Server Administration Midterm

Kristoffer creates a PowerShell script to automatically execute a set of tasks on system startup. He uses variables in his script to accomplish certain tasks. He is using a variable to filter out certain conditions during which the script should not execute. Which of the following names can Kristoffer use for the variable?

$count

What is the IP address that is assigned to the network loopback interface?

127.0.0.1

Linwood is the IT manager of a small organization, Turtle Designs, with less than 50 employees. Caroline, his boss, asks him to set up a computer that will act as the central repository for the company's data. Linwood estimates the costs and suggests using an Internet-based service instead. What is Linwood recommending in this scenario?

A cloud based server

Which of the following organizations should consider using Azure Active Directory?

An organization that subscribes to Office 365 services

VM1's virtual hard disk files will be moved to the destination server.

Andrei enabled the Live Migration feature of Hyper-V during its installation. He selects a virtual machine called VM1 within Hyper-V Manager and clicks on Move within the Actions pane. Next, he selects "Move the virtual machine's storage." Which of the following is true of this scenario?

Dillon wants to create a PowerShell script that automatically opens a bunch of websites whenever his system boots. He downloads a script from an Internet forum for PowerShell scripts and runs it. The script executes without warnings or asking for any additional confirmation. What is the most likely execution policy on Dillon's system?

Bypass

You are in the process of installing Windows Server 2019 Standard Edition on your computer. You have downloaded the corresponding ISO file and burned it to a DVD. Which of the following steps should you take next?

Change the boot order in the BIOS.

Which of the following statements about directory partitions is true?

Changes to a domain partition on a domain controller are only replicated to domain controllers within the same domain.

Huong is the system administrator for a virtual machine that is used by over 500 employees. She wants to install some device drivers to enable support for a few hardware components. Before she installs the drivers, she wants to ensure that she can revert to the current version of the virtual machine if something goes wrong with the installation. Which of the following Hyper-V features should Huong use?

Checkpoints

Candice, a graphic designer, attaches a new portable hard disk to her computer. She can connect to the hard disk immediately without installing any drivers. After some time, she turns on the second monitor attached to her computer. The display malfunctions despite being connected to the computer and receiving adequate power supply. What is the most likely explanation for this issue?

Computers contain a limited number of IRQ lines.

Which feature of Windows Server 2019 is designed to foil malware by preventing programs from using system memory space?

Data Execution Prevention

Deion is creating a new virtual machine using the New Virtual Machine Wizard. After choosing the generation for his virtual machine, he is prompted to select the memory and an optional choice to enable the use of dynamic memory. He consults a colleague, Kanesha, and they decide against enabling dynamic memory. What is the most likely reason that prompted this decision?

Deion intends to use this virtual machine in a nested virtualization configuration.

Ivan is the IT administrator at Alphina Systems. He wants to be able to plug and unplug his hardware devices without using the Safely Remove Hardware option. What should Ivan do?

Disable file caching and flushing

Alfons recently received a promotion to lead a team of 35 software engineers, testers, and business analysts. When he needs to send an email or meeting invite to his team, he realizes that he must type out the email IDs for all his team members. He approaches Priyanka from the IT team to help him make this process easier and more efficient. Which of the following features of Active Directory can Priyanka use to provide a solution?

Distribution groups

Don is the system administrator for an organization that conducts virtual IT training sessions. Each participant, during these training sessions, creates multiple unique applications to address various problems. The applications have different hardware resource requirements. Don needs to set up a virtual lab with twenty Windows operating systems on 1 TB storage space for two different training programs. Help Don choose the right size of the virtual hard disk files.

Don should use thin provisioning

What is driver signing, and how does it affect drivers that are not signed in Windows Server 2019?

Driver signing is a security feature used by Windows OS that verifies the authenticity and integrity of device drivers before allowing them to be installed and executed. When a driver is signed, it means that the driver file has been digitally signed by the developer or manufacturer, via a digital certificate. If a driver is not signed or has an invalid or expired digital signature, Windows Server 2019 will prevent its installation or execution by default.

Ananya is installing the Hyper-V role on a server. When prompted for the location of the virtual machine files, she changes the location from the default value to E:\VMs. Where will the virtual machine configuration files be stored?

E:\VMs\Virtual Machines

A limitation of Windows PowerShell is that it cannot be used to install or remove Windows roles.

