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Free Linux+ XK0-005 Official Cert Guide PDF Download
CompTIA XK0-005 exam is an excellent way for IT professionals to validate their Linux system administration skills and earn a globally recognized certification. With the increasing demand for Linux system administrators in the industry, the CompTIA Linux+ certification can open up new opportunities for career growth and advancement.
NEW QUESTION # 121
A Linux administrator is scheduling a system job that runs a script to check available disk space every hour. The Linux administrator does not want users to be able to start the job. Given the following:
The Linux administrator attempts to start the timer service but receives the following error message:
Which of the following is MOST likely the reason the timer will not start?
- A. The checkdiskspace.timer should be started using the sudo command.
- B. The checkdiskspace.timer should be configured to allow manual starts.
- C. The checkdiskspace.timer unit should be enabled via systemct1.
- D. The timers.target should be reloaded to get the new configuration.
Answer: B
Explanation:
The most likely reason the timer will not start is that the checkdiskspace.timer should be configured to allow manual starts. By default, systemd timers do not allow manual activation via systemct1 start, unless they have RefuseManualStart=no in their [Unit] section. This option prevents users from accidentally starting timers that are meant to be controlled by other mechanisms, such as calendar events or dependencies. To enable manual starts for checkdiskspace.timer, the administrator should add RefuseManualStart=no to its [Unit] section and reload systemd.
The other options are not correct reasons for the timer not starting. The checkdiskspace.timer unit does not need to be enabled via systemct1 enable, because enabling a timer only makes it start automatically at boot time or after a system reload, but does not affect manual activation. The timers.target does not need to be reloaded to get the new configuration, because reloading a target only affects units that have a dependency on it, but does not affect manual activation. The checkdiskspace.timer does not need to be started using the sudo command, because the administrator is already running systemct1 as root, as indicated by the # prompt. Reference: systemd.timer(5) - Linux manual page; systemct1(1) - Linux manual page
NEW QUESTION # 122
A Linux administrator needs to analyze a failing application that is running inside a container. Which of the following commands allows the Linux administrator to enter the running container and analyze the logs that are stored inside?
- A. podman run -d app /bin/bash
- B. docker exec -d app /bin/bash
- C. docker run -ti app /bin/sh
- D. podman exec -ti app /bin/sh
Answer: D
NEW QUESTION # 123
Users have been unable to reach www.comptia.org from a Linux server. A systems administrator is troubleshooting the issue and does the following:
Based on the information above, which of the following is causing the issue?
- A. The name www.comptia.org does not point to a valid IP address.
- B. The network interface eth0 is disconnected.
- C. The server 192.168.168.53 is unreachable.
- D. No default route is set on the server.
Answer: C
Explanation:
Explanation
The issue is caused by the server 192.168.168.53 being unreachable. This server is the DNS server configured in the /etc/resolv.conf file, which is used to resolve domain names to IP addresses. The ping command shows that the server cannot be reached, and the nslookup command shows that the name www.comptia.org cannot be resolved using this server. The other options are incorrect because:
The name www.comptia.org does point to a valid IP address, as shown by the nslookup command using another DNS server (8.8.8.8).
The default route is set on the server, as shown by the ip route command, which shows a default gateway of 192.168.168.1.
The network interface eth0 is connected, as shown by the ip link command, which shows a state of UP for eth0. References: CompTIA Linux+ Study Guide, Fourth Edition, page 457-458, 461-462.
NEW QUESTION # 124
The applications team is reporting issues when trying to access the web service hosted in a Linux system. The Linux systems administrator is reviewing the following outputs:
Output 1:
* httpd.service = The Apache HTTPD Server
Loaded: loaded (/usr/lib/systemd/system/httpd.service; disabled; vendor preset: disabled) Active: inactive (dead) Docs: man:httpd(8) man:apachectl(8) Output 2:
16:51:16 up 28 min, 1 user, load average: 0.00, 0.00, 0.07
Which of the following statements best describe the root cause? (Select two).
- A. The httpd service did not start during the last server reboot.
- B. The httpd service is not enabled to auto start at boot time.
- C. The httpd service runs without problems.
- D. The httpd service was manually stopped.
- E. The httpd service is enabled to auto start at boot time, but it failed to start.
- F. The httpd service is currently started.
