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Question 81.

Which Windows feature lets an administrator control user account privileges?

1. User Account Control
2. Registry Editor
3. Task Scheduler
4. Resource Monitor

Correct Answer: 1

Explanation:

User Account Control, commonly called UAC, helps prevent unauthorized changes to Windows systems by requiring confirmation when an action needs elevated privileges. It is especially useful for limiting the impact of applications or users that attempt to perform administrative operations. UAC does not replace proper account permissions, but it adds an additional control layer around privileged actions. Registry Editor is used to modify Windows configuration data, Task Scheduler manages automated tasks, and Resource Monitor provides detailed performance information. Server administrators should configure privilege elevation carefully so routine users cannot freely make system-level changes.

Question 82.

Which Linux command changes the ownership of a file or directory?

1. chmod
2. touch
3. chown
4. grep

Correct Answer: 3

Explanation:

The chown command changes the owner and, when specified, the group associated with a Linux file or directory. Ownership is an important part of Linux access control because file permissions are evaluated in relation to the owner, group, and other users. The chmod command modifies permission bits, touch creates or updates file timestamps, and grep searches text for matching patterns. Administrators may use chown when deploying applications, correcting ownership after file transfers, or configuring service directories. Incorrect ownership can prevent applications from reading or writing resources they legitimately require.

Question 83.

Which Windows filesystem supports advanced permissions and journaling for server workloads?

1. FAT16
2. NTFS
3. exFAT
4. ReiserFS

Correct Answer: 2

Explanation:

NTFS is a Windows filesystem designed for robust storage management and supports features such as permissions, journaling, compression, quotas, and encryption-related capabilities. These features make it suitable for many Windows Server environments. FAT16 is an older filesystem with significant capacity limitations, while exFAT is commonly intended for removable storage and does not provide the same Windows server security feature set. ReiserFS is associated with Linux environments. When selecting or managing a Windows server filesystem, administrators should consider security requirements, compatibility, capacity, recovery capabilities, and application needs.

Question 84.

Which Linux command displays the current working directory path?

1. whoami
2. history
3. echo
4. pwd

Correct Answer: 4

Explanation:

The pwd command displays the absolute path of the directory in which the current shell session is operating. This is useful when administrators navigate through complex directory structures and need to confirm their exact location before creating, modifying, or removing files. The whoami command identifies the current user, history displays previously executed commands, and echo outputs specified text or variable values. Confirming the working directory is particularly important when performing administrative tasks because commands executed against the wrong directory can unintentionally affect unrelated files or system resources.

Question 85.

Which Windows feature can schedule a script to run automatically at a specified time?

1. Task Scheduler
2. Credential Manager
3. Disk Management
4. Computer Management

Correct Answer: 1

Explanation:

Task Scheduler allows Windows administrators to automate programs, scripts, and maintenance operations according to defined triggers. A task can be configured to run at a particular time, during startup, when a user logs on, or when another event occurs. Credential Manager stores authentication information, Disk Management handles storage configuration, and Computer Management provides access to several administrative utilities. Scheduled tasks are useful for recurring maintenance, reporting, cleanup, and automation. Administrators should configure task permissions and execution accounts carefully because scheduled scripts may operate with elevated privileges.

Question 86.

Which Linux command displays filesystem usage in a human-readable format?

1. ps
2. free
3. df -h
4. id

Correct Answer: 3

Explanation:

The df -h command displays filesystem space usage using human-readable units such as megabytes or gigabytes. It helps administrators determine how much capacity is currently used and available on mounted filesystems. The ps command displays process information, free reports memory usage, and id displays user and group identity information. Monitoring filesystem usage is important because a nearly full filesystem can cause applications to fail, prevent logs from being written, or interfere with operating-system functions. Administrators should monitor capacity trends rather than waiting until storage becomes completely exhausted.

Question 87.

Which Windows role provides centralized authentication for domain users?