False

By default, a new domain has six organizational units: Domain Controllers, Builtin, Computers, ForeignSecurityPrincipals, Managed Service Accounts, and User.

False

By default, the only site created within a new forest does not contain any domain controller.

False

Decision constructs such as If and Switch allow you to perform a task multiple times.

False

If domain1.com is the forest root domain, you can use the command Set-ADForestMode Windows2012R2Domain to raise the forest functional level to Windows Server 2012 R2.

False

Live Migration cannot be enabled if the Hyper-V host operating system is joined to an Active Directory domain.

False

Storage pinning is the process of planning hardware for a specific server within an organization.

False

The Windows 10 Education edition supports Hyper-V but not nested virtualization.

False

To replicate a virtual machine, it is sufficient that replication is enabled on the Hyper-V host of the virtual machine that is being replicated.

False

You need multiple boot images on a WDS server, one for each operating system.

False

Fareeda, a system administrator, is configuring the security settings for a Generation 2 virtual machine called VM1. She enables the Trusted Platform Module (TPM). Next, she wants to encrypt the virtual hard disks for VM1 so that other virtual machines are restricted from using these hard disks. If the virtual hard disks are successfully encrypted, which of the following statements must be true?

Fareeda enabled shielding in the security settings for VM1.

What is the term for domain and forest functions that must be coordinated from a single domain controller?

Flexible Single Master Operations

Freya notices some performance issues with an important Generation 2 virtual machine. She realizes that the issue is caused by the presence of other virtual hard disks on the same physical disk. She has another physical hard disk on her system that is currently underutilized. She decides to use this disk as a pass-through disk to enhance the performance of the virtual machine. If Freya was able to accomplish this task successfully, which of the following must be true?

Freya changed the physical disk's settings to take it offline.

Thandiwe is using a server running the Windows Server 2019 operating system. She notices some of the server's services are not functioning as intended. She suspects that a recent update may have caused this issue. While troubleshooting, she intends to look up the list of recently installed updates. She runs the following command: X | ogv Complete the command by selecting the missing component identified by X.

Get-HotFix

Sanya, an IT administrator for an organization, installs a new application on 150 computers used by programmers in the organization. She does this with a few clicks only for this specific set of users without impacting the rest of the organization. Which of the following features of Active Directory is exemplified by Sanya's actions in this scenario?

Group Policy

She enabled replication on SERVERY.

Gyaltsen is a system administrator who is managing the operation of virtual machines at her company. One of her key responsibilities is to ensure maximum uptime of virtual machines. She uses replication to ensure this. She is configuring replication for a virtual machine called VM1 on SERVERX to be replicated to SERVERY. If the replication is successful, which of the following tasks did Gyaltsen most likely complete?

You are experiencing problems during the installation of Windows Server 2019. More specifically, critical file extensions have lost their associated program data. You need to restore the settings from a Registry backup. Where will the settings be found?

HKEY_CLASSES_ROOT

Felipe requests the system administrator, Lucida, to change the font settings on a shared desktop system. Felipe wants a larger font size when he logs onto this computer. Which Registry root key should Lucida access to change the font size?

HKEY_CURRENT_USER

Hiroshi is the system administrator at an organization that has offices spread across three locations, Boston, London, and Paris. The organization has an Active Directory domain, domainA.com, with two domain controllers in each location for the marketing business unit. The company expanded recently and added over 3000 new users across these locations. Hiroshi notices that this surge in users is causing Internet congestion because of the Active Directory replication. What is a cost-effective method of dealing with this issue?

Hiroshi should create site objects and specify timed intervals for replication using site link objects.

Which of the following is true of Storage Server 2019?

It cannot be purchased from Microsoft directly.

What is the System File Checker tool, and how does it work?

It is a built in Windows tool that help identify and repair corrupted or missing system files. the SFC tool scans protected system files and replaces or repairs any files that are found to be corrupt or modified. First is the scanning phase: SFC is run through command prompt or PowerShell with admin privileges. The scan is initiated and SFC compares files on your system against good known version of the files stored in Windows. Next, SFC uses a database of file signatures and checksums to determine if the files on your system match the expected version. Once the SFC tool detects any corrupt or modified files, it attempt to repair or replace them with the correct versions from Windows. Finally, after the scan and repair process is completed, the SFC tool generated a log file with a summary of the scan results.