Answer: B,D
Explanation:
Explanation
The httpd.service is the Apache HTTPD Server, which is a web service that runs on Linux systems. The output
1 shows that the httpd.service is inactive (dead), which means that it is not running. The output 1 also shows that the httpd.service is disabled, which means that it is not enabled to auto start at boot time. Therefore, the statements C and D best describe the root cause of the issue. The statements A, B, E, and F are incorrect because they do not match the output 1. References: [How to Manage Systemd Services on a Linux System]
NEW QUESTION # 125
Some servers in an organization have been compromised. Users are unable to access to the organization's web page and other services. While reviewing the system log, a systems administrator notices messages from the kernel regarding firewall rules:
Which of the following commands will remediate and help resolve the issue?
- A.
- B.
- C.
- D.
Answer: C
Explanation:
Explanation
The command iptables -F will remediate and help resolve the issue. The issue is caused by the firewall rules that block the access to the organization's web page and other services. The output of dmesg | grep firewall shows that the kernel has dropped packets from the source IP address 192.168.1.100 to the destination port 80, which is the default port for HTTP. The command iptables -F will flush all the firewall rules and allow the traffic to pass through. This command will resolve the issue and restore the access to the web page and other services. The other options are incorrect because they either do not affect the firewall rules (ip route flush or ip addr flush) or do not exist (iptables -R). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 18: Securing Linux Systems, page 543.
NEW QUESTION # 126
A systems administrator is troubleshooting connectivity issues and trying to find out why a Linux server is not able to reach other servers on the same subnet it is connected to. When listing link parameters, the following is presented:
Based on the output above, which of following is the MOST probable cause of the issue?
- A. The network interface cable is not connected to a switch.
- B. The network interface eth0 is using an old kernel module.
- C. The address ac:00:11:22:33:cd is not a valid Ethernet address.
- D. The Ethernet broadcast address should be ac:00:11:22:33:ff instead.
Answer: A
Explanation:
Explanation
The most probable cause of the connectivity issue is that the network interface cable is not connected to a switch. This can be inferred from the output of the ip link list dev eth0 command, which shows that the network interface eth0 has the NO-CARRIER flag set. This flag indicates that there is no physical link detected on the interface, meaning that the cable is either unplugged or faulty. The other options are not valid causes of the issue. The address ac:00:11:22:33:cd is a valid Ethernet address, as it follows the format of six hexadecimal octets separated by colons. The Ethernet broadcast address should be ff:ff:ff:ff:ff:ff, which is the default value for all interfaces. The network interface eth0 is not using an old kernel module, as it shows the UP flag, which indicates that the interface is enabled and ready to transmit data. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 14: Managing Networking
NEW QUESTION # 127
A systems administrator is tasked with changing the default shell of a system account in order to disable iterative logins. Which of the following is the best option for the administrator to use as the new shell?
- A. /sbin/nologin
- B. /bin/bash
- C. /sbin/ setenforce
- D. /bin/ sh
Answer: A
Explanation:
Explanation
The /sbin/nologin shell is a special shell that prevents the user from logging into an interactive session. It is commonly used for system accounts that are not meant to be accessed by users, such as daemon or service accounts. When a user tries to log in with this shell, they will see a message like "This account is currently not available" and the login will fail.
References:
The /sbin/nologin shell is listed as one of the valid shells in the /etc/shells file1.
The CompTIA Linux+ Certification Exam Objectives mention that the candidate should be able to
"configure and manage system accounts and groups, including password aging and restricted shells" as part of the Hardware and System Configuration domain2.
The usermod command can be used to change the user's login shell with the -s or --shell option3. For example, to change the shell of a user named daemon to /sbin/nologin, the command would be: sudo usermod -s /sbin/nologin daemon
NEW QUESTION # 128
In order to copy data from another VLAN, a systems administrator wants to temporarily assign IP address 10.0.6 5/24 to the newly added network interface enp1s0f1. Which of the following commands should the administrator run to achieve the goal?
- A. nmcli conn add lpv4.address-10.0.6.5/24 ifname enpls0f1
- B. ip addr add 10.0.6.5/24 dev enpls0f1
- C. echo "IPV4_ADDRESS=10.0.6.5/24" > /etc/sysconfig/network-scripts/ifcfg-enplsOfl
- D. ifconfig 10.0.6.5/24 enpsIs0f1
Answer: B
NEW QUESTION # 129
A Linux systems administrator receives a notification that one of the server's filesystems is full. Which of the following commands would help the administrator to identify this filesystem?
