COT410 LAN Fundamentals
Week 1 Worksheet (WS1)
Unit 1 / Unit 2 Assignments
Name: ___Matt Phaneuf_________
The worksheet is a guide you should use to assure that all work for the week is completed properly. You
should complete the assignment worksheet, then, post the worksheet in the proper Bb weekly folder.
Please label all submitted files using the format: [first initial & last name]-[COT410WSx]. Example:
nstudent-COT410WS1
Unit 1 Network Basics
Preparation
Unit time: 150 minutes
Preparation: CompTia Network+, read pages 1-1 through 1-57
Assignments
Topic A: Network Concepts
Complete A-1: Describing networking models and protocols, questions 1, 2 and 3 on page 1-7. (6 points)
Item
1.
2.
3.
Answer
Authentication is different, programs/data stored locally vs. on a server, permissions and
responsibility differ as well.
Security, speed of network, backing up data, authentication and monitoring, shared resources
A small one
Complete A-5: Describing wireless networking, questions 1and 2 on page 1-19. (4 points)
Item
1.
2.
Answer
Radio waves or infrared light
Security, distance to access points, bandwidth, location, number of users, cost
Complete A-6: Comparing network protocols used on Windows clients, questions 1-5 on page
1-22. (10 points)
Item
1.
2.
3.
4.
5.
Answer
IPX/SPX
TCP/IP
NetBEUI
WiFi, Bluetooth, 802.11a, WiMAX
No
February 10, 2011
1|Page
Topic B: Network architectures
Complete B-1: Describing physical network topologies, questions 1-6 on page 1-31. (12 points)
Item
1.
2.
3.
4.
5.
6.
Answer
Star, ring, hybrid
Bus
Bus
Mesh
Useful for constructing large networks with minimal wiring
Point to Point has a dedicated transmission line between nodes
Complete B-2: Describing Ethernet standards, questions 1-6 on page 1-36. (12 points)
Item
1.
2.
3.
4.
5.
6.
Answer
10GbE
BASE-X,R,W
STP, UTP, or Fiber
10GBASE-ZR or 10GBASE-ZW
UTP CAT5,5e, or 6
1000BASE-T Requires all four pairs
Complete B-4: Discussing WAN bandwidth technologies, questions 1-8 on page 1-51. (16 points)
Item
1.
2.
3.
4.
5.
6.
7.
8.
Answer
E is European
6000 ft
Option for organizations that don’t need a full T1 line
Dividing data into packets and sending each packet individually
X.25 and Frame Relay
Asynchronous Transfer Mode, uses fixed length packets of 53 bytes, can achieve throughput of
622Mbps
High speeds and packet routes are determined before they are sent
Highly reliable, secure
Topic C: The OSI Model
Complete C-1: Analyzing the OSI model questions 1-6 on page 1-55. (14 points)
Item
1 Down
2 Across
2 Down
3 Across
4 Down
5 Down
6 Across
Answer
Data Link
Physical
Presentation
Application
Session
Network
Transport
February 10, 2011
2|Page
February 10, 2011
3|Page
Complete Unit 1 review questions, pages1-56 through 1-63 (88 points)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
B
A
C
segments
C
C
B
A
D
Backbone
Twisted Pair
E
B,C
Filtering
B
D
A
C
B
False
True
Bus
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
False
Mesh
Point to Point
C
D
D
Bonding
False
A,D
CSMA/CA
TOKEN
Relatively Short
True
F
C
D
B
C
F
D
C
A
Unit 2 Wired computer-to-computer connections
Preparation
Unit time: 135 minutes
Preparation: CompTia Network+, read pages 2-1 through 2-56
Complete Unit 2 review questions, pages 2-51 through 2-55. (46 points)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
D
B
E,F,G,H
B
Multi-mode
E
C
D
C
A,B,D,E
B
B
February 10, 2011
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
Plenum
D
False
C
B
DNS
NetBIOS
True
A
True
False
4|Page
LabSim Labs
Preparation
1. Using the Quick Start Guide for Students located in the Week 1 folder of Blackboard, access
LabSim either through a Web Browser or by Installing the Client.
2. Go to http://www.labsimonline.com to directly access your LabSim account through a browser or
download the LabSim Windows client software at
http://testout.com/support/download/labSimOnlineSetup.exe .
