問題一覧
1
What are the differences between a private web browser window and a regular web browser window? (Choose three.)
Private web browser windows do not store cookies persistently., Private web browser windows do not keep records in the browser history., Private web browser windows do not send regular stored cookies.
2
Which command displays file names only and no additional information?
ls -a
3
Which of the following is a protocol used for automatic ip adress configuration
dhcp
4
A directory contains the following three files: texts 1. txt texts 2. txt texts 3. csv Which command copies the two files ending in . txt to the / tmp/ directory?
cp * txt / tmp/
5
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., •Solid state disks provide faster access to stored data than hard disks.
6
What parameter of ls prints a recursive listing of a directory's content? (Specify ONLY the option name without any values or parameters.)
-R
7
Which of the following commands shows the absolute path to the current working directory?
pwd
8
Which of the following are typical services offered by public cloud providers? Select three
Platform as a Service(PaaS), Infrastructure as a Service(laaS), Software as a Service (SaaS)
9
What information can be displayed by top?
Running processes, ordered by CPU or RAM consumption.
10
Which of the following commands finds all lines in the file operating-systems.txt which contain the term linux, regardless of the case?
grep -i linux operating-systems.txt
11
What information is stored in /etc/passwd? (Choose three.)
the numirical user id, the username, the user/s deafault shell
12
Which of the following commands sets the variable UsERNAMe to the value bob?
USERNAME=bob
13
Which of the following directories contains information, documentation and example configuration files for installed software packages?
/usr/ share/doc/
14
Which of the following commands adds the directory /new/dir/ to the PATH environment variable?
export PATH=/new/dir: $PATH
15
What command displays manual pages? (Specify ONLY the command without any path or parameters.)
man
16
What is defined by a Free Software license?
Conditions for modifying and distributing the licensed software.
17
Which of the following Linux Distributions is derived from Red Hat Enterprise Linux?
centOS
18
What is tru about the owner of a file
Each file is owned by exactly one user and one group.
19
The ownership of the file doku. odt should be changed. The new owner is named tux. Which command accomplishes this change?
chown tux doku.odt
20
Which of the following values could be a process ID on Linux?
21398
21
Which permissions are set on a regular file once the permissions have been modified with the command chmod 654 File. txt?
-rw-r-xr--
22
Which files are the source of the information in the following output? (Choose two.) uid-1000 (bob) gid=1000 (bob) groups=1000 (bob), 10 (wheel), 150 (wireshark), 989 (docker), 1001 (libvirt)
/etc/passwd, /etc/group
23
What can be found in the / proc/ directory?
One directory per running process
24
What happens to a file residing outside the home directory when the file owner's account is deleted? (Choose two.)
The UID of the former owner is shown when listing the file's details., Ownership and permissions of the file remain unchanged
25
A user is currently in the directory /home/user/Downloads/ and runs the command
/home/user/Documents/
26
Whats linux distribution
A bundling of the Linux kernel, system utilities and other software.
27
Most commands on Linux can display information on their usage. How can this information typically be displayed?
By running the command with the option -h or --help.
28
Which of the following types of bus can connect hard disk drives with the motherboard?Which of the following types of bus can connect hard disk drives with the motherboard?
The SATA bus
29
Which of the following tar options handle compression? (Choose two.)
-z, -j
30
Which of the following statements is true about Free Software?
It may be modified by anyone using it.
31
What is the purpose of the PATH environment variable?
It allows the execution of commands without the need to know the location of the executable.
32
Which command adds the new user tux and creates the user's home directory with default configuration files?
useradd -m tux
33
aaaaa
34
Which command copies the contents of the directory / etc/, including all sub-directories, to / root/?
cp -r /etc/* /root
35
Which of the following commands can be used to resolve a DNS name to an IP address?
host
36
What is true about the dmesg command?What is true about the dmesg command?
It displays the content of the Linux kernel's ring buffer., It might not display older information because it was overwritten by newer information
37
Which of the following devices represents a hard disk partition?
/ dev/sda2
38
Where is the operating system of a Raspberry Pi stored?
