CompTIA SK0-005認証された練習解答、必ずあなたを試験合格させる！[2025]
有効な合格方法CompTIA Server+のSK0-005試験問題集
質問 # 178
A server administrator has been creating new VMs one by one. The administrator notices the system requirements are very similar, even with different applications. Which of the following would help the administrator accomplish this task in the SHORTEST amount of time and meet the system requirements?
- A. System Restore
- B. Snapshot
- C. Deduplication
- D. Template
正解：D
解説：
The method that would help the administrator accomplish the task of creating new VMs in the shortest amount of time and meet the system requirements is 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.
質問 # 179
A startup is migrating a stand-alone application that stores Pll to the cloud. Which of the following should be encrypted?
- A. Data in transit
- B. Data backups
- C. Data at rest
- D. Data archives
正解：C
解説：
Scenario: Migrating a stand-alone application storing PII to the cloud.
Data to Encrypt: Data at rest (Option B) should be encrypted:
Data in transit (Option A) and backups (Option C) are also important but not the primary concern here.
Data archives (Option D) may or may not contain sensitive data.
質問 # 180
A server administrator needs to check remotely for unnecessary running services across 12 servers. Which of the following tools should the administrator use?
- A. A sniffer
- B. A port scanner
- C. DLP
- D. Anti-malware
正解：B
解説：
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/
質問 # 181
Which of the following actions should a server administrator take once a new backup scheme has been configured?
- A. Clone the configuration
- B. Check the media integrity
- C. Overwrite the backups
- D. Run a restore test
正解：B
解説：
Only a scheme has been created. No backups have been taken yet so you cannot run a test restore.
質問 # 182
An administrator discovers a Bash script file has the following permissions set in octal notation;
777
Which of the following is the MOST appropriate command to ensure only the root user can modify and execute the script?
- A. chmod u=rwx
- B. chmod g-rwx
- C. chmod u+wx
- D. chmod go-rw>:
正解：D
解説：
chmod is a command-line tool that changes the permissions of files and directories in Linux and Unix systems. chmod go-rwx means to remove read, write, and execute permissions for group and other users from a file or directory. This can ensure only the root user can modify and execute the script, since root user has full access to all files and directories regardless of their permissions. References: https://linux.die.net/man/1/chmod
質問 # 183
A technician is tasked with upgrading 24 hosts simultaneously with a Type 1 hypervisor. Which of the following protocols should the technician use for this upgrade?
- A. SSH
- B. HTTP
- C. VPN
- D. TFTP
正解：D
解説：
TFTP (Trivial File Transfer Protocol) is a simple and lightweight protocol that can be used to transfer files over a network. TFTP is often used to upgrade firmware or software on network devices, such as routers, switches, or servers. TFTP can also be used to install a Type 1 hypervisor, such as VMware ESXi, on multiple hosts simultaneously12.
Reference = 1: How to Install VMware ESXi Type 1 Hypervisor - MatthewEaton.net(https://mattheweaton.net/posts/how-to-install-vmware-esxi-type-1-hypervisor/) 2: Explore Type 1 Hypervisors - Set Up Virtual Machines Using VirtualBox and vSphere - OpenClassrooms(https://openclassrooms.com/en/courses/7163136-set-up-virtual-machines-using-virtualbox-and-vsphere/7358546-explore-type-1-hypervisors)
質問 # 184
Which of the following, if properly configured, would prevent a user from installing an OS on a server?
(Select TWO).
- A. SELInux
- B. Bootloader password
- C. Group Policy Object
- D. Root password
- E. BIOS/UEFI password
- F. Administrator password
正解：B、E
解説：
Explanation
These are two methods that can prevent a user from installing an OS on a server if properly configured. A bootloader password is a password that protects the bootloader from unauthorized access or modification. The bootloader is a program that loads the operating system into memory when the system boots up. If a user does not know the bootloader password, they cannot change the boot order or boot from another device such as a CD-ROM or USB drive that contains an OS installation media. A BIOS/UEFI password is a password that protects the BIOS (Basic Input Output System) or UEFI (Unified Extensible Firmware Interface) from unauthorized access or modification. The BIOS or UEFI is a firmware that initializes and configures the hardware components of the system before loading
質問 # 185
A server administrator needs to set up active-passive load balancing for an environment with multiple network paths. The traffic should be directed to one path and switched only in the event that the original path becomes unavailable. Which of the following describes this scenario?
