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

 

Question 281.

Which server component converts AC input into regulated DC power for internal hardware?

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

Correct Answer: 1

Explanation:

A server power supply converts incoming electrical power into the regulated DC voltages required by internal components. It distributes appropriate power to the motherboard, processors, storage devices, cooling equipment, and expansion hardware. Enterprise servers may use multiple power supplies so that one unit can fail without immediately shutting down the system. Administrators should verify wattage, efficiency ratings, connector compatibility, and redundancy requirements when replacing a power supply. Monitoring software can also report voltage, current, temperature, and failure conditions. A power supply problem can produce symptoms such as unexpected shutdowns, boot failures, hardware instability, or repeated system resets.

Question 282.

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

1. SDRAM
2. ECC memory
3. Flash memory
4. Cache memory

Correct Answer: 2

Explanation:

Error-Correcting Code, or ECC, memory can detect and correct certain memory errors without requiring the operating system to intervene. This capability is particularly valuable in servers because undetected memory corruption can affect applications, databases, and operating-system processes. ECC implementations vary, but many server platforms are designed to correct common single-bit errors and detect additional error conditions. Administrators should verify that memory modules are compatible with the processor and motherboard because ECC support depends on the complete platform. Memory errors may also generate firmware, operating-system, or management-controller alerts that help identify failing modules before they cause more serious problems.

Question 283.

Which storage technology uses magnetic media and sequential access for large archival workloads?

1. Optical media
2. Flash storage
3. Tape storage
4. RAM disk

Correct Answer: 3

Explanation:

Tape storage uses magnetic media and is well suited to sequential access workloads such as long-term archival and backup retention. Tape libraries can hold large amounts of data while allowing organizations to maintain copies that are physically separated from production systems. Because tape access is sequential, locating a particular file can take longer than retrieving information from random-access storage. Administrators should maintain accurate media catalogs, retention policies, environmental controls, and restoration procedures. Tape remains useful when organizations need inexpensive long-term storage and offline protection. Regular restoration testing is essential because having archived media does not guarantee that recovery will succeed.

Question 284.

Which network service automatically supplies IP configuration to clients?

1. DNS
2. LDAP
3. DHCP
4. SMTP

Correct Answer: 3

Explanation:

Dynamic Host Configuration Protocol, or DHCP, automatically provides network configuration information to clients. Depending on the environment, DHCP can supply an IP address, subnet information, default gateway, DNS server addresses, lease duration, and other options. This reduces the need to manually configure every server or workstation. Administrators should maintain accurate address pools and reservations and monitor for conflicts or exhausted ranges. DHCP troubleshooting often involves checking whether the client can reach the DHCP service, whether the appropriate network segment is configured, and whether the server has available addresses. In enterprise networks, redundant DHCP services may also be used to improve availability.

Question 285.

Which server storage feature allows administrators to combine physical disks into one logical storage pool?

1. Storage pooling
2. Packet aggregation
3. User federation
4. Memory paging

Correct Answer: 1

Explanation:

Storage pooling combines capacity from multiple physical storage devices into a managed logical pool. Administrators can then allocate virtual storage from that pool according to application requirements. Storage pooling can simplify capacity management because physical resources do not necessarily have to be assigned individually to every workload. Depending on the implementation, the pool may also support redundancy, thin allocation, snapshots, or automated placement. Administrators should monitor available capacity and understand how failures affect the pool because pooling alone does not automatically provide fault tolerance. The underlying storage architecture and protection mechanisms determine the resilience of the resulting storage environment.

Question 286.

Which metric represents the number of storage operations completed per second?

1. Throughput
2. IOPS
3. Capacity
4. Utilization

Correct Answer: 2

Explanation:

Input/output operations per second, commonly abbreviated IOPS, measures how many individual storage operations a system can complete in a given second. It is particularly useful when evaluating workloads involving many small random reads and writes, such as databases or virtualization platforms. IOPS differs from throughput, which generally measures the volume of data transferred over time. A storage system can have high throughput but relatively low IOPS, or the reverse, depending on the workload and access pattern. Administrators should consider IOPS together with latency, queue depth, block size, and read/write ratios when evaluating storage performance.

Question 287.

Which technology provides a virtual network segment within a physical Ethernet switch infrastructure?

1. VLAN
2. RAID
3. ACL
4. NTP

Correct Answer: 1

Explanation:

A Virtual Local Area Network, or VLAN, logically separates network traffic within shared physical switching infrastructure. VLANs can be used to isolate server groups, management traffic, application networks, or other logical segments without requiring a separate physical switch for every network. Administrators configure VLAN identifiers on compatible switch ports and network interfaces. Trunk connections can carry multiple VLANs between network devices when required. Incorrect VLAN configuration can result in connectivity failures or unintended traffic exposure. VLAN design should therefore be documented carefully, with appropriate access controls and clear separation between production, management, storage, and other network functions.

