Question 1

Which of the following commands lists all defines variables and functions within Bash?

Accepted Answer

A)  env 
B)  export 
C)  env -a 
D)  set 
E)  echo $ENV 
A)  env 
B)  export 
C)  env -a 
D)  set 
E)  echo $ENV

Question 2

Which of the following commands preloads and manages existing SSH keys that are used for automatic authentication while logging in to order machines using SSH?

Accepted Answer

A)  sshd 
B)  ssh-keyring 
C)  ssh-keygen 
D)  ssh-pki 
E)  ssh-agent 
A)  sshd 
B)  ssh-keyring 
C)  ssh-keygen 
D)  ssh-pki 
E)  ssh-agent

Question 3

Which of the following protocols is related to the term open relay?

Accepted Answer

A)  SMTP 
B)  POP3 
C)  NTP 
D)  IMAP 
E)  LDAP 
A)  SMTP 
B)  POP3 
C)  NTP 
D)  IMAP 
E)  LDAP

Question 4

Which of the following is a valid IPv6 address?

Accepted Answer

A)  2001:db8:0g21::1 
B)  2001::db8:4581::1 
C)  2001:db8:3241::1 
D)  2001%db8%9990%%1 
E)  2001.db8.819f..1 
A)  2001:db8:0g21::1 
B)  2001::db8:4581::1 
C)  2001:db8:3241::1 
D)  2001%db8%9990%%1 
E)  2001.db8.819f..1

Question 5

On a Linux workstation, the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

Accepted Answer

A)  The local routing information may be corrupted and must be re-validated using a routing protocol. 
B)  One of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-
D)  to wait for a timeout. 
C)  There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default. 
D)  The Linux Kernel Routing Daemon (LKR
D)  is not running and should be started using its init script or systemd unit. 
E)  DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout. DNS resolution may not be working as by default tries to resolve names of routers and destinations and may run into a timeout. 
A)  The local routing information may be corrupted and must be re-validated using a routing protocol. 
B)  One of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-
D)  to wait for a timeout. 
C)  There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default. 
D)  The Linux Kernel Routing Daemon (LKR
D)  is not running and should be started using its init script or systemd unit. 
E)  DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout. DNS resolution may not be working as by default tries to resolve names of routers and destinations and may run into a timeout.

Question 6

After editing the TCP wrapper configuration to grant specific hosts access to a service, when do these changes become effective?

Accepted Answer

A)  The new configuration becomes effective after restarting the respective service. 
B)  The new configuration becomes effective at the next system reboot. 
C)  The new configuration becomes effective when the last established connection to the service is closed. 
D)  The new configuration becomes effective after restarting the tcpd service. The new configuration becomes effective after restarting the tcpd service. 
E)  The new configuration becomes effective immediately for all new connections. 
A)  The new configuration becomes effective after restarting the respective service. 
B)  The new configuration becomes effective at the next system reboot. 
C)  The new configuration becomes effective when the last established connection to the service is closed. 
D)  The new configuration becomes effective after restarting the tcpd service. The new configuration becomes effective after restarting the tcpd service. 
E)  The new configuration becomes effective immediately for all new connections.

Question 7

Which of the following environment variables can be defined in locale.conf ?

Accepted Answer

A)  LC_ALL 
B)  LC_USERNAME 
C)  LC_UTF8 
D)  LC_GEOGRAPHY 
E)  LC_TIME 
A)  LC_ALL 
B)  LC_USERNAME 
C)  LC_UTF8 
D)  LC_GEOGRAPHY 
E)  LC_TIME

Question 8

Which of the following connection types, as seen in nmcli connection show , may exist in NetworkManager?

Accepted Answer

A)  tcp 
B)  ethernet 
C)  wifi 
D)  ipv6 
E)  bridge 
A)  tcp 
B)  ethernet 
C)  wifi 
D)  ipv6 
E)  bridge

Question 9

Which of the following information is stored in /etc/shadow for each user?

Accepted Answer

A)  The timestamp of the user's last login 
B)  The user's private SSH keys 
C)  The hashed password of the user 
D)  The numerical user ID (UI
D)  
E)  The path to the user's home directory 
A)  The timestamp of the user's last login 
B)  The user's private SSH keys 
C)  The hashed password of the user 
D)  The numerical user ID (UI
D)  
E)  The path to the user's home directory

Question 10

Which of the following commands can identify the PID od a process which opened a TCP port?

Accepted Answer

A)  ptrace 
B)  strace 
C)  debug 
D)  lsof 
E)  nessus 
A)  ptrace 
B)  strace 
C)  debug 
D)  lsof 
E)  nessus

Question 11

Which of the following commands lists all queued print jobs?