Which of the following statements is true of a client on a computer network?

It is a computer that requests for resources from another computer on the network.

Which of the following statements regarding a domain functional level is accurate?

It represents the oldest Windows Server version that can be used on a domain controller.

Jenaro installed the Windows Admin Center on a Windows Server 2019 system called SERVERX. He intends to manage other servers using SERVERX. If SERVERX has Web server software installed using port 443, which of the following must be true?

Jenaro can connect to the Windows Admin Center only by appending the port number to the URL.

Yihana has configured a WDS server with the appropriate boot and install images. Next, she starts the WDS service to respond to PXE requests from other computers and virtual machines on the network. She wants to enable rapid server deployment using WDS to install Windows Server 2019 on these virtual machines and computers. If Yihana can successfully install the operating system, which of the following tasks has she completed?

Listed the network interface at the top of the boot order

Kettle Inc. from Florida merges with Blue Clu Networks from Minneapolis. Minisha, a system administrator, is granted the responsibility of configuring Active Directory across both locations to enable users from both locations to access common resources. If Minisha is able to accomplish this task successfully, which of the following must be true?

Minisha is a member of the Enterprise Admins group in both organizations.

Nadira is testing an application that needs to work on multiple operating systems. For this purpose, she uses Hyper-V to set up a Windows Server 2019 virtual machine (named VM1) and a Linux-based virtual machine (named VM2) on her host Windows 10 operating system. She sets up a third virtual machine, Windows Server 2012 (named VM3), to test the compatibility of the application between Windows Server 2019 and 2012 versions. Which of the following must be true if VM3 was set up successfully using nested virtualization?

Nadira powered off VM1, ran a PowerShell command, and powered on VM1.

Isabella configures three virtual machines, VM1, VM2, and VM3, on a Windows Server 2019 host. The host and VM1 are connected to a physical switch (external virtual switch). VM1 and VM2 are connected to a private virtual switch. VM2 and the host are connected to an internal virtual switch. VM3 is not connected to any switch. Isabella is building an application that provides clients access to confidential financial information in a secure database. Isabella chooses to run the application on the host server and decides to implement an N-tier security design to protect the database. Where should Isabella place the database?

On VM2

Shweta, a system administrator at Status Wire, is configuring Windows Server 2019 using Server Manager. She wants the Dashboard to display an alert whenever the server exceeds certain CPU usage. Which of the following panes should she use to configure this setting?

Performance

A user, Petra.T, is trying to access their system while the global catalog server for the domain is offline. What is the most likely outcome?

Petra.T will be allowed to log in to the system with cached credentials.

Shae is using a Windows Server 2019 operating system. She recently spilled hot chocolate on her keyboard, which damaged the keyboard. She purchased a new keyboard and connected it to her computer. She assumed that she would have to download a driver to use the keyboard. To her surprise, she was able to use the keyboard without any further action from her side. Which of the following features allowed Shae to start using the keyboard straightaway?

Plug and Play (PnP)

What is the advantage of using production checkpoints over standard checkpoints?

Production checkpoints cause fewer problems than standard checkpoints when applied.

Kristian uses the following command on Windows PowerShell to view a list of all cmdlets: PS C:\Users\Administrator>Get-Command | More The command displays a subset of the total output and follows it with the word More. On clicking the return button, the next set of results is displayed. Kristian wants to exit this and return to the PowerShell prompt. Which of these keys should Kristian press?

Q

Abu is creating a virtual machine template to enable rapid server deployment at his organization. He creates a virtual machine named VM1. On VM1, he installs Windows Server 2019 and names the server SERVERX. Next, he installs server roles and features and adds third-party software. He then runs the System Preparation Tool. What will this tool most likely to do?

Remove the computer name SERVERX

Mahmood works as a full stack web developer at Insignia Informatics. As one of the senior developers, Mahmood is often tasked with testing web applications built by his team. Often, he finds himself testing multiple web applications simultaneously over a short period. Mahmood uses a separate virtual machine to run each application in isolation. This often causes a resource crunch because each virtual machine uses large amounts of system resources, and Mahmood cannot be as productive as he wants to be. What would you advise Mahmood?

Run these web applications in containers

Ryan, a server administrator, is attempting to install the Windows Admin Center on a server called SERVERX. However, he is unable to do so. Which is the following may be a reason for this?

