View Full CompTIA Server+ SK0-005 Exam Dumps and Practice Test Dumps

 

Question 41

Which processor feature allows a physical CPU core to execute multiple instruction threads concurrently?

1. Simultaneous multithreading
2. Thermal throttling
3. Dynamic voltage scaling
4. Hardware virtualization

Correct Answer: 1

Explanation:

Simultaneous multithreading allows a single physical processor core to handle multiple instruction threads concurrently. The technology can improve processor utilization when workloads contain threads that can make productive use of otherwise unused execution resources. It does not create additional physical cores, so performance gains depend on the workload and processor architecture. Thermal throttling reduces processor speed when temperatures become excessive, while dynamic voltage scaling adjusts electrical characteristics to balance performance and power consumption. Hardware virtualization provides processor capabilities that assist virtual machine operation. Server administrators should understand the difference between physical cores, logical processors, and processor threads when planning workload capacity.

Question 42

Which processor characteristic indicates the maximum number of instructions or operations a CPU can potentially process during a given clock cycle?

1. Socket count
2. Cache hierarchy
3. Instruction throughput
4. Bus width

Correct Answer: 3

Explanation:

Instruction throughput describes how much useful processing work a processor can potentially complete over a given period. It depends on more than clock frequency because modern processors can execute multiple instructions simultaneously through mechanisms such as multiple execution units, pipelining, and out-of-order execution. Socket count identifies the number of processor packages supported by a platform. Cache hierarchy describes the arrangement of processor caches, while bus width refers to the amount of data that can be transferred across a particular interface in one operation. When evaluating server performance, administrators should consider workload characteristics rather than relying on processor clock speed alone.

Question 43

A server requires memory modules with additional electrical buffering to support a large memory configuration. Which module type is appropriate?

1. Unbuffered DIMM
2. Registered DIMM
3. SO-DIMM
4. SDRAM module

Correct Answer: 2

Explanation:

Registered DIMMs contain registers between the memory controller and the DRAM chips. These registers help reduce the electrical load presented to the memory controller and can support larger memory configurations in server platforms. Registered memory is common in enterprise systems where substantial memory capacity is required. Unbuffered DIMMs connect more directly to the memory controller and are commonly found in systems with less demanding memory configurations. SO-DIMMs are compact modules frequently used in laptops and other small systems. SDRAM describes a broader memory technology family rather than specifically identifying the buffering characteristic required in this scenario.

Question 44

Which storage device uses spinning magnetic platters and mechanical read/write heads?

1. NVMe SSD
2. USB flash drive
3. Magnetic hard disk
4. Optical media

Correct Answer: 3

Explanation:

A magnetic hard disk uses rotating platters coated with magnetic material and mechanical read/write heads to store and retrieve data. Because it contains moving mechanical components, its access characteristics and physical behavior differ from solid-state storage. NVMe SSDs use flash memory and communicate through the NVMe protocol over PCIe, while USB flash drives also use solid-state flash storage. Optical media relies on laser-based reading and writing technology. Hard disks remain useful for many server workloads where high capacity and cost efficiency are important, although administrators must account for mechanical wear, rotational latency, vibration, and drive failure risks.

Question 45

Which storage technology communicates through PCIe and is designed specifically for low-latency access to solid-state storage?

1. NVMe
2. SATA
3. Fibre Channel
4. PATA

Correct Answer: 1

Explanation:

Non-Volatile Memory Express (NVMe) is a storage protocol designed for modern nonvolatile memory devices, particularly solid-state drives connected through PCI Express. It was developed to reduce limitations associated with older storage protocols and can provide high throughput and low latency. SATA is a serial storage interface that is widely used with traditional hard disks and SATA SSDs. Fibre Channel is commonly used in dedicated storage-area-network environments, while PATA is an older parallel storage interface. When deploying NVMe storage in servers, administrators should verify physical form factor, PCIe lane availability, firmware compatibility, cooling requirements, and platform support.