3. Create a LabSim Account
4. Log In
5. Activate Additional LabSim Courses
6. Associate Your Student Account with a Campus and a Class
Complete the following LabSim Resources and Labs
0.0 Introduction
0.1 Course Introduction
0.1.1 Network+ Introduction
0.2 Using the Simulator
0.2.1 Using the Simulator
0.2.2 Explore a Single Location in a Lab (6 points)
0.2.3 Using the Simulator in Multiple Locations
0.2.4 Explore Multiple Locations in a Lab (5 points)
1.0 Networking Basics
1.1 Networking Overview
1.1.1 Introduction to Networking
1.1.2 Network Types
1.1.3 Networking Terms
1.1.4 Networking Facts
1.1.5 Exam Questions-Section 1.1 (2 points)
1.2 Network Topologies
1.2.1 Network Topologies
1.2.2 Topology Facts
1.2.3 Exam Questions-Section 1.2 (11 points)
1.3 Protocols
1.3.1 Network Architectures
1.3.2 Network Architecture Facts
1.3.3 TCP/IP Protocol Suite
1.3.4 Common TCP/IP Protocols
1.3.5 Exam Questions-Section 1.3 (10 points)
1.4 Network Connections
1.4.1 Network Connections
1.4.2 Configuring TCP/IP Properties
1.4.3 Configure TCP/IP Settings
1.4.4 Configure TCP/IP Settings (4 points)
February 10, 2011
5|Page
1.5 The OSI Model
1.5.1 The OSI Model
1.5.2 OSI Model Facts
1.5.3 OSI Model Layers
1.5.4 OSI Model
1.5.5 OSI Layer Facts
1.5.6 Exam Questions-Section 1.5 (15 points)
2.0 Cables and Connectors
2.1 Twisted Pair
2.1.1 Twisted Pair
2.1.2 Twisted Pair Facts
2.1.3 Connect to an Ethernet Network (2 points)
2.1.4 Exam Questions-Section 2.1 (6 points)
2.2 Coaxial Cable
2.2.1 Coaxial
2.2.2 Coaxial Cable Facts
2.2.3 Connect a Cable Modem (4 points)
2.2.4 Exam Questions-Section 2.2 (6 points)
2.3 Fiber Optic
2.3.1 Fiber Optic
2.3.2 Fiber Optic Facts
2.3.3 Connect Fiber Optic Cables 1 (4 points)
2.3.4 Connect Fiber Optic Cables 2 (4 points)
2.3.5 Exam Questions-Section 2.3 (9 points)
Case Projects – Critical Thinking
Case Project 1 (20 points)
You are employed as a network consultant at Network Design Consultants. Your
company consists of 15 consultants who assist all types of organizations with issues
involving network planning, design, installation, and troubleshooting. The company
works on national and international projects, depending on the currently active pool of
clients.
Your present assignment is to help a small advertising firm, Harrison and Associates, to
consider their options for designing a network. There are eight people in the firm: seven
advertising consultants and one office coordinator. Each person has a computer at her
or his desk and every computer has a printer. Harrison and Associates represents a
classic small-office situation.
February 10, 2011
6|Page
Question 1-1: A Preliminary Design Step
As a first step in the design process, what information would you gather about Harrison
and Associates?
Answer: (provided as an example)
A preliminary design step is to ask questions and strive to understand as much as
possible about this firm, its business needs, and what the firm wants to accomplish with
its network. Here are some general steps:







Determine the types of computers in use and their locations.
Determine what software applications are used and what network resources are
needed to run those applications.
Learn the business patterns in the organization and how those business patterns are
associated with network use.
Estimate the anticipated high and low network use periods for the firm.
Consider what features can be designed into the network to make troubleshooting
and maintenance easier.
Assess what type of security is needed.
Determine the growth that is anticipated in the organization, and in what areas that
growth will affect network resources.
Question 1-2: Creating a Report About Network Topologies (10 points)
To help prepare the way for the design you plan to suggest, discuss with the firm’s
management the concept of network topology and the different types of topologies
available.
Answer(s): There are different types of topologies available to use. Bus topology
is where each computer would be in line with the next. It’s inexpensive to setup,
but if one computer is disconnected from the network, then that’s where the
traffic stops. Token ring network could be used where the data is constantly
flowing throughout the ring. It’s physically setup as a star topology, but the data
constantly follows the ring instead of directly going to its destination. The mesh
topology could be used as its very fault tolerant but requires multiple NIC’s on
each node. The star topology would utilize a central hub/switch that would
connect to each node. If a single node fails, the network survives, but if the
hub/switch fails then the network goes down.
Question 1-3: Recommending a Topology for the Network Design (10 points)
Which topology do you recommend for Harrison and Associates’ network and include
why you recommend it.
Answer: I would recommend using a star topology for this design utilizing at least
a 16 port switch to accommodate for future growth of the firm. This makes the
most sense due to the amount of users and also gives the ability to eventually
February 10, 2011
7|Page
setup a client/server model for the firm instead of the current peer to peer setup.
