CompTIA CompTIA Certifications SK0-005 Questions & Answers

• Question 131:

  A server administrator made a change in a server's BIOS in an attempt to fix an issue with the OS not turning on. However, the change did not successfully correct the issue. Which of the following should the server administrator do NEXT?

  A. Reinstall the server OS in repair mode while maintaining the data.

  B. Flash the BIOS with the most recent version.

  C. Reverse the latest change made to the server and reboot.

  D. Restart the server into safe mode and roll back changes.

  Correct Answer: C

  The best practice for troubleshooting is to follow a logical and systematic process that involves identifying the problem, establishing a theory of probable cause, testing the theory, establishing a plan of action, implementing the solution,

  verifying functionality, and documenting findings. Since the problem occurred after a change in the server's BIOS, the most likely cause is that the change was incompatible or incorrect for the OS. Therefore, the next step should be to reverse

  the latest change made to the server and reboot to see if that fixes the issue.

  References:

  https://www.comptia.org/training/resources/exam-objectives/comptia-server-sk0-005-exam-objectives (Objective 4.3)

• Question 132:

  A security technician generated a public/private key pair on a server. The technician needs to copy the key pair to another server on a different subnet. Which of the following is the MOST secure method to copy the keys?

  A. HTTP

  B. FTP

  C. SCP

  D. USB

  Correct Answer: C

• Question 133:

  A server administrator purchased a single license key to use for all the new servers that will be imaged this year. Which of the following MOST likely refers to the licensing type that will be used?

  A. Per socket

  B. Open-source

  C. Per concurrent user

  D. Volume

  Correct Answer: D

  This is the most likely licensing type that will be used because volume licensing allows a single license key to be used for multiple installations of a software product. Volume licensing is typically used by organizations that need to deploy software to a large number of devices or users.

  References: https://www.microsoft.com/en-us/licensing/licensing-programs/volume-licensing-programs

• Question 134:

  A technician is attempting to log in to a Linux server as root but cannot remember the administrator password. Which of the following is the LEAST destructive method of resetting the administrator password?

  A. Boot using a Linux live CD and mount the hard disk to /mnt. Change to the /mnt/etc directory. Edit the passwd file found in that directory.

  B. Reinstall the OS in overlay mode. Reset the root password from the install GUI screen.

  C. Adjust the GRUB boot parameters to boot into single-user mode. Run passwd from the command prompt.

  D. Boot using a Linux live CD and mount the hard disk to /mnt. SCP the /etc directory from a known accessible server to /mnt/etc.

  Correct Answer: C

  The least destructive method of resetting the administrator password would be option C, adjusting the GRUB boot parameters to boot into single-user mode and running passwd from the command prompt. This method allows the technician to reset the root password without making any changes to the system's configuration files or reinstalling the operating system.

  Option A involves editing the system's passwd file, which could potentially cause issues with user accounts and permissions.

  Option B involves reinstalling the OS, which is a very destructive method and would result in data loss and a complete reset of the system.

  Option D involves copying system configuration files from another server, which could potentially introduce new problems and is not a recommended method for resetting the root password.

• Question 135:

  Which of the following BEST describes overprovisioning in a virtual server environment?

  A. Committing more virtual resources to virtual machines than there are physical resources present

  B. Installing more physical hardware than is necessary to run the virtual environment to allow for future expansion

  C. Allowing a virtual machine to utilize more resources than are allocated to it based on the server load

  D. Ensuring there are enough physical resources to sustain the complete virtual environment in the event of a host failure

  Correct Answer: A

  This is the best definition of overprovisioning in a virtual server environment because it means allocating more CPU, memory, disk, or network resources to the virtual machines than what is actually available on the physical host. This can lead to performance issues and resource contention.

  References: https://www.hpe.com/us/en/insights/articles/10-virtualization-mistakes-everyone-makes-1808.html

• Question 136:

  An administrator is alerted to a hardware failure in a mission-critical server. The alert states that two drives have failed. The administrator notes the drives are in different RAID 1 arrays, and both are hot-swappable. Which of the following steps will be the MOST efficient?

  A. Replace one drive, wait for a rebuild, and replace the next drive.

  B. Shut down the server and replace the drives.

  C. Replace both failed drives at the same time.

  D. Replace all the drives in both degraded arrays.

  Correct Answer: C

  The most efficient step would be to replace both failed drives at the same time. This will allow for the quickest recovery time since both drives have failed and need to be replaced to restore data redundancy.

  Replacing one drive at a time, waiting for a rebuild, and then replacing the next drive will increase the risk of data loss if another drive fails during the rebuild process. Shutting down the server to replace the drives will result in extended downtime. Replacing all the drives in both degraded arrays is not necessary, as only the two failed drives need to be replaced.

• Question 137:

  A systems administrator is trying to determine why users in the human resources department cannot access an application server. The administrator reviews the application logs but does not see any attempts by the users to access the application.

  Which of the following is preventing the users from accessing the application server?

  A. NAT

  B. ICMP

  C. VLAN

  D. NIDS

  Correct Answer: C

  If the application logs do not show any attempts by users to access the application server, it is likely that some network-related issue is preventing users from accessing the server. Out of the options given, the most likely culprit is VLAN (Virtual Local Area Network).

• Question 138:

  An administrator discovers a Bash script file has the following permissions set in octal notation:

  Which of the following is the MOST appropriate command to ensure only the root user can modify and execute the script?

  A. chmod go-rwx

  B. chmod u=rwx

  C. chmod u+wx

  D. chmod g-rwx

  Correct Answer: B

  The octal notation "777" represents full permissions (read, write, and execute) for the owner, group, and others. To ensure only the root user can modify and execute the script, we need to remove write and execute permissions for group and others while keeping the same permissions for the owner. Therefore, the most appropriate command would be:

  B. chmod u=rwx,g=,o= script_file

  This command sets the owner's permissions to read, write, and execute (u=rwx) while removing all permissions for the group (g=) and others (o=), effectively restricting modification and execution to the root user only.

• Question 139:

  While deploying a new four-node web server cluster, a systems administrator has been instructed to use a technology that will make the website highly available without incurring any additional hardware costs. Which of the following clustering options is the BEST solution?

  A. Active-active

  B. Active-passive

  C. All-nodes

  D. Round robin

  Correct Answer: D

• Question 140:

  A technician runs report and notices utilization on one of the application servers in a round-robin pool is much lower than the others. Which of the following services should be checked FIRST to ensure the server is being fully utilized?

  A. File services

  B. DHCP

  C. ARP

  D. Cluster services

  Correct Answer: D