- A. Heartbeat
- B. Round robin
- C. Link aggregation
- D. Most recently used
正解：A
解説：
In an active-passive load balancing configuration, one path (or server) handles all the traffic while the other remains in standby mode, ready to take over if the active path becomes unavailable. This setup is typically monitored via a heartbeat mechanism, where the standby server checks the availability of the active server and takes over when it detects a failure.
* Heartbeat (Answer B): This term refers to the monitoring process that checks the availability of the active path in an active-passive configuration.
* Most recently used (Option A): This describes a load-balancing method where the most recently used path or server is prioritized, but it doesn't describe an active-passive setup.
* Link aggregation (Option C): This refers to combining multiple network connections for increased throughput, not for failover purposes.
* Round robin (Option D): This load-balancing method alternates traffic between all available paths, which doesn't match the active-passive description.
CompTIA Server+ Reference:This topic is covered under SK0-005 Objective 1.4: Summarize methods used to manage network connections.
質問 # 186
A company wants to find an affordable way to simulate a fail over of a critical application. The company does not currently have a solution for it. The application consists of 15 servers, and the company would like to simulate on production configurations and IP address schemes. Which of the following would be the most cost-effective solution?
- A. Build a warm site and perform a fail over of the application.
- B. Perform a tabletop fail over of the application.
- C. Build a cold site and perform a fail over of the application.
- D. Build a cloud laaS and perform a fail over of the application.
- E. Build a hot site and perform a fail over of the application.
正解：D
解説：
Explanation
Cloud IaaS (Infrastructure as a Service) is a service model that allows users to rent virtualized computing resources over the internet, such as servers, storage, network, and software. Cloud IaaS can provide several benefits for disaster recovery and failover scenarios, such as:
Lower cost: Cloud IaaS can reduce the capital and operational expenses of building and maintaining a physical disaster recovery site, as users only pay for the resources they use on demand12.
Scalability: Cloud IaaS can offer flexible and elastic scalability of resources, as users can easily provision or deprovision resources according to their needs and workload12.
Availability: Cloud IaaS can ensure high availability and reliability of the application, as users can leverage the cloud provider's redundant and geographically distributed infrastructure12.
Simplicity: Cloud IaaS can simplify the failover process, as users can use the cloud provider's tools and services to automate and orchestrate the failover operations12.
Therefore, building a cloud IaaS and performing a failover of the application would be the most cost-effective solution for the company, as it would allow them to simulate a failover of a critical application on production configurations and IP address schemes without investing in a physical disaster recovery site.
質問 # 187
Which of the following is a system that scans outgoing email for account numbers, sensitive phrases, and other forms of Pll?
- A. SIEM
- B. HIDS
- C. IPS
- D. DLP
正解：D
解説：
DLP stands for Data Loss Prevention and it is a system that scans outgoing email for account numbers, sensitive phrases, and other forms of PII (Personally Identifiable Information). DLP can help prevent data breaches, comply with regulations, and protect the privacy of customers and employees. DLP can also block, encrypt, or quarantine emails that contain sensitive data. References:
https://www.comptia.org/training/resources/exam-objectives/comptia-server-sk0-005-exam-objectives (Objective 3.2)
質問 # 188
A technician is monitoring a server and notices there is only one NIC plugged in. but the server has two. The NIC is oversaturated, and the technician would like to increase the available bandwidth. Which of the following solutions would be the BEST option to increase the speed of this NIC?
- A. Link aggregation
- B. Active-active
- C. Heartbeat
- D. Most recently used
正解：A
質問 # 189
Users ate experiencing issues when trying to access resources on multiple servers. The servers are virtual and run on an ESX server. A systems administrator is investigating but is unable to connect to any of the virtual servers. When the administrator connects to the host, a purple screen with while letters appears. Which of the following troubleshooting steps should the administrator perform FIRST?
