CompTIA SK0-005 Online Practice Questions and Exam Preparation

CompTIA SK0-005 Online Questions & Answers

• Question 541:

  Which of the following types of asset management documentation is commonly used as a reference when processing the replacement of a faulty server component?

  A. Warranty
  B. Purchase order
  C. License
  D. Baseline document
  A. Warranty

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  Explanation

  A warranty is a type of asset management documentation that is commonly used as a reference when processing the replacement of a faulty server component. A warranty is a guarantee from the manufacturer or vendor that covers the

  repair or replacement of defective parts within a specified period of time. A purchase order, a license, or a baseline document are not directly related to the replacement of a faulty server component.

  References: [CompTIA Server+

  Certification Exam Objectives], Domain 1.0:

  Server Architecture, Objective 1.4: Explain asset management and documentation processes.

• Question 542:

  A server technician has received reports of database update errors. The technician checks the server logs and determines the database is experiencing synchronization errors. To attempt to correct the errors, the technician should FIRST ensure:

  A. the correct firewall zone is active
  B. the latest firmware was applied
  C. NTP is running on the database system
  D. the correct dependencies are installed
  C. NTP is running on the database system

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  Explanation

  The first thing that the technician should ensure to correct the database synchronization errors is that NTP is running on the database system. NTP (Network Time Protocol) is a protocol that synchronizes the clocks of network devices with a reference time source, such as an atomic clock or a GPS receiver. NTP ensures that all devices on a network have accurate and consistent time settings, which can affect various functions and applications. Database synchronization is a process of maintaining data consistency and integrity across multiple database servers or instances. Database synchronization can depend on accurate time settings, as time stamps are often used to determine which data is newer or older, and which data should be updated or overwritten. If NTP is not running on the database system, it may cause time drift or discrepancy between different database servers or instances, which can result in synchronization errors or data conflicts.

• Question 543:

  An administrator needs to increase the size of an existing RAID 6 array that is running out of available space. Which of the following is the BEST way the administrator can perform this task?

  A. Replace all the array drives at once and then expand the array.
  B. Expand the array by changing the RAID level to 6.
  C. Expand the array by changing the RAID level to 10.
  D. Replace the array drives one at a time and then expand the array.
  D. Replace the array drives one at a time and then expand the array.

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  Explanation

• Question 544:

  A company recently implemented VolP across a multicampus environment with ten locations. The company uses many network technologies, including fiber, copper, and wireless. Users calling between three of the locations have reported that voices sound strange. Which of the following should be monitored to narrow down the issue?

  A. Disk IOPS
  B. CPU utilization
  C. RAM utilization
  D. Network latency
  D. Network latency

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  Explanation

  Network latency is the measure of delay in data transmission over a network. It can affect the quality of voice over IP (VoIP) calls by causing echo, jitter, or distortion. Network latencycan be caused by various factors such as

  network congestion, distance, routing, or bandwidth. To monitor network latency, you can use tools such as ping, traceroute, or network analyzers.

  References: CompTIA Server+ Study Guide, Chapter 6: Networking, page 237.

• Question 545:

  A server administrator just installed a new physical server and needs to harden the applications on the server. Which of the following best describes a method of application hardening?

  A. Install the latest patches.
  B. Disable unneeded hardware.
  C. Set the boot order.
  D. Enable a BIOS password.
  A. Install the latest patches.

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  Explanation

• Question 546:

  A user logs in to a Linux server and attempts to run the following command:

  sudo emacs /root/file

  However, the user gets the following message:

  User userid is not allowed to execute `emacs' on this server.

  Which of the following would BEST allow the user to find out which commands can be used?

  A. visudo | grep userid
  B. sudo -1 -U userid
  C. cat /etc/passwd
  D. userlist | grep userid
  B. sudo -1 -U userid

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  Explanation

  The BEST option to allow the user to find out which commands can be used is option B: sudo -1 -U userid.

  This command allows the user to run a shell with the privileges of the specified user (-U userid) while preserving their own environment (-i). This means that the user will be able to see the commands they are authorized to run, and also

  allows them to test running those commands as the authorized user.

  Option A (visudo | grep userid) runs the visudo command with the intention of displaying the sudoers file contents that have configuration options for the specified user, but it will not show the available commands.

  Option C (cat /etc/passwd) shows the contents of the /etc/passwd file, which contains user account information including usernames, user IDs, home directories, and login shells. However, it will not show the commands that the user can run.

  Option D (userlist | grep userid) does not seem to be a valid command and would not help the user find the available commands they can run.

• Question 547:

  An administrator is troubleshooting performance issues on a server that was recently upgraded. The administrator met with users/stakeholders and documented recent changes in an effort to determine whether the server is better or worse since the changes.

  Which of the following would BEST help answer the server performance question?

  A. Server performance thresholds
  B. A server baseline
  C. A hardware compatibility list
  D. An application service-level agreement
  B. A server baseline

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  Explanation

  A server baseline is a set of metrics that represents the normal performance and behavior of a server under a specific workload and configuration. A server baseline can help answer the server performance question by comparing the current

  performance with the previous performance before the upgrade. This can help identify any changes or issues that may have affected the server performance.

  References:

  https://www.comptia.org/training/resources/exam-objectives/comptia-server-sk0-005-exam-objectives (Objective 4.2)

• Question 548:

  A technician has been tasked to install a new CPU. Prior to the installation, the server must be configured. Which of the following should the technician update?

  A. The RAID card
  B. The BIOS
  C. The backplane
  D. The HBA
  B. The BIOS

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  Explanation

• Question 549:

  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.
  C. Replace both failed drives at the same time.

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  Explanation

  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 550:

  Which of the following open ports should be closed to secure the server properly? (Choose two.)

  A. 21
  B. 22
  C. 23
  D. 53
  E. 443
  F. 636
  A. 21
  C. 23

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  Explanation

  The administrator should close ports 21 and 23 to secure the server properly. Port 21 is used for FTP (File Transfer Protocol), which is an unsecure protocol that allows file transfer between a client and a server over a network connection.

  FTP does not encrypt the data or the credentials that are transmitted, making them vulnerable to interception or modification by attackers. Port 23 is used for Telnet, which is an unsecure protocol that allows remote login and command

  execution over a network connection using a CLI. Telnet does not encrypt the data or the credentials that are transmitted, making them vulnerable to interception or modification by attackers.

  https://www.csoonline.com/article/3191531/securing-risky-network-ports.html