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Question 121

Which Windows command can be used to display the current computer name?

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

Correct Answer: 2

Explanation

The hostname command displays the name assigned to the Windows computer. This information can be useful when identifying a workstation during remote support, checking network configuration, or confirming that a device is associated with the expected system name. The command is simple and can be executed from a standard command prompt. Technicians should distinguish the hostname from the IP address because the hostname identifies the computer logically, while the IP address identifies its network location for communication.

Question 122

A technician needs to repair Windows boot configuration data after a startup problem. Which command-line utility may be useful from the recovery environment?

1. chkdsk
2. ping
3. bootrec
4. nslookup

Correct Answer: 3

Explanation

The bootrec utility is available through supported Windows recovery environments and can help troubleshoot certain boot-related problems. Depending on the situation and Windows version, it can work with boot configuration information and other startup structures. Technicians should first determine the nature of the boot failure before running repair commands because different startup problems require different approaches. If storage corruption is suspected, additional tools such as chkdsk may also be relevant. Important data should be protected whenever possible before performing recovery operations.

Question 123

Which Windows feature allows a technician to restore a system image to a computer after a serious operating system failure?

1. Clipboard History
2. System Image Recovery
3. Disk Cleanup
4. Task Scheduler

Correct Answer: 2

Explanation

System Image Recovery can restore a previously created system image containing the operating system, applications, settings, and other supported data. It is useful when a computer has experienced a major operating system failure and a suitable image backup is available. This differs from System Restore, which primarily rolls back selected system configuration changes. Technicians should verify that the image is valid and that the recovery environment can access it before beginning restoration. Regularly testing recovery procedures helps confirm that backups are usable.

Question 124

A Windows computer is experiencing frequent application crashes after a recent update. Which troubleshooting step should be performed first?

1. Replace the motherboard
2. Remove every user account
3. Review the recent update and relevant error information
4. Format the system drive

Correct Answer: 3

Explanation

When application crashes begin immediately after a recent update, the technician should investigate the timing and determine whether the update is associated with the problem. Event Viewer, application logs, update history, and vendor documentation can provide useful information. If evidence confirms that an update caused the issue, an approved rollback or corrective update may be considered. Formatting the drive or replacing hardware would be unnecessarily disruptive without evidence of a hardware problem. Troubleshooting should proceed from the simplest likely cause.

Question 125

Which Linux command is commonly used to view the contents of a file one screen at a time?

1. chmod
2. less
3. passwd
4. mkdir

Correct Answer: 2

Explanation

The less command allows technicians to view text files interactively, displaying the content one screen at a time. It is particularly useful for large configuration files and log files because users can scroll forward and backward without loading the entire file into a simple terminal display. Search functionality is also available within the viewer. Technicians often use less when examining Linux logs during troubleshooting. It does not modify the file merely by displaying its contents, making it safer for routine inspection.

Question 126

Which Linux command is commonly used to display free and used memory?

1. df
2. du
3. free
4. mount

Correct Answer: 3

Explanation

The free command displays information about memory usage, including available and used physical memory and, depending on the system, swap information. It can help technicians investigate performance problems related to memory pressure. The df command instead reports available disk space for file systems, while du reports disk usage associated with files and directories. When troubleshooting Linux performance, memory information should be considered alongside CPU, process, disk, and application behavior rather than being evaluated in isolation.

Question 127

A technician needs to determine how much disk space a particular Linux directory is consuming. Which command is appropriate?

1. du
2. who
3. ps
4. uname

Correct Answer: 1

Explanation

The du command reports disk usage associated with files and directories. It can help identify which directories are consuming significant amounts of storage when a Linux system is running low on disk space. Options can provide summarized or human-readable output, making large directory structures easier to investigate. The df command provides file-system-level free space, while du focuses on usage by files and directories. Technicians should identify unnecessary data before deleting anything from a production system.

Question 128

Which Linux permission allows a user to modify the contents of a file?

1. Read
2. Write
3. Execute
4. Traverse

Correct Answer: 2

Explanation

The write permission allows an authorized user to modify the contents of a file. Linux commonly uses read, write, and execute permissions for the owner, group, and other users. A technician should understand that directory permissions have related but distinct effects, so file and directory access should not be interpreted identically. Excessive write permissions can create security risks because unauthorized users may alter important files. Permissions should therefore be configured according to the user’s actual responsibilities and the principle of least privilege.

Question 129

Which macOS feature provides a secure graphical method for installing applications distributed through Apple’s software ecosystem?

1. Activity Monitor
2. Console
3. App Store
4. Disk Utility

Correct Answer: 3

Explanation

The App Store provides a centralized method for obtaining supported applications from Apple’s software ecosystem. Applications distributed through it can be associated with Apple’s security and distribution mechanisms. Technicians should still verify application requirements and organizational policies before installation. Software obtained from unknown websites may introduce additional security risks. The App Store is different from Activity Monitor, which monitors processes, and Disk Utility, which manages storage devices and volumes.

Question 130

A user reports that a Mac application is frozen and will not respond to normal commands. Which utility can help identify and terminate the process?

1. Migration Assistant
2. Keychain Access
3. Activity Monitor
4. Time Machine

Correct Answer: 3

Explanation

Activity Monitor can display running applications and processes on macOS and can be used to identify an unresponsive process. After confirming the affected application, a technician can use the available process controls to quit or force quit it when appropriate. Unsaved work may be lost when an application is forcefully terminated, so normal application closing should be attempted first when possible. If repeated crashes occur, the technician should investigate application updates, configuration, system resources, and relevant logs.

Question 131

Which Windows feature can isolate a potentially untrusted application environment from the main operating system on supported systems?