- A. Check the power supplies
- B. Reseat the processors.
- C. Reinstall the ESX server.
- D. Review the log files.
正解：D
解説：
A purple screen of death (PSOD) is a diagnostic screen with white type on a purple background that's displayed when the VMkernel of a VMware ESXi host experiences a critical error, becomes inoperative and terminates any virtual machines (VMs) that are running.
The other answers could be the issue but are a bit drastic and definitely not something you do FIRST.
https://www.techtarget.com/searchvmware/definition/Purple-Screen-of-Death-PSOD
質問 # 190
A syslog server is configured to use UDP port 514. The administrator uses Telnet to check port
514 against the syslog server. However, the syslog server is not responding. Which of the following is the MOST likely reason why the syslog server is not responding?
- A. Telnet does not work on UDP.
- B. The syslog server is down.
- C. The firewall is blocking UDP port 514
- D. The log is full on the syslog server.
正解：A
質問 # 191
A technician is laying out a filesystem on a new Linux server. Which of the following tools would work BEST to allow the technician to increase a partition's size in the future without reformatting it?
- A. fdisk
- B. Format
- C. DiskPart
- D. LVM
正解：D
解説：
LVM (Logical Volume Manager) is a tool that allows the technician to increase a partition's size in the future without reformatting it on a Linux server. LVM creates logical volumes that can span across multiple physical disks or partitions and can be resized dynamically without losing data. LVM also provides other features such as snapshots, encryption, and RAID. DiskPart, fdisk, and Format are tools that can be used to partition and format disks, but they do not allow increasing a partition's size without reformatting it. References:
https://www.howtogeek.com/howto/40702/how-to-manage-and-use-lvm-logical-volume-management-in-ubuntu/ https://www.howtogeek.com/school/using-windows-admin-tools-like-a-pro/lesson2/https://www.howtogeek.com/howto/17001/how-to-format-a-usb-drive-in-ubuntu-using-gparted/
質問 # 192
A company's servers are all displaying the wrong time. The server administrator confirms the time source is correct. Which of the following is MOST likely preventing the servers from obtaining the correct time?
- A. AHIDS
- B. User account control
- C. A firewall
- D. An antivirus
正解：C
解説：
Explanation
The most likely cause of the servers displaying the wrong time is A. A firewall. A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predefined rules. A firewall can block or allow certain ports, protocols, or applications that are used for network communication.
One of the protocols that is used for time synchronization is the Network Time Protocol (NTP), which requires the use of UDP port 123 for all time synchronization1. If a firewall blocks this port, it can prevent the servers from obtaining the correct time from the time source. Therefore, the server administrator should check the firewall settings and make sure that UDP port 123 is allowed for NTP traffic.
質問 # 193
A company wants to deploy software to all users, Out very few of men will be using the software at any one point in time. Which of the following licensing models would be BEST lot the company?
- A. Per concurrent user
- B. Per instance
- C. Per site
- D. Per core
正解：A
解説：
Explanation
Per concurrent user licensing is a model that allows a fixed number of users to access the software at any one point in time. This model is best for the company that wants to deploy software to all users, but very few of them will be using the software at any one point in time. This way, the company can save money by paying only for the number of simultaneous users, rather than for every user who has access to the software. Per site licensing is a model that allows unlimited users within a specific location to use the software. Per core licensing is a model that charges based on the number of processor cores on the server where the software is installed. Per instance licensing is a model that charges based on the number of copies of the software running on different servers or virtual machines.References:
https://www.pcmag.com/encyclopedia/term/concurrent-use-licensehttps://www.techopedia.com/definition/1440/
質問 # 194
An analyst is planning a new point-to-point Ethernet connection between a university campus and a newly acquired space downtown that is about 5mi (8km) away. The analyst would like the fastest possible connection speed. Which of the following would best meet the analyst's needs?
