CompTIA A+ Core 2 Module 5 Questions

What are the options of rolling updates in a large network with hundred of computers and 25 desktops?

1. Each system and server is configured to download the updates directly from the Windows Update Website. The issue with this method is that each system and server will be downloading from the Internet, which will be time and bandwidth consuming. You would not know whether the system is updated or not. Also, in this method, no testing of updates has been done. An update may end up causing a problem for one or more systems or servers. 2. The system administrator downloads and installs on each system and server manually. Even if the system administrator tests the update, it is time-consuming. 3. The system administrator uses an internal Windows Software Update Services server to download the updates on a central location, test the updates, and then distribute them to the respective systems and servers. The system administrator is also able to generate the report of updates being installed. In this method, a one-time download takes place, which means bandwidth and time is saved. Updates are rolled out when systems are available on the network.

What are some of the reasons a Service could fail to start?

A dependency service is not started or has failed to start. A required patch or installer is missing in the system. There is a conflict between the failed service and another service. The installed application is incompatible with the operating system.

What should you check if many users in an organization are not able to browse the internet?

A proxy server for managing connections to the Internet DNS server for name resolution Gateway for sending out the traffic

In the troubleshooting methodology, when you question the obvious?

After identifying the problem

Which of the event types are NOT displayed in Event Viewer?

All of these are displayed

Trouble shooting methodology

An example of a commonly used troubleshooting methodology is: 1. Identify the Problema. Gather informationb. Identify symptoms 2. Establish a Theorya. Start with the simple and consider all possibilitiesb. List probable causes starting with the easiest theory and least difficult totest 3. Test the Theory a. Determine next steps to resolve the problemb. Failed theory try again - Back to step #1 4. Create an Action Plan a. Build the plan and execute with the least impact b. Identify the potential for what could go wrong and have a backup plan 5. Implement the solution 6. Verify Full System Functionality a. The test as part of the plan b. Have your customer confirm the fix c. Implement preventative measures 7. Documentation a. Build the knowledgebase b. Case notes

What are the three major categories in the processes tab in Task Manager?

Apps Background Processes Windows Processes

Question Workspace Check My Work You have exhausted your knowledge of a problem and it still is not solved. Before you escalate it, what else can you do?

Ask a knowledgeable coworker for help.

A user tells you that Microsoft Word gives errors when saving a file. What should you do next?

Ask the user when the problem first started.

Due to which of the following reasons a system can fail to boot up?

Booting from a non-bootable USB Missing system files Master Boot Record (MBR) corruption (Not a comprehensive list)

When a user, Belinda Lim, signs in to Windows, she cannot see her Documents folder in File Explorer and some of her Windows user settings are lost. You suspect her user profile is corrupted. Which tool or method should you use first to investigate and/or solve the problem? Second?

Check the C:\Users\Belinda Lim\Documents folder. Use the chkdsk command.

You need to install a customized console on 10 computers. What is the best way to do that?

Create the console on one computer and copy the .msc file to the other nine.

On a Windows computer, which tab can be used in Task Manager to set the priority given to a specific application or service?

Details

What is the default layout set in the File Explorer?

Details

What was the source of your DHCP error?

Dhcp-Client

What are some methods you can use to address a slow bootup?

Disable Fast Boot Adjust Virtual Memory Disable Startup Programs

When trying to improve performance of a slow system, you notice in Task Manager that the superfetch service is using a high percentage of CPU time. What is your next best step?

Disable superfetch to improve performance.

What are the key reasons for a black screen?

Display device driver update: A recent device driver update can cause the black screen to appear. You should simply uninstall the device driver using Safe Mode. A loose physical connection between the display adapter and the motherboard: This could be a reason you experience the black screen before you are even signed-in to Windows. You should check all physical connections and ensure everything is fitted well. Peripherals connected to the system: A peripheral, such as Bluetooth or a USB, can also cause a black screen. If you have multiple peripherals connected to the system, disconnect all of them and then restart the system. If the black screen does not occur, then you know it was one of the peripherals that were causing it. There may be a possibility that you are able to boot into Windows and a black screen appears only after you sign in. If you are able to see the mouse pointer, then the possibility is that the issue is with Windows Explorer. You should open Task Manager and restart the Windows Explorer service.

Which of the following tasks can you perform with the Registry Editor?

Edit a registry setting Delete a registry setting Update a registry setting Create a registry setting Search a registry setting

Which of the following can you use to boot a system?

Floppy disk USB drive Hard drive Network adapter CD-ROM/DVD

Which root key of registry containes the information about various file types, file extensions, and OLE

HKCR (HKEY_CLASSES_ROOT)

What are the Registry Editor Keys about?

HKCR (HKEY_CLASSES_ROOT): Contains the information about various file types, file extensions, and OLE. HKCU (HKEY_CURRENT_USER): Contains information about the currently logged in user and the settings assigned to the user. HKLM (HKEY_LOCAL_MACHINE): Contains hardware and software settings that are specific to the system. This is the most used registry key. HKU (HKEY_USERS): Contains information about the users who have logged on to the system. Both, generic and user-specific, information is contained in this registry key. HKEY_CURRENT_CONFIG (HKCC): Contains the system hardware information.

