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

 

Question 261

Which feature helps reduce unauthorized server access through the front panel?

1. Memory sparing
2. Front bezel security
3. RAID striping
4. CPU scaling

Correct Answer: 2

Explanation:

Front bezel security helps restrict physical access to server components and controls located behind or near the front panel. A secured bezel can help prevent unauthorized removal of drives or casual access to system controls. This is a physical security measure rather than a performance or storage feature. Memory sparing protects against memory failures, RAID striping distributes data across drives, and CPU scaling adjusts processor resources. Physical controls remain important even when strong software-based authentication and access policies are already implemented.

Question 262

What does an HPE server’s serial number primarily identify?

1. Individual system
2. RAID configuration
3. Network segment
4. Firmware family

Correct Answer: 1

Explanation:

A server serial number identifies an individual physical system. It is useful for support records, warranty tracking, asset management, service requests, and hardware replacement documentation. Unlike a product ID, which generally identifies a model or product family, the serial number distinguishes one physical unit from another. RAID configuration describes storage organization, a network segment identifies logical connectivity, and a firmware family refers to software versions. Accurate serial-number records help administrators associate maintenance activities with the correct server.

Question 263

Which option represents a common 25Gb Ethernet connection speed?

1. 2.5 Gbps
2. 10 Gbps
3. 25 Gbps
4. 100 Mbps

Correct Answer: 3

Explanation:

25 Gbps is a common Ethernet connection speed used in modern data-center networking. It provides substantially more bandwidth than 10 GbE while often fitting efficiently into server and switch architectures designed for higher-throughput workloads. The actual negotiated speed depends on the network adapter, transceiver or cable, switch port, and configuration. The other values represent different Ethernet speeds. Understanding interface rates helps administrators select compatible network components and plan capacity for demanding server environments.

Question 264

What is an active optical cable designed to carry?

1. Electrical power
2. Optical data signals
3. RAID metadata
4. Cooling airflow

Correct Answer: 2

Explanation:

An active optical cable, or AOC, carries data using optical transmission between its integrated connectors. It is commonly used for higher-speed networking where longer reach or reduced electromagnetic interference can be useful. The cable incorporates optical components to convert electrical signals to optical signals and back again. It does not transport electrical power, RAID metadata, or cooling airflow. AOC selection should consider supported data rate, connector type, distance, and compatibility with the connected network equipment.

Question 265

Which feature can automatically negotiate compatible Ethernet parameters?

1. Autonegotiation
2. Secure Boot
3. Memory sparing
4. Drive cloning

Correct Answer: 1

Explanation:

Ethernet autonegotiation allows compatible network interfaces to exchange information and select supported communication parameters. Depending on the interface and standards involved, these parameters can include speed and duplex operation. This reduces the need for manually configuring both ends of a connection. Secure Boot protects the startup process, memory sparing provides resilience against memory failures, and drive cloning duplicates storage contents. Properly matched network devices can use autonegotiation to establish an appropriate link configuration.

Question 266

What does an HPE server asset record commonly track?

1. Processor temperature
2. Equipment ownership
3. RAID parity
4. Packet checksum

Correct Answer: 2

Explanation:

An asset record commonly tracks administrative information associated with physical equipment, including ownership, location, acquisition details, and lifecycle information. Maintaining accurate asset records helps organizations manage large server inventories and coordinate maintenance activities. Processor temperature belongs to hardware monitoring, RAID parity relates to storage protection, and packet checksums are associated with network communication. Asset management becomes especially valuable in large environments where many systems have similar configurations and administrators need reliable records for identification and operational planning.

Question 267

Which storage method writes identical data to multiple drives?