There should be some sort of backup storage capability for the firm, even if it’s
just a network storage device instead of a full-fledged server. I would also
recommend that the firm looks into a network printer/scanner/copier machine that
everyone could use. They won’t have to give up their personal printers that they
each have at their desk, but having a large unit setup for mass printing/copying
and having electronic scanning/email capabilities would help streamline many
office procedures.
Case Project 2 (24 points)
In the following assignments, you consult for the newsroom of the Franklin Daily Herald,
a newspaper in a mid western city. All 17 of the news reporters have computers, and
now their management has funded a project to network their computers and provide
Internet access to the network. Having a network will enable the reporters to more
easily collaborate on stories and exchange information. And it will save time for the
news editor who checks all news articles before they are printed. The newsroom
network will also connect to an existing network in the pressroom.
Question 2-1: Implementing a Network Transport Method (10 points)
One member of the newspaper’s management wants to implement token ring for this
network. What is your recommendation and how would you explain it to the
management?
Answer: I would politely remind him that he hired us to build the most efficient,
usable network for the newspaper and that token ring topology has not been
widely used since the early 90’s and further lost its credibility in 1998 when Cisco
Systems chose not to pursue IBM’s High Speed Token Ring (HSTR) choosing
Ethernet instead. I would then refer the management to this article:
http://www.techrepublic.com/blog/classic-tech/does-anyone-actually-still-usetoken-ring/115 if they would like to read more about it.
Question 2-3: Questions about the OSI Model (14 points)
February 10, 2011
8|Page
Brett Mason, a new colleague with whom you are working at Network Design
Consultants, is unsure about some aspects of the OSI model. He has a list of questions
for you and asks that you develop a table that he can use as a reference for the
answers. Create a table containing two columns and seven rows. Label the left column
“Network Function,” and label the right column “OSI Layer.” Enter each of the following
functions in its own row under the left column and then specify the OSI layer that
performs that function under the right column. Brett’s questions about functions are as
follows:
Which layer resizes frames to match the receiving network?
Which layer performs data compression?
Which layer ensures data is received in the order it was sent?
Which layer handles the data-carrying signal?
Which layer provides file transfer services?
Which layer enables routing?
Which layer enables the receiving node to send an acknowledgment?
Answer:
OSI Layer
Network Function
Which layer resizes frames to match the receiving network?
Which layer performs data compression?
Application
Which layer ensures data is received in the order it was sent?
Presentation
Transport
Which layer handles the data-carrying signal?
Physical
Which layer provides file transfer services?
Data Link
Which layer enables routing?
Which layer enables the receiving node to send an acknowledgment?
Network
February 10, 2011
Session
9|Page
Case Project 3 (15 points)
Prairie Press is a publishing company that produces books of fiction. The company
employs 32 people and has offices on three floors in a downtown building. Each
employee uses Windows XP Professional on a desktop or laptop computer. Prairie
Press has two servers running Windows Server 2003 plus a Linux Web server.
Currently, each floor in their building is wired using Category 5e UTP cable. Their
communications devices are older half-duplex hubs and switches employing 10BaseT
throughout the building—on each floor and between floors. The building is scheduled for
renovations and Prairie Press hires you through Network Design Consultants to assist
in a new network design for a cabled network.
Question 2-1: Desktop Cabling (5 points)
You recommend 100 Mbps communications to the desktop and laptop computers on
each floor. What cable medium can be used?
Answer: Either Cat 5, Cat5e or Cat6
Question 2-2: Fat Pipe Cabling (5 points)
What cabling do you recommend for linking the networks on each floor of the building?
What are the advantages of the cabling that you recommend?
Answer: I would recommend using a fiber optic backbone between floors. This
will prevent bottlenecks in the network and keep it running smoothly. Also,
keeping the three floors on their own VLANS will keep traffic where it belongs.
Instead of rewiring the entire building they can keep their Cat5e UTP and just get
updated switches for each floor. (with 100BASE-FX ports to connect the switches
together)
Question 2-3: Connecting the Servers to the Network (5 points)
What cabling options do you recommend for connecting the three servers to the
network?
Answer: I would house the servers on each floor close its respective switch via
fiber optic multi-mode cabling as well. This will allow for high speed data transfer
directly to the switch and nodes requesting data.
Additional Assignment Requirements
February 10, 2011
10 | P a g e
____ Participate in DQ 1.1 and DQ 1.2
____ Complete Unit 1 Quiz
____ Complete Unit 2 Quiz
February 10, 2011
11 | P a g e