1. Windows Sandbox
2. Disk Cleanup
3. File History
4. Print Management

Correct Answer: 1

Explanation

Windows Sandbox provides a temporary isolated desktop environment on supported Windows editions. It can be useful for testing potentially untrusted applications or files without directly modifying the main operating system environment. The sandbox is disposable, so changes made inside it are generally removed when the environment closes. Technicians should still follow organizational security procedures because isolation does not mean that every threat is harmless. Sandbox availability depends on Windows edition, hardware capabilities, and system configuration.

Question 132

A technician needs to identify which Windows user account is currently logged in. Which command is appropriate?

1. route
2. whoami
3. format
4. tracert

Correct Answer: 2

Explanation

The whoami command identifies the security account associated with the current Windows session. It can be particularly useful on domain-connected computers where technicians need to confirm the username and domain under which commands are being executed. This information helps when troubleshooting permission problems, network-resource access, or policy application. The command does not change account settings and can be used as a quick verification step before performing administrative troubleshooting tasks.

Question 133

Which Windows command can display the current DNS resolver cache?

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

Correct Answer: 1

Explanation

The ipconfig /displaydns command displays the contents of the local DNS resolver cache. This can help technicians determine whether a computer has recently resolved a hostname and what information may currently be cached. The cache can be useful when investigating inconsistent name resolution or suspected stale DNS information. If incorrect cached records are contributing to a problem, ipconfig /flushdns can clear the local cache. DNS server configuration should also be checked if incorrect results continue after the cache is cleared.

Question 134

Which security practice helps protect accounts when users have reused the same password across multiple services?

1. Disable account auditing
2. Use unique passwords for different services
3. Share passwords with administrators
4. Store passwords in plain text

Correct Answer: 2

Explanation

Using unique passwords for different services limits the impact of a compromised credential. If the same password is reused across several accounts and one service is breached, attackers may attempt the stolen password against other services. A password manager can help users generate and securely store unique passwords. Multifactor authentication provides another layer of protection. Technicians should encourage secure password practices and should never store customer or employee passwords in plain text within support documentation.

Question 135

Which attack involves an attacker pretending to be a trusted person or organization to obtain sensitive information?

1. Spoofing
2. Disk flooding
3. Defragmentation
4. Data compression

Correct Answer: 1

Explanation

Spoofing involves disguising an identity or source to appear trustworthy. Attackers may spoof email addresses, websites, phone numbers, network identities, or other information to deceive users or systems. The exact technique varies depending on the target and technology. Technicians should verify unexpected requests independently rather than trusting the apparent identity of the sender. Security awareness, authentication controls, email protections, and careful verification procedures can reduce the effectiveness of spoofing attempts.

Question 136

A technician is asked to dispose of a hard drive containing confidential company information. Which action provides the strongest assurance that the data cannot be recovered?

1. Rename the files
2. Move the files to another folder
3. Empty the recycle bin
4. Physically destroy the drive according to approved policy

Correct Answer: 4

Explanation

Physical destruction can provide strong assurance that data stored on a drive cannot be recovered when performed according to an approved media-destruction procedure. Simply deleting files or emptying the recycle bin does not necessarily remove the underlying data. The appropriate destruction method depends on the storage technology and organizational requirements. Technicians should document disposal and follow applicable security policies, privacy requirements, and chain-of-custody procedures. Certified destruction services may be used when organizations require formal verification.

Question 137

Which Windows tool can be used to identify whether a service is stopped when an application depends on it?

1. Paint
2. Services
3. Calculator
4. Character Map

Correct Answer: 2

Explanation

The Services console allows technicians to view the status and startup configuration of Windows services. If an application depends on a service that has stopped, the technician can inspect the service and determine whether it is configured to start automatically or manually. Service dependencies and related event logs may provide additional information if the service fails to start. Technicians should avoid changing service settings without understanding their purpose because disabling required services can cause additional application or operating system problems.

Question 138

Which Windows command can display the route packets take to a remote host?

1. ping
2. ipconfig
3. tracert
4. hostname

Correct Answer: 3

Explanation

The tracert command identifies network hops between a Windows computer and a remote destination. It can help technicians locate where connectivity or latency problems may occur along a network path. Each responding hop generally represents a router or Layer 3 device. Some devices may not respond to trace requests, so missing responses do not automatically prove that the device or path is broken. Technicians should compare tracert results with other tests such as ping and application-specific connectivity checks.

Question 139

A user reports that Windows cannot install a required update because insufficient storage space is available. What should the technician check first?

1. Screen resolution
2. Available disk space
3. Keyboard layout
4. Mouse sensitivity

Correct Answer: 2

Explanation

Insufficient storage can prevent Windows updates from downloading, staging, or installing successfully. The technician should check available disk space on the relevant system volume and identify safe opportunities to reclaim storage. Temporary files, unnecessary applications, and other nonessential data may be reviewed according to organizational policy. Important user data should not be deleted simply to create space. After sufficient storage is available, the technician can retry the update and review update history or logs if the installation continues to fail.

Question 140

Which security control can prevent a user from repeatedly guessing passwords against an account?

1. Screen brightness
2. Account lockout policy
3. File compression
4. Disk defragmentation

Correct Answer: 2

Explanation

An account lockout policy can temporarily prevent authentication after a configured number of failed attempts. This reduces the effectiveness of repeated password-guessing attacks against an account. Organizations typically configure a failed-attempt threshold and lockout duration based on their security requirements. Technicians should balance security with operational needs because overly aggressive settings can cause legitimate users to become locked out. Additional protections such as multifactor authentication and strong password policies can provide further defense against credential-based attacks.