1. Print Services
2. Active Directory Domain Services
3. Web Server role
4. File Server Resource Manager

Correct Answer: 2

Explanation:

Active Directory Domain Services, or AD DS, provides centralized identity and authentication services within a Windows domain environment. It stores information about users, computers, groups, and other directory objects and enables domain-based authentication. Print Services manages network printing, the Web Server role hosts web applications, and File Server Resource Manager provides tools for managing file-server storage. Centralized authentication allows administrators to manage accounts and access policies from a common directory infrastructure. Domain-based identity management can also support organizational policies such as group-based access and centralized configuration.

Question 88.

Which Linux utility can terminate a process by using its process identifier?

1. du
2. tar
3. mount
4. kill

Correct Answer: 4

Explanation:

The kill command sends a specified signal to a process identified by its process ID. Administrators commonly use it to request graceful termination of a process or, when necessary, send a stronger termination signal. The du command reports directory and file space usage, tar creates or extracts archives, and mount attaches filesystems to the directory hierarchy. Administrators should use process termination carefully, especially on production servers, because stopping an essential service or application abruptly can cause data loss or service disruption.

Question 89.

Which Windows utility provides detailed information about CPU, memory, disk, and network activity?

1. Resource Monitor
2. Character Map
3. Registry Backup
4. Disk Cleanup

Correct Answer: 1

Explanation:

Resource Monitor provides detailed real-time information about important system resources, including processor activity, memory usage, disk operations, and network activity. It can help administrators investigate performance problems by identifying processes associated with unusually high resource consumption. Character Map provides access to special characters, Registry Backup concerns configuration recovery, and Disk Cleanup removes unnecessary files. Resource Monitor is particularly useful when the broader information in Task Manager is not sufficient for troubleshooting. Administrators can use its detailed views to correlate processes with specific resource bottlenecks.

Question 90.

Which Linux command searches text for matching patterns within files?

1. mkdir
2. grep
3. reboot
4. passwd

Correct Answer: 2

Explanation:

The grep command searches input or files for lines matching a specified pattern. It is widely used by Linux administrators when examining configuration files, application output, and system records. For example, an administrator can search a large log for entries containing a particular error or service name. The mkdir command creates directories, reboot restarts the system, and passwd changes account passwords. Because server logs can contain thousands of entries, pattern searching allows administrators to locate relevant information efficiently without manually reviewing every line.

Question 91.

Which Windows feature helps limit how much disk space a user can consume?

1. Windows Defender
2. Storage Spaces
3. NTFS disk quota
4. BitLocker recovery

Correct Answer: 3

Explanation:

An NTFS disk quota allows administrators to restrict the amount of storage that individual users can consume on supported volumes. This helps prevent one account from exhausting available capacity on a shared server. Windows Defender provides security protection, Storage Spaces manages pooled storage, and BitLocker recovery relates to encrypted-drive recovery. Quotas can be useful on file servers and multi-user systems where storage consumption needs to be controlled. Administrators can establish limits and monitor usage so that users receive appropriate warnings before reaching configured thresholds.

Question 92.

Which Linux component records kernel and service messages for later troubleshooting?

1. system journal
2. Shell alias file
3. User profile cache
4. Package mirror list

Correct Answer: 1

Explanation:

The system journal records operating-system and service messages on Linux systems that use the journaling infrastructure associated with systemd. Administrators can examine these records when investigating service failures, startup problems, authentication events, or other system behavior. A shell alias file stores command shortcuts, a user profile cache contains user-environment information, and a package mirror list identifies software repositories. Centralized system logging provides valuable chronological information because administrators can correlate messages with the time an incident occurred and determine whether multiple components reported related events.

Question 93.

Which Windows technology provides encrypted storage protection for individual files or folders?

1. Windows Firewall
2. Encrypting File System
3. Windows Sandbox
4. Credential Guard

Correct Answer: 2

Explanation:

Encrypting File System, or EFS, provides file-level encryption on supported Windows filesystems. It protects selected files and folders rather than requiring an entire volume to be encrypted. This can be useful when specific sensitive information requires additional protection. Windows Firewall controls network traffic, Windows Sandbox provides an isolated environment for applications, and Credential Guard protects certain credential information. Administrators using file-level encryption must consider certificate and key management because encrypted files depend on appropriate cryptographic credentials for authorized access and recovery.

Question 94.

Which Linux command displays the amount of memory currently available to the system?

