SK0-005 PDF試験材料2025年最新の実際に出るSK0-005問題集
更新されたのはCompTIA SK0-005問題集PDFオンラインエンジン
Comptia Server+認定は、サーバー管理の専門知識を実証したいITプロフェッショナルにとって貴重な資格です。この認定は、個人がサーバーテクノロジーを深く理解しており、さまざまな環境でサーバーを効果的に管理できることを示しています。さらに、Comptia Server+認定は、個人のサーバー管理スキルの信頼できる指標として、政府機関や企業を含む多くの組織によって認識されています。この認定を取得することにより、ITの専門家はキャリアの見通しを強化し、給与の可能性を高め、雇用市場で競争上の優位性を獲得できます。
質問 # 171
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. Most recently used
- D. Heartbeat
正解：A
解説：
This is the best solution to increase the speed of the NIC because link aggregation is a technique that combines multiple physical network interfaces into a single logical interface. This can increase the bandwidth, redundancy, and load balancing of network traffic. Link aggregation requires both the server and the switch to support it and be configured accordingly. References:
https://www.cisco.com/c/en/us/support/docs/lan-switching/etherchannel/12023-4.html
質問 # 172
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. Reinstall the ESX server.
- B. Check the power supplies
- C. Review the log files.
- D. Reseat the processors.
正解：C
解説：
A purple screen with white letters on an ESX server indicates a kernel panic, which is a fatal error that causes the system to crash and stop functioning3. The first troubleshooting step that an administrator should perform is to review the log files, which may contain information about the cause of the error, such as hardware failures, software bugs, or configuration issues4. Checking the power supplies (A) may not be relevant, as the system is still displaying a screen. Reinstalling the ESX server or reseating the processors (D) are drastic measures that may result in data loss or further damage, and should only be attempted after ruling out other possible causes. References: 3 https://kb.vmware.com/s/article/1014508 4
https://www.altaro.com/vmware/vmware-esxi-purple-screen-death/
質問 # 173
Which of the following types of locks utilizes key fobs or key cards held against a sensor/reader to gain access?
- A. Biometric door lock
- B. Bolting door lock
- C. Electronic door lock
- D. Combination door lock
正解：C
解説：
Lock Type: The type of lock utilizing key fobs or key cards is an electronic door lock (Option C).
Electronic locks use electronic credentials (such as key cards) for access control.
質問 # 174
An administrate is helping to replicate a large amount of data between two Windows servers. The administrator is unsure how much data has already been transferred. Which of the following will BEST ensure all the data is copied consistently?
- A. scp
- B. robocopy
- C. copy
- D. rsync
正解：B
解説：
Robocopy (Robust File Copy) is a command-line tool that can copy files and folders between Windows servers or computers. It has many features and options that can ensure all the data is copied consistently, such as retrying failed copies, resuming interrupted copies, copying permissions and attributes, mirroring source and destination directories, and logging the copy progress and results. Verified References: [Robocopy], [File copy]
質問 # 175
A technician set up a new multifunction printer. After adding the printer to the print server, the technician configured the printer on each user's machine. Several days later, users reported that they were no longer able to print, but scanning to email worked. Which of the following is most likely causing this issue?
- A. The network firewall was enabled.
- B. The printer had DHCP enabled.
- C. The gateway is no longer being reached.
- D. The printer's network interface failed.
正解：B
解説：
The most likely cause of this issue is that the printer had DHCP enabled, which changed its IP address after adding it to the print server and configuring it on each user's machine. DHCP (Dynamic Host Configuration Protocol) is a network protocol that assigns IP addresses and other network configuration parameters to devices automatically, without manual intervention. DHCP can simplify network management and avoid IP conflicts, but it can also cause problems if the devices are not configured to use static or reserved IP addresses. If the printer had DHCP enabled, it might have received a different IP address from the DHCP server after rebooting or reconnecting to the network, which would make it unreachable by the print server and the users' machines that were configured with the previous IP address. Scanning to email would still work, as it does not depend on the print server or the users' machines, but on the printer's SMTP settings and internet connection. References: [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Networking, Objective 4.l: Given a scenario, configure network settings for servers.
質問 # 176
A human resources analyst is attempting to email the records for new employees to an outside payroll company. Each time the analyst sends an email containing employee records, the email is rejected with an error message. Other emails outside the company are sent correctly. Which of the following is MOST likely generating the error?
- A. DLP software
- B. DHCP configuration
- C. Intrusion detection system
- D. Firewall rules
正解：A
解説：
Explanation
DLP (Data Loss Prevention) software is a type of security software that monitors and controls the transfer of sensitive or confidential data outside the organization. DLP software can prevent data breaches, data leaks, or data theft by blocking, encrypting, or alerting on unauthorized data transfers. DLP software can be applied to various channels, such as email, web, cloud, or removable devices.