Question 288.

What does an Ethernet switch use a MAC address table to determine?

1. Which filesystem contains a packet
2. Which port should receive a frame
3. Which CPU core should execute a process
4. Which DNS server should answer a query

Correct Answer: 2

Explanation:

An Ethernet switch uses its MAC address table to associate learned hardware addresses with specific switch ports. When a frame arrives, the switch examines the destination MAC address and uses the table to determine where the frame should be forwarded. If the destination is unknown, the switch may flood the frame within the appropriate broadcast domain according to its forwarding behavior. Administrators can inspect MAC address tables when troubleshooting unexpected connectivity or identifying which physical port has learned a particular device. Aging mechanisms remove stale entries over time so that the table can adapt when devices move between ports.

Question 289.

Which protocol resolves an IPv4 address to a local hardware address?

1. ARP
2. DNS
3. DHCP
4. SNMP

Correct Answer: 1

Explanation:

Address Resolution Protocol, or ARP, maps an IPv4 address to the corresponding MAC address on a local network segment. When a host needs to communicate with another local IPv4 device, it may use ARP to discover the destination’s link-layer address. The resulting information is temporarily stored in an ARP cache. Administrators can inspect this cache when troubleshooting local connectivity or investigating unexpected address-to-MAC relationships. ARP operates within the local network and should not be confused with DNS, which resolves names to addresses. Network problems involving ARP can result from incorrect addressing, stale cache entries, duplicate addresses, or switching issues.

Question 290.

Which Linux feature allows administrators to install software from a managed repository?

1. Shell alias
2. Package manager
3. Text editor
4. Process viewer

Correct Answer: 2

Explanation:

A package manager provides a controlled method for installing, updating, removing, and tracking software packages on a Linux system. Package managers can retrieve software from configured repositories while resolving dependencies and maintaining package metadata. This is generally safer and easier to manage than manually copying application files because the operating system can track installed versions and related components. Administrators should configure trusted repositories and verify package sources before installing software. Repository metadata and package signatures may also be used to validate software authenticity. Regular package updates help address security vulnerabilities and compatibility issues within supported operating-system versions.

Question 291.

Which Windows command-line tool displays the IP configuration of network adapters?

1. ipconfig
2. tasklist
3. chkdsk
4. format

Correct Answer: 1

Explanation:

The ipconfig utility displays network configuration information for Windows interfaces. Depending on the options used, it can show addresses, subnet information, gateways, DNS-related details, and additional configuration data. It can also perform functions such as releasing and renewing DHCP information or clearing the local DNS resolver cache. Administrators frequently use it as an initial troubleshooting tool when a Windows server has connectivity problems. The command does not independently diagnose every network issue, so results should be considered alongside switch configuration, routing, firewall policy, name resolution, and physical connectivity.

Question 292.

Which security control records successful and failed authentication attempts?

1. File compression
2. Authentication auditing
3. Disk partitioning
4. Traffic shaping

Correct Answer: 2

Explanation:

Authentication auditing records login-related activity such as successful and failed authentication attempts. These records can help administrators investigate unauthorized access attempts, identify account lockouts, detect unusual login patterns, and correlate events during security investigations. The exact audit capabilities depend on the operating system and identity platform. Administrators should configure appropriate audit policies while considering log retention, storage requirements, and privacy obligations. Authentication logs are most useful when their timestamps are synchronized accurately and when logs are protected against unauthorized modification. Centralized log collection can also improve visibility across multiple servers and make correlation easier.

Question 293.

Which server architecture uses a shared enclosure to provide common power and networking to multiple compute modules?

1. Blade system
2. Desktop tower
3. Standalone workstation
4. Peripheral enclosure

Correct Answer: 1

Explanation:

A blade system places multiple compact compute modules inside a shared enclosure. The enclosure can provide common infrastructure such as power distribution, cooling, management, and network connectivity. This design allows organizations to achieve high computing density while reducing some of the cabling associated with individually installed servers. However, the chassis becomes an important dependency because a problem affecting shared infrastructure can affect multiple compute modules. Administrators should evaluate chassis capacity, power requirements, cooling capability, management interfaces, and interconnect compatibility when planning blade deployments. Expansion should also account for the maximum number of supported compute modules and shared resources.

Question 294.

Which backup method copies only files changed since the most recent full backup?