SERVERX is the domain controller for the Active Directory.

Haruko is a system administrator at Notion Source, a company that specializes in digital marketing. He is configuring Windows Server 2019 on SERVERX and adding multiple servers to Server Manager so that he can manage all the servers from the same console. He is trying to add SERVERY, a file server. Despite his efforts, he is unable to add this server to Server Manager. Which of the following is a likely reason that he is unable to add SERVERY to the console?

SERVERY is part of a workgroup, but the workgroup server is not on the trusted hosts list.

Satish wants to install Windows Server 2019 Essentials Edition on his computer. The hardware specifications of his system are as follows: 3 GHz 64-bit processor, 16 GB memory, and 50 GB storage. If Satish installed the server using Rufus, which of the following is most likely true?

Satish's computer does not have an optical disk drive.

You are the system administrator tasked with raising the domain functional level of domainA.com from Windows Server 2008 to Windows Server 2012 R2. First, you upgrade the domain controllers running Windows Server 2008 to Windows Server 2012 R2. Which of the following commands must you run next in Windows PowerShell to complete your task?

Set-ADDomainMode -Identity domainA.com -DomainMode Windows2012R2Domain

Raven is adding FSMO roles to domain controllers in the domain1.com forest. The forest contains a single domain and three domain controllers, DC1, DC2, and DC3. DC1 contains a copy of the global catalog, and all three domain controllers have the latest version of Windows Server 2019 installed. Which of the following is a best practice that Raven should follow?

She should create the Domain Naming Master role on DC1.

Arpita is adding FSMO roles to domain controllers in the domainG.com forest. The forest contains other domains. domainG.com contains two domain controllers, DC1 and DC2. DC1 contains a copy of the global catalog. Which of the following is a best practice that Arpita should follow?

She should create the Infrastructure Master role on DC1.

Minato has created multiple virtual machines. He is using the Virtual Switch Manager to configure virtual switches. He wants to create an external virtual switch that will allow Hyper-V to manage network requests from these different machines. The purpose of this is to optimize performance across the network. Which of the following options should Minato enable?

Single-root I/O virtualization

Candace works as a system administrator at Capnia Systems, a product company with over 250 employees. She receives an email from her boss that says that one of the servers is running slow. The server is running the Standard Edition of Windows Server 2019, and the hardware includes HDDs and SSDs. Upon investigation, she finds that some frequently accessed files are being stored on HDDs, while other smaller and infrequently used files are stored on SSDs. Which feature should Candace enable to improve the efficiency of the server?

Storage tiering

Which of the following statements regarding the use of system and user environment variables is accurate?

System environment variables are always set first.

What is the use of adding tags to servers in the Windows Admin Center?

Tags help identify servers and can be searched using the Search dialog box.

Tamara wants to install Server Core on a virtual machine on her Windows Server 2019 computer. She tries installing it but fails. Which of the following is most likely to have caused the installation failure?

Tamara's computer has 30 GB free hard disk space.

Caylin, an IT administrator, receives an email from a coworker that the company website, eloxnet.com, is not accessible. She decides to check if there is an issue that is preventing access to the website. Which of the following PowerShell cmdlets should Caylin run first?

Test-NetConnection

Describe the various categories of recommendations provided by the Best Practices Analyzer (BPA) when it verifies server roles.

The Best Practices Analyzer(BPA) is a Microsoft tool that examines server roles and provides recommendations to ensure optimal configuration and adherence. BPA, while verifying server roles, offers recommendation for configuration settings, security, performance, maintenance and monitoring, compliance, and finally upgrades and updates. For configuration settings, BPA focuses on setting that affect the performance, sercurity, and functionality of the server role. Suggestions made relate to network settings, authentication methods, and firewall rules. Security, deals with recommendations to improve the security of the server role. Suggestion made are related to changing access controls, permissions, user rights, and encryption settings. Performance, is centered around optimizing the performance of the server role. BPA suggest modifications to hardware configuration, caching settings, resource allocation, and other parameters to increase the servers efficiency and responsiveness. For Maintenance and Monitoring, BPA suggestions relate to backup and recovery strategies, event log settings, and log file management.