- A. fdisk
- B. du -ah
- C. df -h
- D. lsblk
Answer: C
NEW QUESTION # 130
Users are experiencing high latency when accessing a web application served by a Linux machine. A systems administrator checks the network interface counters and sees the following:
Which of the following is the most probable cause of the observed latency?
- A. No IP address is assigned to the interface.
- B. A connection problem exists on the network interface.
- C. The network interface is disconnected.
- D. The gateway is unreachable.
Answer: B
Explanation:
The high number of errors and dropped packets in the output of the network interface counters indicate a connection problem on the network interface.
Reference:
CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 10: Managing Networking, Section: Troubleshooting Network Issues, Page 359.
Linux+ (Plus) Certification, Exam Objectives: 4.3 Given a scenario, troubleshoot and resolve basic network configuration and connectivity issues.
NEW QUESTION # 131
An application developer received a file with the following content:
##This is a sample Image ##
FROM ubuntu:18.04
MAINTAINER [email protected]
COPY . /app
RUN make /app
CMD python /app/app.py
RUN apt-get update
RUN apt-get install -y nginx
CMD ["echo","Image created"]
The developer must use this information to create a test bed environment and identify the image (myimage) as the first version for testing a new application before moving it to production. Which of the following commands will accomplish this task?
- A. docker build -t myimage: .
- B. docker build -t myimage:1.0 .
- C. docker build -t myimage-1.0 .
- D. docker build -i myimage:1.0 .
Answer: B
Explanation:
The docker build command is used to build an image from a Dockerfile and a context1. The Dockerfile is a text file that contains the instructions for creating the image, and the context is a set of files that can be used in the image creation process1. The file that the developer received is an example of a Dockerfile.
The -t option is used to specify a name and an optional tag for the image1. The name and tag are separated by a colon (:), and the tag is usually used to indicate the version of the image2. For example, -t myimage:1.0 means that the image will be named myimage and tagged as 1.0.
The last argument of the docker build command is the path to the context, which can be a local directory or a URL1. The dot (.) means that the current working directory is the context2. Therefore, docker build -t myimage:1.0 . means that the image will be built from the Dockerfile and the files in the current working directory, and it will be named myimage and tagged as 1.0.
NEW QUESTION # 132
A Linux administrator needs to resolve a service that has failed to start. The administrator runs the following command:
The following output is returned
Which of the following is MOST likely the issue?
- A. The service startupfile should not be owned by the root group.
- B. The service does not have permissions to read write the startupfile.
- C. The service startupfile size cannot be 81k.
- D. The service startupfile cannot be owned by root.
Answer: B
Explanation:
Explanation
The most likely issue is that the service does not have permissions to read or write the startupfile. The output of systemct1 status startup.service shows that the service has failed to start and the error message is
"Permission denied". The output of ls -l /etc/startupfile shows that the file has the permissions -rw-r--r--, which means that only the owner (root) can read and write the file, while the group (root) and others can only read the file. The service may not run as root and may need write access to the file. The administrator should change the permissions of the file by using the chmod command and grant write access to the group or others, or change the owner or group of the file by using the chown command and assign it to the user or group that runs the service. The other options are incorrect because they are not supported by the outputs. The file size, owner, and group are not the causes of the issue. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 11: Managing Files and Directories, pages 345-346.
NEW QUESTION # 133
A systems administrator receives reports that several virtual machines in a host are responding slower than expected. Upon further investigation, the administrator obtains the following output from one of the affected systems:
Which of the following best explains the reported issue?
- A. The virtual machine has enough CPU cycles, leading to the system use percentage being higher than expected.
- B. The physical host has enough CPU cores, leading to users running more processes to compensate for the slower response times.
- C. The physical host is running out of CPU resources, leading to insufficient CPU time being allocated to virtual machines.
- D. The virtual machine is running out of CPU resources, leading to users experiencing longer response times.
