CompTIA N +
Exam: N10-007
Eng. Walid Mahmoud Dahbour
King Saud University
Certified Professional Trainer (CPT)-(TTT)-(TOT)
CISCO Academy Instructor
Microsoft Academy Instructor
Chapter- 1
Networks and Their Basic Components
Cyber Security Trainer
MTA- MOS Trainer
CompTIA Network+ Trainer
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Chapter Topics
Objectives
• What is the purpose of a network?
• What are some examples of network components?
• How are networks defined by geography?
• How are networks defined by topology?
• How are networks defined by resource location?
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Defining a Network
• A (computer) network is an interconnection of two or more computing devices.
• It can serve a variety of purposes including:
- File sharing between two computers
- Video chatting across different parts of the world
- Surfing the Web
- Instant messaging (IM) between computer with IM software installed.
- E-mail
- Voice over IP (VoIP)
- A converged network is one that transports multiple forms of traffic (video, voice, and
data)
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Network Components: 1-1
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Network Components
The network components are:
• The physical elements, or hardware such as a laptop, switch, router, wireless access point, the
cabling used to connect the devices, … etc.
• The services, called software, that provide information in response to a request like email hosting
services and web hosting services.
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Physical Components of the Network:
• End Devices or Hosts: These devices form the interface between users and the underlying
communication network. Examples of end devices are Computers (work stations, laptops, file
servers, web servers), Network printers, VoIP phones, Mobile handheld devices, and … etc.
– A host device is either the source or destination of a message transmitted over the network.
• Intermediary Network Devices: Intermediary devices connect the individual hosts to the
network and can connect multiple individual networks to form an internetwork. Examples of
intermediary devices are switches, wireless access points, routers, firewalls, and … etc.
– These devices use the destination host address to determine the path that messages should take
through the network.
• Network Media: The medium provides the channel over which the message travels from
source to destination. The three types of media are Copper, Fiber Optic, and Wireless.
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Network Representations:
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Network Interfaces Card (NIC):
• NIC: is a device installed in a computer, printer, or any other network component
so they can be connected to a network.
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Network Components
•Client: The term client defines the device an end user uses to access a network.
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Network Components
•Server: A server provides resources to a network. (Email, Web pages, or files)
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Hub:
• is a device that contains multiple ports to connect multiple computers or network
devices to each other. When a computer transmit data through a hub, the hub will
broadcast the data to all other computers attached to it.
Broadcast: the data are sent to every device on a network.
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Switch:
• Switch: is a device that contains multiple ports to connect multiple
computers or network devices to each other. Unlike hub, switch can
send the data to only the destined computer.
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Bridge:
• Bridge: we can say that the bridge is the old version of the switch, where the
bridge works almost like the switch.
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Router:
•
Router: is a device whose primary purpose is to connect two or more networks and determine the next
network point to which the data should be forwarded toward its destination.
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Wireless Access Point (WAP)
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Media:
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Wide Area Network (WAN) Links
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Network Resources: 1-2
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Network Resources
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Network Resources
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Network Resources
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Network Resources
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Network Resources
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Network Resources
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Network Geography: 1-3
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Network Geography
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Network Geography
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Network Geography
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Network Geography
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Network Geography
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Network Geography
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Wired Network Topology: 1-4
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Wired Network Topology
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Wired Network Topology
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Wired Network Topology
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Wired Network Topology
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Wired Network Topology
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Wired Network Topology
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Wired Network Topology
Simulation of Network Topology
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Wireless Network Topology: 1-5
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Wireless Network Topology
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Wireless Network Topology
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Wireless Network Topology
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Internet of Things (IoT): 1-6
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Internet of Things (IoT)
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IoT Technologies
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IoT Technologies
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Chapter 1- Questions:
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Question#1:
In a standard Cisco network diagram, what component does the symbol in the
figure represent?
A. A hub
B. A switch
C. A router
D. A gateway
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Question#2:
Many network diagrams use Cisco symbols to illustrate the locations and
relationships between network components. Cisco symbols are standardized
pictographs that illustrate the basic function of a network component. In a
network diagram that uses Cisco symbols, what component does the symbol in the
figure represent?
A. A hub
B. A switch
C. A router
D. A gateway
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Question#3:
Can two connected computers be considered a network?
