Name __Derek So___________________________ Date ________________
Chapter 1
Student Version
Chapter 1 Objectives:
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Explain how multiple networks are used in everyday life.
Explain the topologies and devices used in a small to medium-sized business network.
Explain the basic characteristics of a network that supports communication in a small to medium-sized
business.
Explain trends in networking that will affect the use of networks in small to medium-sized businesses.
1.1 Globally Connected
1. What is the IoE or Internet of Everything?
IoE is the intelligent connection of people, process, data and things. The Internet of Everything (IoE)
describes a world where billions of objects have sensors to detect measure and assess their status; all
connected over public or private networks using standard and proprietary protocols.
2. What is the human network?
The human network can be defined as emergence of a profound administrative system which is
structured via our interaction using technology such as computers and cellphones.
3. List some of the forms of communications that can be accessed by a global audience.
a. Instant Messaging/ Texting
b. Social Media
c. Collaboration Tools
d. Weblogs (Blogs)
e. Wikis
f. Podcasting
g. Peer-to-Peer (P2P) File Sharing
4. What is the purpose of a SOHO or Small Office/Home Office?
A SOHO Network is a Small Office/Home Office Network. It enables computers within a home
office or a remote office to connect to a corporate network or access to centralized, shared
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resources. Individuals who work from home including self-employed entrepreneurs and those
who work away from an office.
5. What is the simplest peer-to-peer network?
The simplest peer-to-peer network consists of two directly connected computers using a wired or
wireless connection.
6. What are the advantages of peer-to-peer networking?
a. Easy and simple to set up only requiring a hub or a switch to connect all computers together.
b. The peer to peer network is less expensive.
c. It is not require for the peer to peer network to use the dedicated server computer. Any computer on
the network can function as both a network server and a user workstation.
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d. The peer to peer network extends to include new clients easily. This benefit makes these networks
more flexible than client-server networks.
7. What are the disadvantages of peer-to-peer networking?
a. A computer can be accessed anytime.
b. Network security has to be applied to each computer separately.
c. Backup has to be performed on each computer separately.
d. No centralized server is available to manage and control the access of data.
1.2 LANs, WANs, and the Internet
8. List the three network infrastructure categories of network components?
a. devices
b. media
c. services
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9. List examples of intermediary network devices.
a. firewalls
b. wireless AP
c. switches
d. routers
10. Processes running on the intermediary network devices perform what functions?
a.
b.
c.
d.
e.
f.
Regenerate and retransmit data signals
Maintain information about what pathways exist through the network and internetwork
Notify other devices of errors and communication failures
Direct data along alternate pathways when there is a link failure
Classify and direct messages according to quality of service (QoS) priorities
Permit or deny the flow of data, based on security settings
11. What is network media?
Network media refers to the communication channels used to interconnect nodes on a computer
network.
12. What are the three most common types of media?
a. Copper
b. Fiber Optic
c. Wireless
13. List and explain the two types of topology diagrams.
 Physical topology diagrams - Identify the physical location of intermediary devices, configured ports,
and cable installation.
 Logical topology diagrams - Identify devices, ports, and IP addressing scheme.
14. Explain the two most common types of network infrastructures.
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Local-area network (LAN) - A network infrastructure that provides access to users and end devices in a
small geographical area.
Wide-area network (WAN) - A network infrastructure that provides access to other networks over a
wide geographical area.
15. Local Area Networks (LANs) are a network infrastructure that spans a small geographical area. Explain what
specific features LANs include:
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a. LANs interconnect end devices in a limited area such as a home, school, office building, or
campus.
b. A LAN is usually administered by a single organization or individual. The administrative
control that governs the security and access control policies are enforced on the network
level.
c. LANs provide high-speed bandwidth to internal end devices and intermediary devices.
16. Wide Area Networks (WANs) are a network infrastructure that spans a wide geographical area. WANs are
typically managed by service providers (SP) or Internet Service Providers (ISP). Explain what specific features
WANs include:
a. WANs interconnect LANs over wide geographical areas such as between cities, states,
provinces, countries, or continents.
b. WANs are usually administered by multiple service providers.
c. WANs typically provide slower-speed links between LANs.
17. Explain the following terms:
a. Intranet is a private network that can only be accessed by authorized users. The prefix "intra"
means "internal" and therefore implies an intranet is designed for internal communications.
b. Extranet is a controlled private network that allows access to partners, vendors and suppliers
or an authorized set of customers – normally to a subset of the information accessible from an
organization's intranet.
1.3 The Network as a Platform
18. Explain what a converged network is?
Network convergence is the efficient coexistence of telephone, video and data communication within a
single network. The use of multiple communication modes on a single network offers convenience and
flexibility that are not possible with separate infrastructures.
19. What is redundancy?
Network redundancy is a process through which additional or alternate instances of network devices,
equipment and communication mediums are installed within network infrastructure. It is a method for
ensuring network availability in case of a network device or path failure and unavailability.
20. What is scalability within a network infrastructure?
Scalability is the ability of a system, network, or process to handle a growing amount of work in a
capable manner or its ability to be enlarged to accommodate that growth, it means that you are prepared
to handle an increasing number of customers, clients, and/or users.
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21. What is Quality of Service?
Quality of service (QoS) refers to any technology that manages data traffic to reduce packet loss, latency and
jitter on the network.
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