[Jun-2026] 100-140 Exam Questions and Valid 100-140 Dumps PDF
100-140 Brain Dump: A Study Guide with Tips & Tricks for passing Exam
Cisco 100-140 Exam Syllabus Topics:
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NEW QUESTION # 26
A technician troubleshooting a fax machine finds that it can send faxes but cannot receive them.
What should be checked to resolve this issue?
- A. The paper supply in the fax machine
- B. The fax machine's sending unit
- C. The toner levels in the fax machine
- D. The fax machine's receiving settings
Answer: D
Explanation:
Correct Answer. C. The fax machine's receiving settings If a fax machine can send but not receive faxes, it suggests that the issue may lie with settings specific to receiving faxes, such as incorrect mode or reception settings.
Option A is incorrect. The sending unit functioning correctly does not impact receiving capabilities.
Option B is incorrect. A lack of paper would prevent printing but not the machine's ability to receive faxes into memory.
Option D is incorrect. Toner levels would affect the printout quality and output but not the reception of incoming faxes.
NEW QUESTION # 27
What should a technician do if sensitive information appears on the user's screen during a Cisco Webex support session?
- A. Advise the user to close or minimize the window containing the sensitive information
- B. Immediately end the session to protect confidentiality
- C. Take control of the user's system to close the sensitive application themselves
- D. Continue the session and ignore the sensitive information
Answer: A
Explanation:
Correct Answer. B. Advise the user to close or minimize the window containing the sensitive information Advising the user to handle sensitive information appropriately maintains the integrity of the support session while protecting the user's privacy and data security.
Option A is incorrect because ignoring visible sensitive information can breach confidentiality obligations.
Option C is incorrect because ending the session abruptly may not be necessary and could interrupt important support tasks.
Option D is incorrect as taking control to close applications could infringe on user privacy and trust.
NEW QUESTION # 28
During an audit, a technician discovers that several devices in an office are set with static IP addresses that do not fall within the defined subnet for their network segment. What is the most likely impact of this misconfiguration?
- A. The devices will require manual updates to antivirus software
- B. The devices will automatically adjust their IP addresses
- C. The devices will not be able to communicate with others outside their assigned range
- D. The devices will experience faster internet speeds
Answer: C
Explanation:
Correct Answer. B. The devices will not be able to communicate with others outside their assigned range If devices are configured with IP addresses outside the intended subnet, they will fail to communicate effectively with devices on other subnets and potentially even with local devices, depending on the network configuration.
Option A is incorrect. Incorrect IP configuration would not lead to faster internet speeds.
Option C is incorrect. Static IP addresses do not adjust automatically; they need manual reconfiguration to correct the subnet mismatch.
Option D is incorrect. The ability to update antivirus software would not be directly affected by IP address misconfiguration unless it impacts overall network access.
NEW QUESTION # 29
During startup, a user notices that their computer is running slower than usual and suspects that unnecessary programs are loading at boot.
What should the technician recommend to manage startup programs effectively?
- A. Boot into Safe Mode and disable startup programs
- B. Increase the computer's RAM
- C. Run a full system antivirus scan
- D. Format the hard drive and reinstall Windows
Answer: A
Explanation:
Correct Answer. A. Boot into Safe Mode and disable startup programs Booting into Safe Mode provides a safe environment to disable unnecessary startup programs through the System Configuration utility (msconfig), which can help improve boot times and overall system performance.
Option B is incorrect because formatting and reinstalling Windows is an extreme measure that should only be considered when all other options have failed Option C is incorrect as an antivirus scan, while useful for detecting malware, does not directly assist with managing startup programs Option D is incorrect because adding RAM, although beneficial for overall performance, does not resolve issues with unnecessary programs loading at startup
NEW QUESTION # 30
A printer frequently experiences paper jams despite using the recommended paper type. What is the first step a technician should take to troubleshoot this issue?
