Updated Feb 13, 2026 Test Engine to Practice Test for 100-140 Valid and Updated Dumps [Q250-Q272]

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Updated Feb 13, 2026 Test Engine to Practice Test for 100-140 Valid and Updated Dumps

Exam Questions for 100-140 Updated Versions With Test Engine

Cisco 100-140 Exam Syllabus Topics:

Topic	Details
Topic 1	Operating System and Application Issues: This part targets an Operating System Support Specialist and addresses resolving Windows and macOS issues, such as display settings, updates, permissions, power management, and data backup using cloud tools. It covers troubleshooting mobile device problems on iOS and Android operating systems and provides an understanding of virtualization and cloud concepts including major providers and virtual machines. This section also covers resolving common application issues like installation and security concerns.
Topic 2	Job Roles: This section evaluates an IT Support Technician’s ability to use remote access tools (such as Remote Desktop, Cisco Webex, and TeamViewer) to assist users and perform support activities. It also includes utilizing troubleshooting tools and resources, such as AI research, search engines, technical forums, and knowledge bases, while being aware of ethical, privacy, and security considerations related to AI and other technologies.
Topic 3	Common Threats and Prevention: This domain measures the knowledge of an IT Security Support Technician and covers recognizing end-user security threats including phishing, malware, and unauthorized access attempts. It emphasizes basic investigation steps, helping users run malware scans, promoting strong password practices, understanding social engineering tactics targeting help desk roles, and the importance of company policies and confidentiality guidelines to protect sensitive data.

NO.250 While troubleshooting a network connectivity issue, an IT support technician needs to explain to a user how to identify which applications are currently using their network. Which tab in the Windows Task Manager should the user be instructed to check?

Performance

Networking

Processes

Users

NO.251 An IT manager is evaluating the effectiveness of the current help desk operations. Which KPI should be prioritized to measure the efficiency of the help desk team in handling incoming support tickets?

Number of tickets closed by first contact

Number of training sessions attended by support staff

Annual customer satisfaction survey results

Monthly IT staff satisfaction ratings

NO.252 A user reports they cannot access the company’s internal website hosted on an intranet server.
You suspect an issue with Active Directory affecting their access.
What should you verify first in Active
Directory?

The DHCP lease associated with the user’s workstation

The replication health between Domain Controllers

The user’s account group policies

The firewall settings on the user’s computer

NO.253 A macOS user is experiencing issues with internet connectivity and needs to verify their IP address configuration.
Which command should the IT support technician recommend to the user to execute in the Terminal to display all network configuration details?

ifconfig -a

ifconfig up

ifconfig down

ifconfig renew

NO.254 What is the most important security measure to implement when using VNC to provide remote support to an end user’s device?

Ensure the VNC session is configured to allow file transfers by default

Use a strong, unique password for each VNC session and ensure it is encrypted

Set the VNC viewer to fullscreen mode to better observe the user’s screen

Allow the user to control the VNC session to maintain their autonomy

NO.255 What is an essential security practice for a technician using Cisco Webex to provide remote support?

Use high-quality video settings to enhance clarity

Ensure all session data is encrypted

Record all sessions for future reference without informing the user

Allow multiple participants to join the support session for efficiency

NO.256 During a routine network check, a technician notices that several devices are only using link-local IPv6 addresses when trying to communicate externally, which fails.
What is the most likely cause?

The router advertisements are disabled on the network

The devices are set to use static IPv6 addresses only

The firewall is blocking external IPv6 traffic

The DNS server is not resolving IPv6 addresses

NO.257 What is a potential limitation when using generative AI in troubleshooting compared to predictive AI?

Generative AI can only predict outcomes based on previously encountered scenarios

Generative AI might produce novel solutions that, while innovative, may not always align with existing system protocols or tested solutions

Predictive AI is generally less accurate in forecasting than generative AI due to its reliance on historical data only

Generative AI is unable to assist in any capacity with data analysis or predictions

NO.258 A graphic designer needs to ensure that their DVI connection supports the highest possible resolution for detailed image work.
Which DVI cable type should the IT support technician advise them to use for connecting their monitor to ensure maximum video quality?

DVI-A

DVI-D dual link

DVI-I single link

DVI-D single link

NO.259 During a TeamViewer session, how should a technician handle a situation where they need to access a user’s sensitive files to troubleshoot an issue?