Rozalia installs the Windows Deployment Services (WDS) role on SERVERX. She intends to use SERVERX to enable rapid server deployment across her organization's network. She opens the Windows Deployment Services tool and notices a yellow warning icon on the SERVERX server object in the navigation pane. What does this indicate?

The WDS service is not yet configured.

Rhonda's company has a rack containing one email server, file server, web server, firewall server, UPS, SAN, and management station. Owing to a thunderstorm, a ten-block radius surrounding the company faces a power outage. Rhonda, who is working from home, tries sending an email to a colleague, but the email does not get sent. Which of the following is the most likely cause for this issue?

The blackout took down the Internet, so Rhonda can't reach the email server.

Devansh creates a checkpoint on his virtual machine before making some Windows Registry changes. After making these changes, he runs a test to verify that the virtual machine is working as intended. He notices some unintended effects of the Registry changes. Devansh applies the checkpoint to revert the virtual machine to its state before the Registry changes were made. Which of the following is true of this scenario?

The checkpoint file that is used to reverse the changes will be deleted from the system.

Lehana is creating a new virtual machine using the New Virtual Machine Wizard. After choosing the name WindowsServer2019VM for her virtual machine, she proceeds to the next step. She chooses Generation 1 when prompted to pick the generation for the virtual machine. Which of the following reasons justifies Lehana's choice?

The guest operating system on the virtual machine is a 32-bit version of Windows 7.

Calvin has installed Windows Server 2019 on his personal computer to take part in training program. During one of his lab exercises, his computer crashes. Upon investigation, he finds that the server has not created a crash dump file. What is the most likely reason that Calvin's computer failed to create the dump file?

The paging file is disabled on the computer.

Malaika uses the Edge browser on her computer to access a website. The browser sends a request to another computer over the Internet, which returns web page data that is displayed on the browser. Which of these entities is the server?

The responding computer

You are attempting to upgrade a server from Windows Server 2008 R2 to Windows Server 2019 Standard Edition. What must be done in order to accomplish the upgrade?

The server should be updated to the latest service pack for 2008 R2 and then upgraded to Server 2012 R2, after which the server can be upgraded to Server 2019.

Remtax offers tax consulting services over the Internet. It assists people in preparing their income tax returns. In which of the following scenarios should Remtax use Windows Server Core or Nano Server?

The server will be dedicated to web services and accessed via the Internet.

Miguel is using the New Virtual Machine Wizard to create a new virtual machine for the first time. Which of the following statements is true if Miguel creates a virtual machine with default settings?

The virtual machine will have a 127 GB dynamically expanding hard disk.

What are the interrupt request (IRQ) line and Input/Output (I/O) address resources on a computer used for?

They are used to facilitate communications between hardware devices and CPU's. IRQ lines are electrical lines or signal used by hardware devices to request the attention of the CPU. An interrupt request is sent via IRQ lines when a device needs to transfer data, send a command, or indicate an event. I/O address or ports are numerical addressed used by the CPU to interact with hardware devices for input and output operations. If a device needs to send or receive data or from the CPU, it uses a specific i/O address as a communication channel.

Identify the true statement about Type 2 hypervisors.

They can run multiple operating systems on a single host.

Dmitry installs the Hyper-V role using the Add Roles and Features Wizard. Upon completion, he is prompted to reboot the computer. However, his computer reboots twice. Why does Dmitry's computer reboot the second time?

To allow Hyper-V to start the host operating system

Alina is using Windows PowerShell on a Windows Server 2019 system for the first time. She wants a list of all cmdlets in PowerShell, so she types the following command: PS C:\Users\Administrator>Get-Command | More Why does Alina use the pipe symbol (|) in this command?

To send the output from Get-Command to More, which displays the output page-by-page

Hamza installs the Windows Deployment Services role on SERVERX. He intends to use SERVERX to enable rapid server deployment across his organization's network. He wants SERVERX to be able to send WIM images to each computer on the network in response to their PXE requests. Which component of the Windows Deployment Services role provides this feature?

Transport Server

Azure Active Directory can be configured to trust an organization's Active Directory forest, or mirror it using a synchronization service.

True

Cmdlets are case-insensitive, so Get-Host and get-host are equivalent.

True

Hyper-V supports nested virtualization that can be used to create virtual machines within another virtual machine.

True

Installing the Hyper-V role will install the Hyper-V hypervisor, Hyper-V Manager console, and Hyper-V PowerShell cmdlets.