Which hive contains information that identifies each hardware device installed on the computer?

HKEY_CURRENT_CONFIG

Which of these are NOT one of the primary hives found in Windows 10 Computers?

HKEY_WINDOWS

What are the individual sections of the windows registry called?

Hive

What are some of the key reasons you might have the Missing Operating System error?

Incorrect boot order: This is the simplest reason. You need to boot your system, get into the BIOS and set the hard drive as the first preferred device to boot from. The hard drive is not detected by the BIOS: You should check if all the physical connections between the hard drive and motherboard are made properly. If the connection is loose from either side, motherboard or the hard drive, the BIOS will not be able to detect the hard drive. An incorrect malformed master boot record (MBR): A malformed or missing MBR can also cause the missing operating system error. To fix this issue, you can re-create the MBR using a third-party tool, such as MiniTool Partition Wizard Bootable CD. A partition is not marked active: Windows needs an active partition to boot if you are using legacy BIOS and MBR. If the partition, on which Windows is loaded, is not marked as active, Windows will not load. You can use a third-party tool to set the correct partition as active. The hard drive is damaged: If a hard drive is physically damaged, it would require replacement. After replacing the hard drive, you would need to reload Windows.

You are having difficulty uninstalling freeware a user accidentally installed while surfing the web. You look online and see the software is designed to work in an x86-based version of Windows. In which folder should you expect to find the program files for the software?

It depends on the version of Windows installed.

Why did the command prompt window open when you ran your task?

It is what you set to run

In the lower pane of the Task Scheduler under Security options, which user account will be used to run your task?

LabConnection

Six Steps of Troubleshooting Methodology

Logically, the troubleshooting can use six steps methodology: 1. Identify the problem. 2. Establish a theory of probable cause - you need to question the obvious. 3. After establishing the theory, test it. This will help you determine the cause. 4. After the theory is proven, you need to establish a plan of action to resolve the problem. Finally, go ahead and implement the solution. 5. After implementing the solution, ensure that you verify the system functionality. This is to check that your solution has not introduced any problem in the system. You should also implement preventive measures, if possible, to ensure that the same problem does not arise. 6. Finally, you need to document the problem and the solution. The document can always be used by other team members who face the same issue in other systems.

Using Task Manager, you discover an unwanted program that is launched at startup. Of the items listed below, which ones might lead you to the permanent solution to the problem? Which ones would not be an appropriate solution to the problem? Explain why they are not appropriate.

Look at the registry key that launched the program to help determine where in Windows the program was initiated. Search Task Scheduler for the source of the program being launched. Search the startup folders for the source of the program.

In File Explorer, which of the following is a context-specific tab?

Manage is the context-specific tab

You are troubleshooting an application problem and want to eliminate faulty memory as a source of the problem. Which command do you use?

Mdsched.exe

A customer reports that his recently purchased computer does not consistently run his old applications. Application errors occur intermittently, and data files get corrupted. He has tried uninstalling and reinstalling the apps, and the problems persist. As you troubleshoot the problem, you reboot the system and get a BSOD error. The customer tells you the BSOD has occasionally appeared. Which subsystem is most likely causing the problem? What is the next best step?

Memory is faulty; run Memory Diagnostics.

What are the places you can boot up from?

Network adapter CD-ROM/DVD Hard drive Floppy disk USB drive

A Windows user is attempting to exit a locked up desktop application that is not responding to mouse or keyboard input. Which of the following steps can be taken to end the application process without exiting other open applications?

Open Task Manager and end the process associated with the application.

Which of the following is the name of the virtual memory file in Windows?

Pagefile.sys

Which of the following Windows tools is used to measure how well software and hardware are performing by displaying statistics in real time?

Performance Monitor

Common Methods to resolve connectivity issues

Reboot the system. Rebooting can help specifically in scenarios where the network service is in hang, or there is a temporary configuration issue. Reboot the router if this problem is faced by several systems on the network. If it is a single system problem, then you should check if the system is getting the IP address from the DHCP server. Check for the Ethernet cable (if your system is connected to the network with it). There will be a high probability that the Ethernet cable is faulty. Try replacing it with another Ethernet cable and then verify the connectivity. The network adapter may be an issue. Try updating its device drivers. An outdated device driver can break the connectivity. The system may not be able to connect to the wireless router. First, you should check if the security key is correct. If it is, then remove the existing connection and create a new one. The security key is correct but may not able to connect to the wireless router. This problem indicates that the network administrator might have put restrictions on or has not given you access to the wireless router. The MAC address of the network adapter is not bound on the wireless router, and therefore, you may not be getting connected. You might not be getting the IP address. If your network is using a DHCP server, check the DHCP server's IP pool. Most likely, the IP pool is full and therefore, the DHCP server is not able to lease IP addresses. There may be a DNS problem. If you can connect to the systems on the network but are not able to access the Websites with their names, this indicates a DNS problem. Verify that your system has an appropriate DNS address.

Which of the following protocol is used by Microsoft Terminal Services Client (MSTC)?

