View Full HP HPE0-V25 Exam Dumps and Practice Test Dumps

 

Question 61

Which firmware setting determines whether a server uses UEFI or legacy startup?

1. Boot mode
2. Fan policy
3. Power profile
4. Storage policy

Correct Answer: 1

Explanation:

The boot mode determines which firmware startup method the server uses. Modern HPE servers commonly support UEFI mode, while some configurations may also provide legacy or compatibility options. The selected mode affects boot entries, supported operating-system installation methods, and features such as Secure Boot. Changing boot modes after an operating system has been installed can sometimes prevent the system from finding the expected boot configuration. Fan policies manage cooling behavior, power profiles influence performance and energy use, and storage policies control storage-related settings rather than firmware startup mode.

Question 62

Which component protects a server from certain unauthorized firmware changes?

1. DIMM shield
2. Firmware security mechanism
3. Drive cage
4. Cable retainer

Correct Answer: 2

Explanation:

Firmware security mechanisms help protect critical server firmware against unauthorized modification. Depending on the platform and configuration, these protections can include authentication, signature validation, recovery mechanisms, and other platform-security controls. Protecting firmware is important because compromised firmware can affect a system before the operating system starts. A DIMM shield, drive cage, and cable retainer are physical components that do not provide firmware authentication or integrity protection. Administrators should combine firmware security with controlled update procedures and appropriate access restrictions to reduce the risk of unauthorized platform changes.

Question 63

Which server resource is most directly affected by CPU core oversubscription in virtualization?

1. Processor capacity
2. Disk partition size
3. Network address space
4. Rack height

Correct Answer: 1

Explanation:

CPU core oversubscription occurs when virtual machines are assigned more virtual CPU capacity than the physical processors can simultaneously provide. The resulting contention primarily affects available processor capacity and can lead to increased CPU wait time or reduced application performance when demand becomes high. Oversubscription can be useful when workloads have different utilization patterns, but administrators must monitor actual consumption carefully. Disk capacity, IP addressing, and rack dimensions are not directly consumed by CPU oversubscription. Proper workload sizing and monitoring help maintain predictable virtualization performance.

Question 64

Which HPE component stores frequently accessed data to accelerate storage operations?

1. System ROM
2. Smart Array cache
3. Network buffer
4. Boot partition

Correct Answer: 2

Explanation:

Smart Array controllers can use cache memory to improve storage performance by temporarily holding frequently accessed or recently written data. Depending on the controller and configuration, caching can reduce the time required to complete certain storage operations and improve overall I/O responsiveness. Cache behavior varies by controller generation and protection configuration. System ROM contains firmware, a network buffer handles communication data, and a boot partition stores startup files. Storage caching should be configured appropriately because performance benefits depend on workload characteristics, controller capabilities, and data-protection mechanisms.

Question 65

Which HPE feature helps automate configuration consistency across managed infrastructure?

1. OneView profiles
2. Manual BIOS entry
3. Local USB setup
4. Individual console sessions

Correct Answer: 1

Explanation:

HPE OneView profiles can define and apply consistent server configurations across managed infrastructure. This approach reduces the need to manually configure each physical server and helps administrators maintain standardized settings. Profiles can include supported aspects of server connectivity and hardware configuration, depending on the environment. Manual BIOS configuration and local USB setup are more dependent on individual systems, while separate console sessions increase repetitive administrative work. Configuration consistency is particularly valuable when many servers need similar settings because it reduces variation and simplifies ongoing infrastructure management.

Question 66

What is the primary purpose of CPU cache levels such as L1 and L2?

1. Store operating-system backups
2. Reduce processor data access time
3. Increase network throughput
4. Expand physical disk capacity

Correct Answer: 2

Explanation:

L1 and L2 caches provide the processor with fast-access storage for frequently used instructions and data. Keeping commonly needed information close to the CPU reduces the average time required to retrieve data from slower system memory. L1 cache is generally smaller and faster, while L2 cache is typically larger but somewhat slower. Cache does not provide operating-system backup storage, network throughput, or additional disk capacity. Processor cache hierarchy is an important part of system performance because CPUs can execute instructions much faster when frequently needed data is available nearby.

Question 67

Which server cooling strategy separates incoming cool air from heated exhaust air?

