A+ 1002 Study Guide

A plus 1002 Sub-objective 4.9 – Dumps4shared

A plus 1002 Sub-objective 4.9

A plus 1002 Sub-objective 4.9 – Given a scenario, use remote access technologies.

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The Remote Desktop Protocol (RDP) supports Remote Desktop
Connections (RDC). The Use of Remote Desktop dates back to Windows NT from the
late 1990’s. Remote Desktop and Remote Assistance use
the same protocol and allow for Screen share and File share. Both
program’s settings are accessed by opening Control Panel, clicking System, and
then Advanced system settings. In the System Properties below, observe the
Remote Assistance checkbox which enables Remote Assistance connections to the computer.
The Advanced Button enables the user to Allow this computer to be controlled
remotely. The maximum time a request remains open can be set as well as the
operating systems that can use the service. When enabled, the user can send requests
for assistance to trusted parties and allow them to troubleshoot any problems
while they watch. See these options in the screenshots below:


Remote Desktop is enabled in the same settings box shown
above. However, this program enables authenticated users to completely control
the computer, locking the local PC during the process. This is most effective
when users are allowed to work remotely by connecting to their desktop from another

Windows Defender
Firewall does not automatically allow these connections. In order to allow
these connections, open Control Panel and then Windows Defender Firewall. Find
the Allow an app or feature through Windows Defender Firewall menu from the
upper left panel. If necessary, click the Change settings button. In the
example, below these apps are already allowed.

Allow an
app or feature through Windows Defender Firewall


The Telnet protocol essentially creates a virtual terminal or
command line interface with a remote terminal device. In the beginning, Telnet enabled
remote users to access information and even control routers and switches. Telnet
uses unencrypted connections so on Linux systems, this insecure connection
method has been neglected in favor of the more secure SSH (Secure Shell) that
only uses encrypted connections. By default, SSH is enabled
in Windows and Telnet is a client app. the Windows Telnet client, which uses
SSH. this needs to be enabled from Control Panel.

Third-party tools

On a secure network, consider that Remote Desktop and Remote
Assistance require port 3389 (by default) to be opened which poses a security
risk. Third-party software eliminates this risk by operating on port 80 through
the internet browser. Since the port is already open and secure, other
resources do not need to be compromised.

Some third-party apps are free while others require a
subscription. Popular apps include GoToMyPC, LogMeIn, and the RemotePC app
shown below. In this case, the app must be installed on the remote host and the
client. From this page, many remote computers and servers are securely accessible.


Security considerations of each access method

The security aspects of the access methods are covered within the topics above.

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If you have followed all of the posts, you have finished the
final A+ 220-1002 test objectives! Quite a lot of ground has been covered over
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(hopefully) digestible manner, please remember that this is not the only tool
in your preparation toolkit. Use every resource available to you and master
each objective point. Get a copy of the actual A+ test objectives and compare
your knowledge against it. Use textbooks and online resources to strengthen
your understanding. Take the test only when you are ready.

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