Question 46

A server uses a storage controller with its own processor and cache to manage RAID calculations independently. What type of controller is this?

1. Software RAID
2. Host bus adapter
3. Hardware RAID controller
4. Disk enclosure expander

Correct Answer: 3

Explanation:

A hardware RAID controller contains dedicated processing resources and typically includes cache memory for handling RAID operations independently of the server’s main CPU. This can reduce host processor involvement and provide features such as parity calculation, array management, caching, and fault monitoring. Software RAID relies primarily on operating-system resources to manage the array. A host bus adapter primarily provides connectivity between the server and storage devices without necessarily performing RAID functions. A disk enclosure expander increases connectivity to supported storage devices but is not itself a RAID processor. Administrators should evaluate controller cache protection and compatibility when designing enterprise storage.

Question 47

Which server component provides a physical connection point between multiple hot-plug drives and the storage controller?

1. Drive sled
2. Storage backplane
3. DIMM socket
4. Expansion riser

Correct Answer: 2

Explanation:

A storage backplane provides electrical connectivity between installed storage devices and the server’s storage controller or host interface. In many enterprise servers, hot-plug drives are inserted into drive bays that connect through the backplane, allowing drives to be managed without individually connecting cables to every device. A drive sled holds a storage device mechanically but is not necessarily responsible for the complete electrical interconnection. A DIMM socket accepts memory modules, while an expansion riser provides mounting and connectivity for expansion cards. Backplane design is important when determining supported drive types, interfaces, hot-swap capabilities, and storage configurations.

Question 48

Which server enclosure is designed to house multiple compact server modules while sharing power and cooling infrastructure?

1. Tower cabinet
2. Rack shelf
3. Blade chassis
4. Desktop enclosure

Correct Answer: 3

Explanation:

A blade chassis houses multiple compact blade servers and commonly provides shared infrastructure such as power supplies, cooling fans, management modules, and networking components. Individual blade modules can therefore occupy less physical space than equivalent standalone systems. This design can improve density and simplify certain aspects of centralized management, although the chassis itself represents a shared dependency that must be considered when evaluating availability. Tower cabinets are generally designed for standalone systems, while rack shelves and desktop enclosures do not provide the specialized shared infrastructure associated with blade architectures. Administrators should evaluate chassis capacity, power redundancy, cooling, and expansion options.

Question 49

Which rack measurement represents the vertical height occupied by a server or other rack-mounted device?

1. Rack unit
2. Cable radius
3. Mounting depth
4. Panel width

Correct Answer: 1

Explanation:

A rack unit, abbreviated U, is the standard measurement used to describe vertical space in a server rack. One rack unit represents a standardized height, allowing equipment manufacturers to design servers and networking devices that fit into common rack systems. Mounting depth describes how far equipment extends from the front toward the rear of the rack, while panel width describes horizontal dimensions. Cable radius concerns cable bending requirements rather than equipment height. Rack-unit measurements are particularly important when calculating how much equipment can be installed in a cabinet and determining whether sufficient space remains for airflow, cable management, and future expansion.

Question 50

Which electrical measurement describes the rate at which a server consumes or delivers energy?

1. Resistance
2. Current
3. Power
4. Frequency

Correct Answer: 3

Explanation:

Electrical power is the rate at which electrical energy is consumed or delivered and is measured in watts. Server power requirements are important when selecting power supplies, rack power distribution equipment, UPS capacity, and data-center cooling resources. Current, measured in amperes, describes the flow of electric charge. Resistance, measured in ohms, represents opposition to electrical current. Frequency, measured in hertz, describes how often an alternating electrical waveform cycles. Understanding these measurements helps administrators evaluate whether a server’s electrical infrastructure can safely and reliably support its expected load, particularly when deploying multiple high-density systems within the same rack.