- A. Modify the printer's paper size settings
- B. Clean the paper feed rollers
- C. Replace the fuser assembly
- D. Update the printer's firmware
Answer: B
Explanation:
Correct Answer. B. Clean the paper feed rollers Dirty or worn paper feed rollers are a common cause of paper jams. Cleaning the rollers often resolves issues with paper not being fed correctly into the printer.
Option A is incorrect. The fuser assembly is involved in bonding toner to paper and is not typically related to paper feeding issues.
Option C is incorrect. Firmware updates generally address software issues, not mechanical feeding problems unless explicitly specified.
Option D is incorrect. Incorrect paper size settings can cause errors, but would not typically result in frequent jams unless the settings drastically mismatch the paper loaded.
NEW QUESTION # 31
What is an important consideration for a technician when using technical forums to assist in resolving a network configuration error?
- A. Focus on solutions that suggest the most complex fixes to ensure comprehensive coverage of the problem
- B. Verify any solutions found on forums with established best practices or official documentation before implementation
- C. Trust all highly upvoted answers as they are vetted by the community
- D. Use technical forums as the sole source for troubleshooting complex network issues
Answer: B
Explanation:
Correct Answer. C. Verify any solutions found on forums with established best practices or official documentation before implementation Confirming that solutions align with recognized best practices and official documentation ensures that fixes are both safe and effective, mitigating the risk of further complications.
Option A is incorrect because community upvotes, while indicative of community support, do not guarantee the technical correctness or safety of a solution.
Option B is incorrect as relying solely on forums can lead to incomplete or biased information; forums should be part of a broader research strategy.
Option D is incorrect because complexity does not necessarily equate to appropriateness or effectiveness of a solution.
NEW QUESTION # 32
A user's Windows 10 PC is experiencing frequent system crashes and blue screen errors. The user needs to perform diagnostic tests to identify the issue. What should the technician instruct the user to do first?
- A. Reinstall the operating system
- B. Replace the PC's hard drive
- C. Update the PC's BIOS
- D. Boot the PC into Safe Mode
Answer: D
Explanation:
Correct Answer. B. Boot the PC into Safe Mode Booting into Safe Mode is an effective first step for troubleshooting frequent crashes and errors as it loads Windows with a minimal set of drivers and software, allowing the user to determine if the issue is software-related.
Option A is incorrect because reinstalling the operating system is too drastic for an initial troubleshooting step Option C is incorrect because replacing hardware components should only be considered after software causes have been ruled out Option D is incorrect because a BIOS update, while important, should not be performed as a first step in troubleshooting system stability issues
NEW QUESTION # 33
Which characteristic of an email should raise suspicion and suggest it might be a phishing attempt?
- A. High-quality branding similar to the legitimate source
- B. A formal greeting
- C. Poor grammar and spelling errors
- D. An offer that includes a standard discount on products
Answer: C
Explanation:
Correct Answer. C. Poor grammar and spelling errors Phishing emails often contain poor grammar and spelling errors because they may be hastily put together by attackers who do not speak the language fluently or who overlook details in their rush to send out mass emails.
Option A is incorrect because a formal greeting can be a normal part of legitimate emails.
Option B is incorrect because high-quality branding can also be replicated by sophisticated phishers to appear legitimate.
Option D is incorrect because while offers can be used in phishing, a standard discount by itself is not a typical phishing indicator without other suspicious elements.
NEW QUESTION # 34
During a presentation in a well-lit room, a user struggles with screen glare on their MacOS device. Which feature should they adjust to minimize glare without compromising display quality?
- A. Turn off True Tone
- B. Adjust the brightness manually
- C. Use an anti-glare screen protector
- D. Enable Night Shift
Answer: B
Explanation:
Correct Answer. C. Adjust the brightness manually Manually adjusting the brightness can help balance visibility against glare in different lighting conditions, allowing the user to optimize the display based on the specific environment of the room.