1. Differential backup
2. Full backup
3. Incremental backup
4. Mirror operation

Correct Answer: 1

Explanation:

A differential backup copies data that has changed since the most recent full backup. Each new differential backup generally includes all changes made after that full backup, so its size can increase as time passes until another full backup is created. During restoration, the administrator typically needs the original full backup and the latest required differential backup. This differs from an incremental approach, which records changes since the most recent backup of any type. Administrators should choose a backup method based on storage capacity, backup windows, recovery objectives, and restoration complexity rather than considering backup type in isolation.

Question 295.

Which server security mechanism restricts access based on assigned user roles?

1. Role-based access control
2. Open guest authorization
3. Shared credential access
4. Anonymous permissions

Correct Answer: 1

Explanation:

Role-Based Access Control, or RBAC, assigns permissions according to defined roles rather than granting every user individual permissions independently. For example, database administrators, help-desk personnel, and application operators can receive different sets of privileges appropriate to their responsibilities. RBAC simplifies access management when many users share similar job functions and makes permission reviews easier. Administrators should ensure that roles are carefully designed and that users receive only the permissions required for their duties. Periodic access reviews are important because employees may change responsibilities while retaining memberships in older roles, potentially resulting in unnecessary privileges.

Question 296.

Which storage protocol is commonly used to present block-level storage over an IP network?

1. SMB
2. NFS
3. iSCSI
4. FTP

Correct Answer: 3

Explanation:

Internet Small Computer Systems Interface, or iSCSI, transports block-level storage commands over IP networks. An iSCSI initiator on a server communicates with a target that provides storage resources, allowing the server operating system to treat the presented storage as block devices. This differs from file-based protocols such as SMB and NFS, where clients access files through a filesystem-oriented interface. Administrators deploying iSCSI should consider network isolation, authentication, multipath connectivity, MTU settings where appropriate, and storage performance. Proper design can provide flexible storage connectivity without requiring a dedicated Fibre Channel fabric.

Question 297.

Which monitoring value indicates the percentage of processor time currently being consumed?

1. CPU utilization
2. Disk capacity
3. Network latency
4. Memory address width

Correct Answer: 1

Explanation:

CPU utilization represents the proportion of processor capacity being used during a measurement period. High utilization can be normal for workloads designed to use available processing resources, so administrators should not treat every high percentage as a fault. Performance analysis should consider duration, workload type, per-core behavior, processor scheduling, memory pressure, and application response times. A server that remains near maximum utilization while response times increase may require additional processing capacity or workload optimization. Conversely, brief spikes during expected processing periods may be completely normal. Establishing historical baselines helps distinguish normal activity from sustained performance problems.

Question 298.

Which server technology provides a virtual machine with an emulated or virtualized hardware environment?

1. Hypervisor
2. Text editor
3. File archiver
4. Network scanner

Correct Answer: 1

Explanation:

A hypervisor provides the virtualization layer that allows multiple virtual machines to operate on shared physical hardware. It presents virtual processors, memory, storage interfaces, network interfaces, and other resources to guest operating systems. Hypervisors can be implemented directly on server hardware or operate on top of another operating system depending on the architecture. Administrators must allocate sufficient physical resources and configure virtual machines according to workload requirements. Virtualization also introduces management considerations such as snapshots, resource contention, host availability, guest isolation, and virtual networking. Proper capacity planning is necessary to prevent excessive workloads from overwhelming the physical host.

Question 299.

Which server maintenance practice verifies that a backup can actually be restored?

1. Restore testing
2. Log rotation
3. Disk defragmentation
4. Password expiration

Correct Answer: 1

Explanation:

Restore testing verifies that stored backup data can be successfully recovered when needed. A backup job completing without errors does not necessarily guarantee that the resulting data is usable, because problems can occur with media, permissions, configuration, encryption keys, application dependencies, or restoration procedures. Administrators should periodically perform controlled recovery tests and document the results. Testing should reflect important recovery scenarios and may include individual files, application data, system images, or complete services depending on organizational requirements. Restore testing also helps identify outdated documentation and ensures that personnel understand the procedures required during an actual recovery event.

Question 300.

Which planning activity estimates when existing server capacity will become insufficient?

1. Capacity forecasting
2. Password auditing
3. Cable labeling
4. Incident classification

Correct Answer: 1

Explanation:

Capacity forecasting estimates future resource requirements by analyzing current utilization, historical trends, workload growth, and expected business changes. Administrators can use forecasting to determine when additional processor capacity, memory, storage, network bandwidth, or other infrastructure resources may be required. Effective forecasting reduces the likelihood of reacting to resource shortages after performance has already degraded. It should account for normal growth as well as seasonal or planned workload changes. Forecasting is more useful when supported by accurate monitoring data and documented assumptions. Organizations can then align procurement, migration, and infrastructure expansion activities with anticipated demand.