CompTIA CompTIA Certifications SK0-005 Questions & Answers

• Question 161:

  An administrator is sizing a new server that will run a 1TB database. One of the processor options is the size of the L2 cache. The administrator picks the processor with the least amount of L2 cache. Which of the following is an outcome of this selection?

  A. The processor will be faster with a lower L2 cache, speeding up database access times.

  B. The database will be slower because of a lower amount of cache hits.

  C. Database access does not rely on cache, so there will be no difference in performance.

  D. The cost of the processor will be higher.

  Correct Answer: B

• Question 162:

  Which of the following steps in the troubleshooting theory should be performed after a solution has been implemented? (Choose two.)

  A. Perform a root cause analysis

  B. Develop a plan of action

  C. Document the findings

  D. Escalate the issue

  E. Scope the issue

  F. Notify the users

  Correct Answer: AC

  1 Identify the problem and determine the scope 2 Establish a theory of probable cause (question the obvious) 3 Test the theory to determine the cause 4 Establish a plan of action to resolve the problem (Notify impacted users is here) 5 Implement the solution or escalate 6 Verify full system functionality and, if applicable, implement preventive measures 7 Perform a root cause analysis 8 Document findings, actions, and outcomes throughout the process

• Question 163:

  A server in a remote datacenter is no longer responsive. Which of the following is the BEST solution to investigate this failure?

  A. Remote desktop

  B. Access via a crash cart

  C. Out-of-band management

  D. A Secure Shell connection

  Correct Answer: C

  The best solution to investigate the failure of a server in a remote datacenter is out-of-band management. Out-of-band management is a method of accessing and controlling a server or a device using a dedicated channel that is separate from its normal network connection. Out-of-band management can use various technologies, such as serial ports, modems, KVM switches, or dedicated management cards or interfaces. Out- of-band management can provide remote access to servers or devices even when they are powered off, unresponsive, or disconnected from the network. Out-of-band management can enable troubleshooting, configuration, maintenance, or recovery tasks without requiring physical presence at the server location.

  Reference: https://www.lantronix.com/wp-content/uploads/pdf/Data_Center_Mgmt_WP.pdf

• Question 164:

  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

  Correct Answer: C

  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 165:

  A technician is connecting a Linux server to a share on a NAS. Which of the following is the MOST appropriate native protocol to use for this task?

  A. CIFS

  B. FTP

  C. SFTP

  D. NFS

  Correct Answer: D

  The most appropriate native protocol to use for connecting a Linux server to a share on a NAS is NFS. NFS (Network File System) is a protocol that allows file sharing and remote access over a network. NFS is designed for Unix-like operating systems, such as Linux, and supports features such as symbolic links, hard links, file locking, and file permissions. NFS uses mount points to attach remote file systems to local file systems, making them appear as if they are part of the local file system. NFS can provide fast and reliable access to files stored on a NAS (Network Attached Storage), which is a device that provides centralized storage for network devices.

• Question 166:

  A server is reporting a hard drive S.M.A.R.T. error. When a technician checks on the drive, however, it appears that all drives in the server are functioning normally. Which of the following is the reason for this issue?

  A. A S.M.A.R.T. error is a predictive failure notice. The drive will fail in the near future and should be replaced at the next earliest time possible

  B. A S.M.A.R.T. error is a write operation error. It has detected that the write sent to the drive was incorrectly formatted and has requested a retransmission of the write from the controller

  C. A S.M.A.R.T. error is simply a bad sector. The drive has marked the sector as bad and will continue to function properly

  D. A S.M.A.R.T. error is an ECC error. Due to error checking and correcting, the drive has corrected the missing bit and completed the write operation correctly.

  Correct Answer: A

  A S.M.A.R.T. error is a predictive failure notice. The drive will fail in the near future and should be replaced at the next earliest time possible. S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) is a feature that monitors the health and performance of hard drives and alerts the user of any potential problems or failures. S.M.A.R.T. can detect various indicators of drive degradation, such as bad sectors, read/write errors, temperature, or spin-up time. If a S.M.A.R.T. error is reported, it means that the drive has exceeded a predefined threshold of acceptable operation and is likely to fail soon. The drive may still function normally for a while, but it is recommended to back up the data and replace the drive as soon as possible to avoid data loss or system downtime.

• Question 167:

  A datacenter technician is attempting to troubleshoot a server that keeps crashing. The server runs normally for approximately five minutes, but then it crashes. After restoring the server to operation, the same cycle repeats. The technician confirms none of the configurations have changed, and the load on the server is steady from power-on until the crash. Which of the following will MOST likely resolve the issue?

  A. Reseating any expansion cards in the server

  B. Replacing the failing hard drive

  C. Reinstalling the heat sink with new thermal paste

  D. Restoring the server from the latest full backup

  Correct Answer: C

  The most likely solution to resolve the issue of the server crashing after running normally for approximately five minutes is to reinstall the heat sink with new thermal paste. A heat sink is a device that dissipates heat from a component, such as a processor or a graphics card, by transferring it to a cooling medium, such as air or liquid. A heat sink is usually attached to the component using thermal paste, which is a substance that fills the gaps between the heat sink and the component and improves thermal conductivity. Thermal paste can degrade over time and lose its effectiveness, resulting in overheating and performance issues. If a server crashes after running for a short period of time, it may indicate that the processor is overheating due to insufficient cooling. To resolve this issue, the technician should remove the heat sink, clean the old thermal paste, apply new thermal paste, and reinstall the heat sink.

• Question 168:

  A server administrator is exporting Windows system files before patching and saving them to the following location:

  \\server1\ITDept\

  Which of the following is a storage protocol that the administrator is MOST likely using to save this data?

  A. eSATA

  B. FCoE

  C. CIFS

  D. SAS

  Correct Answer: C

  The storage protocol that the administrator is most likely using to save data to the location \server1\ITDept\ is CIFS. CIFS (Common Internet File System) is a protocol that allows file sharing and remote access over a network. CIFS is based on SMB (Server Message Block), which is a protocol that enables communication between devices on a network. CIFS uses UNC (Universal Naming Convention) paths to identify network resources, such as files or folders. A UNC path has the format \servername\sharename\path\filename. In this case, server1 is the name of the server, ITDept is the name of the shared folder, and \ is the path within the shared folder.

• Question 169:

  A server administrator needs to check remotely for unnecessary running services across 12 servers. Which of the following tools should the administrator use?

  A. DLP

  B. A port scanner

  C. Anti-malware

  D. A sniffer

  Correct Answer: B

  The tool that the administrator should use to check for unnecessary running services across 12 servers is a port scanner. A port scanner is a tool that scans a network device for open ports and identifies the services or applications that are running on those ports. A port scanner can help detect any unauthorized or unwanted services that may pose a security risk or consume network resources. A port scanner can also help troubleshoot network connectivity issues or verify firewall rules.

  Reference: https://www.getsafeonline.org/business/articles/unnecessary-services/

• Question 170:

  A company is building a new datacenter next to a busy parking lot. Which of the following is the BEST strategy to ensure wayward vehicle traffic does not interfere with datacenter operations?

  A. Install security cameras

  B. Utilize security guards

  C. Install bollards

  D. Install a mantrap

  Correct Answer: C

  The best strategy to ensure wayward vehicle traffic does not interfere with datacenter operations is to install bollards. Bollards are sturdy posts that are installed around a perimeter to prevent vehicles from entering or crashing into a protected area. Bollards can provide physical security and deterrence for datacenters that are located near busy roads or parking lots. Bollards can also prevent accidental damage or injury caused by vehicles that lose control or have faulty brakes.