True

The System File Checker is useful in recovering system files that have been corrupted.

True

Ahmad, a system administrator in an organization, is setting up new Active Directory domains for the Marketing and Sales teams in the organization. Previously, all the marketing and sales employees worked as a single team. Recently, the employees in these teams were reorganized into two separate teams. He is setting up Active Directory domains on Windows 2019 Server to reflect the organizational structure. What is the minimum number of domain controllers that Ahmad should add to the Marketing domain?

Two

If a site cannot hold a copy of the global catalog, which of the following features can be enabled on the site to provide fast authentication?

Universal Group Membership Caching

You are the system administrator at an organization. Most of the servers in your organization, including domain controllers, are running Windows Server 2012 and above. Some servers, excluding domain controllers, are running Windows Server 2008 R2. Most of the clients are running Windows 10, but a few systems are running Windows 7. You have been tasked with improving the security measures of the Active Directory forest by restricting malicious access to Active Directory. You decide to use Privilege Access Management. What should you do next?

Update all the domain controllers running Windows Sever 2012 to Windows Server 2016

Orana works for an organization that sets up several virtual machines on a day-to-day basis to be deployed for various clients. Orana is exploring various Hyper-V options that will simplify this process. Which of the following Hyper-V features should Orana use?

Virtual machine templates

Chen is a freelance web developer who uses a Windows 10 computer. When she needs to test her web application on a different operating system, she sends it to her friend who has other operating systems installed on multiple devices. This is a time-consuming process. She's looking for a way to test the web application across different operating systems on her own computer. Which of the following features should she use?

Virtualization

What is the term for programs and system software that can query WMI?

WMI consumers

Walter Wells, Inc., a company that builds robotic process automation (RPA) applications, uses Windows Server 2016 to run several Linux and Windows virtual machines. Which of the following statements, if true, would make upgrading to Windows Server 2019 a good choice?

Walter Wells spends a considerable amount of money on encrypting Linux virtual machines.

Anahira is the system administrator at an organization that has offices in two different locations, New York and Sao Paulo. She decides to create sites for each location, NewYorkSite and SaoPauloSite, to improve Active Directory replication. Once she creates the sites, she associates NewYorkSite with the IP address 10.1.0.0/16. Which of the following is true of this scenario?

When new domain controllers are added to this network, they will be added to NewYorkSite by default.

Eileen is a Web app developer. All the apps that Eileen builds run in Linux containers on the cloud. She currently uses a Windows 7 operating system. Why should Eileen consider upgrading to Windows 10?

Windows 10 has Windows Subsystem for Linux.

Emmitt, an IT administrator, is on a holiday when he receives a message from his boss about an issue with one of the servers running Windows Server 2019. Fortunately, Emmitt is carrying his laptop that is running a Windows 7 operating system. Emmitt accesses the server remotely and resolves the issue. Which of the following tools did Emmitt most likely use to access the server?

Windows Admin Center

Achelle Electronics purchases hardware to set up 25 servers. The IT department must deploy Windows Server 2019 on these machines. Which of the following Hyper-V features should Achelle Electronics use?

Windows Deployment Services

Raymond is a system administrator at Kelly Consulting. He's trying to automate some security features using Windows Server. One of the tasks he's trying to accomplish is automatically blocking any Outlook rules that are set to forward emails. Particularly, he's attempting to write a script that blocks any rules that automatically forward emails to external parties. Which of the following tools would be most effective in completing this task?

Windows PowerShell

Where can the most up-to-date list of compatible hardware available for Windows Server 2019 be found?

Windows Server Catalog

Which of the following tools can be used to create an unattended answer file?

Windows System Image Manager

Catelin creates a virtual machine template named WindowsServer2019VMTemplate. She wants to import this template, so she opens the Import Virtual Machine wizard in Hyper-V Manager on SERVERX and proceeds with the process. She specifies the location D:\VMS\Win2019VM1 for the configuration files and virtual hard disks. When Catelin clicks Finish during the last step and the virtual machine is created, what name will it have?

WindowsServer2019VMTemplate

Asmara, a system administrator, is performing routine maintenance checks on the Windows servers in her organization. As part of these checks, she is required to verify that drivers and system files on each server are not corrupted. Which of the following commands should Asmara run?

sfc/scannow