CompTIA Server+ (SK0-005) practice questions
213 free questions with answers and explanations.
- 151.A system administrator is troubleshooting a Linux-based web server that has suddenly become unreachable from outside the local network, although it is still accessible via SSH from another server on the same subnet. Pinging the server's public IP address from an external network fails, but pinging its internal IP address from within the subnet succeeds. The server's firewall (iptables) configuration has not changed recently. Which of the following should the administrator investigate NEXT?Troubleshooting
- 152.A company is migrating its on-premises server infrastructure to a hybrid cloud environment. The server administrator needs to ensure that all server assets, both physical and virtual, are accurately tracked throughout their lifecycle, from procurement to decommissioning. Which IT management discipline is primarily concerned with this requirement?Server Administration
- 153.A server is configured with a redundant power supply unit (PSU) setup. The administrator receives an alert that one of the PSUs has failed. Upon inspection, the indicator light on PSU1 is amber, while PSU2's light is green. The server remains operational without any performance issues. What is the immediate impact of this failure?Troubleshooting
- 154.A technician is troubleshooting a server that is experiencing intermittent network connectivity. The server's network interface card (NIC) link lights are flickering rapidly, but the activity light is mostly dark, even during attempted data transfers. The switch port it's connected to shows similar behavior. Other servers on the same switch port group are functioning normally. Which of the following is the MOST likely cause?Troubleshooting
- 155.A company is planning a new data center and needs to implement robust physical security measures. Which of the following would provide the strongest deterrent against unauthorized physical access to the server racks, beyond standard locked doors?Security and Disaster Recovery
- 156.A system administrator is designing a disaster recovery (DR) plan for a critical web application. The business requires that the application be fully operational within four hours of a disaster, with a maximum data loss of one hour. Which type of DR site would be most appropriate?Security and Disaster Recovery
- 157.A server is experiencing frequent, unexpected reboots. The event logs show a 'Kernel Panic' error message immediately before each reboot, but no other specific error codes or device failures are consistently reported. The server's memory has been tested and passed, and the operating system has been reinstalled. Which of the following is the MOST likely remaining cause?Troubleshooting
- 158.A storage administrator wants to restrict which servers in a Fibre Channel SAN fabric can communicate with a specific set of storage ports by grouping their World Wide Port Names (WWPNs) together at the Fibre Channel switch. Which technique is being implemented?Server Hardware Installation and Management
- 159.A server administrator is configuring a new server that will host several critical applications. To minimize the attack surface and adhere to security best practices, the administrator should ensure that only essential services and ports are enabled on the server. This practice is known as:Server Administration
- 160.A server administrator is investigating a network issue where a newly deployed server can ping other devices on its local subnet but cannot reach resources on other subnets. The server is configured with a static IP address, subnet mask, and DNS servers. All other servers on the same subnet are communicating normally with external networks. Which of the following is the MOST likely cause of this issue?Troubleshooting
- 161.A server administrator is configuring a new storage area network (SAN) for a critical database cluster. To ensure that data written to the primary storage is immediately available on the secondary storage in a remote data center without any data loss in case of a primary site failure, which replication method is required?Security and Disaster Recovery
- 162.A server administrator is troubleshooting a Windows server that occasionally experiences application crashes and system freezes. The event logs frequently show 'Event ID 41, Kernel-Power' errors, indicating an unexpected shutdown or reboot, but no specific bugcheck code is consistently reported. The server is connected to a UPS, which reports stable power delivery. What is the MOST likely hardware component causing this issue?Troubleshooting
- 163.A technician is preparing to install a new operating system on a server that will boot from an NVMe drive larger than 2TB. Which firmware component must first be updated or configured correctly to support booting from a GPT-partitioned drive of this size?Server Hardware Installation and Management
- 164.A server administrator is evaluating different hypervisor types for a new virtualization project. The project requires maximum performance for virtual machines, direct access to hardware resources, and minimal overhead. Which type of hypervisor would best meet these requirements?Server Administration
- 165.A technician is setting up a new server chassis with multiple redundant fans. The server's IPMI interface reports that one of the fan modules is operating at a significantly lower RPM than the others, triggering a warning. What is the MOST appropriate immediate action the technician should take?Server Hardware Installation and Management
- 166.A server administrator discovers that a newly installed application on a Linux server is failing to start, reporting 'Permission denied' errors in its logs when trying to create a log file in `/var/log/myapp`. The application runs as a dedicated user `myappuser`. What command should the administrator use to MOST efficiently resolve this specific issue?Troubleshooting
- 167.A server contains two redundant hot-swappable power supplies. Which of the following cabling configurations BEST protects the server against a single PDU failure?Server Hardware Installation and Management