Answer: D
Explanation:
Explanation
Based on the output from one of the affected systems, the best explanation for the reported issue is that the virtual machine is running out of CPU resources, leading to users experiencing longer response times (D). The output shows that the system use percentage is very high (57.85%), indicating that the virtual machine is using most of its CPU cycles for system processes. This leaves little CPU time for user processes, which results in slower performance. The other explanations are not supported by the output or are contradictory. References:
[CompTIA Linux+ Study Guide], Chapter 8: Optimizing Linux Performance, Section: Monitoring CPU Usage
[How to Interpret CPU Usage Statistics]
NEW QUESTION # 134
A systems administrator is encountering performance issues. The administrator runs 3 commands with the following output
The Linux server has the following system properties
CPU: 4 vCPU
Memory: 50GB
Which of the following accurately describes this situation?
- A. The system has been running for over a year and requires a reboot.
- B. The system requires more memory
- C. Too many users are currently logged in to the system
- D. The system is under CPU pressure and will require additional vCPUs
Answer: D
Explanation:
Explanation
Based on the output of the image sent by the user, the system is under CPU pressure and will require additional vCPUs. The output shows that there are four processes running upload.sh scripts that are consuming a high percentage of CPU time (99.7%, 99.6%, 99.5%, and 99.4%). The output also shows that the system has only 4 vCPUs, which means that each process is using almost one entire vCPU. This indicates that the system is struggling to handle the CPU load and may experience performance issues or slowdowns. Adding more vCPUs to the system would help to alleviate the CPU pressure and improve the system performance. The system has not been running for over a year, as the uptime command shows that it has been up for only 1 day,
2 hours, and 13 minutes. The number of users logged in to the system is not relevant to the performance issue, as they are not consuming significant CPU resources. The system does not require more memory, as the free command shows that it has plenty of available memory (49 GB total, 48 GB free). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 15: Managing Memory and Process Execution, pages
468-469.
NEW QUESTION # 135
A systems administrator is receiving tickets from users who cannot reach the application app that should be listening on port 9443/tcp on a Linux server.
To troubleshoot the issue, the systems administrator runs netstat and receives the following output:
Based on the information above, which of the following is causing the issue?
- A. The application is listening on the loopback interface.
- B. The application is listening on port 1234.
- C. The application is not running.
- D. The IP address 0.0.0.0 is not valid.
Answer: A
Explanation:
Explanation
The server is in a "Listen" state on port 9943 using its loopback address. The "1234" is a process-id The cause of the issue is that the application is listening on the loopback interface. The loopback interface is a virtual network interface that is used for internal communication within the system. The loopback interface has the IP address 127.0.0.1, which is also known as localhost. The netstat output shows that the application is listening on port 9443 using the IP address 127.0.0.1. This means that the application can only accept connections from the same system, not from other systems on the network. This can prevent the users from reaching the application and cause the issue. The administrator should configure the application to listen on the IP address 0.0.0.0, which means all available interfaces, or on the specific IP address of the system that is reachable from the network. This will allow the application to accept connections from other systems and resolve the issue. The cause of the issue is that the application is listening on the loopback interface. This is the correct answer to the question. The other options are incorrect because they are not supported by the outputs.
The IP address 0.0.0.0 is valid and means all interfaces, the application is not listening on port 1234, and the application is running as shown by the process ID 1234. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 12: Managing Network Connections, page 383.
NEW QUESTION # 136
A systems administrator is investigating why one of the servers has stopped connecting to the internet.
Which of the following is causing the issue?
- A. Wired connection 1 is offline.
- B. The search entry in the /etc/resolv.conf file is incorrect.
- C. No default route is defined.
- D. The DNS address has been commented out in the configuration file.
Answer: C
Explanation:
Explanation
The issue is caused by the lack of a default route defined in the /etc/sysconfig/network-scripts/ifcfg-enp0s3 file. A default route is a special route that specifies where to send packets that do not match any other routes in the routing table. Without a default route, the server will not be able to communicate with hosts outside its local network. The default route is usually configured with the GATEWAY option in the network interface configuration file. For example, to set the default gateway to 192.168.1.1, the file should contain:
GATEWAY=192.168.1.1
The other options are not causing the issue. The DNS address is not commented out in the configuration file, it is specified with the DNS1 option. The search entry in the /etc/resolv.conf file is correct, it specifies the domain name to append to unqualified hostnames. Wired connection 1 is online, as indicated by the ONBOOT=yes option and the output of ip link show enp0s3 command. References: Configuring IP Networking with nmcli; Configuring IP Networking with ifcfg Files
NEW QUESTION # 137
Some servers in an organization have been compromised. Users are unable to access to the organization's web page and other services. While reviewing the system log, a systems administrator notices messages from the kernel regarding firewall rules:
Which of the following commands will remediate and help resolve the issue?
