CompTIA SK0-005 Online Practice Questions and Exam Preparation

CompTIA SK0-005 Online Questions & Answers

• Question 131:

  A video card in an application server was recently replaced. The server administrator is now able to log in locally and view the screen with no issues; however, the administrator notices other performance issues, including the server's slow response time. The administrator reboots the server, but the issues persist. The server's cooling fans are running as normal, and the BIOS shows the dual power supplies are each working at 30%.

  Which of the following is most likely causing the performance issues?

  A. A cable on the motherboard became unseated.
  B. The firmware is incompatible with the video card.
  C. A PSU is having power issues.
  D. A CMOS battery failed.
  E. Environmental temperature issues are being experienced.
  B. The firmware is incompatible with the video card.

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  Explanation

  Replacing hardware components, such as a video card, can sometimes lead to compatibility issues, especially if the system's firmware (BIOS/UEFI) does not support the new hardware. In this scenario, the server operates, and the display functions correctly, but there are performance issues like slow response times. This suggests that while the basic functionality is intact, there may be underlying compatibility problems affecting overall system performance.

• Question 132:

  A junior administrator needs to configure a single RAID 5 volume out of four 200GB drives attached to the server using the maximum possible capacity. Upon completion, the server reports that all drives were used, and the approximate volume size is 400GB.

  Which of the following BEST describes the result of this configuration?

  A. RAID 0 was configured by mistake.
  B. RAID 5 was configured properly.
  C. JBOD was configured by mistake.
  D. RAID 10 was configured by mistake.
  B. RAID 5 was configured properly.

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  Explanation

  The result of configuring a single RAID 5 volume out of four 200GB drives attached to the server using the maximum possible capacity would be a RAID 5 configuration properly set up.

  RAID 5 is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both. It uses block-level striping with distributed parity to achieve redundancy while improving performance by spreading data over multiple disks. In this case, using four 200GB drives in a RAID 5 configuration with block-level striping and distributed parity, the total available capacity would be approximately 600GB (400GB usable), which is the sum of the capacity of three drives minus

  the capacity of one drive (i.e., 3 x 200GB = 600GB - 200GB = 400GB). Therefore, the correct answer is

  B. RAID 5 was configured properly.

• Question 133:

  A technician runs top on a dual-core server and notes the following conditions:

  top ? 14:32:27, 364 days, 14 users load average 60.5 12.4 13.6

  Which of the following actions should the administrator take?

  A. Schedule a mandatory reboot of the server
  B. Wait for the load average to come back down on its own
  C. Identify the runaway process or processes
  D. Request that users log off the server
  C. Identify the runaway process or processes

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  Explanation

  Load Average in Linux is a metric that is used by Linux users to keep track of system resources. It also helps you monitor how the system resources are engaged. To understand the Load Average in Linux, we need to know what do we define

  as load. In a Linux system, the load is a measure of CPU utilization at any given moment.

  It refers to the number of processes which are either currently being executed by the CPU or are waiting for execution.

  An idle system has a load of 0. With each process that is being executed or is on the waitlist, the load increases by 1.

  Occasionally a process will stop responding to the system and run wild. These processes ignore their scheduling priority and insist on taking up 100% of the CPU. Because other processes can only get limited access to the CPU, the machine

  begins to run very slowly.

  https://www.digitalocean.com/community/tutorials/load-average-in-linux

  https://docs.cs.byu.edu/doku.php?id=runaway-processes

• Question 134:

  Which of the following server types would benefit MOST from the use of a load balancer?

  A. DNS server
  B. File server
  C. DHCP server
  D. Web server
  D. Web server

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  Explanation

  The server type that would benefit most from the use of a load balancer is web server. A web server is a server that hosts web applications or websites and responds to requests from web browsers or clients. A load balancer is a device or software that distributes network traffic across multiple servers based on various criteria, such as availability, capacity, or performance. A load balancer can improve the scalability, reliability, and performance of web servers by balancing the workload and preventing any single server from being overloaded or unavailable.

  https://www.dnsstuff.com/what-is-server-load-balancing

• Question 135:

  SIMULATION

  Users report that the FinanceApp software is not running, and they need immediate access. Issues with the FinanceApp software occur every week after the IT team completes server system updates. The users, however, do not want to contact the help desk every time the issue occurs. The users also report the new MarketApp software is not usable when it crashes, which can cause significant downtime. The technician who restarted the MarketApp software noticed it is running under a test account, which is a likely cause of the crashes.

  INSTRUCTIONS

  Using the Services menu provided, modify the appropriate application services to remedy the stated issues.

  

  A. See the solution in explanation.
  A. See the solution in explanation.

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  Explanation

  FinanceApp software is running as a service named "FinanceApp Service". The service description says "Provides financial data and calculations for the FinanceApp software". The service status is "Stopped", which means that the service is not running and the software is not functional. The service startup type is "Manual", which means that the service needs to be started manually by the user or the administrator. The service log on as is "Local System", which means that the service runs under a predefined local account that has extensive privileges on the local computer. To fix the issue with the FinanceApp software, you need to do two things:

  First, you need to start the service, so that the software can run. To do this, you can right-click on the service name and select "Start" from themenu. Alternatively, you can select the service name and click on the "Start" button on the toolbar. You should see a message saying that the service has started successfully. Second, you need to change the service startup type, so that the service can start automatically every time the server boots up. This way, you don't have to contact the help desk every time the issue occurs. To do this, you can right-click on the service name and select "Properties" from the menu. Alternatively, you can select the service name and click on the "Properties" button on the toolbar. You should see a window with several tabs and options. On the "General" tab, under "Startup type", you can select "Automatic" from the drop-down list. Then, click on "OK" to save your changes.