Question 51

Which power configuration provides redundancy by connecting a server’s separate power supplies to different electrical sources?

1. Independent PSU feeds
2. Single-circuit operation
3. Shared extension outlet
4. Unmanaged power strip

Correct Answer: 1

Explanation:

Independent PSU feeds improve server power resilience by connecting redundant power supplies to separate electrical sources. If one circuit, power distribution unit, or upstream source fails, the server may continue operating through the remaining supply. The effectiveness of this design depends on genuine separation throughout the electrical path; simply connecting two power supplies to outlets that ultimately share the same failure point does not provide meaningful source redundancy. Single-circuit operation and shared extension arrangements create greater dependency on one source. Proper power planning should consider PSU capacity, circuit limits, PDU redundancy, UPS architecture, and facility-level electrical design.

Question 52

Which environmental condition can cause condensation and damage when server equipment is moved rapidly from a cold location into a warm humid room?

1. Static buildup
2. Thermal expansion
3. Moisture condensation
4. Electromagnetic interference

Correct Answer: 3

Explanation:

Moisture condensation can occur when cold equipment is exposed suddenly to warmer, humid air. Water may form on internal or external surfaces when temperatures cross the relevant dew point. Moisture inside electronic equipment can cause corrosion, short circuits, and other hardware problems. Thermal expansion refers to physical changes caused by temperature variations but does not specifically describe water formation. Static buildup concerns electrostatic discharge, while electromagnetic interference involves unwanted electrical or radio-frequency disturbance. Servers should be allowed to acclimate appropriately when environmental conditions change significantly, especially during transportation or relocation between facilities with different temperatures and humidity levels.

Question 53

Which environmental factor should be monitored to ensure a server room remains within acceptable operating conditions?

1. Ambient humidity
2. Keyboard brightness
3. Display resolution
4. Mouse sensitivity

Correct Answer: 1

Explanation:

Ambient humidity is an important environmental factor in server rooms. Excessive humidity can contribute to condensation and corrosion, while very low humidity can increase the likelihood of electrostatic discharge. Temperature and airflow are also critical environmental measurements because servers generate substantial heat during operation. Keyboard brightness, display resolution, and mouse sensitivity do not affect the environmental conditions experienced by server hardware. Data-center monitoring systems may therefore track temperature, humidity, power, airflow, and other facility conditions. Maintaining appropriate environmental conditions improves hardware reliability and helps prevent failures caused by heat, moisture, dust, or electrostatic events.

Question 54

A server’s motherboard has a failed component, but the administrator wants to preserve the existing operating-system installation. Which repair approach is most appropriate?

1. Replace the system board
2. Reformat every storage volume
3. Delete the boot configuration
4. Reinstall unrelated applications

Correct Answer: 1

Explanation:

Replacing the failed system board can restore hardware functionality while preserving the existing storage and operating-system installation, assuming the replacement board is compatible and the operating system supports the changed hardware. Administrators should verify processor compatibility, memory support, storage controller behavior, firmware settings, activation requirements, and device drivers after replacement. Reformatting storage would unnecessarily destroy existing information, while deleting boot configuration data would create an additional recovery problem. Reinstalling unrelated applications does not address the underlying hardware failure. Hardware replacement should be followed by validation of firmware settings, operating-system startup, drivers, network connectivity, storage access, and application functionality.

Question 55

Which maintenance approach replaces a component before its expected failure based on observed health indicators?

1. Reactive servicing
2. Predictive maintenance
3. Emergency restoration
4. Unscheduled replacement

Correct Answer: 2

Explanation:

Predictive maintenance uses monitoring information and health indicators to identify components that may be approaching failure so they can be serviced proactively. For example, storage systems may provide predictive failure warnings based on drive health information, allowing administrators to replace a drive before complete failure occurs. Reactive servicing generally occurs after a failure has already happened. Emergency restoration focuses on recovering service following an incident, while unscheduled replacement describes timing rather than a specific maintenance strategy. Predictive maintenance can reduce unexpected downtime when reliable monitoring data is available, although organizations must balance replacement costs against the probability and impact of potential failure.