1. Memory balancing
2. Hot-cold aisle layout
3. Processor pinning
4. Storage zoning

Correct Answer: 2

Explanation:

A hot-cold aisle layout organizes racks so that server fronts generally face cool-air aisles while server exhausts face hot-air aisles. This arrangement reduces mixing between conditioned supply air and heated exhaust air, making cooling systems more effective. Data centers can further improve this design using containment systems that physically control airflow. Memory balancing, processor pinning, and storage zoning address unrelated computing functions. Correct airflow organization becomes increasingly important as server density and rack-level thermal loads increase, helping maintain appropriate inlet temperatures and improve overall cooling efficiency.

Question 68

Which protocol is commonly used to provide file-level storage access from Linux clients?

1. NFS
2. iSCSI
3. Fibre Channel
4. SAS

Correct Answer: 1

Explanation:

NFS, or Network File System, is commonly used to provide file-level storage access across IP networks, particularly in Linux and Unix environments. An NFS client can mount a remote exported directory and access files through the network as though the directory were part of the local filesystem. iSCSI and Fibre Channel generally provide block-level storage connectivity, while SAS is a storage interface technology used for direct-attached devices and supported storage systems. NFS is therefore appropriate when applications need shared file-based access rather than raw block devices.

Question 69

What does a server’s memory sparing feature reserve?

1. Network ports
2. Processor cores
3. Backup memory capacity
4. Storage cache

Correct Answer: 3

Explanation:

Memory sparing reserves a portion of installed memory so that it can be used when certain memory failures occur. The reserved capacity is not normally available for ordinary workload use until it is needed as part of the configured fault-tolerance mechanism. This can improve system resilience by allowing the server to continue operating after qualifying memory errors. Memory sparing is different from memory mirroring, which maintains duplicated memory contents. Network ports, processor cores, and storage cache are unrelated resources and are not what memory sparing reserves.

Question 70

Which HPE management function allows administrators to remotely press a server’s power control?

1. Virtual power control
2. Memory scrubbing
3. Storage zoning
4. Firmware signing

Correct Answer: 1

Explanation:

Remote management controllers such as HPE iLO provide virtual power-control functions that allow administrators to remotely power a server on, power it off, or perform supported restart operations. This is particularly useful when a server is located in a remote data center or when the operating system is unresponsive. Remote power control operates independently of normal operating-system access because it is provided through the server management hardware. Memory scrubbing, storage zoning, and firmware signing perform entirely different functions. Appropriate permissions should be used when granting administrators remote power-management access.

Question 71

Which storage connection provides a dedicated high-speed path between a server and local drives?

1. SAS
2. HTTP
3. SMTP
4. DNS

Correct Answer: 1

Explanation:

SAS, or Serial Attached SCSI, is a storage interface commonly used to connect enterprise servers to supported internal or directly attached drives. It provides reliable high-speed communication between storage devices and controllers and supports enterprise storage features such as multiple device types and suitable cabling options. HTTP, SMTP, and DNS are network protocols serving application, email, and name-resolution functions rather than direct storage-device connectivity. SAS is therefore commonly encountered in server storage architectures where reliable direct drive connectivity is required.

Question 72

Which feature allows a server to continue operating despite failure of one cooling fan?

1. Fan replacement mode
2. Cooling redundancy
3. Thermal calibration
4. Airflow balancing

Correct Answer: 2

Explanation:

Cooling redundancy uses multiple fans or fan zones so that the server can maintain sufficient cooling if one supported fan fails. The management system can detect a fan fault and adjust other cooling components as necessary, depending on the server design. This provides additional resilience and can allow maintenance to occur without immediately shutting down the system. Fan replacement mode is not the general term for this capability, while thermal calibration and airflow balancing describe different aspects of thermal management. Redundant cooling is especially valuable in continuously operating data-center environments.

Question 73

What does a network interface card primarily provide?

1. Network connectivity
2. Memory protection
3. Processor scheduling
4. Disk mirroring

Correct Answer: 1

Explanation:

A Network Interface Card, or NIC, provides the hardware interface through which a server communicates with a network. It handles network-frame transmission and reception and may support capabilities such as VLAN tagging, teaming, offloads, and different Ethernet speeds depending on the adapter. NICs can be integrated into the motherboard or installed as expansion adapters. Memory protection is handled by memory architecture and related hardware, processor scheduling is managed by the operating system or hypervisor, and disk mirroring belongs to storage redundancy mechanisms.

Question 74

Which HPE tool is designed to help diagnose server hardware problems?