  By doing these two steps, you should be able to use the FinanceApp software without any problems.

  The MarketApp software is running as a service named "MarketApp Service". The service description says "Provides market data and analysis for the MarketApp software". The service status is "Running", which means that the service is running and the software is functional. However, as you reported, the software may crash sometimes, which can cause significant downtime. The service startup type is "Automatic", which means that the service starts automatically every time the server boots up. The service log on as is "TestAccount", which is a test account that was probably used for development or testing purposes. To fix the issue with the MarketApp software, you need to do one thing:

  You need to change the service log on as, so that the service runs under a proper account that has sufficient permissions and security settings for production use. To do this, you can right-click on the service name and select "Properties" from the menu. Alternatively, you can select the service name and click on the "Properties" button on the toolbar. You should see a window with several tabs and options. On the "Log On" tab, under "Log on as", you can select either "Local System account" or "This account". If you choose "Local System account", then the service will run under a predefined local account that has extensive privileges on the local computer. If you choose "This account", then you will need to enter a valid username and password for an account that has appropriate permissions and security settings for running the service. You may need to consult with your IT team or your software vendor to determine which option is best for your situation.

  Then, click on "OK" to save your changes.

• Question 136:

  A junior administrator reported that the website used for anti-malware updates is not working. The senior administrator then discovered all requests to the anti-malware site are being redirected to a malicious site. Which of the following tools should the senior administrator check FIRST to identify the potential cause of the issue?

  A. Data loss prevention
  B. File integrity monitor
  C. Port scanner
  D. Sniffer
  D. Sniffer

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  Explanation

• Question 137:

  Which of the following life-cycle management phases deals with a server that is no longer in operation?

  A. End-of-life
  B. Disposal
  C. Usage
  D. Procurement
  B. Disposal

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  Explanation

• Question 138:

  A server technician is installing application updates on a Linux server. When the technician tries to install a MySQL update, the GUI displays the following error message: AVC denial. Which of the following should the technician do for the MySQL update to install?

  A. Download the update manually and run a checksum utility to verify file integrity.
  B. Issue the setenforce 0 command.
  C. Create a firewall rule to allow port 3306 through the firewall.
  D. Issue the yum -y update mysql command.
  B. Issue the setenforce 0 command.

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  Explanation

  The AVC denial error message indicates that SELinux (Security-Enhanced Linux) is preventing the MySQL update from installing. SELinux is a security module that enforces mandatory access control policies on Linux systems. To install the

  MySQL update, the technician should issue the setenforce 0 command, which temporarily disables SELinux enforcement until the next reboot. Downloading the update manually, creating a firewall rule, or issuing the yum -y update mysql

  command will not resolve the error.

  References:

  [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Server Administration, Objective 4.3: Given a scenario, troubleshoot server issues using appropriate tools.

• Question 139:

  A security team must ensure that unauthorized individuals are unable to tailgate through the data center's entrance. Which of the following should be implemented to stop this type of breach from happening?

  A. Access control vestibule
  B. Cameras
  C. Bollards
  D. Biometrics
  A. Access control vestibule

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  Explanation

  Tailgating is a security breach where an unauthorized person follows an authorized individual into a secured area without proper credentials. To prevent tailgating, implementing an access control vestibule, also known as a mantrap, is highly

  effective. An access control vestibule is a small room with two interlocking doors, where the first door must close and lock before the second door can be opened. This setup ensures that only one person can enter the secured area at a time,

  effectively preventing unauthorized individuals from gaining access by following someone else.

  Other Options:

  Option B, Cameras: While surveillance cameras can monitor and record entrances, they do not physically prevent tailgating. They serve as a deterrent and provide evidence after an incident has occurred but do not stop unauthorized entry in

  real- time.

  Option C, Bollards: Bollards are physical barriers used to prevent vehicular access to certain areas. They are not effective in preventing unauthorized individuals from tailgating into a building or secured area. Option D, Biometrics: Biometric

  systems (e.g., fingerprint or retina scanners) verify the identity of individuals but do not address the issue of someone following an authorized person through an open door. Without physical barriers like an access control vestibule, tailgating

  can still occur even with biometric systems in place. Therefore, the most effective measure to prevent tailgating is the implementation of an access control vestibule.

  References:

  CompTIA Server+ Certification Exam Objectives (SK0-005): Security and Disaster Recovery ?Physical Security Concepts

• Question 140:

  A technician has received tickets reporting a server is responding slowly during business hours. Which of the following should the technician implement so the team will be informed of this behavior in real time?

  A. Log rotation
  B. Alerts
  C. Reports
  D. Log shipping
  B. Alerts

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  Explanation