- A.
- B.
- C.
- D.
Answer: B
Explanation:
Explanation
The command iptables -F will remediate and help resolve the issue. The issue is caused by the firewall rules that block the access to the organization's web page and other services. The output of dmesg | grep firewall shows that the kernel has dropped packets from the source IP address 192.168.1.100 to the destination port 80, which is the default port for HTTP. The command iptables -F will flush all the firewall rules and allow the traffic to pass through. This command will resolve the issue and restore the access to the web page and other services. The other options are incorrect because they either do not affect the firewall rules (ip route flush or ip addr flush) or do not exist (iptables -R). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 18: Securing Linux Systems, page 543.
NEW QUESTION # 138
An administrator needs to increase the system priority of a process with PID 2274. Which of the following commands should the administrator use to accomplish this task?
- A. nice -15 2274
- B. echo "-15" > /proc/PID/2274/priority
- C. renice -n -15 2274
- D. ps -ef I grep 2274
Answer: C
Explanation:
Explanation
The renice command is used to change the priority of a running process by specifying its PID and the new nice value. The -n flag indicates the amount of change in the nice value, which can be positive or negative. A lower nice value means a higher priority, so -15 will increase the priority of the process with PID 2274. The administrator needs to have root privileges to do this.
References:
The renice command is listed as one of the commands to manipulate process priority in the web search result 1.
The renice command is also explained with examples in the web search result 2.
The CompTIA Linux+ Certification Exam Objectives mention that the candidate should be able to
"manage process execution priorities" as part of the System Operation and Maintenance domain1.
NEW QUESTION # 139
Joe, a user, is unable to log in to the Linux system. Given the following output:
Which of the following commands would resolve the issue?
- A. passwd -u joe
- B. usermod -s /bin/bash joe
- C. chage -E 90 joe
- D. pam_tally2 -u joe -r
Answer: D
Explanation:
The command pam_tally2 -u joe -r will resolve the issue of Joe being unable to log in to the Linux system. The pam_tally2 command is a tool for managing the login counter for the PAM (Pluggable Authentication Modules) system. PAM is a framework for managing authentication and authorization on Linux systems. PAM allows the administrator to define the rules and policies for accessing various system resources and services, such as login, sudo, ssh, or cron. PAM also supports different types of authentication methods, such as passwords, tokens, biometrics, or smart cards. PAM can be used to implement login restrictions, such as limiting the number of failed login attempts, locking the account after a certain number of failures, or enforcing a minimum or maximum time between login attempts. The pam_tally2 command can display, reset, or unlock the login counter for the users or hosts. The -u joe option specifies the user name that the command should apply to. The -r option resets the login counter for the user. The command pam_tally2 -u joe -r will reset the login counter for Joe, which will unlock his account and allow him to log in to the Linux system. This will resolve the issue of Joe being unable to log in to the Linux system. This is the correct command to use to resolve the issue. The other options are incorrect because they either do not unlock the account (usermod -s /bin/bash joe or passwd -u joe) or do not affect the login counter (chage -E 90 joe). Reference: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 17: Implementing Basic Security, page 517.
NEW QUESTION # 140
An administrator deployed a Linux server that is running a web application on port 6379/tcp.
SELinux is in enforcing mode based on organization policies.
The port is open on the firewall.
Users who are trying to connect to a local instance of the web application receive Error 13, Permission denied.
The administrator ran some commands that resulted in the following output:
Which of the following commands should be used to resolve the issue?
- A. semanage port -a -t http_port_t -p tcp 6379
- B. semanage port -a http_port_t -p top 6379
- C. semanage port -d -t http_port_t -p tcp 6379
- D. semanage port -l -t http_port_tcp 6379
Answer: A
Explanation:
The command semanage port -a -t http_port_t -p tcp 6379 adds a new port definition to the SELinux policy and assigns the type http_port_t to the port 6379/tcp. This allows the web application to run on this port and accept connections from users. This is the correct way to resolve the issue. The other options are incorrect because they either delete a port definition (-d), use the wrong protocol (top instead of tcp), or list the existing port definitions (-l). Reference: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 18: Securing Linux Systems, page 535.