- 168.A technician is troubleshooting a server that randomly freezes and becomes unresponsive. The server is configured with two CPUs and ample RAM. After checking system logs, the technician finds recurring entries related to 'Cache L2 Error' associated with one of the CPU sockets. All other system components appear to be functioning normally. What is the MOST likely cause of the server's instability?Troubleshooting
- 169.A server administrator discovers a potential zero-day vulnerability in a critical operating system component. To mitigate the risk before an official patch is released, which hardening technique would be most effective in preventing exploitation?Security and Disaster Recovery
- 170.A server administrator has installed a new application on a Linux server. After installation, the application fails to start, and the system logs show errors related to 'insufficient permissions' when trying to access certain directories. The application is configured to run as a non-root user. Which of the following commands would MOST effectively resolve this issue?Troubleshooting
- 171.A small office is experiencing frequent power fluctuations and occasional short outages that last for a few minutes. They have a critical file server that needs to remain operational during these events to prevent data corruption. Which type of power protection device would BEST address these requirements?Server Hardware Installation and Management
- 172.A server administrator is implementing a security policy that requires all communication between servers in a private network segment to be encrypted and authenticated to prevent man-in-the-middle attacks and ensure data integrity. Which protocol suite is specifically designed to provide these security services at the network layer?Security and Disaster Recovery
- 173.A company is planning to implement a new server infrastructure and wants to minimize physical server count while maximizing resource utilization and simplifying management. They are considering a solution that allows multiple independent operating systems to run concurrently on a single physical machine. Which technology best fits this description?Server Administration
- 174.A server administrator is troubleshooting a Linux server that is experiencing intermittent performance issues. Users report slow response times, and the server occasionally becomes unresponsive. The administrator suspects high CPU or memory utilization. Which command should the administrator use to get a real-time, interactive view of running processes and resource consumption?Server Administration
- 175.A server administrator is troubleshooting intermittent network connectivity issues on a server connected via a 10GbE SFP+ module. The server periodically drops its network link, and the link light on the switch port flashes erratically. The administrator suspects a cabling issue. Which of the following cables is MOST likely being used and causing this problem?Server Hardware Installation and Management
- 176.A server administrator is trying to configure a new application that uses a specific port, 8080. When attempting to start the application, it fails with an error indicating 'Address already in use' or 'Port in use'. The administrator has confirmed no other instances of the *same* application are running. What is the MOST likely cause?Troubleshooting
- 177.A server administrator is setting up a new Windows Server for a critical line-of-business application. The application requires a specific version of the .NET Framework and several Windows features that are not installed by default. Which of the following is the most efficient method to ensure these prerequisites are met during the initial server setup?Server Administration
- 178.A security engineer is performing a hardening review of a new server before it is deployed to production. The server will host a critical internal application and should only allow specific administrative access and the application's required network services. Which of the following is the MOST effective strategy to reduce the server's attack surface?Security and Disaster Recovery
- 179.A company is upgrading its data center and needs to dispose of several older tape drives and backup tapes that contain highly sensitive intellectual property. The security policy mandates that data on these media must be irrevocably destroyed to prevent any possibility of recovery. Which of the following methods would best meet this requirement for magnetic tapes?Security and Disaster Recovery
- 180.A data center technician is installing a new rack of servers. They notice that some of the existing rack units have empty spaces between equipment, while others have gaps above and below installed servers. To optimize airflow and prevent hot spots, which of the following should the technician install in these empty spaces?Server Hardware Installation and Management
- 181.A server administrator needs to ensure that a new application server, hosting a payment gateway, can only communicate with a specific database server on port 3306 and a third-party API endpoint on port 443. All other outbound connections from the application server should be blocked. Which of the following networking components is BEST suited to enforce these granular communication restrictions at the server level?Server Administration
- 182.A server administrator is deploying a new application that uses a RESTful API and needs to be accessible by external clients over the internet. The application server is located in a private network segment. To allow inbound connections to the API while maintaining network security, which network device and configuration is primarily required?Server Administration
- 183.A server administrator is implementing a new security policy that dictates all server configurations must be reviewed and approved before deployment to production. This policy aims to minimize potential vulnerabilities introduced by misconfigurations. Which of the following concepts is this policy primarily addressing?Security and Disaster Recovery