Remote Desktop Protocol (RDP)

A user wants to adjust the number of horizontal and vertical pixels displayed on a monitor screen. What display setting will the user adjust?

Resolution

When cleaning up the startup process, which of these should you do first?

Run System Configuration to see what processes are started.

A technician needs to configure a Windows 10 computer to start a background service automatically each time the computer is booted. Which of the following tools should the technician use?

Services Console

What are some of the reasons a computer might failt to boot?

Some of the problems could be related to the system files, Master Boot Record (MBR), or it could be due to a USB device attached to your system.

A technician is attempting to use System Restore to restore a Windows 10 system to a point in the recent past; however, the option to choose a restore point is not available. Which of the following is the most likely reason for this issue?

System Restore is turned off.

What could you do if you have a slow profile load?

The first problem could be that you have several network drives mapped. When one or more servers are unavailable or unreachable, then the profile with these drives mapped will attempt to reconnect to the mapped shares. If they are found, then the profile will load quickly. However, if they are unreachable, then the profile will attempt to locate them, therefore causing the delay. The solution is to minimize the mapped network drives.

A technician is troubleshooting a Windows system in which an application works properly when the computer is booted in Safe Mode, but does not function when Windows is loaded normally. Which of the following is the most likely reason for this issue?

The operating system or driver is causing the issue.

What are the most common reasons for an application to crash?

There are bugs in the application. When a user attempts to use a feature that has bugs, the application will generate an error. A new update has caused the application to crash. The newly released update has bugs or is not really getting integrated with the application, which then causes the application to crash. An application crash can also occur due to a shortage of system resources. When users are connected to the application, it increases its resource requirement. If this is not met, the application starts to generate errors.

What is the Startup Repair tool used for?

There can also be an issue of missing or corrupt system files. You can use the Startup Repair tool to fix this issue. To repair corrupt system files, you can also use the sfc (System File Checker) tool.

Pre-requisites to start device drivers properly

They must be physically installed properly. They must have appropriate device drivers installed. They must be configured properly.

How to disable a service?

To disable services, open the Services console. Double-click the service name. The properties dialog box for the service will be displayed. On the General tab, select the Startup type to Disabled. After you apply the settings, the service will not start when you boot the system.

True or false? Disk fragmentation can impact system performance.

True

What are a couple common solutions if you are not aware of the reason for a BSOD?

Update the BIOS. An incompatible BIOS can also cause BSOD. Reset the hardware settings in Device Manager. This would be required if you had made changes to the hardware settings, which could have probably caused BSOD.

A user complains that her computer is performing slowly. She tells you the problem started about a week ago when new database software was installed. The software runs in the background to update a database synced between the user's workstation and database server. Which is the best tool or method to use to determine if the new software is hogging computer resources?

Use Performance Monitor and Process counters to observe performance.

When Windows first starts and the user signs in, a message about a missing DLL appears. Which tool or method should you use first to solve the problem? Second?

Use Task Manager to identify the startup process. Search the web on the error message to better understand the problem.

An application is frozen and you cannot close its application window. What is the first thing you should try that can end the process? Second thing?

Use Task Manager. Use the taskkill command.

A technician is troubleshooting a Windows computer and needs to stop the explorer.exe process. Multiple attempts to open Task Manager have failed. The technician can successfully open a command prompt. Which of the following steps should the technician take next?

Use the tasklist utility to locate the PID for the explorer.exe process.

How do you enable hibernation?

Use this command in Windows PowerShell (Admin): powercfg /hibernate on You need hibernate on in order to disable fast boot in the Windows power setting

Which of the following steps can be taken to resolve limited or no network connectivity issues on a Windows computer? (Select the best TWO.)

Verify the network cable between the computer and router is connected and not damaged. Verify the SOHO router is powered on and the port LEDs indicate connectivity.

Where is the virtual memory and where is it stored?

Virtual memory is stored on the hard drive and is named pagefile.sys (if you make changes to it you need to restart your system)

Printer Offline

When you have a printer connected to your system and both are online, you can still face the offline printer problem. This problem indicates that there is a communication problem between the system and the printer. To resolve this issue, you can open the printer properties and verify that the title bar states Use Printer Offline. If yes, then from the Printer menu, uncheck Use Printer Offline. After performing the step mentioned above, if the issue isn't resolved, then you need to check the Printer Spooler service in the Services console. Restart this service once and then try printing. Often, the Printer Spooler service goes into a hang state and cannot communicate with the printer. Therefore, it puts the printer offline. Despite performing these two steps, if the printer is still offline, try updating the device drivers for the printer. You can also reboot your system once to ensure that the system is working fine.

What are the reasons for reimaging or reloading an OS?

Windows is corrupt and no longer booting up. There are too many problems occurring (such as slowness and application crashes). The system is severely infected with malware or ransomware.

A technician is troubleshooting a Windows BSOD error. The technician wants to check the memory installed in the system. Which of the following tools is used to launch the Windows Memory Diagnostic tool?

mdsched.exe

Which is the command line registry editing tool?

regedit.exe

What is the run box to open Task Scheduler?

taskschd.msc