1. Intelligent Provisioning
2. Insight Diagnostics
3. OneView
4. Virtual Connect

Correct Answer: 2

Explanation:

HPE Insight Diagnostics provides diagnostic capabilities for supported server hardware. It can help administrators examine component information and identify hardware-related conditions during troubleshooting. Diagnostic tools are useful when a server reports unexpected behavior or when administrators need to verify the condition of individual components. Intelligent Provisioning focuses on deployment and configuration, OneView provides centralized infrastructure management, and Virtual Connect handles supported server networking and connectivity functions. Using diagnostics can help narrow down hardware faults before replacing components or escalating a support case.

Question 75

What does a rack unit designation such as 2U describe?

1. Power consumption
2. Network bandwidth
3. Equipment height
4. Storage capacity

Correct Answer: 3

Explanation:

A rack unit, abbreviated as U, describes the vertical height occupied by equipment in a standard server rack. One rack unit is a standardized measurement used when planning rack space. A 2U server therefore occupies twice the vertical height of a 1U device. Rack-unit measurements do not describe power consumption, network bandwidth, or storage capacity. Understanding rack height is important when calculating available cabinet space and determining whether a collection of servers, switches, storage systems, and other equipment can physically fit within the intended rack.

Question 76

Which storage method presents a remote disk to a server as a block device over Fibre Channel?

1. File sharing
2. FC block storage
3. Web storage
4. Tape streaming

Correct Answer: 2

Explanation:

Fibre Channel block storage presents remote storage resources to a server as block devices. The server can then use those devices similarly to locally attached disks, allowing filesystems, databases, and virtualization platforms to operate on the storage. Fibre Channel provides a dedicated storage networking architecture with specialized host bus adapters, switches, and storage targets. File sharing provides file-level access, web storage typically uses application-layer interfaces, and tape streaming serves backup-oriented workflows. Fibre Channel block storage is commonly used where predictable enterprise storage connectivity and centralized management are required.

Question 77

Which server security feature verifies signed components during the boot process?

1. Secure Boot
2. NIC teaming
3. Storage caching
4. Memory sparing

Correct Answer: 1

Explanation:

Secure Boot verifies the authenticity of supported boot components using trusted cryptographic signatures before allowing them to execute. This helps protect the startup chain from unauthorized or modified software. Secure Boot is generally associated with UEFI firmware and requires compatible operating-system and bootloader support. NIC teaming provides network redundancy, storage caching improves storage performance, and memory sparing supports memory fault tolerance. Secure Boot is therefore a platform-security feature that helps establish trust during the earliest stages of operating-system startup.

Question 78

Which network component converts electrical or optical signals into a compatible Ethernet interface?

1. DIMM
2. SFP transceiver
3. RAID controller
4. Power module

Correct Answer: 2

Explanation:

An SFP transceiver provides a pluggable network interface that converts signals between the network device’s electrical interface and the physical transmission medium supported by the installed module. Depending on the specific SFP type, it can support copper or fiber connectivity at the appropriate network speed. This modular design allows network equipment to use different physical media without replacing the entire network device. DIMMs provide memory, RAID controllers manage storage arrays, and power modules supply electrical power. Transceiver selection must match the required speed, connector type, distance, and device compatibility.

Question 79

Which storage component provides the physical interface between removable drives and a server backplane?

1. Drive carrier
2. CPU heatsink
3. Memory riser
4. Network mezzanine

Correct Answer: 1

Explanation:

A drive carrier holds a compatible storage drive and provides the mechanical connection required for installation into a supported server drive bay. In hot-plug configurations, the carrier aligns the drive with the server’s backplane so that the appropriate power and data connections can be established. The carrier also makes drive removal and replacement easier during maintenance. A CPU heatsink manages processor temperature, a memory riser supports memory installation in certain server designs, and a network mezzanine provides network connectivity rather than drive mounting.

Question 80

Which infrastructure feature helps prevent a single electrical source from disabling redundant server power supplies?

1. Shared outlet strip
2. Dual power feeds
3. Single circuit
4. Common extension lead

Correct Answer: 2

Explanation:

Dual power feeds allow redundant server power supplies to receive electricity from separate upstream sources. This can reduce the impact of a failure affecting one circuit, PDU, or power path. For meaningful power redundancy, administrators should ensure that the separate feeds are genuinely independent and appropriately sized for the expected load. Simply installing two power supplies on the same electrical source does not provide the same level of protection against an upstream circuit failure. Power-path diversity is therefore an important consideration when designing highly available server infrastructure.