- 184.A server administrator receives alerts that a critical application server is experiencing 'Input/Output (I/O) error' messages in its logs, and users report application slowness. Upon inspection, the administrator notes that the server's RAID 5 array shows one disk as 'failed' and another as 'predicting failure'. What is the MOST immediate action the administrator should take?Troubleshooting
- 185.A technician is installing a new Solid State Drive (SSD) into a server. After physically installing the drive and powering on the server, the SSD is not visible in the operating system's disk management utility or the server's BIOS/UEFI. What is the MOST likely initial step the technician should take to troubleshoot this issue?Troubleshooting
- 186.A security engineer is hardening a new Linux server that will host a public-facing web application. To reduce the attack surface, which of the following actions should be prioritized?Security and Disaster Recovery
- 187.A company is implementing a new identity and access management (IAM) solution. The security architect proposes using a centralized directory service that stores user credentials and allows for single sign-on (SSO) across various applications. This service will use a hierarchical structure to store information about users, groups, and network devices. Which protocol is most commonly associated with such a directory service?Security and Disaster Recovery
- 188.A web server running Apache is suddenly returning '503 Service Unavailable' errors to all clients. The server itself is pingable, and SSH access is working. Upon checking the Apache service status, it shows as 'running'. However, inspecting the Apache error logs reveals a recurring message: 'AH00094: Command line: '/usr/sbin/apache2 -D FOREGROUND' failed to start due to port 80 already in use.' Which of the following is the MOST likely cause?Troubleshooting
- 189.A server administrator is deploying a new web application that will handle sensitive customer data. The application requires robust security measures to protect data both in transit and at rest. Which of the following security protocols and practices should be prioritized for this application?Server Administration
- 190.A server administrator is responsible for maintaining several Windows Server instances. To ensure applications and the OS function correctly, the administrator needs to identify and resolve issues related to system events, security audits, and application errors. Which built-in Windows Server tool is essential for reviewing these logs?Server Administration
- 191.A server technician is deploying a new server with multiple storage drives. The client requires a RAID configuration that provides fault tolerance against two simultaneous drive failures and offers high read performance. Write performance is less critical but still important. Which RAID level should the technician implement?Server Hardware Installation and Management
- 192.A server administrator needs to audit the installed software and hardware components across all servers in the data center to ensure compliance with licensing agreements and asset tracking policies. Which of the following tools or practices is most appropriate for this task?Server Administration
- 193.A server administrator is troubleshooting a Windows Server that is unable to join a new Active Directory domain. The server receives the error 'The specified domain either does not exist or cannot be contacted.' The administrator has verified that the domain controller is online and reachable via `ping` by IP address. Which of the following is the MOST likely cause of this issue?Troubleshooting
- 194.A server administrator is unable to access files on a recently created network share from client machines, even though the share is configured correctly on the Windows server and local access works. When attempting to access the share, clients receive an 'Access Denied' error. The administrator has verified that the NTFS permissions on the folder are correctly set for the users. What is the MOST likely missing configuration?Troubleshooting
- 195.A company is implementing a new security policy that requires all user accounts to be reviewed and their access adjusted based on their current job roles quarterly. This practice aligns best with which security principle?Security and Disaster Recovery
- 196.A server administrator is configuring a new web server to host several secure websites. To ensure that client browsers can establish encrypted connections, the administrator must install and configure server certificates. What is the standard TCP port used by web servers for secure HTTP (HTTPS) communication?Server Administration
- 197.A server administrator is deploying a new virtualization host that requires high memory capacity and stability. The server motherboard supports DDR4 memory modules. Which of the following memory types would be BEST suited for this scenario?Server Hardware Installation and Management
- 198.A server rack contains several high-density servers. The data center manager observes that the ambient temperature at the rear of the rack is significantly higher than at the front, leading to concerns about server longevity and performance. Which of the following cooling strategies would be most effective in mitigating this issue?Server Hardware Installation and Management
- 199.A server has eight 4TB SAS drives. The administrator wants to configure a RAID array that provides maximum usable storage capacity while still offering fault tolerance against a single drive failure. Which RAID level should the administrator choose?Server Hardware Installation and Management
- 200.A server rack is experiencing issues with cable clutter, making maintenance and troubleshooting difficult. The network cables are haphazardly run, blocking airflow and making it hard to identify specific connections. Which cabling best practice should the technician implement to resolve these issues?Server Hardware Installation and Management