NEW QUESTION # 141
A Linux administrator created the directory /project/access2all. By creating this directory, the administrator is trying to avoid the deletion or modification of files from non-owners. Which of the following will accomplish this goal?
- A. chmod ugo+rwx /project/access2all
- B. chmod 2770 /project/access2all
- C. chmod +rws /project/access2all
- D. chmod +t /project/access2all
Answer: D
Explanation:
The command that will accomplish the goal of avoiding the deletion or modification of files from non-owners is chmod +t /project/access2all. This command will set the sticky bit on the directory /project/access2all, which is a special permission that restricts file deletion or renaming to only the file owner, directory owner, or root user. This way, even if multiple users have write permission to the directory, they cannot delete or modify each other's files.
The other options are not correct commands for accomplishing the goal. The chmod +rws /project/access2all command will set both the SUID and SGID bits on the directory, which are special permissions that allow a program or a directory to run or be accessed with the permissions of its owner or group, respectively. However, this does not prevent file deletion or modification from non-owners. The chmod 2770 /project/access2all command will set only the SGID bit on the directory, which means that any new files or subdirectories created in it will inherit its group ownership. However, this does not prevent file deletion or modification from non-owners. The chmod ugo+rwx /project/access2all command will grant read, write, and execute permissions to all users (user, group, and others) on the directory, which means that anyone can delete or modify any file in it. Reference: chmod(1) - Linux manual page; How to Use SUID, SGID, and Sticky Bits on Linux
NEW QUESTION # 142
A Linux administrator needs to remove software from the server. Which of the following RPM options should be used?
- A. rpm -q
- B. rm -d
- C. rpm -s
- D. rpm -e
Answer: D
Explanation:
Explanation
The RPM option -e should be used to remove software from the server. The rpm command is a tool for managing software packages on RPM-based Linux distributions. The -e option stands for erase and removes the specified package from the system. This is the correct option to use to accomplish the task. The other options are incorrect because they either do not exist (-s or -d) or do not remove software (-q stands for query and displays information about the package). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 16: Managing Software, page 489.
NEW QUESTION # 143
A systems administrator is encountering performance issues. The administrator runs 3 commands with the following output
The Linux server has the following system properties
CPU: 4 vCPU
Memory: 50GB
Which of the following accurately describes this situation?
- A. The system has been running for over a year and requires a reboot.
- B. The system requires more memory
- C. The system is under CPU pressure and will require additional vCPUs
- D. Too many users are currently logged in to the system
Answer: A
NEW QUESTION # 144
Several users reported that they were unable to write data to the /oracle1 directory. The following output has been provided:
Which of the following commands should the administrator use to diagnose the issue?
- A. df -i /oracle1
- B. du -sh /oracle1
- C. fdisk -1 /dev/sdb1
- D. lsblk /dev/sdb1
Answer: A
Explanation:
Explanation
The administrator should use the command df -i /oracle1 to diagnose the issue of users being unable to write data to the /oracle1 directory. This command will show the inode usage of the /oracle1 filesystem, which indicates how many files and directories can be created on it. If the inode usage is 100%, it means that no more files or directories can be added, even if there is still free space on the disk. The administrator can then delete some unnecessary files or directories, or increase the inode limit of the filesystem, to resolve the issue.
The other options are not correct commands for diagnosing this issue. The fdisk -l /dev/sdb1 command will show the partition table of /dev/sdb1, which is not relevant to the inode usage. The lsblk /dev/sdb1 command will show information about /dev/sdb1 as a block device, such as its size, mount point, and type, but not its inode usage. The du -sh /oracle1 command will show the disk usage of /oracle1 in human-readable format, but not its inode usage. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 7:
Managing Disk Storage; How to Check Inode Usage in Linux - Fedingo
NEW QUESTION # 145
......
CompTIA XK0-005 Official Cert Guide PDF: https://actualanswers.testsdumps.com/XK0-005_real-exam-dumps.html