Accepted Answer

A)  lpd 
B)  lpr 
C)  lp 
D)  lsq 
E)  lpq 
A)  lpd 
B)  lpr 
C)  lp 
D)  lsq 
E)  lpq

Question 12

What is the purpose of a screen reader?

Accepted Answer

A)  It manages virtual keyboards on touch screen displays. 
B)  It reads the parameters of the attached monitors and creates an appropriate X11 configuration. 
C)  It displays lines and markers to help people use speed reading techniques. 
D)  It manages and displays files that contain e-books. 
E)  It reads displayed text to accommodate the needs of blind or visually impaired people. 
A)  It manages virtual keyboards on touch screen displays. 
B)  It reads the parameters of the attached monitors and creates an appropriate X11 configuration. 
C)  It displays lines and markers to help people use speed reading techniques. 
D)  It manages and displays files that contain e-books. 
E)  It reads displayed text to accommodate the needs of blind or visually impaired people.

Question 13

Which of the following changes may occur as a consequence of using the command ip ?

Accepted Answer

A)  Network interfaces may become active or inactive. 
B)  New name servers may be added to the resolver configuration. 
C)  The system's host name may change. 
D)  IP addresses may change. 
E)  The routing table may change. 
A)  Network interfaces may become active or inactive. 
B)  New name servers may be added to the resolver configuration. 
C)  The system's host name may change. 
D)  IP addresses may change. 
E)  The routing table may change.

Question 14

Which mechanism does ssh use to interact with the SSH agent?

Accepted Answer

A)  Connecting to port 2222 which is used by the system-wide SSH agent. 
B)  Using the fixed socket .ssh-agent/ipc. Using the fixed socket .ssh-agent/ipc. 
C)  Creating an alias replacing ssh with calls to ssh-agent . Creating an alias replacing ssh with calls to ssh-agent . 
D)  Starting ssh-agent as a child process for each ssh invocation. Starting as a child process for each ssh invocation. 
E)  Evaluating environment variables such as SSH_AUTH_SOCK . Evaluating environment variables such as SSH_AUTH_SOCK 
A)  Connecting to port 2222 which is used by the system-wide SSH agent. 
B)  Using the fixed socket .ssh-agent/ipc. Using the fixed socket .ssh-agent/ipc. 
C)  Creating an alias replacing ssh with calls to ssh-agent . Creating an alias replacing ssh with calls to ssh-agent . 
D)  Starting ssh-agent as a child process for each ssh invocation. Starting as a child process for each ssh invocation. 
E)  Evaluating environment variables such as SSH_AUTH_SOCK . Evaluating environment variables such as SSH_AUTH_SOCK

Question 15

How does the ping command work by default?

Accepted Answer

A)  Is sends an ICMP Echo Request to a remote host and waits to receive an ICMP Echo Response in return. 
B)  It sends an ARP request to a remote host and waits to receive an ARP response in return. 
C)  It sends a TCP SYN packet to a remote host and waits to receive an TCP ACK response in return. 
D)  Is sends a broadcast packet to all hosts on the net and waits to receive, among others, a response from the target system. 
E)  It sends a UDP packet to port 0 of the remote host and waits to receive a UDP error response in return. 
A)  Is sends an ICMP Echo Request to a remote host and waits to receive an ICMP Echo Response in return. 
B)  It sends an ARP request to a remote host and waits to receive an ARP response in return. 
C)  It sends a TCP SYN packet to a remote host and waits to receive an TCP ACK response in return. 
D)  Is sends a broadcast packet to all hosts on the net and waits to receive, among others, a response from the target system. 
E)  It sends a UDP packet to port 0 of the remote host and waits to receive a UDP error response in return.

Question 16

Which option in the chrony configuration file changes the initial interval of polls to a NTP server in order to speed up the initial synchronization?

Accepted Answer

A)  iburst 
B)  quickstart 
C)  fast 
D)  fsync 
E)  flood 
A)  iburst 
B)  quickstart 
C)  fast 
D)  fsync 
E)  flood

Question 17

Which of the commands below might have produced the following output?

Accepted Answer

A)  dig -t mx www.example.org 
B)  dig www.example.org 
C)  dig -t ns www.example.org 
D)  dig -t a www.example.org dig -t a www.example.org 
E)  dig -t soa www.example.org 
A)  dig -t mx www.example.org 
B)  dig www.example.org 
C)  dig -t ns www.example.org 
D)  dig -t a www.example.org dig -t a www.example.org 
E)  dig -t soa www.example.org

Question 18

Which file contains the data of the last change of a user's password?