Option A is incorrect because turning off True Tone affects color accuracy and may not effectively reduce glare Option B is incorrect as Night Shift modifies the color temperature primarily for evening use and is not intended for managing glare Option D is incorrect although an anti-glare screen protector is effective, it is a physical addition and not a setting adjustment on the MacOS
NEW QUESTION # 35
What is phishing?
- A. Exploiting a vulnerability in software
- B. Sending deceptive emails to obtain sensitive information
- C. Redirecting internet traffic to malicious sites
- D. Infecting a system with a virus
Answer: B
NEW QUESTION # 36
When configuring a new employee's access in AWS IAM, what is a best practice for ensuring they only have the necessary permissions to fulfill their job responsibilities?
- A. Always use default IAM policies
- B. Use managed policies to assign permissions
- C. Assign permissions directly to individual user accounts
- D. Grant full administrative privileges to ensure no access barriers
Answer: B
Explanation:
Using managed policies is a best practice for assigning permissions in AWS IAM. Managed policies are maintained by AWS and are designed to provide permissions that align with common job functions, which helps in applying the principle of least privilege effectively.
Option A is incorrect because granting full administrative privileges can lead to excessive permissions beyond what is necessary for job responsibilities.
Option C is incorrect because assigning permissions directly to users can lead to complicated and potentially insecure configurations. It is better to assign permissions to roles or groups and then associate users with these roles or groups.
Option D is incorrect because relying solely on default IAM policies may not adequately match the specific security requirements of the organization or the principle of least privilege.
NEW QUESTION # 37
A user is experiencing audio issues during virtual meetings using a collaboration app on their mobile device. They can see video but cannot hear any sound.
What should they check first to troubleshoot this issue?
- A. Update the device's operating system
- B. Check the Wi-Fi signal strength
- C. Verify that the device's audio settings are not muted
- D. Delete and reinstall the collaboration app
Answer: C
Explanation:
Correct Answer. A. Verify that the device's audio settings are not muted Ensuring that the audio settings on the device are correctly configured and not muted is a simple and essential first check that can resolve common audio issues in collaboration apps.
Option B is incorrect because deleting and reinstalling the app is more disruptive and should be considered only after simpler settings have been checked.
Option C is incorrect as an operating system update, while important, is less likely to resolve an immediate audio issue unless it is known to fix a specific bug affecting audio.
Option D is incorrect because Wi-Fi connectivity typically affects all network-related functions, not just audio.
NEW QUESTION # 38
A user needs to monitor the disk usage and free space of their Linux server regularly. Which command should the IT support technician suggest for detailed disk usage statistics?
- A. du -sh *
- B. mount
- C. top
- D. df -h
Answer: D
Explanation:
Correct Answer. C. df -h The df -h command (disk free) provides concise information about each mounted filesystem, including total space, used space, free space, and mount points, all formatted in human-readable form (e.g., GB, MB).
Option A is incorrect because top primarily monitors CPU and memory usage, not disk space.
Option B is incorrect because du -sh * shows the disk usage of files and directories in the current directory, which is useful but not as comprehensive for checking all disk space on the server.
Option D is incorrect because mount displays mounted filesystems, not their disk usage statistics.
NEW QUESTION # 39
A user is setting up a new Mac and wants to ensure all their personal settings and data from their old Mac are transferred.
How should they use iCloud to facilitate this process?
- A. Copy the hard drive from the old Mac to iCloud
- B. Use Migration Assistant with an external hard drive instead of iCloud
- C. Sync all data to iCloud from the old Mac, then log in with the same Apple ID on the new Mac
- D. Manually transfer files via AirDrop to the new Mac
Answer: C
Explanation:
Correct Answer. A. Sync all data to iCloud from the old Mac, then log in with the same Apple ID on the new Mac Syncing all personal settings and data to iCloud from the old Mac and then logging in with the same Apple ID on the new Mac ensures that all iCloud-synced data, including settings, documents, and apps, are automatically available on the new device.