1. Striping
2. Parity
3. Mirroring
4. Spanning

Correct Answer: 3

Explanation:

Mirroring writes the same data to multiple drives, creating redundant copies. RAID 1 is the most familiar example of a mirrored storage configuration. If one participating drive fails, the remaining copy can continue providing access to the data. Striping distributes data across drives, parity stores calculated recovery information, and spanning combines storage capacity without necessarily providing redundancy. Mirroring is therefore useful when data availability is more important than maximizing usable capacity from a given number of drives.

Question 268

What is the primary purpose of a storage hot spare?

1. Expand processor cache
2. Replace failed drive
3. Increase network speed
4. Store firmware keys

Correct Answer: 2

Explanation:

A storage hot spare is a prepared drive that can be used when a qualifying drive in a redundant storage array fails. The controller can begin rebuilding data onto the spare, depending on the array configuration and controller capabilities. This helps restore redundancy without requiring an administrator to immediately install another physical drive. Processor cache, network speed, and firmware key storage are unrelated functions. Spare-drive planning can reduce the duration of degraded storage operation after a hardware failure.

Question 269

Which RAID feature determines how many drives participate in a stripe?

1. Stripe width
2. Cache policy
3. Queue depth
4. Drive firmware

Correct Answer: 1

Explanation:

Stripe width describes the number of drives involved in a particular striped data layout. It influences how data is distributed across the members of the array and can affect performance characteristics and usable capacity. Cache policy controls how the storage controller handles cached operations, queue depth concerns outstanding I/O requests, and drive firmware controls device-level behavior. Understanding stripe width is useful when evaluating storage layouts because it helps explain how data is distributed across participating drives.

Question 270

What does SSD garbage collection primarily manage?

1. Unused flash blocks
2. Ethernet packets
3. CPU instructions
4. Memory channels

Correct Answer: 1

Explanation:

SSD garbage collection reorganizes and prepares flash storage by reclaiming blocks containing data that is no longer needed. Because flash memory cannot simply overwrite existing data in the same manner as traditional magnetic storage, the controller performs background operations to consolidate valid data and free blocks for future writes. These processes work alongside wear leveling and other flash-management techniques. Garbage collection does not manage Ethernet traffic, CPU instructions, or system memory channels.

Question 271

Which feature allows a server to boot from a selected temporary device?

1. Boot device menu
2. RAID cache
3. Fan profile
4. NIC teaming

Correct Answer: 1

Explanation:

A boot device menu allows an administrator to select a particular device for the current startup sequence. This can be useful when booting temporarily from installation media, diagnostic media, or another supported storage source without permanently changing the configured boot order. RAID cache affects storage I/O, fan profiles control cooling behavior, and NIC teaming combines network interfaces for connectivity or redundancy. Temporary boot selection is particularly useful during operating-system installation and troubleshooting.

Question 272

What does CPU affinity control in a virtualized environment?

1. Storage capacity
2. Network addressing
3. Processor assignment
4. Fan rotation

Correct Answer: 3

Explanation:

CPU affinity controls which processor cores or logical processors a workload is allowed to use. In virtualized environments, administrators may use affinity settings to associate particular virtual machines or workloads with selected processor resources. This can support workload isolation or specialized performance requirements when applied appropriately. Storage capacity, network addressing, and fan rotation are controlled by different system components. CPU affinity should be configured carefully because unnecessarily restricting available processors can reduce scheduling flexibility.

Question 273

Which Ethernet feature can prioritize selected traffic classes?

1. Quality of Service
2. Drive mirroring
3. Memory parity
4. Firmware recovery

Correct Answer: 1

Explanation:

Quality of Service, or QoS, provides mechanisms for classifying and prioritizing network traffic. Administrators can use QoS policies to give selected traffic classes preferential treatment when network resources become constrained. This can be useful for latency-sensitive or business-critical applications. Drive mirroring provides storage redundancy, memory parity supports error detection, and firmware recovery addresses corrupted system firmware. QoS is therefore a network-management capability rather than a storage, memory, or firmware feature.

Question 274

Which hardware feature can provide direct memory access for compatible devices?