In this scenario, the human resources analyst is attempting to email the records for new employees to an outside payroll company. The records for new employees may contain sensitive or confidential data, such as personal information, tax information, or bank account information. The DLP software may detect this data and block the email from being sent outside the company, as it may violate the company's data protection policy or regulations. The DLP software may also generate an error message to inform the analyst of the reason for the rejection.
質問 # 177
Which of the following BEST measures how much downtime an organization can tolerate during an unplanned outage?
- A. MTTR
- B. SLA
- C. RTO
- D. BIA
正解：C
解説：
Explanation
RTO (Recovery Time Objective) is a metric that measures how much downtime an organization can tolerate during an unplanned outage before it affects its business continuity and reputation. RTO is usually expressed in hours or minutes and is determined by the criticality of the business processes and the impact of the outage on the revenue, customers, and stakeholders. RTO helps to define the recovery strategy and the resources needed to restore the normal operations as quickly as possible. Verified References: [RTO vs RPO]
質問 # 178
A server administrator purchased a single license key to use for all the new servers that will be imaged this year. Which of the following MOST likely refers to the licensing type that will be used?
- A. Per concurrent user
- B. Per socket
- C. Open-source
- D. Volume
正解：D
解説：
This is the most likely licensing type that will be used because volume licensing allows a single license key to be used for multiple installations of a software product. Volume licensing is typically used by organizations that need to deploy software to a large number of devices or users. References: https://www.microsoft.com/en- us/licensing/licensing-programs/volume-licensing-programs
質問 # 179
A data center employee shows a driver's license to enter the facility Once the employee enters, the door immediately doses and locks, triggering a scale that then weighs the employee before granting access to another locked door. This is an example of.
- A. mantrap.
- B. a bollard
- C. RFID.
- D. geofencing
正解：A
解説：
Explanation
A mantrap is a security device that consists of a small space with two sets of interlocking doors, such that the first set of doors must close before the second one opens. A mantrap can be used to control access to a data center by verifying the identity and weight of the person entering. A bollard is a sturdy post that prevents vehicles from entering a restricted area. Geofencing is a technology that uses GPS or RFID to create a virtual boundary around a location and trigger an action when a device crosses it. RFID is a technology that uses radio waves to identify and track objects or people. References:
https://www.techopedia.com/definition/16293/mantrap
https://www.techopedia.com/definition/1437/bollard
https://www.techopedia.com/definition/23961/geofencing
https://www.techopedia.com/definition/506/radio-frequency-identification-rfid
質問 # 180
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 Temacs' on this server. Which of the following would BEST allow the user to find out which commands can be used?
- A. cat /etc/passwd
- B. userlist I grep userid
- C. sudo -1 -U userid
- D. visudo I grep userid
正解：C
解説：
This is the best command to find out which commands can be used by a user with sudo privileges because it lists the allowed and forbidden commands for a given user or role. The -l option stands for list, and the -U option specifies the user name. The output of this command will show what commands can be executed with sudo by that user on that server. Reference: https://www.sudo.ws/man/1.8.13/sudo.man.html
質問 # 181
A server administrator just installed a new physical server and needs to harden the OS. Which of the following best describes the OS hardening method?
- A. Apply security updates.
- B. Configure the boot order.
- C. Disable unneeded hardware.
- D. Set a BIOS password.
正解：A
解説：
Explanation
Applying security updates is one of the common operating system hardening methods that can help protect the OS from cyberattacks and vulnerabilities. Security updates are released by the OS developer to fix bugs, patch security holes, and improve performance. By installing the latest updates, the server administrator can ensure that the OS is up to date and secure12.
質問 # 182
A storage administrator is investigating an issue with a failed hard drive. A technician replaced the drive in the storage array; however, there is still an issue with the logical volume. Which of the following best describes the NEXT step that should be completed to restore the volume?
- A. Format the volume
- B. Rebuild the volume
- C. Replace the volume
- D. Initialize the volume
正解：B
解説：
The administrator should rebuild the volume to restore it after replacing the failed hard drive. A volume is a logical unit of storage that can span across multiple physical disks. A volume can be configured with different levels of RAID (Redundant Array of Independent Disks) to provide fault tolerance and performance enhancement. When a hard drive in a RAID volume fails, the data on that drive can be reconstructed from the remaining drives using parity or mirroring techniques. However, this process requires a new hard drive to replace the failed one and a rebuild operation to copy the data from the existing drives to the new one. Rebuilding a volume can take a long time depending on the size and speed of the drives and the RAID level.
