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Question 361

Which Windows utility can verify and repair protected operating system files that have become corrupted?

1. DiskPart
2. SFC
3. Task Scheduler
4. Registry Editor

Correct Answer: 2

Explanation

System File Checker, commonly accessed with the sfc command, scans protected Windows system files and can replace corrupted or modified copies with valid versions when possible. It is useful when Windows components behave unexpectedly because of damaged system files. A technician should review the command output to determine whether corruption was found and whether repairs were successful. If SFC cannot complete its repairs, additional troubleshooting may be necessary, including servicing the Windows component store. System File Checker should be used as part of a broader diagnostic process.

Question 362

Which Windows command can display the computer’s configured hostname?

1. hostname
2. tasklist
3. netstat
4. gpupdate

Correct Answer: 1

Explanation

The hostname command displays the name assigned to the local Windows computer. This can be useful when a technician needs to identify a workstation during remote support, network troubleshooting, or inventory verification. The hostname may also be referenced by network services and administrative tools. If the displayed name does not match organizational naming conventions, the technician should verify the intended configuration before changing it. Computer-name changes can affect network identification and management, so they should follow established procedures and may require a restart or additional administrative steps.

Question 363

Which Windows tool can display the applications configured to launch when a user signs in?

1. Disk Management
2. Event Viewer
3. Task Manager
4. Character Map

Correct Answer: 3

Explanation

Task Manager includes a Startup section that lists applications configured to launch during Windows startup or user sign-in. Technicians can review this list when troubleshooting slow boot times or unnecessary background activity. The startup impact information can help identify applications that may contribute to longer startup times. However, technicians should not disable entries solely because they appear unfamiliar. Each item should be identified and evaluated before changing its status. Security software, synchronization tools, and hardware utilities may legitimately require automatic startup.

Question 364

A user cannot print because Windows has several documents stuck in the print queue. Which service should the technician investigate?

1. Windows Search
2. Print Spooler
3. Task Scheduler
4. Windows Time

Correct Answer: 2

Explanation

The Print Spooler service manages print jobs sent to printers and maintains the Windows print queue. If jobs become stuck, the spooler service or its associated print components may require troubleshooting. A technician can inspect the queue, verify printer connectivity, and check the Print Spooler service status. Restarting the service may resolve certain temporary queue problems, although persistent failures may indicate a driver, application, or printer communication issue. Technicians should avoid deleting unrelated system files and should document significant service changes made during troubleshooting.

Question 365

Which Windows command can request a new IP address from a DHCP server?

1. ipconfig /renew
2. ipconfig /displaydns
3. ipconfig /flushdns
4. ipconfig /release

Correct Answer: 1

Explanation

The ipconfig /renew command requests a new IP configuration from a DHCP server for applicable network adapters. It is useful when a computer has lost its DHCP configuration or when network settings need to be refreshed. If renewal fails, the technician should investigate whether the adapter is connected, whether DHCP is available, and whether network infrastructure is functioning correctly. The command does not repair every network problem because DNS, routing, authentication, or physical connectivity issues can still prevent communication. Technicians should evaluate the complete network configuration.

Question 366

Which Windows command can remove the current DHCP-assigned IP configuration from a network adapter?

1. ipconfig /renew
2. ipconfig /release
3. ipconfig /all
4. ipconfig /displaydns

Correct Answer: 2

Explanation

The ipconfig /release command releases the current DHCP-assigned IPv4 configuration from a network adapter. It is commonly used with ipconfig /renew when troubleshooting DHCP-related connectivity problems. After releasing an address, the computer may temporarily have no usable IPv4 configuration until a new lease is obtained. Technicians should understand this effect before executing the command on a system that requires network connectivity. If renewal does not succeed, the technician should investigate the adapter, DHCP server, physical connection, wireless association, and network infrastructure.

Question 367

Which Windows command displays cached DNS entries stored on the local computer?

