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CompTIA Server+ Certification Exam, also known as SK0-005, is a vendor-neutral certification that validates the skills and knowledge required of server administrators. SK0-005 exam is designed to help IT professionals demonstrate their expertise in managing, maintaining, troubleshooting, and securing server hardware and software. CompTIA Server+ is an internationally recognized certification that is highly valued by employers across various industries.
NEW QUESTION # 163
An administrator is configuring a new server for use as a database server. It will have two mirrored drives to hold the operating system, and there will be three drive bays remaining for storage Which of the following RAID levels will yield the BEST combination of available space and redundancy?
- A. RAIDS
- B. RAID 10
- C. RAID 1
- D. RAID
Answer: B
Explanation:
Explanation
RAID 10 is the RAID level that will yield the best combination of available space and redundancy when configuring a new server for use as a database server with two mirrored drives for the operating system and three drive bays remaining for storage. RAID 10, also known as RAID 1+0, is a RAID configuration that combines disk mirroring and disk striping to protect data. It requires a minimum of four disks and stripes data across mirrored pairs. As long as one disk in each mirrored pair is functional, data can be retrieved. RAID 10 provides high performance, fault tolerance, and fast recovery, but it reduces storage capacity by half. RAID 0 is a RAID configuration that splits data across two or more drives without parity or redundancy. It improves performance but offers no fault tolerance. If one drive fails in RAID 0, all data is lost and the system cannot boot. RAID 1 is a RAID configuration that duplicates data across two or more drives. It provides fault tolerance and improves read performance, but reduces storage capacity by half. If one drive fails in RAID 1, the other drive can continue to operate without data loss or system downtime. RAID 5 is a RAID configuration that stripes data across three or more drives with parity information. It provides fault tolerance and improves performance, but reduces storage capacity by one drive's worth of space. RAID 5 can tolerate one drive failure without data loss, but not two or more. References:
https://www.howtogeek.com/199068/how-to-upgrade-your-existing-hard-drive-in-under-an-hour/
https://www.howtogeek.com/202794/what-is-the-difference-between-127.0.0.1-and-0.0.0.0/
NEW QUESTION # 164
A VLAN needs to be configured within a virtual environment for a new VM. Which of the following will ensure the VM receives a correct IP address?
- A. A virtual switch
- B. A host NIC
- C. A vNlC
- D. A VPN
- E. A virtual router
Answer: A
Explanation:
Explanation
The correct answer is D. A virtual switch.
A virtual switch is a software-based network device that connects the virtual machines (VMs) in a virtual environment and allows them to communicate with each other and with the physical network. A virtual switch can also create and manage virtual LANs (VLANs), which are logical segments of a network that separate the traffic of different VMs or groups of VMs. A VLAN needs a DHCP server to assign IP addresses to the VMs that belong to it. A virtual switch can act as a DHCP relay agent and forward the DHCP requests from the VMs to the DHCP server on the physical network.This way, the VMs can receive correct IP addresses for their VLANs123 A virtual router is a software-based network device that routes packets between different networks or subnets.
A virtual router can also create and manage VLANs, but it is not necessary for a VM to receive a correct IP address.A virtual router can be used to provide additional security, redundancy, or load balancing for the VMs12 A host NIC is a physical network interface card that connects the host machine to the physical network. A host NIC can also support VLAN tagging, which allows the host machine to communicate with different VLANs on the network. However, a host NIC alone cannot ensure that a VM receives a correct IP address for its VLAN.The host NIC needs to be connected to a virtual switch that can relay the DHCP requests from the VMs to the DHCP server12 A VPN is a virtual private network that creates a secure tunnel between two or more devices over the internet.
A VPN can be used to encrypt and protect the data traffic of the VMs, but it is not related to the configuration of VLANs or IP addresses.A VPN does not affect how a VM receives a correct IP address for its VLAN14 A vNIC is a virtual network interface card that connects a VM to a virtual switch or a virtual router. A vNIC can also support VLAN tagging, which allows the VM to communicate with different VLANs on the network.However, a vNIC alone cannot ensure that a VM receives a correct IP address for its VLAN.The vNIC needs to be connected to a virtual switch or a virtual router that can relay the DHCP requests from the VMs to the DHCP server12
NEW QUESTION # 165
Which of the following backup types copies changed data from a server and then combines the backups on the backup target?
- A. Snapshot
- B. Differential
- C. Incremental
- D. Synthetic full
Answer: D
Explanation:
A synthetic full backup is a type of backup that copies changed data from a server and then combines the backups on the backup target. This way, the backup target always has a full backup of the server, without requiring a full backup to be performed over the network. A synthetic full backup reduces the network bandwidth and time required for backups, while also simplifying the restoration process1
NEW QUESTION # 166
Network connectivity to a server was lost when it was pulled from the rack during maintenance.
Which of the following should the server administrator use to prevent this situation in the future?