質問 # 183
A systems administrator deployed a new web proxy server onto the network. The proxy server has two interfaces: the first is connected to an internal corporate firewall, and the second is connected to an internet-facing firewall. Many users at the company are reporting they are unable to access the Internet since the new proxy was introduced. Analyze the network diagram and the proxy server's host routing table to resolve the Internet connectivity issues.
INSTRUCTIONS
Perform the following steps:
1. Click on the proxy server to display its routing table.
2. Modify the appropriate route entries to resolve the Internet connectivity issue.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
正解：
解説：
質問 # 184
A server administrator is installing a 64-bit OS on a server hardware and receives the following error message: Processor architecture not supported. Which of the following architectures is causing this error?
- A. SPARC
- B. Alpha
- C. ARM
- D. x64
- E. x86
正解：E
質問 # 185
A technician is working on a Linux server. The customer has reported that files in the home directory are missing. The /etc/ f stab file has the following entry:
nfsserver:/home /home nfs defaults 0 0
However, a df -h /home command returns the following information:
/dev/sda2 10G 1G 9G 10% /home
Which of the following should the technician attempt FIRST to resolve the issue?
- A. umount nfsserver:/home
- B. rmdir nfsserver:/home/dev/sda2
- C. mkdir /home
- D. mount /home
正解：A
解説：
The /etc/fstab file contains the information about the file systems that are mounted automatically at boot time or on demand. The entry nfsserver:/home /home nfs defaults 0 0 indicates that the /home directory on the local server is mounted from the /home directory on a remote server called nfsserver using the NFS protocol. However, the df -h /home command shows that the /home directory is actually mounted from a local partition /dev/sda2, which may not contain the user's files. This means that the NFS mount failed or was overridden by another mount. To resolve the issue, the technician should attempt to unmount the local partition using umount nfsserver:/home, which will detach the /home directory from /dev/sda2. Then, the technician should try to mount the NFS share again using mount /home, which will attach the /home directory to nfsserver:/home according to the /etc/fstab entry12. Creating a new directory (A) or removing an existing one © would not help, as they would not affect the mount point. Mounting /home (D) without unmounting it first would not work, as it would result in an error that the mount point is busy3. Reference: 1 https://askubuntu.com/questions/374870/home-directory-not-being-created 2 https://www.techrepublic.com/article/how-to-properly-automount-a-drive-in-ubuntu-linux/ 3 https://serverfault.com/questions/587855/cannot-find-home-directory-on-linux-server
質問 # 186
Which of the following is the most effective way to mitigate risks associated with privacy-related data leaks when sharing with a third party?
- A. Non-disclosure and indemnity agreements
- B. Service- and operational-level agreements
- C. Third-party acceptable use policy
- D. Customer data encryption and masking
正解：D
解説：
Explanation
The most effective way to mitigate risks associated with privacy-related data leaks when sharing with a third party is customer data encryption and masking. Encryption is a process of transforming data into an unreadable format that can only be decrypted with a key or password. Masking is a process of hiding or replacing sensitive data with fake or meaningless data. By encrypting and masking customer data, the organization can protect the confidentiality and integrity of the data and prevent unauthorized access or disclosure by the third party.
References: CompTIA Server+ SK0-005 Certification Study Guide, Chapter 3, Lesson 3.3, Objective 3.3
質問 # 187
A server technician is placing a newly configured server into a corporate environment. The server will be used by members of the accounting department, who are currently assigned by the VLAN identified below:
Which of the following IP address configurations should the technician assign to the new server so the members of the accounting group can access the server?
- A. IP address: 172.16.25.90/24 Default gateway: 172.16.25.254
- B. IP address: 172.16.25.101/16 Default gateway: 172.16.25.254
- C. IP address: 172.16.26.101/24 Default gateway: 172.16.25.254
- D. IP address: 172.16.25.254/24 Default gateway: 172.16.25.1
正解：A
解説：
The IP address configuration that the technician should assign to the new server so the members of the accounting group can access the server is 172.16.25.90/24 for the IP address and 172.16.25.254 for the default gateway. This configuration matches the VLAN identified in the image, which has a network address of
172.16.25.0/24 and a subnet mask of 255.255.255.0. The IP address of the server must be within the same network range as the VLAN, which is from 172.16.25.1 to 172.16.25.254, excluding the network and broadcast addresses (172.16.25.0 and 172.16.25.255). The default gateway of the server must be the same as the VLAN, which is 172.16.25.254, to allow communication with other networks or devices outside the VLAN. References: [CompTIA Server+ Certification Exam Objectives], Domain 4.0: Networking, Objective
4.1: Given a scenario, configure network settings for servers.