- A. 1000BASE-LX 1Gb single-mode plenum fiber connection
- B. 1000BASE-T 1Gb copper non-plenum Ethernet connection
- C. 10GBASE-SR 10Gb multimode plenum fiber connection
- D. 10GBASE-T 10Gb copper plenum Ethernet connection
正解：A
解説：
A 1000BASE-LX 1Gb single-mode plenum fiber connection would best meet the analyst's needs for a new point-to-point Ethernet connection between a university campus and a newly acquired space downtown that is about 5mi (8km) away. A 1000BASE-LX is a type of Ethernet standard that supports data transmission at 1 gigabit per second over single-mode fiber cables using long wavelength lasers. A single-mode fiber cable is a type of optical fiber cable that has a small core diameter and allows only one mode of light to propagate through it. A single-mode fiber cable can transmit data over long distances at high speeds, but it requires more expensive transceivers and connectors than multimode fiber cables. A plenum fiber cable is a type of optical fiber cable that has a special coating that prevents the spread of fire or toxic fumes in case of burning. A plenum fiber cable is suitable for installation in plenum spaces, which are areas used for air circulation in buildings, such as above ceilings or below floors. References: [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Networking, Objective 4.2: Given a scenario involving server networking issues (e.
g., network interface card failure), troubleshoot using appropriate tools.
質問 # 195
Which of the following physical security concepts would most likely be used to limit personnel access to a restricted area within a data center?
- A. Data center camouflage
- B. Video surveillance
- C. Bollards
- D. An access control vestibule
正解：D
解説：
Explanation
An access control vestibule is a physical security concept that limits personnel access to a restricted area within a data center. It is a small room or hallway that has two doors: one that leads to the outside and one that leads to the restricted area. The doors are controlled by an electronic lock that requires authentication, such as a card reader, biometric scanner, or keypad. Only authorized personnel can enter the vestibule and access the restricted area. References: CompTIA Server+ Certification Exam Objectives, Domain 5.0: Security, Objective 5.1: Given a scenario, apply physical security methods to a server.
質問 # 196
A technician is configuring a point-to-point heartbeat connection between two servers using IP addressing.
Which of the following is the most efficient
subnet mask for this connection?
- A. /32
- B. /28
- C. /30
- D. /29
正解：C
解説：
Explanation
The most efficient subnet mask for a point-to-point heartbeat connection between two servers using IP addressing is /30. A /30 subnet mask has 255.255.255.252 as its decimal representation and
11111111.11111111.11111111.11111100 as its binary representation. This means that there are only two bits available for the host portion of the IP address, which allows for four possible combinations: 00, 01, 10, and
11. However, the first and the last combinations are reserved for the network address and the broadcast address, respectively. Therefore, only two IP addresses are usable for the point-to-point connection, which is the minimum required for such a link. A /30 subnet mask is also known as a point-to-point prefix because it is commonly used for point-to-point links between routers or servers1.
A /28 subnet mask has 255.255.255.240 as its decimal representation and
11111111.11111111.11111111.11110000 as its binary representation. This means that there are four bits available for the host portion of the IP address, which allows for 16 possible combinations. However, two of them are reserved for the network address and the broadcast address, respectively. Therefore, 14 IP addresses are usable for the subnet, which is more than needed for a point-to-point connection and would result in wasted addresses.
A /29 subnet mask has 255.255.255.248 as its decimal representation and
11111111.11111111.11111111.11111000 as its binary representation. This means that there are three bits available for the host portion of the IP address, which allows for eight possible combinations. However, two of them are reserved for the network address and the broadcast address, respectively. Therefore, six IP addresses are usable for the subnet, which is still more than needed for a point-to-point connection and would result in wasted addresses.
A /32 subnet mask has 255.255.255.255 as its decimal representation and
11111111.11111111.11111111.11111111 as its binary representation. This means that there are no bits available for the host portion of the IP address, which allows for only one possible combination: all ones.
Therefore, only one IP address is usable for the subnet, which is not enough for a point-to-point connection and would result in an invalid configuration.
Therefore, a /30 subnet mask is the most efficient choice for a point-to-point heartbeat connection between two servers using IP addressing because it provides exactly two usable IP addresses without wasting any addresses or creating any conflicts1.
