Auto bus

29. Members of a team already have experience using Red Hat Enterprise Linux. For a small hobby project, the team wants to set up a Linux server without paying for a subscription.

Which of the following Linux distributions allows the team members to apply as much of their Red Hat Enterprise Linux knowledge as possible?

Ubuntu Linux LTS

Raspbian

Debian GNU/Linux

CentOS

openSUSE

30. What information can be displayed by top?

Existing files, ordered by their size.

Running processes, ordered by CPU or RAM consumption.

User accounts, ordered by the number of logins.

User groups, ordered by the number of members.

User accounts, ordered by the number of files.

Page 4 of 5

31. Which of the following commands can be used to resolve a DNS name to an IP address?

dnsname

dns

query

host

iplookup

32. Which of the following outputs comes from the command free?

Option A

Option B

Option C

Option D

Option E

33. What is true about the dmesg command? (Choose two correct answers.)

It traces the execution of a command and shows each step the program carries out.

It sends messages to the command lines of all current user sessions.

It displays the content of the Linux kernel’s ring buffer.

It immediately outputs all new messages written to the system journal.

It might not display older information because it was overwritten by newer information.

34. Which of the following outputs could stem from the command last?

1 ls 2 cat text.txt 3 logout

Password for user last changed at Sat Mar 31 16:38:57 EST 2018

Last login: Fri Mar 23 10:56:39 2018 from server.example.com

EXT4-fs (dm-7): mounted filesystem with ordered data mode. Opts: (null)

root tty2 Wed May 17 21:11 - 21:11 (00:00)

35. What is the UID of the user root?

-1

255

65536

36. Which permissions are set on a regular file once the permissions have been modified with the command

chmod 654 file.txt?

drw-r-xr--

d―wxr-x--

Cwxr-x--x

Crwxrw---x

-rw-r-xr--

37. What is true about the owner of a file?

Each file is owned by exactly one user and one group.

The owner of a file always has full permissions when accessing the file.

The user owning a file must be a member of the file’s group.

When a user is deleted, all files owned by the user disappear.

The owner of a file cannot be changed once it is assigned to an owner.

38. Which of the following permissions are set on the /tmp/ directory?

rwxrwxrwt

------rwX

rwSrw-rw-

rwxrwS---

r-xr-X--t

39. Which command adds the new user tux and creates the user’s home directory with default configuration files?

defaultuser tux

useradd Cm tux

usercreate tux

useradd Co default tux

passwd Ca tux

40. What information is stored in /etc/passwd? (Choose three correct answers.)

The user’s storage space limit

The numerical user ID

The username

The encrypted password

The users default shell

Page 5 of 5

41. Which of the following tar options handle compression? (Choose two correct answers.)

-bz

-z

-g

-j

-z2

42. FILL BLANK

What keyword is used in a shell script to begin a loop? (Specify one keyword only, without any additional

information.)

43. Which of the following commands creates an archive file work.tar from the contents of the directory ./

work/?

tar --new work.tar ./work/

tar Ccf work.tar ./work/

tar Ccreate work.tgz Ccontent ./work/

tar work.tar < ./work/

tar work > work.tar

44. Which of the following keys can be pressed to exit less?

45. The current directory contains the following file:

-rwxr-xr-x 1 root root 859688 Feb 7 08:15 test.sh

Given that the file is a valid shell script, how can this script be executed? (Choose two correct answers.)

run test.sh

${test.sh}

cmd ./test.sh

./test.sh

bash test.sh