1. lsblk
2. ip
3. free
4. uname

Correct Answer: 3

Explanation:

The free command displays information about system memory, including used, free, shared, buffered, and available memory values. Administrators can use it when investigating applications that appear to consume excessive memory or when determining whether a server is experiencing memory pressure. The lsblk command displays block-device information, ip manages and displays network configuration, and uname reports system and kernel information. Memory measurements should be interpreted alongside workload behavior because Linux may intentionally use available memory for caching rather than leaving it completely unused.

Question 95.

Which Windows component manages hardware drivers and device status?

1. Device Manager
2. Services Console
3. Event Viewer
4. Local Security Policy

Correct Answer: 1

Explanation:

Device Manager provides an administrative interface for viewing installed hardware devices, their drivers, and their current status. Administrators can use it to identify devices with driver problems, inspect hardware properties, update drivers, or disable specific devices when required. The Services Console manages software services, Event Viewer provides access to recorded events, and Local Security Policy controls selected security settings. Device Manager is especially useful after installing new hardware or when Windows reports that a device is unavailable, malfunctioning, or missing an appropriate driver.

Question 96.

Which Linux command changes permissions assigned to a file?

1. locate
2. chmod
3. hostname
4. sleep

Correct Answer: 2

Explanation:

The chmod command modifies Linux file and directory permission settings. Administrators can use it to control whether the owner, group members, and other users may read, write, or execute an object. Permission changes are important for protecting configuration files, application data, scripts, and other server resources. The locate command searches for files using an indexed database, hostname displays or changes the system hostname, and sleep pauses command execution for a specified period. Administrators should apply only the permissions required by the workload to reduce unnecessary access.

Question 97.

Which technology allows multiple physical storage devices to appear as one managed storage pool?

1. Storage Spaces
2. Screen Mirroring
3. Printer Pooling
4. Desktop Themes

Correct Answer: 1

Explanation:

Storage Spaces is a Windows technology that allows physical disks to be grouped into storage pools from which virtual storage spaces can be created. This provides administrators with flexible storage management and can support resiliency configurations depending on the design. Screen Mirroring concerns display output, Printer Pooling distributes printing workloads, and Desktop Themes control the user interface appearance. Storage Spaces can simplify storage expansion because additional physical disks can be incorporated into an existing pool. Administrators should select an appropriate resiliency and capacity configuration based on workload requirements.

Question 98.

Which Linux command displays information about block storage devices?

1. ss
2. lsblk
3. alias
4. env

Correct Answer: 2

Explanation:

The lsblk command displays information about block devices such as disks and partitions. It can show device names, sizes, types, mount relationships, and hierarchical storage structures. This makes it useful when administrators need to identify available disks or understand how partitions and storage devices are organized. The ss command displays socket information, alias manages shell command shortcuts, and env displays environment variables. Before modifying storage, administrators can use block-device information to verify the correct target and reduce the risk of accidentally changing an unrelated disk.

Question 99.

Which Windows security feature isolates sensitive credential information from ordinary processes?

1. Credential Guard
2. Disk Defragmenter
3. Print Management
4. Windows Search

Correct Answer: 1

Explanation:

Credential Guard uses virtualization-based security mechanisms to help isolate certain credential information from the normal operating system environment. Its purpose is to make credential-related secrets more difficult for malicious software or unauthorized processes to access. Disk Defragmenter concerns storage optimization, Print Management administers printing resources, and Windows Search indexes content for searching. Credential protection is particularly important on servers because compromised administrative credentials can provide attackers with extensive access. Security administrators should consider Credential Guard alongside account controls, patching, application security, and other defense mechanisms.

Question 100.

Which Linux command displays the groups associated with the current user account?

1. date
2. hostnamectl
3. id
4. clear

Correct Answer: 3

Explanation:

The id command displays identity information for a Linux user, including the user ID, primary group ID, and supplementary group memberships. This is useful when troubleshooting permissions because group membership can determine whether a user is authorized to access particular files or resources. The date command displays or manages system date information, hostnamectl manages hostname-related settings, and clear removes visible terminal content. Checking group membership can help administrators determine why a user can or cannot access a resource without immediately changing permissions or ownership settings.