質問 # 197
Users at a company cannot log into a server. An administrator reboots the server with liveCD and executes a df -hcommand. The following is returned:
Which of the following should be done NEXT?
- A. Reformat the boot partition.
- B. Compress or delete log files.
- C. Ask users to clean out their home directories from another server.
- D. Reconfigure the server with a larger primary partition.
正解：B
質問 # 198
Which of the following asset management documents is used to identify the location of a serves within a data center?
- A. Infrastructure diagram
- B. Workflow diagram
- C. Service manual
- D. Rack layout
正解：D
解説：
A rack layout is a document that shows the physical location and arrangement of servers and other devices within a rack. It can include information such as server names, IP addresses, power consumption, and cable connections. A rack layout can help identify and locate servers easily and efficiently in a data center. Verified References: [Rack layout], [Data center]
質問 # 199
An application needs 10GB of RAID 1 for log files, 20GB of RAID 5 for data files, and 20GB of RAID 5 for the operating system. All disks will be 10GB in capacity. Which of the following is the MINIMUM number of disks needed for this application?
- A. 0
- B. 1
- C. 2
- D. 3
正解：C
解説：
To calculate the minimum number of disks needed for this application, we need to consider the RAID levels and their disk requirements. RAID 1 requires a minimum of two disks and provides mirroring, which means that data is duplicated on both disks. RAID 5 requires a minimum of three disks and provides striping with parity, which means that data is distributed across all disks with one disk storing parity information for error correction. RAID 5 can tolerate one disk failure without losing data. To create a 10GB RAID 1 array for log files, we need two 10GB disks. To create a 20GB RAID 5 array for data files, we need four 10GB disks (three for data and one for parity). To create a 20GB RAID 5 array for the operating system, we need another four
10GB disks (three for data and one for parity). Therefore, the total number of disks needed is 2 + 4 + 4 = 10.
However, since we can use different RAID levels for different partitions on the same disk, we can optimize the disk usage by using only eight disks as follows: Disk 1: 10GB RAID 1 (log files) + 10GB RAID 5 (data files) Disk 2: 10GB RAID 1 (log files) + 10GB RAID 5 (data files) Disk 3: 10GB RAID 5 (data files) + 10GB RAID 5 (OS) Disk 4: 10GB RAID 5 (data files) + 10GB RAID 5 (OS) Disk 5: 10GB RAID 5 (parity for data files) + 10GB RAID 5 (OS) Disk 6: 10GB RAID 5 (OS) + unused space Disk 7: 10GB RAID 5 (parity for OS)
+ unused space Disk 8: unused space References: https://en.wikipedia.org/wiki/Standard_RAID_levels
質問 # 200
A server administrator is installing an OS on a new server. Company policy states no one is to log in directly to the server. Which of the following Installation methods is BEST suited to meet the company policy?
- A. Virtualized
- B. Clone
- C. GUI
- D. Core
正解：D
解説：
A core installation is a type of installation method that is best suited to meet the company policy that states no one is to log in directly to the server. A core installation is a minimal installation option that is available when deploying some editions of Windows Server. A core installation includes most but not all server roles and features, but does not include a graphical user interface (GUI). A core installation can only be managed remotely using command-line tools such as PowerShell or Windows Admin Center, or using graphical tools such as Server Manager or Remote Desktop from another computer. This reduces the attack surface, resource consumption, and maintenance requirements of the server. A GUI installation is a type of installation method that includes a graphical user interface (GUI) and allows local or remote management using graphical tools or command-line tools. A virtualized installation is a type of installation method that involves creating and running one or more virtual machines on a physical host using a hypervisor such as Hyper-V or VMware. A clone installation is a type of installation method that involves creating an exact copy of an existing server's configuration and data on another server using tools such as Sysprep or Clonezilla. References:
https://www.howtogeek.com/67469/the-beginners-guide-to-shell-scripting-the-basics/
https://www.howtogeek.com/443611/how-to-encrypt-your-macs-system-drive-removable-devices-and-individua
https://www.howtogeek.com/199068/how-to-upgrade-your-existing-hard-drive-in-under-an-hour/
質問 # 201
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