1. ipconfig /displaydns
2. ipconfig /release
3. ipconfig /renew
4. ipconfig /allcompartments

Correct Answer: 1

Explanation

The ipconfig /displaydns command displays DNS information currently stored in the Windows resolver cache. This can help technicians determine whether a hostname has recently been resolved and what address information is cached locally. It is useful when investigating possible stale or incorrect DNS information. The presence of an entry in the cache does not guarantee that the current DNS server would return the same result. Technicians can compare cached information with a fresh DNS query when diagnosing name-resolution problems.

Question 368

Which Windows recovery option is most appropriate when a recently installed driver causes startup problems and a restore point is available?

1. System Restore
2. Disk Cleanup
3. Print Management
4. Storage Spaces

Correct Answer: 1

Explanation

System Restore can return system configuration, drivers, and related operating-system settings to an earlier restore point. If a recently installed driver is causing startup problems and a suitable restore point exists, restoring to a point created before the change can help reverse the configuration. This process is different from restoring personal files from a backup. Technicians should review the available restore points and understand which applications or drivers may be affected. Recovery actions should be documented, particularly on managed business systems.

Question 369

Which Windows command can display information about current network connections and listening ports?

1. route
2. netstat
3. hostname
4. gpupdate

Correct Answer: 2

Explanation

The netstat command can display active network connections, listening ports, and other network-related information. It can help technicians determine whether a particular service is listening for connections or whether unexpected network sessions are active. When investigating an unfamiliar connection, the technician should identify the associated process and determine whether it is legitimate. Network output alone does not prove malicious activity because many normal applications communicate with remote systems. Findings should therefore be correlated with installed software, process information, firewall rules, and security alerts.

Question 370

Which Windows tool can display detailed information about CPU, memory, disk, and network usage for active processes?

1. Resource Monitor
2. Notepad
3. Disk Cleanup
4. System Restore

Correct Answer: 1

Explanation

Resource Monitor provides detailed real-time information about resource consumption on a Windows computer. It can show how individual processes use CPU, memory, disk, and network resources. This makes it useful when Task Manager indicates a performance problem but additional detail is needed to identify the responsible process or activity. A technician should examine whether high usage is expected, such as during backups or software updates. If abnormal activity persists, the technician can investigate application behavior, configuration, malware, or hardware limitations.

Question 371

Which Windows utility can identify whether a disk volume has file-system errors?

1. chkdsk
2. gpupdate
3. whoami
4. net use

Correct Answer: 1

Explanation

The chkdsk utility checks a file system and volume for certain logical errors and can, when used with appropriate options, attempt repairs. It is useful when users experience file-access errors, unexpected corruption, or symptoms suggesting a problem with the file system. Some repair operations may require the volume to be unavailable or may run during a restart. Technicians should ensure that important data is backed up before performing potentially disruptive repairs. If hardware failure is suspected, file-system repair alone may not resolve the underlying storage problem.

Question 372

Which Linux command can display information about the operating system and kernel?

1. uname
2. mkdir
3. grep
4. chmod

Correct Answer: 1

Explanation

The Linux uname command displays system information such as the kernel name and, with appropriate options, additional details about the kernel release, machine architecture, and operating environment. Technicians can use this information when determining compatibility with software, drivers, or troubleshooting procedures. Knowing the kernel and architecture can help ensure that the correct package or configuration is selected. The command provides identification information rather than repairing a problem. Technicians should combine it with other diagnostic commands when investigating operating-system or hardware compatibility issues.

Question 373

Which Linux command can show how much disk space is being used by files and directories?

1. du
2. ps
3. kill
4. passwd

Correct Answer: 1

Explanation

The Linux du command estimates disk-space usage by files and directories. It can help technicians locate directories that are consuming excessive storage when a file system is running low on capacity. This differs from df, which reports available and used space for mounted file systems. After identifying large directories, technicians should determine whether the files are necessary before deleting anything. Log files, application data, backups, and cached content may have legitimate purposes. Storage cleanup should follow organizational retention and security policies.

Question 374

Which Linux command is commonly used to change a user’s password?