1. ECC
2. DMA
3. RAID
4. POST

Correct Answer: 2

Explanation:

Direct Memory Access, or DMA, allows compatible hardware devices to transfer data to or from system memory with reduced involvement from the CPU for each individual transfer. This can improve efficiency for operations involving storage, networking, and other high-throughput devices. ECC protects memory integrity, RAID manages redundant storage configurations, and POST checks hardware during startup. DMA is therefore an important mechanism for efficient device-to-memory data movement within a server system.

Question 275

What is the purpose of an AOC in high-speed networking?

1. Optical connectivity
2. Memory expansion
3. Storage parity
4. Power conversion

Correct Answer: 1

Explanation:

An AOC, or Active Optical Cable, provides optical connectivity between compatible network devices. It integrates optical components into the cable assembly, making it suitable for supported high-speed connections where optical transmission is beneficial. AOCs are often selected based on speed, connector type, reach, and equipment compatibility. Memory expansion requires additional memory hardware, storage parity provides redundancy information, and power conversion is handled by power equipment. AOC selection should match the supported interface specifications of both endpoints.

Question 276

Which server component converts incoming AC power for internal use?

1. Storage controller
2. Network adapter
3. Power supply
4. Memory module

Correct Answer: 3

Explanation:

The server power supply converts incoming electrical power into the voltage levels required by internal components. Enterprise servers may use redundant power supplies so that the system can continue operating if one supply or power path becomes unavailable. Storage controllers manage disks, network adapters provide connectivity, and memory modules store active data and instructions. Proper power-supply sizing and compatible input characteristics are important when designing or expanding server deployments.

Question 277

What does CPU frequency scaling adjust?

1. Processor operating speed
2. RAID redundancy
3. Network VLANs
4. Drive capacity

Correct Answer: 1

Explanation:

CPU frequency scaling adjusts processor operating frequency according to workload requirements, system policies, or power-management settings. Lower frequencies can reduce power consumption under lighter workloads, while higher frequencies may be used when additional processing performance is required. The actual behavior depends on the processor, firmware, operating system, and configured power policy. Frequency scaling does not modify RAID protection, network VLAN configuration, or physical drive capacity. It is primarily a processor power and performance management mechanism.

Question 278

Which memory technology detects and corrects certain single-bit errors?

1. DDR timing
2. ECC memory
3. Flash cache
4. Virtual memory

Correct Answer: 2

Explanation:

ECC memory uses additional error-correction information to detect and correct certain memory errors, particularly single-bit errors. This helps improve system reliability in enterprise environments where undetected memory corruption could affect applications or operating-system stability. DDR timing controls memory signaling characteristics, flash cache is associated with storage operations, and virtual memory uses storage to extend available addressable memory. ECC is therefore a key reliability feature for server-class memory systems.

Question 279

Which interface is commonly used for an external monitor connection on servers?

1. VGA
2. SAS
3. SATA
4. Fibre Channel

Correct Answer: 1

Explanation:

VGA is a commonly encountered video interface on server platforms for connecting a local display. It can be useful during physical installation, firmware configuration, and troubleshooting when remote management access is unavailable. SAS and SATA are storage interfaces, while Fibre Channel is primarily used for storage-area networking. Although newer systems may provide different display technologies, VGA remains relevant on many enterprise servers and is frequently used for direct local console access.

Question 280

What is the main benefit of CPU power management?

1. Lower energy consumption
2. Larger storage pools
3. Faster RAID rebuilds
4. More network ports

Correct Answer: 1

Explanation:

CPU power management adjusts processor behavior to balance performance requirements with energy consumption. Depending on workload and platform configuration, the processor may reduce power usage during periods of lower demand and increase operating performance when additional processing capacity is required. This can contribute to overall server power efficiency and thermal management. CPU power management does not directly expand storage, accelerate RAID reconstruction, or add network interfaces. Its primary purpose is controlling processor power and performance characteristics.