- A. Rail kits
- B. A wireless connection
- C. Cable management
- D. A power distribution unit
Answer: C
NEW QUESTION # 167
An administrator has been asked to disable CPU hyperthreading on a server to satisfy a licensing issue. Which of the following best describes how the administrator will likely perform this action?
- A. Use the BIOS/UEFI setup.
- B. Use a RDP/VNC session.
- C. Use a PowerSheII/Bash script.
- D. Modify the startup configuration.
Answer: A
Explanation:
The BIOS (Basic Input/Output System) or UEFI (Unified Extensible Firmware Interface) setup is a program that allows users to configure the hardware settings of a computer, such as the CPU, memory, disk, and boot options. The BIOS/UEFI setup can be accessed by pressing a specific key (such as F2, F10, or Delete) during the boot process, before the operating system loads12.
One of the settings that can be changed in the BIOS/UEFI setup is the CPU hyperthreading option. Hyperthreading is a technology that enables a single physical CPU core to execute two threads or tasks simultaneously, improving the performance and efficiency of multi-threaded applications. However, some software licenses may limit the number of CPU cores or threads that can be used, and therefore require disabling hyperthreading on the server34.
To disable hyperthreading on a server, the administrator will likely need to enter the BIOS/UEFI setup and navigate to the processor options menu. There, the administrator will find a setting for Intel ® Hyperthreading Technology or Hyperthreading Function, which can be enabled or disabled. The administrator will need to disable this setting and save the changes. This will turn off hyperthreading on the server and reduce the number of logical CPUs to match the number of physical cores5.
NEW QUESTION # 168
Which of the following license types most commonly describes a product that incurs a yearly cost regardless of how much it is used?
- A. Open-source
- B. Per concurrent user
- C. Subscription
- D. Per instance
- E. Physical
Answer: C
Explanation:
Explanation
A subscription license is a type of license that grants the user the right to use a product or service for a fixed period of time, usually a year. The user pays a recurring fee, regardless of how much they use the product or service. Subscription licenses are common for cloud-based software and services, such as Microsoft 3651 or DocuSign2.
References = 1: Compare All Microsoft 365 Plans (Formerly Office 365) - Microsoft Store(https://www.microsoft.com/en-us/microsoft-365/buy/compare-all-microsoft-365-products) 2: DocuSign Pricing | eSignature Plans for Personal & Business(https://ecom.docusign.com/plans-and-pricing/esignature)
NEW QUESTION # 169
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. Snapshot
- B. Differential
- C. Incremental
- D. Full
Answer: C
Explanation:
An incremental backup only backs up files that have changed since the last backup, whether it was a full or an incremental backup. Therefore, an incremental backup file may require another file to restore data, depending on the sequence of backups. A full backup backs up all files and does not require any other file to restore dat a. A snapshot is a point-in-time copy of data that does not depend on other files. A differential backup backs up files that have changed since the last full backup and does not require any other file to restore data.
NEW QUESTION # 170
Which of the following would a systems administrator implement to ensure all web traffic is secure?
- A. SSH
- B. PGP
- C. SSL
- D. SMTP
Answer: C
Explanation:
Secure Sockets Layer (SSL): SSL and its successor Transport Layer Security (TLS) enable client and server computers to establish a secure connection session and manage encryption and decryption activities.
Reference: https://paginas.fe.up.pt/~als/mis10e/ch8/chpt8-4bullettext.htm
NEW QUESTION # 171
Which of the following BEST describes overprovisioning in a virtual server environment?
- A. Ensuring there are enough physical resources to sustain the complete virtual environment in the event of a host failure
- B. Installing more physical hardware than is necessary to run the virtual environment to allow for future expansion
- C. Committing more virtual resources to virtual machines than there are physical resources present
- D. Allowing a virtual machine to utilize more resources than are allocated to it based on the server load
Answer: C
Explanation:
Explanation
This is the best definition of overprovisioning in a virtual server environment because it means allocating more CPU, memory, disk, or network resources to the virtual machines than what is actually available on the physical host. This can lead to performance issues and resource contention. References:
https://www.hpe.com/us/en/insights/articles/10-virtualization-mistakes-everyone-makes-1808.html
NEW QUESTION # 172
Which of the following licenses would MOST likely include vendor assistance?
- A. Maintenance and support
- B. Open-source
- C. Version compatibility
- D. Subscription
Answer: A
Explanation:
Explanation
Maintenance and support is a type of license that would most likely include vendor assistance. Maintenance and support is a contract that defines the level and scope of service and assistance that a vendor provides to a customer for using their software product. Maintenance and support may include technical support, bug fixes, patches, updates, upgrades, documentation, training, and other benefits. Maintenance and support licenses usually have an annual fee based on the number of users or devices covered by the contract. Open-source is a type of license that allows free access to the source code and modification and distribution of the software product, but does not guarantee vendor assistance. Version compatibility is not a type of license, but a feature that ensures software products can work with different versions of operating systems or other software products. Subscription is a type of license that allows access to software products for a limited period of time based on recurring payments, but does not necessarily include vendor assistance. References:
https://www.techopedia.com/definition/1440/software-licensing
https://www.techopedia.com/definition/1032/business-impact-analysis-bia
NEW QUESTION # 173
An administrator is researching the upcoming licensing software requirements for an application that usually requires very little technical support. Which of the following licensing models would be the LOWEST cost solution?