Option B is incorrect because copying an entire hard drive to iCloud is not feasible due to storage limitations and is not supported by iCloud's intended use Option C is incorrect as AirDrop is designed for transferring files and does not sync settings or system preferences Option D is incorrect because using Migration Assistant with an external drive, while effective, does not utilize iCloud's cloud-based capabilities
NEW QUESTION # 40
A network technician is configuring a newly installed router that needs to interface between two subnets. During testing, devices on Subnet A can connect to the router but not to any devices on Subnet
- A. That the firewall on the router allows traffic between the two subnets
- B. That the router is configured to use DHCP for IP address assignment
- C. That all cables between the router and devices are Category 6
- D. That the router has the correct subnet masks configured for each interface
- E. What should the technician verify first?
Answer: E
Explanation:
Correct Answer. A. That the router has the correct subnet masks configured for each interface Incorrect subnet masks can prevent routing between interfaces on a router, leading to connectivity issues between subnets.
Option B is incorrect. While DHCP is important for IP address assignment, it does not directly resolve routing issues between subnets.
Option C is incorrect. The category of network cables would impact physical connectivity and data rates but not routing between subnets.
Option D is incorrect. While firewall settings are crucial, the first check should be the configuration that directly impacts routing.
NEW QUESTION # 41
Sarah, an employee, reports that she is unable to access the department's shared document folder, which she could access until yesterday.
What is the first step you should take to troubleshoot her access issue?
- A. Reset her network password
- B. Upgrade her user account to administrative privileges
- C. Reinstall the network drivers on her computer
- D. Check her membership in the appropriate security group
Answer: D
Explanation:
Correct Answer. B. Check her membership in the appropriate security group The first step should be to verify if Sarah is still a member of the security group that has permission to access the shared document folder, as changes or updates in group memberships might have inadvertently removed her.
Option A is incorrect because there is no indication that her password is the issue, as she can log in but cannot access specific resources.
Option C is incorrect as network driver issues would typically prevent her from accessing all network resources, not just a specific folder.
Option D is incorrect because upgrading her to administrative privileges can pose a security risk and does not address the underlying access issue.
NEW QUESTION # 42
A company has recently implemented a new WLAN and employees report they are unable to connect to the network despite seeing the SSID listed as available. What should the technician check first to resolve this issue?
- A. Replace the wireless network adapters in the employees' devices
- B. Increase the signal strength of the wireless router
- C. Verify the security settings and password associated with the SSID
- D. Change the SSID to a less congested channel
Answer: C
Explanation:
Correct Answer. A. Verify the security settings and password associated with the SSID Incorrect security settings or passwords are common issues preventing connection even when the SSID is visible.
Option B is incorrect. Signal strength affects range and quality but not the ability to connect with correct credentials.
Option C is incorrect. Replacing network adapters is an extreme measure not typically necessary if the SSID is visible.
Option D is incorrect. Changing the channel addresses interference issues but won't affect authentication failures.
NEW QUESTION # 43
A user has accidentally deleted a folder containing critical business presentations from their computer.
How can they restore these files using OneDrive?
- A. Reinstall the OneDrive application
- B. Retrieve the files from the Windows Recycle Bin
- C. Restore the files from the OneDrive Recycle Bin
- D. Perform a system restore on their computer
Answer: C
Explanation:
Correct Answer. B. Restore the files from the OneDrive Recycle Bin OneDrive stores deleted files in its own Recycle Bin for a limited time, where users can easily restore them if accidentally deleted from their device.
Option A is incorrect because files deleted from the OneDrive folder may not be in the Windows Recycle Bin if they were removed from another device or online Option C is incorrect because a system restore affects system files and settings, not user documents or presentations Option D is incorrect because reinstalling OneDrive does not affect deleted files and will not recover them
NEW QUESTION # 44
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