1. passwd
2. mount
3. top
4. cat

Correct Answer: 1

Explanation

The Linux passwd command is used to change a user’s password and can also be used by authorized administrators for certain account-management operations. Password changes should follow organizational security requirements, including minimum length, complexity, and reuse policies where applicable. Technicians should never record passwords in tickets or share credentials unnecessarily. If a user forgets a password, the technician should use the approved account-recovery process rather than bypassing authentication controls. Proper password management is an important part of protecting local and network resources.

Question 375

Which macOS feature is designed to restrict applications downloaded from untrusted sources?

1. Gatekeeper
2. Spotlight
3. Time Machine
4. Activity Monitor

Correct Answer: 1

Explanation

Gatekeeper helps protect macOS systems by applying security controls to applications based on their source and developer verification. When software is downloaded from an untrusted or unidentified source, Gatekeeper may prevent or warn against launching it. Technicians should investigate the source and authenticity of blocked software before considering any exception. Disabling security controls simply to install an application can expose the system to unnecessary risk. Approved software should come from legitimate sources and should comply with organizational application-management requirements.

Question 376

A macOS system is running slowly, and one process is consuming unusually high CPU resources. Which tool should the technician use?

1. Activity Monitor
2. Migration Assistant
3. Keychain Access
4. Disk Utility

Correct Answer: 1

Explanation

Activity Monitor allows technicians to observe CPU utilization and identify processes consuming unusually high resources on macOS. If one process consistently uses excessive CPU, the technician can investigate whether it belongs to a legitimate application, system service, update, or potentially unwanted program. The process should not automatically be terminated without understanding its purpose. Repeated high CPU usage may indicate an application problem, background task, configuration issue, or malware. Activity Monitor can provide the evidence needed to continue troubleshooting while minimizing unnecessary system changes.

Question 377

Which mobile security capability can remove organizational data from a lost company-owned device remotely?

1. Remote wipe
2. NFC pairing
3. Bluetooth discovery
4. Screen rotation

Correct Answer: 1

Explanation

Remote wipe allows an authorized administrator to erase data from a supported mobile device without physically possessing it. Organizations may use this capability when a company-owned device is lost, stolen, or otherwise considered a security risk. The effectiveness of a remote wipe depends on factors such as device connectivity and management enrollment. Technicians should follow the organization’s incident-response procedure before initiating the action because erasing a device can permanently remove information. Appropriate backups and documented authorization should be considered before performing a remote wipe.

Question 378

Which mobile management capability can prevent users from installing applications that are not approved by an organization?

1. MDM application restrictions
2. GPS tracking
3. NFC
4. Bluetooth

Correct Answer: 1

Explanation

Mobile Device Management platforms can enforce application restrictions on managed devices. Administrators may use these controls to prevent installation of unauthorized applications, require approved software, or restrict access to certain application categories. Such policies help reduce security risks associated with untrusted applications, excessive permissions, and data leakage. Technicians should verify that the device is properly enrolled and receiving the organization’s policy. If a legitimate application is blocked, the technician should follow the approved application-request process rather than bypassing the management control.

Question 379

Which backup method contains changes made since the previous backup of any type?

1. Full
2. Differential
3. Incremental
4. Archive-only

Correct Answer: 3

Explanation

An incremental backup contains data changed since the most recent backup, regardless of whether that previous backup was full or incremental. This generally makes each incremental backup smaller and faster than a full backup, but restoration can require the most recent full backup and every required incremental backup that follows it. If one incremental backup in the restoration chain is unavailable or corrupted, recovery may be affected. Technicians should understand the organization’s backup schedule and regularly verify backup integrity and restoration procedures.

Question 380

Which professional practice helps ensure that system changes can be traced and reviewed later?

1. Change management
2. Password sharing
3. Unapproved configuration
4. Informal access

Correct Answer: 1

Explanation

Change management provides a structured process for planning, approving, implementing, documenting, and reviewing changes to IT systems. It helps organizations understand what was changed, why the change was necessary, who authorized it, and what results occurred. This information can be valuable when troubleshooting a new problem that appears after a configuration change. Technicians should follow the organization’s change procedures rather than making undocumented modifications to production systems. Proper change records also support accountability, rollback planning, and more consistent technical operations.