質問 # 188
An administrator is tasked with building an environment consisting of four servers that can each serve the same website. Which of the following concepts is described?
- A. Direct access
- B. Network teaming
- C. Load balancing
- D. Overprovisioning
正解：C
解説：
Load balancing is a technique used to distribute workloads evenly across multiple servers, ensuring no single server is overwhelmed. This is especially important in environments where high availability and reliability are critical, such as when multiple servers are serving the same website. By doing so, load balancing improves the responsiveness and availability of applications or websites.
Load balancing refers to the process of distributing network or application traffic across multiple servers to ensure no single server becomes overwhelmed, thereby improving responsiveness and availability of applications or websites. In the scenario described, where four servers are set up to each serve the same website, the concept of load balancing is applied. This setup aims to distribute incoming requests evenly among the servers to maximize speed and capacity utilization while ensuring no one server is overburdened, which can lead to improved overall performance of the website. Options B, C, and D do not accurately describe the scenario of distributing traffic for the same website across multiple servers.
質問 # 189
Hosting data in different regional locations but not moving it for long periods of time describes:
- A. a cold site.
- B. on-site retention.
- C. off-site storage.
- D. data at rest.
正解：D
解説：
Data at rest refers to data that is stored in a persistent state on any device or media, such as hard drives, tapes, or cloud storage. Data at rest does not move for long periods of time unless it is accessed or modified by authorized users or applications. A cold site (A) is a backup location that has minimal or no equipment and resources to resume business operations in case of a disaster. On-site retention © is a policy of keeping backup data on premises for a certain period of time before transferring it to an off-site location. Off-site storage (D) is a method of storing backup data in a remote location that is physically or logically separated from the primary site. Reference: https://docs.microsoft.com/en-us/azure/security/fundamentals/encryption-atrest https://www.techopedia.com/definition/144/cold-site https://www.enterprisestorageforum.com/backup/onsite-offsite-backup.html https://www.techopedia.com/definition/24195/offsite-storage
質問 # 190
Which of me following should be placed at the top of a Bash script to ensure it can be executed?
- A. bash
- B. @eacho off
- C. #!
- D. !execute
正解：C
解説：
Explanation
#! is the symbol that should be placed at the top of a Bash script to ensure it can be executed. #! is also known as shebang or hashbang. It is a special notation that tells the operating system which interpreter to use to run the script. The shebang is followed by the path to the interpreter, such as /bin/bash for Bash, /bin/python for Python, or /bin/perl for Perl. For example, a Bash script that prints "Hello World" would start with:
#!/bin/bash echo "Hello World"
The shebang must be the first line of the script and must not have any spaces between the # and ! symbols.
bash is not a valid shebang by itself, as it does not specify the path to the interpreter. !execute is not a valid shebang at all, as it does not start with #. @echo off is a command that disables the echoing of commands in a batch file on Windows, but it has nothing to do with Bash scripts on Linux. References:
https://www.howtogeek.com/67469/the-beginners-guide-to-shell-scripting-the-basics/
https://www.howtogeek.com/435903/what-is-a-shebang-line/
質問 # 191
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. Issue the setenforce 0 command.
- B. Issue the yum -y update mysql command.
- C. Download the update manually and run a checksum utility to verify file integrity.
- D. Create a firewall rule to allow port 3306 through the firewall.
正解：A
解説：
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.
質問 # 192
An administrator is setting up a new server and has been asked to install an operating system that does not have a GUI because the server has limited resources. Which of the following installation options should the administrator use?
- A. Slipstreamed
- B. Bare metal
- C. Headless
- D. Virtualized
正解：C
解説：
A headless installation is an installation method that does not require a graphical user interface (GUI) or a monitor, keyboard, and mouse. It can be done remotely through a network connection or a command-line interface. A headless installation is suitable for a server that has limited resources and does not need a GUI.
References:
CompTIA Server+ Certification Exam Objectives1, page 14
Server Management: Server Hardware Installation and Management2, Module 2, Lesson 5
質問 # 193
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CompTIA SK0-005（CompTIA Server+認定）は、サーバーテクノロジーに特化したITプロフェッショナル向けの認定試験です。この認定試験は、サーバーハードウェア、ソフトウェア、ストレージ、セキュリティ、ネットワーキング、トラブルシューティングに関連する幅広いトピックをグローバルにカバーしています。この試験は、サーバー環境の管理とメンテナンスを担当するITプロフェッショナルのスキルと知識を検証することを目的としています。
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