CompTIA SK0-005 Online Practice Questions and Exam Preparation

CompTIA SK0-005 Online Questions & Answers

• Question 221:

  A technician needs to deploy an operating system that would optimize server resources. Which of the following server installation methods would BEST meet this requirement?

  A. Full
  B. Bare metal
  C. Core
  D. GUI
  C. Core

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  Explanation

  The server installation method that would optimize server resources is core. Core is a minimal installation option that is available for some operating systems, such as Windows Server and Linux. Core installs only the essential components

  and features of the operating system, without any graphical user interface (GUI) or other unnecessary services or applications. Core reduces the disk footprint, memory usage, CPU consumption, and attack surface of the server, making it

  more efficient and secure. Core can be managed remotely using command-line tools, PowerShell, or GUI tools.

  https://docs.microsoft.com/en-us/windows-server/administration/performance-tuning/hardware/

• Question 222:

  Several mobile users are reporting intermittent performance issues when attempting to access network shares on the file server. After some investigation, the server administrator notices the server resources are running at maximum capacity, even during non-peak usage times. A recent port scan of the network identified this server as having too many unnecessary ports open to the public.

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

  A. Incorrect share permissions for mobile users
  B. Improper privilege escalation
  C. A virus infection
  D. A misconfigured firewall rule
  C. A virus infection

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  Explanation

  The fact that the server is running at maximum capacity, combined with the open ports, suggests that the server may have been compromised bya virus infection. Malware can exploit unnecessary open ports, leading to resource exhaustion

  and performance issues.

  Virus infection (Answer C):Malware often exploits open ports and consumes system resources, leading to performance degradation.

  Incorrect share permissions (Option A):This would affect access but not resource utilization.

  Improper privilege escalation (Option B):This refers to unauthorized users gaining higher access rights, but it doesn't explain the high resource usage. Misconfigured firewall rule (Option D):A misconfigured firewall could allow unnecessary

  traffic, but it's less likely to cause performance issues unless combined with malware.

  This topic is covered underSK0-005 Objective 4.2: Explain server security concepts and best practices.

• Question 223:

  A security analyst completed a port scan of the corporate production-server network. Results of the scan were then provided to a systems administrator for immediate action. The following table represents the requested changes:

  

  The systems administrator created local firewall rules to block the ports indicated above. Immediately, the service desk began receiving calls about the internet being down. The systems administrator then reversed the changes, and the internet became available again. Which of the following ports on DNSSrv must remain open when the firewall rules are reapplied?

  A. 20
  B. 21
  C. 22
  D. 23
  E. 53
  E. 53

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  Explanation

• Question 224:

  An administrator receives an alert that one of the virtual servers has suddenly crashed. The administrator confirms the data center does not have any power failures and then connects to the remote console of the crashed server. After connecting to the server console, which of the following should the administrator complete first?

  A. Use the keyboard command Alt+F12 to switch to the kernel log screen.
  B. Perform a hard reboot on the server and monitor the server startup.
  C. Collect a screenshot of the PSOD and note the details after the line detailing the OS version.
  D. Collect a core dump from the server and store locally before rebooting the hardware.
  C. Collect a screenshot of the PSOD and note the details after the line detailing the OS version.

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  Explanation

• Question 225:

  A virtual host has four NICs and eight VMs. Which of the following should the technician configure to enable uplink redundancy?

  A. VM
  B. vNIC
  C. vSwitch
  D. vCPU
  E. vHBA
  C. vSwitch

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  Explanation

  Uplink redundancy is a method used to ensure that if one physical network interface card (NIC) fails, the network connectivity for the virtual machines (VMs) does not go down. This is typically achieved by configuring multiple NICs to connect to a single virtual switch (vSwitch) and setting up NIC teaming or bonding. The vSwitch manages the internal network traffic between the VMs and the outside network by using the physical NICs assigned to it. By configuring the vSwitch with multiple NICs, you can create redundancy, so if one NIC fails, the other NICs can take over the traffic, ensuring continuous network connectivity.

• Question 226:

  A security analyst suspects a remote server is running vulnerable network applications. The analyst does not have administrative credentials for the server. Which of the following would MOST likely help the analyst determine if the applications are running?

  A. User account control
  B. Anti-malware
  C. A sniffer
  D. A port scanner
  D. A port scanner

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  Explanation

  User Account Control (UAC)

  Administrator and root accounts are the most highly privileged accounts in an operating system. When a server is left logged on with a privileged account, it creates a huge security issue. Most of the server operating systems you will

  encounter today incorporate the ability of an administrator or a root account holder to use a nonprivileged account as standard operating procedure and elevate their privileges as needed without logging off and logging back in as root.

  The User Account Control feature in Windows and the use of the sudo command in Linux make this possible. Using either system an administrator can elevate their privileges for a specific task and that security context ends when they are

  finished with that task.

  In Windows this can be done in the GUI by right-clicking the icon representing the task and selecting Run As Administrator

  UAC REQUIRES administrator-level access, provided answer is not correct.

• Question 227:

  A technician needs to restore data from a backup. The technician has these files in the backup inventory:

  

  Which of the following backup types is being used if the file 01062020.bak requires another file to restore data?

  A. Full
  B. Incremental
  C. Snapshot
  D. Differential
  B. Incremental

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  Explanation

• Question 228:

  A server administrator wants to ensure a storage array can survive the failure of two drives without the loss of data. Which of the following RAID levels should the administrator choose?

  B. 1
  C. 5
  D. 6
  D. 6

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  Explanation

  To ensure a storage array can survive the failure of two drives without losing data, the server administrator should choose RAID 6. RAID 6 provides two levels of parity protection, which means that data can be reconstructed even if two drives fail simultaneously. This is achieved by storing two sets of parity data across all drives in the array, which allows the array to survive multiple drive failures while maintaining data integrity.

  RAID 0 does not provide any redundancy and does not protect against drive failures. RAID 1 provides mirroring of data between two drives, but it only protects against the failure of a single drive. RAID 5 provides a single level of parity protection, which allows the array to survive a single drive failure, but not two failures.

• Question 229:

  A server administrator needs to deploy five VMs, all of which must have the same type of configuration. Which of the following would be the MOST efficient way to perform this task?

  A. Snapshot a VM.
  B. Use a physical host.
  C. Perform a P2V conversion.
  D. Use a VM template.
  D. Use a VM template.

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  Explanation

  Deploying a virtual machine from a template creates a virtual machine that is a copy of the template. The new virtual machine has the virtual hardware, installed software, and other properties that are configured for the template.

  The most efficient way to perform the task of deploying five VMs with the same type of configuration is to use a VM template. A template is a preconfigured virtual machine image that contains an operating system, applications, settings, and other components. A template can be used to create multiple identical or customized VMs quickly and easily, without having to install and configure each VM from scratch. A template can save time and ensure consistency across VMs.

  https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.vm_admin.doc/GUID-8254CD05-CC06-491D-BA56-A773A32A8130.html

• Question 230:

  A user is unable to modify les on a Windows leshare. A technician examines the system and determines the user is a member of Group A. Group A was granted full control over the les. Which of the following is MOST likely causing the access issues?

  A. SIEM policies
  B. IDS rules
  C. Share permissions
  D. Firewall ports
  C. Share permissions

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  Explanation