Accepted Answer

A)  /etc/gshadow 
B)  /etc/passwd 
C)  /etc/pwdlog 
D)  /var/log/shadow 
E)  /etc/shadow 
A)  /etc/gshadow 
B)  /etc/passwd 
C)  /etc/pwdlog 
D)  /var/log/shadow 
E)  /etc/shadow

Question 19

Which of the following commands will delete the default gateway from the system's IP routing table?

Accepted Answer

A)  ifconfig unset default 
B)  route del default 
C)  ip route del default 
D)  netstat -r default 
E)  sysctl ipv4.default_gw=0 
A)  ifconfig unset default 
B)  route del default 
C)  ip route del default 
D)  netstat -r default 
E)  sysctl ipv4.default_gw=0

Question 20

What information is provided by the echo $$ command?

Accepted Answer

A)  The process ID of the current shell. 
B)  The process ID for the following command. 
C)  The process ID of the last command executed. 
D)  The process ID of the last command which has been placed in the background. 
E)  The process ID of the echo command. The process ID of the echo command. 
A)  The process ID of the current shell. 
B)  The process ID for the following command. 
C)  The process ID of the last command executed. 
D)  The process ID of the last command which has been placed in the background. 
E)  The process ID of the echo command. The process ID of the echo command.

Which of the following commands lists all defines variables and functions within Bash?

Which of the following commands preloads and manages existing SSH keys that are used for automatic authentication while logging in to order machines using SSH?

Which of the following protocols is related to the term open relay?

Which of the following is a valid IPv6 address?

On a Linux workstation, the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

After editing the TCP wrapper configuration to grant specific hosts access to a service, when do these changes become effective?

Which of the following environment variables can be defined in locale.conf ?

Which of the following connection types, as seen in nmcli connection show , may exist in NetworkManager?

Which of the following information is stored in /etc/shadow for each user?

Which of the following commands can identify the PID od a process which opened a TCP port?

Which of the following commands lists all queued print jobs?

What is the purpose of a screen reader?

Which of the following changes may occur as a consequence of using the command ip ?

Which mechanism does ssh use to interact with the SSH agent?

How does the ping command work by default?

Which option in the chrony configuration file changes the initial interval of polls to a NTP server in order to speed up the initial synchronization?

Which of the commands below might have produced the following output?

Which file contains the data of the last change of a user's password?

Which of the following commands will delete the default gateway from the system's IP routing table?

What information is provided by the echo $$ command?

Entry Level Linux Essentials Certificate of Achievement

Linux Essentials Certificate Exam, version 1.6

LPI Level 1 Exam 101, Junior Level Linux Certification, Part 1 of 2

LPIC-1 Exam 101

LPI Level 1 Exam 102, Junior Level Linux Certification, Part 2 of 2

LPIC-2 Exam 201

LPIC-2 Exam 202

LPIC-3 Exam 300: Mixed Environments

Security

LPIC-3 Virtualization & High Availability

LPIC-OT Exam 701: DevOps Tools Engineer

Filters

Exam 6: LPI Level 1

Which of the following commands lists all defines variables and functions within Bash?

Which of the following commands preloads and manages existing SSH keys that are used for automatic authentication while logging in to order machines using SSH?

Which of the following protocols is related to the term open relay?

Which of the following is a valid IPv6 address?

On a Linux workstation, the route command takes a long time before printing out the routing table. Which of the following errors does that indicate?

After editing the TCP wrapper configuration to grant specific hosts access to a service, when do these changes become effective?

Which of the following environment variables can be defined in locale.conf ?

Which of the following connection types, as seen in nmcli connection show , may exist in NetworkManager?

Which of the following information is stored in /etc/shadow for each user?

Which of the following commands can identify the PID od a process which opened a TCP port?

Which of the following commands lists all queued print jobs?

What is the purpose of a screen reader?

Which of the following changes may occur as a consequence of using the command ip ?

Which mechanism does ssh use to interact with the SSH agent?

How does the ping command work by default?

Which option in the chrony configuration file changes the initial interval of polls to a NTP server in order to speed up the initial synchronization?

Which of the commands below might have produced the following output?

Which file contains the data of the last change of a user's password?

Which of the following commands will delete the default gateway from the system's IP routing table?

What information is provided by the echo $$ command?

Entry Level Linux Essentials Certificate of Achievement

Linux Essentials Certificate Exam, version 1.6

LPI Level 1 Exam 101, Junior Level Linux Certification, Part 1 of 2

LPIC-1 Exam 101

LPI Level 1 Exam 102, Junior Level Linux Certification, Part 2 of 2

LPIC-2 Exam 201

LPIC-2 Exam 202

LPIC-3 Exam 300: Mixed Environments

Security

LPIC-3 Virtualization & High Availability

LPIC-OT Exam 701: DevOps Tools Engineer

Filters