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Chapter 7
Virtualization and Cloud Computing
Applying Concepts: Browser Security
You can change the settings in your browser to make sure you’re using the latest version
of TLS. On a Windows machine, changes you make to one browser for these settings will
affect all browsers installed on your computer. Complete the following steps:
1. To open Internet Explorer, first open Microsoft Edge. In Microsoft Edge, click
3. On the Advanced tab, scroll down to the Security section. Which SSL/TLS
options are currently enabled?
4. Disable SSL 3.0 and TLS 1.0. Make sure TLS 1.1 and TLS 1.2 are enabled. If
you regularly use an unsecured wireless network like at a coffee shop or a
restaurant, also select Warn if changing between secure and not secure mode
so you’ll be notified when interacting with an unsecured website. See Figure 7-18.
Click OK.
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5. In Internet Explorer, navigate to paypal.com. What is the exact address shown in
the address box after the page loads in the browser?
6. Use the mouse pointer to point to the padlock icon. What CA verified the
legitimacy of the website?
7. Click the padlock icon. What additional information is provided about the
website?
Review Questions
1. What software allows you to define VMs and manage resource allocation and
sharing among them on a host computer?
a. Hypervisor
b. NFV (Network Functions Virtualization)
c. SDN (software-defined networking)
d. Terminal emulation
2. What virtual, logically defined device operates at the Data Link layer to pass
frames between nodes?
a. Virtual firewall
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b. Virtual switch
c. Virtual router
d. Virtual load balancer
3. With which network connection type does the VM obtain IP addressing
information from its host?
a. Bridged mode
b. Managed mode
c. NAT mode
d. Host-only mode
4. Which cloud computing services model gives software developers access to
multiple operating systems for testing?
a. IaaS
b. PaaS
c. SaaS
d. XaaS
5. What service in Windows Server 2016 authenticates remote users and computers
to the Windows domain and its corporate network resources?
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a. Active Directory
b. Group Policy
c. DirectAccess
d. RAS (Remote Access Service)
6. Which remote access protocol is used over an Ethernet network?
a. PPPoE
b. RAS
c. PPP
d. SLIP
7. Which encryption protocol does GRE use to increase the security of its
transmissions?
a. SSL
b. SFTP
c. IPsec
d. SSH
8. Which tunneling protocol is a component of the IPsec protocol suite?
a. L2TP
b. OpenVPN
c. PPTP
d. IKEv2
9. Which encryption benchmark ensures data is not modified after it’s transmitted
and before it’s received?
a. Confidentiality
b. Integrity
c. Availability
d. Symmetric
10. Which remote file access protocol is an extension of SSH?
a. SFTP
b. TFTP
c. FTPS
d. HTTPS
11. List two advantages to using virtualization on a network.
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12. How does a vNIC get a MAC address?
13. Which Transport layer protocol does PPTP use?
14. Which secured tunneling protocol might be able to cross firewalls where IPsec is
blocked?
15. Which type of hypervisor is installed on bare metal?
16. When surfing online, you get some strange data on an apparently secure website,
and you realize you need to check the legitimacy of the site. What kind of
organization issues digital certificates for websites?
17. Which current protocol is used to create secure transmissions for HTTP browsing
sessions?
18. What kind of device can be used to configure and manage physical and virtual
networking devices across the network?
19. Which terminal emulation protocol is similar to RDP but is open source?
20. Which port must be open for RDP traffic to cross a firewall?
Hands-On Projects
Project 7-1: Use Remote Desktop
The host or server computer is the computer that serves up Remote Desktop to client
computers. To prepare your host computer, you need to configure the computer for static
IP addressing and also configure the Remote Desktop service. The following steps are
specific to a Windows 10 (Professional or Enterprise) machine, but can be adapted to
Windows 8.1:
1. Configure the host computer for static IP addressing. As a reminder, you learned
2. To turn on the Remote Desktop service on the host computer, open the Settings
window and in the left pane, click About. Scroll down to Related settings, and
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3. Users who have administrative privileges are allowed to use Remote Desktop by
4. Verify that Windows Firewall is set to allow Remote Desktop activity to this
5. The Allowed apps window appears. Scroll down to Remote Desktop and adjust
the settings as needed to match the settings in Figure 7-29. Click OK to apply any
changes. You will learn more about Windows Firewall in Chapter 10.
You are now ready to test Remote Desktop by attempting to access another computer
somewhere on your local network. First, let’s verify you have Remote Desktop working
on your local network. Note that any version of Windows 7, 8.1, or 10 can serve as a
client computer (the computer viewing the host computer’s desktop) for a Remote
Desktop connection. The following steps are written specifically for Windows 10.
Follow these steps to use Remote Desktop on the client computer:
6. Press Win+R, type mstsc in the search box, and press Enter. Alternately, you can
click Start, scroll down and click Windows Accessories, and then click Remote
Desktop Connection.
7. Enter the IP address or the host name of the computer to which you want to
8. If you plan to transfer files from one computer to the other, click Show Options
and then click the Local Resources tab, as shown in the left side of Figure 7-30.
Under Local devices and resources, click More. The box on the right side of
Figure 7-30 appears.
9. Check Drives, click OK, and then click Connect to make the connection. If a
warning box appears, click Connect again.
10. Log on using a username and password for the remote computer. If a warning box
appears saying the identity of the remote computer cannot be verified, click Yes
11. The desktop of the remote computer appears in a window, as shown in Figure 7-
31. When you click this window, you can work with the remote computer just as
if you were sitting in front of it, except the response time will be slower. To move
files back and forth between computers, use File Explorer on the remote
computer. Files on your local computer and on the remote computer will appear in
In the previous project, you created a Remote Desktop connection between two
computers. In the real world, you might need to manage several remote connections of
several types, such as RDP, FTP, TeamViewer, VNC, VPN, and so on. RDM (Remote
Desktop Manager) by Devolutions, Inc., can corral all these remote connections into a
single interface.
In this project, you use the same two computers you used for Project 7-1. Complete the
following steps to set up Remote Desktop Manager on the computer that will manage the
connections, called the client computer for the purposes of this project:
1. On the client computer, navigate to the Devolutions, Inc., website at
remotedesktopmanager.com and click the Download link. Download and install
2. Create a free online account to register for Remote Desktop Manager Online (also
free). Record your account information in your LastPass vault. Activate your
account when you receive the confirmation email, then complete registration for
7-1. Complete the following steps to create the RDP connection through RDM:
4. On the client computer, in the RDM center pane, click the Dashboard tab and
then click Add Session. Click Microsoft Remote Desktop (RDP) then click OK.
5. Click Open Session. As you can see, RDM allowed you to create the Remote
Desktop connection through the program’s interface instead of needing to open
6. Click Close Session to disconnect the computers.
7. In RDM on the client computer, click the New Entry plus-sign icon at the top of
the screen. Choose a different type of remote connection to create between the
8. Make notes on your Wikidot website about the Remote Desktop Manager