Question 56

Which documentation should describe the steps required to restore a server after a major service outage?

1. Recovery procedure
2. Asset purchase order
3. Cable inventory
4. Software license list

Correct Answer: 1

Explanation:

A recovery procedure documents the actions required to restore a server or service following a major outage. It may include dependencies, recovery priorities, required credentials or access methods, restoration commands, validation steps, and escalation information. Clear recovery documentation can reduce recovery time and limit mistakes during stressful incidents. An asset purchase order records procurement information, a cable inventory tracks physical connectivity resources, and a software license list documents licensing information. Recovery procedures should be maintained as systems change and should ideally be tested periodically so that administrators can verify the documented steps remain accurate and practical.

Question 57

Which document identifies dependencies and technical steps for returning critical infrastructure to operation after a disaster?

1. Change request
2. Disaster recovery plan
3. Hardware invoice
4. Network diagram

Correct Answer: 2

Explanation:

A disaster recovery plan defines how an organization will restore critical technology services after a major disruptive event. It can include recovery priorities, dependencies, responsible personnel, communication procedures, alternate facilities, backup resources, and restoration sequences. A network diagram is useful for understanding connectivity but does not by itself provide a complete disaster recovery strategy. A change request documents an approved modification, while a hardware invoice is a procurement record. Effective disaster recovery planning should reflect business requirements, recovery objectives, technical dependencies, and realistic recovery capabilities. Plans should also be reviewed and exercised periodically to identify weaknesses before an actual disaster occurs.

Question 58

A server must automatically restart after power is restored following an outage. Which firmware setting can provide this behavior?

1. Restore-on-power-loss
2. Secure-boot enforcement
3. Processor turbo mode
4. Memory interleaving

Correct Answer: 1

Explanation:

A restore-on-power-loss setting allows a server to automatically return to an operational power state after electrical power is restored. This can be useful in unattended environments where administrators do not want to manually power on every server following an outage. The exact firmware terminology varies among manufacturers, and available choices may include remaining off, turning on, or returning to the previous state. Secure Boot validates boot components, processor turbo mode adjusts CPU performance behavior, and memory interleaving affects memory access patterns. Administrators should ensure that automatic restart behavior aligns with the organization’s recovery procedures and application dependencies.

Question 59

Which boot technology can validate that trusted firmware and operating-system components are used during startup?

1. Legacy BIOS mode
2. Secure Boot
3. PXE imaging
4. Recovery console

Correct Answer: 2

Explanation:

Secure Boot is a firmware security feature that helps prevent unauthorized or untrusted boot components from executing during system startup. It uses cryptographic verification to validate boot software according to the platform’s trusted configuration. This can help defend against certain forms of boot-level malware and unauthorized bootloaders. Legacy BIOS mode does not provide the same modern Secure Boot mechanism. PXE imaging is used to boot systems from a network for deployment or maintenance, while a recovery console provides troubleshooting capabilities after or during a recovery process. Secure Boot should be considered alongside operating-system security controls and appropriate firmware configuration.

Question 60

A server administrator needs to install an operating system over the network without using local installation media. Which technology supports this process?

1. PXE boot
2. Disk cloning
3. USB tethering
4. Serial console

Correct Answer: 1

Explanation:

Preboot Execution Environment (PXE) allows a compatible server to obtain boot information and installation resources from a network. A server can use PXE to contact a provisioning service, download a network boot program, and begin an operating-system deployment or maintenance process without requiring local optical media or a USB installer. Disk cloning copies an existing disk or system image, while USB tethering is unrelated to network-based server deployment. A serial console provides administrative access to supported hardware but does not itself provide network boot functionality. PXE is particularly useful for centralized provisioning of large numbers of servers.