CompTIA exam study guide presentations by instructor Brian Ferrill, PACE-IT (Progressive, Accelerated Certifications for Employment in Information Technology) "Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53" Learn more about the PACE-IT Online program: www.edcc.edu/pace-it

1. Supporting
configuration
management II.

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Instructor, PACE-IT Program – Edmonds Community College
Areas of Expertise Industry Certification
 PC Hardware
 Network Administration
 IT Project Management
 Network Design
 User Training
 IT Troubleshooting
Qualifications Summary
Education
 M.B.A., IT Management, Western Governor’s University
 B.S., IT Security, Western Governor’s University
Entrepreneur, executive leader, and proven manger
with 10+ years of experience turning complex issues
into efficient and effective solutions.
Strengths include developing and mentoring diverse
workforces, improving processes, analyzing
business needs and creating the solutions
required— with a focus on technology.

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– Backups.
– Bring your own device.
PACE-IT.

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Supporting configuration management II.

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Backups are an essential
part of any configuration
management (CM) system.
Small changes in a network device’s configuration can introduce
unexpected consequences into the network. In addition, there is
always the possibility of a failure of a key component, which can
lead to the loss of data or functionality.
Backups play a key role in recovering from unexpected
consequences or from the failure of a component. Backup
schedules must be implemented and periodic tests should be
conducted to ensure that the backup process is working.
Supporting configuration management II.

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– Types of backups.
» Full: all data on the targeted system is backed up.
• Slowest backup method with the highest storage
requirements, but leads to the fastest recovery method.
• Recovery only requires the full backup file.
» Incremental: only the new or modified files are backed
up.
• Fastest backup method with the lowest storage
requirements, but leads to the slowest recovery
method.
• Recovery requires the last full backup file and all of the
incremental backup files.
» Differential: only data that has changed since the last
full backup is saved.
• Time to backup is moderate, requires a moderate
amount of storage, but also is the middle ground on the
length of time for recovery.
• Recovery requires the last full backup file and the last
differential backup file.
Supporting configuration management II.

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The configuration files of a
network device should also
be backed up.
Once a network device (e.g., a router or switch) has
been configured and is operating as expected, a
backup of the configuration files and operating
system should be done.
This helps to speed up the recovery time in cases of
equipment failure or when a change to the
configuration has introduced unexpected
consequences.
Supporting configuration management II.

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Supporting configuration management II.

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Bring your own device
(BYOD) policies allow
employees to use their
personal devices on an
organization’s network.
While the employees are happy that they get to use their favorite
IT devices on the corporate network, IT departments aren’t quite
as happy about it, as they have to deal with any consequences.
IT departments are tasked with keeping a network safe, yet they
have very little control over the devices that employees bring in.
In some cases, BYOD policies have led to the introduction of
malware into an organization’s network environment.
Network Admission Control (NAC) has been implemented in an
effort to reduce the risks associated with BYOD policies and to
introduce CM to those devices.
Supporting configuration management II.

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– NAC (Network Admission Control).
» NAC is a Cisco process; Microsoft uses Network Access
Protection (NAP).
• The names may be different, but the functions are similar.
» Includes more than just authenticating users and devices on
the network.
» All devices requesting access to network resources are
screened for:
• Type of device.
• Operating system used, including updates.
• Security software, including updates.
• Presence of malware.
• Other security vulnerabilities.
» In some cases, if the connection request has been rejected, the
device is redirected to a remediation server, which attempts to
resolve the known issue.
Supporting configuration management II.

11. Page 11
Supporting configuration management II.
Backups play an important role in any CM system. Backups are used to
recover from failed system components or loss of data. Backups may be
full, incremental, or differential in nature. Each has its own advantages and
disadvantages. Network devices should have their operating systems and
configuration files backed up as well.
Topic
Backups.
Summary
BYOD allows employees to bring in and use their favorite devices on an
organization’s network. Since IT departments are responsible for the IT
security of networks, this has led to some concerns. NAC is implemented in
order to help ensure that BYOD policies do not introduce problems to the
network. NAC screens devices for their suitability to join and use network
resources.
Bring your own device.

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THANK YOU!

13. This workforce solution was 100 percent funded by a $3 million grant awarded by the
U.S. Department of Labor's Employment and Training Administration. The solution was
created by the grantee and does not necessarily reflect the official position of the U.S.
Department of Labor. The Department of Labor makes no guarantees, warranties, or
assurances of any kind, express or implied, with respect to such information, including
any information on linked sites and including, but not limited to, accuracy of the
information or its completeness, timeliness, usefulness, adequacy, continued availability
or ownership. Funded by the Department of Labor, Employment and Training
Administration, Grant #TC-23745-12-60-A-53.
PACE-IT is an equal opportunity employer/program and auxiliary aids and services are
available upon request to individuals with disabilities. For those that are hearing
impaired, a video phone is available at the Services for Students with Disabilities (SSD)
office in Mountlake Terrace Hall 159. Check www.edcc.edu/ssd for office hours. Call
425.354.3113 on a video phone for more information about the PACE-IT program. For
any additional special accommodations needed, call the SSD office at 425.640.1814.
Edmonds Community College does not discriminate on the basis of race; color; religion;
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status; or genetic information in its programs and activities.