- A. Per CPU socket
- B. Per CPU core
- C. Open-source
- D. Enterprise agreement
Answer: C
Explanation:
Open-source software is software that is freely available and can be modified and distributed by anyone. It usually requires very little technical support and has no licensing fees. Therefore, it would be the lowest cost solution for an application that does not need much support. Reference: https://www.comptia.org/training/resources/exam-objectives/comptia-server-sk0-005-exam-objectives (Objective 2.3)
NEW QUESTION # 174
Which of the following server types can be configured and joined to the existing network as a read-only server for user account verification to external websites?
- A. Directory server
- B. Web server
- C. Syslog server
- D. Messaging server
Answer: A
NEW QUESTION # 175
A server administrator receives a report that Ann, a new user, is unable to save a file to her home directory on a server. The administrator checks Ann's home directory permissions and discovers the following:
dr-xr-xr-- /home/Ann
Which of the following commands should the administrator use to resolve the issue without granting unnecessary permissions?
- A. chmod 777 /home/Ann
- B. chmod 666 /home/Ann
- C. chmod 711 /home/Ann
- D. chmod 754 /home/Ann
Answer: D
Explanation:
Reference:
https://linuxize.com/post/what-does-chmod-777-mean/
NEW QUESTION # 176
An administrator is installing a new file server that has four drive bays available. Which of the following RAID types would provide the MOST storage as well as disk redundancy?
- A. RAID 10
- B. RAIDO
- C. RAID 1
- D. RAID 5
Answer: D
Explanation:
Explanation
RAID 5 is a RAID level that 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. RAID 5 provides the most storage as well as disk redundancy out of the four RAID levels given, since it only uses one disk for parity and the rest for data. For example, if four 200GB drives are used in a RAID 5 array, the total storage capacity would be 600GB (200GB x 3), while in RAID 0 it would be 800GB (200GB x 4), in RAID 1 it would be 200GB (200GB x 1), and in RAID 10 it would be 400GB (200GB x
2).References:https://en.wikipedia.org/wiki/Standard_RAID_levels#RAID_5
NEW QUESTION # 177
An administrator is troubleshooting a failure in the data center in which a server shut down/turned off when utility power was lost The server had redundant power supplies. Which of the following is the MOST likely cause of this failure?
- A. Both power supplies were connected to the same power feed
- B. Redundant power supplies require 220V power
- C. The UPS batteries were overcharged.
- D. The power supplies were not cross-connected
Answer: A
Explanation:
Explanation
The most likely cause of this failure is that both power supplies were connected to the same power feed, which means that they both lost power when utility power was lost. To prevent this from happening, redundant power supplies should be connected to different power feeds, preferably from different sources, such as a UPS or a generator. Verified References: [Redundant Power Supply Best Practices]
NEW QUESTION # 178
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. Bollards
- B. Data center camouflage
- C. Video surveillance
- D. An access control vestibule
Answer: D
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. Reference: CompTIA Server+ Certification Exam Objectives, Domain 5.0: Security, Objective 5.1: Given a scenario, apply physical security methods to a server.
NEW QUESTION # 179
A server administrator is swapping out the GPU card inside a server. Which of the following actions should the administrator take FIRST?
- A. Shut down the server.
- B. Disconnect the power from the rack.
- C. Ensure the GPU meets HCL guidelines.
- D. Inspect the GPU that is being installed.
Answer: A
Explanation:
Explanation
The first action that the administrator should take before swapping out the GPU card inside a server is to shut down the server. This is to ensure that the server is not running any processes that might be using the GPU card, and to prevent any damage to the hardware or data loss due to sudden power loss. Shutting down the server also reduces the risk of electrostatic discharge (ESD) that might harm the components. Reference:
https://pcgearhead.com/installing-a-new-gpu/
NEW QUESTION # 180
The Chief Information Officer (CIO) of a datacenter is concerned that transmissions from the building can be detected from the outside. Which of the following would resolve this concern? (Choose two.)
- A. Proximity readers
- B. Reflective glass
- C. Bollards
- D. RFID
- E. Signal blocking
- F. Camouflage
Answer: A,D
Explanation:
RFID is an acronym for "radio-frequency identification" and refers to a technology whereby digital data encoded in RFID tags or smart labels (defined below) are captured by a reader via radio waves.
Proximity readers work by constantly emitting a short range radio frequency (RF) field. When a proximity card comes within range of this field, an integrated chip within the card is powered up and the chip transmits a card number back to the reader. Not all proximity cards are born equal though, and it is important that the differences are weighed up when making a decision about which technology to adopt.
Reference:
https://www.ict.co/Choosing-Card-Technology
NEW QUESTION # 181
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