On a removable SD card which is put into the Raspberry Pi-
39
Which of the following commands sorts the output of the command export-logs?
export-logs l sort
40
Which of the following permissions are set on the / tmp/ directory?
rwxrwxrwt
41
What is true about the su command?
It runs a shell or command as another user.
42
Image
./test.sh, bash test.sh
43
Which of the following directories must be mounted with read and write access if it resides on its own dedicated file system?
/var
44
What is true about links in a Linux file system?
A symbolic link can point to a file on another file system.
45
Which package tool is used in rad hat based linux systems
rpm
46
Which of the following examples shows the general structure of a for loop in a shell script?
for file in *. txt do echo $i done
47
Which of the following statements are true regarding a typical shell script? (Choose two.)
It is compiled into a binary file compatible with the current machine architecture., It has the executable permission bit set.
48
What is the uid of the root user
0
49
Which of the following commands creates an archive file work. tar from the contents of the directory -/work/?
tar -cf work. tar -/work/
50
When typing a long command line at the shell, what single character can be used to split a command across multiple lines?
\
51
What is the preferred source for the installation of new applications in a Linux based operating system?
The distribution's package repository
52
Which statements about the directory / etc/skel are correct? (Choose two.)
The files from the directory are copied to the home directory of a new user when the account is created, The directory contains a default set of configuration files used by the useradd command
53
Img
a.txt b.txt
54
Why are web browser cookies considered dangerous?
Cookies support identification and tracking of users.
55
What keyword is used in a shell script to begin a loop? (Specify one keyword only, without any additional information.)
for
56
Which operator in a regular expression matches the preceding character either zero or one time?
?
57
Which of the following commands creates the ZIP archive poems. zip containing all files in the current directory whose names end in . txt?
zip poems. zip * txt
58
What is the return value of a shell script after successful execution?
0
59
Which can exit the command less
q
60
Which of the following commands will search for the file too. txt under the directory /home?
find /home -name foo. txt
61
Reverse DNS assigns hostnames to IP addresses. How is the name of the IP address 198.51.100.165 stored on a DNS server?
B. In the PIR record for 165. 100. 51.198.in-addr.arpa.
62
Which of the following tasks can the command passwd accomplish? (Choose two.)
Change a user's password., Lock a user account.
63
Running the command rm Downloads leads to the following error: rm: cannot remove 'Downloads!': Is a directory Which of the following commands can be used instead to remove Downloads, assuming Downloads is empty? (Choose two.)
rm -r Downloads, rmdir DOWNLOADS
64
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?
CentOS
65
Which of the following statements regarding Linux hardware drivers is correct?
Drivers are either compiled into the Linux kernel or are loaded as kernel modules.
66
How is a new Linux computing instance provisioned in an laaS cloud?
The cloud hosting organization provides a set of pre-prepared images of popular Linux distributions.
67
Which of the following characters in a shell prompt indicates the shell is running with root privileges?
#
68
What is true about a recursive directory listing?
It includes the content of sub-directories.
69
Which of the following outputs could stem from the command last?
root tty2 Wed May 17 21:11 - 21:11 (00:00)
70
Which of the following commands are used to get information on the proper use of Is? (Choose two.)
man ls, info ls
71
Img
The execute bit should be set in the file's permissions
72
Which of the following commands extracts the contents of the compressed archive filel. tar.gz?
tar -xzf file1. tar.gz
73
Which of the following commands output the content of the file Texts 2. txt? (Choose two.)
cat Texts\ 2. txt, cat 'Texts 2. txt'
74
Which program is a graphical editor for vector graphics
inkscape
75
A new server needs to be installed to host services for a period of several years. Throughout this time, the server should receive important security updates from its Linux distribution. Which of the following Linux distributions meet these requirements? (Choose two.)
Red Hat Enterprise Linux, Ubuntu Linux LTS
76
Which one of the following statements concerning Linux passwords is true?
Passwords are only stored in hashed form.
77
Which of the following dns record types hold an ip addres choose two
AAAA, A
78
Which of the following commands puts the lines of the file data. csv into alphabetical order?
sort data.csv
79
Which of the following programs are web servers? (Choose two.)
Apache HTTPD, NGINX