Proceed to access the files without informing the user to maintain the flow of the session

Inform the user and request permission to access the specific files needed for troubleshooting

Avoid accessing the files and attempt to solve the issue without direct file access

Record the session without consent to document the necessity of accessing sensitive files

NO.260 After troubleshooting a recurring issue with a client’s VPN connection, which method should be used to document the troubleshooting steps effectively?

List only the final step that resolved the issue

Provide a detailed chronological list of all actions taken and their results

Document only the unsuccessful steps to avoid future repetition

Record the steps informally in shorthand for brevity

NO.261 A printer connected to a busy office network frequently has issues with the print queue becoming full and not processing further documents.
What is the best preventive strategy?

Schedule regular automatic restarts of the print spooler during off-hours

Upgrade the printer to a model with a faster processor

Assign a dedicated print server

Restrict printer access to fewer users

NO.262 A user is adding an additional network interface card (NIC) to their desktop computer for enhanced networking capabilities. The NIC is PCIe based.
Before installing the NIC, what is crucial for the technician to check regarding the PCIe slots on the motherboard?

The speed of the PCIe slots

The size of the PCIe slots

The number of free PCIe slots

The color of the PCIe slots

NO.263 A customer reports that their desktop computer does not power on. You ask the customer to check if the power cable is securely plugged into both the power supply unit (PSU) and the wall outlet. The customer confirms that the connections seem tight.
What is the next best step in troubleshooting this issue?

Replace the computer’s motherboard

Check if the power outlet is functional by using another device

Install a new CPU

Upgrade the computer’s PSU

NO.264 During network troubleshooting, a technician needs to determine why a laptop connects to the network via WLAN but not when using a LAN cable.
What should be examined first?

Ensure the laptop’s network adapter is enabled and supports Ethernet

Replace the WLAN router as it might be causing interference

Update the laptop’s operating system to the latest version

Check the network credentials stored on the laptop

NO.265 What should a technician be aware of when relying on AI to diagnose software issues?

AI can replace traditional diagnostic tools entirely

AI can analyze and suggest solutions based on large data sets but may not understand context

AI consistently outperforms human technicians in complex problem-solving scenarios

AI eliminates the need for manual review of its suggested solutions

NO.266 What is a key reason why help desk technicians are often targets of social engineering attacks?

They have limited access to technical systems and data

They are typically new employees with less experience

They are trained to be helpful and may overlook security protocols

They work in isolated environments without support

NO.267 A technician is replacing the toner cartridge in a printer and notices that the printer continues to display a low toner message.
What should the technician do next to resolve this issue?

Reinstall the old toner cartridge

Check if the toner cartridge is compatible and properly seated

Update the printer’s network settings

Clear the printer’s job queue

NO.268 A user is preparing to upgrade their Linux system and needs to check their current operating system version to ensure compatibility with new software.
Which command should the technician advise the user to execute?

uname -r

cat /etc/*-release

lsb_release -a

dmesg | grep Linux

NO.269 While at work, you receive a phone call from someone claiming to be from your company’s IT department. They ask for your password to troubleshoot a system issue allegedly affecting several team members.
What is the most appropriate action to take?

Provide the password to help resolve the system issue quickly

Tell the caller that you will call back through the official IT support channel

Ask the caller for their employee ID and reason for the call to verify their identity

Hang up and ignore the request since it seems suspicious

NO.270 A user is setting up a workstation that requires connecting multiple monitors using a single DisplayPort output from their computer.
What feature of DisplayPort should the IT support technician advise the user to ensure the graphics card supports to facilitate this setup?

Audio Return Channel (ARC)

DisplayPort Multi-Stream Transport (MST)

High-bandwidth Digital Content Protection (HDCP)

High-Definition Multimedia Interface (HDMI)

NO.271 Mia is trying to use the multifunction device to scan documents to her email but reports that the scans are not being received.
What should you check first to troubleshoot this issue?

Check if Mia’s email address is correctly configured in the MFD’s settings

Increase the storage quota on Mia’s email to ensure she can receive large files

Verify the MFD is connected to the local network

Replace the MFD’s scanner glass

NO.272 A company wants to optimize their server hardware by running multiple operating systems simultaneously on a single physical server.
Which technology would best achieve this?

Hypervisor

Docker containers

VPN

Load balancer