Guide Network+ to Networks, 4th Edition
Solutions 15 - 1
Network+ Guide to Networks, 4th Edition
Chapter 15 Solutions
Review Questions
1. In project planning, what is the purpose of a milestone?
c. to mark the completion of a major task or group of tasks
2. In a project to install a new mail server and upgrade the version of Sendmail used on
a network, which of the following stakeholders would also be a sponsor?
d. the IT manager who approves the purchase of a new mail server
3. Which predefined process can help you recover when a project suffers a setback?
a. contingency planning
4. What view of a project plan depicts tasks on a horizontal timeline?
b. Gantt chart
5. In any networking project, which of the following implementation steps should come
first?
d. Identify the need for a project.
6. You have researched a new type of switch and proved that upgrading your switches to
this model is feasible. What step do you take next before replacing your old switches?
b. Evaluate the new switch on a pilot network that mimics your network
environment.
7. Which of the following is an example of test criteria that can be used to accurately
evaluate the success of an organizations network backbone upgrade?
d. Did the change result in a 30% reduction in the time that it takes for data to
travel from the router in building A to the router in building B?
8. Which of the following practices creates a starting point for ongoing evaluation of your
networks health?
c. baselining
9. You work for a medical transcription company that contracts with hundreds of
transcriptionists across the country. The transcriptionists connect to your network over a
VPN that provides remote access services. Employees work at all times of the day or
night, and not all of the transcriptionists are connected at the same time. Further, the
number of transcriptionists the company hires at any time depends on a variable
workload. You need to determine whether to increase the number of licenses on your
remote access server. Which of the following variables would you configure your
network management application to track over time to help you find your answer?
c. number of users connected to the remote access server
Network+ Guide to Networks, 4th Edition
Solutions 15 - 2
10. You suspect that one of your networks two redundant core switches has a NIC or
cable thats experiencing transmission problems. Supposing you never obtained a
baseline for traffic on this switch, which of the following measurements would help you
verify your suspicion?
d. total bits per second traveling through the affected switch, compared to total
bits per second traveling through the redundant switch
11. Which of the following protocols is commonly used for communication between
network management agents and applications?
a. SNMP
12. An asset management database should include which of the following? (Choose all
that apply.)
a. serial number for every server on the network
b. model number for every router, switch, and hub on the network
13. The routine that collects management information on a device is also known as:
d. an agent
14. How does a software patch differ from an upgrade?
c. A patch is designed to make minor corrections or enhancements, whereas an
upgrade replaces most, if not all, of the software code.
15. Under what circumstances should a network administrator inform users of a software
change?
b. when the change might affect applications or utilities on which the users rely
16. What term do networking professionals use to refer to reversing a software upgrade?
b. backleveling
17. Which of the following is the best way to reverse a network operating system
upgrade?
d. Restore the servers software and configuration from a backup.
18. What does Microsoft call its significant operating system patches?
a. service packs
19. You work at a small insurance agency. You are considering replacing the wire-bound
10BASE-T network with an 802.11g network. You the proved proposed project is
feasible, assessed needs, and developed a project plan. Next, you are ready to install a
pilot network. Which of the following is critical for this pilot network to be an accurate
test of your proposed 802.11g solution?
d. an access point
20. Which of the following pieces of information must you collect when establishing a
Network+ Guide to Networks, 4th Edition
Solutions 15 - 3
baseline for the performance of a WAN link?
c. average daily traffic traveling over the link
Hands-On Projects
Project 15-1
In this project, students begin creating a project plan in Microsoft Project 2003 by
creating tasks and assigning start and finish dates and predecessors to each task.
This project requires workstations running Windows XP with the Microsoft
Project 2003 software installed. (Microsoft Project 2003 is available in a trial
version at no cost from Microsoft; at the time of this writing, the software could
be downloaded from the following Web site:
www.microsoft.com/office/project/prodinfo/trial.mspx).
Project 15-2
In this project students continue refining the project plan they created in Hands-on
Project 15-1 by using Microsoft Project 2003s Gantt Chart Wizard to create a
Gantt chart.
Project 15-3
In this project, students continue to elaborate on the project plan they created in
Hands-on Project 15-1 by assigning resources and adding milestones.
Case Projects
Case Project 15-1
The answers to this project will differ; its highly subjective and in reality, the first
thing the student should say is that she doesnt have enough information to make
informed decisions. Thus, the student should suggest that baselining and asset
management data, plus call tracking records will need to be compiled and
analyzed before making a decision. These will identify where the companys
technology is lagging behind and where the potential points of failure could be
fixed. For example, in this instance, it looks as if the company will want to spend
more money on WAN infrastructure (either lines or a better solution, such as
terminal servers) and beefing up the servers (probably so that they can
accommodate Windows Server 2003). In addition, they will want to spend money
on security practices, including perhaps a proxy server and firewall, with the
correct development to make them secure. If the company is still running a mix of
NetBIOS and TCP/IP, it will probably want to spend the money to transfer all
services to TCP/IP. Whatever the recommendations, the important thing is that the
student define her process of coming to those recommendations.
Case Project 15-2
Answers will vary, but the student should write a proposal that is very specific,
addresses why she asks for certain features, and suggests a format (perhaps Web-
Network+ Guide to Networks, 4th Edition
Solutions 15 - 4
based, integrated with a current call tracking system) that will be easily used and
expandable for future needs.
Case Project 15-3
The student should recognize that reversing an operating system upgrade is the
last resort. If the billing system seemed to work during testing with NetWare 6.5,
she should recommend continuing to test it for a while, to make sure that the
upgrade really did cause a problem, then evaluating the severity of that problem.
If it will impact profitability or customer service, she might consider reversing the
upgrade. But if it is an annoyance or a minor problem, and this is the only
program that the upgrade seemed to have affected, she might attempt to make the
billing system work with the new operating system. The student should be aware
that reversing an operating system upgrade may take longer than actually
installing it, so if one decides to reverse and begin it at midnight, the server might
not be back to normal until after staff start coming in. A better solution would be
to limp along with the upgraded system, if possible, and wait until the next night
to backlevel the system.