A. Yes.
B. No.
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Question#4:
The internet is what type of networks?
A. PAN.
B. LAN.
C. WAN.
D. CAN.
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Question#5:
_____ Area network covers a large geographical area
A. Local.
B. Metropolitan.
C. Wide.
D. Web.
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Question#6:
Every NIC has a unique serial number called a...
A. WAN
B. MAC address
C. IP address
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Question#7:
MAC stands for …………
Media Access Control
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Question#8:
A NIC is...
A. A computer card that offers dedicated full time access to the network.
B. A computer card that offers as needed access to the internet.
C. A computer card that offers a modem connection.
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Question#9:
NIC stands for …………
Network Interface Card
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Question#10:
A Firewall considered as:
A. End Device.
B. Intermediary Device.
C. Network Media.
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Question#11:
In computer networking, the term "Collision" refers to a situation in which two or
more demands are made simultaneously on an equipment that can handle only
one request at any given moment.
A. True.
B. False.
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Question#12:
Which of the following network topologies is most commonly used in
contemporary Ethernet LANs?
A. Bus topology
B. Star topology
C. Ring topology
D. Mesh topology
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Question#13:
A network topology in which each node connects to exactly two other nodes is
referred to as:
A. Partial mesh topology
B. Ring topology
C. Full mesh topology
D. Star topology
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Question#14:
A network topology in which each node has a direct physical connection to every
other node is known as:
A. Star
B. Partial mesh
C. Bus
D. Full mesh
E. Ring
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Question#15:
Which type of network topology provides the highest level of redundancy?
A. Star
B. Bus
C. Mesh
D. Ring
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Question#16:
Which of the following answers lists the number of connections in a full mesh
network consisting of 10 nodes?
A. 21
B. 28
C. 36
D. 45
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Question#17:
In which type of network topology, the main network cable becomes a single point
of failure?
A. Star
B. Full mesh
C. Bus
D. Partial mesh
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Question#18:
A network connecting computers within a small geographical area such as a
building or group of buildings is known as:
A. PAN
B. LAN
C. MAN
D. WAN
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Question#19:
A type of network consisting of computers and peripheral devices that use highfrequency radio waves to communicate with each other is called:
A. MAN
B. WLAN
C. LAN
D. VLAN
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Question#20:
A computer network connecting multiple LANs over an area of a city or campus is
referred to as:
A. PAN
B. LAN
C. MAN
D. WAN
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Question#21:
In terms of size and reach, a Metropolitan Area Network (MAN) can be placed
between a LAN (smaller type of network) and a WAN (larger type of network).
A. True
B. False
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Question#22:
A computer network connecting multiple smaller networks over very large
geographical areas is known as:
A. PAN
B. LAN
C. MAN
D. WAN
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Question#23:
The Internet is an example of a large public WAN.
A. True
B. False
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Question#24:
A wireless networking topology in which client devices communicate directly with
each other without the use of a controlling Access Point (AP) is called:
A. IEEE 802.3af
B. Star topology
C. Ad hoc mode
D. IEEE 802.3at
E. Infrastructure mode
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Question#25:
A wireless networking topology consisting of at least one Access Point (AP) is
referred to as:
A. IEEE 802.3af
B. Star topology
C. Ad hoc mode
D. IEEE 802.3at
E. Infrastructure mode
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Question#26:
Which of the answers listed below refers to a wireless protocol designed to
provide communication between appliances in a home automation network?
A. FCoE
B. SDN
C. Z-Wave
D. SIEM
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Question#27:
An emerging field of new technologies, such as wearable tech or home
automation is known as:
A. SoC
B. NFC
C. IoT
D. ESN
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Question#28:
A type of limited-range computer network used for data transmission among
various types of personal devices is generally referred to as:
A. PAN
B. LAN
C. SAN
D. MAN
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Question#29:
A dedicated local network consisting of devices providing data access is called:
A. PAN
B. CAN
C. SAN
D. MAN
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Question#30:
Which of the following answers refers to a wireless connectivity technology used
for monitoring sensor data collected from low-powered sports and fitness
equipment?
A. CAN
B. WTLS
C. UAV
D. ANT+
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Question#31:
A popular, short-range wireless technology used for connecting various personal
devices in a WPAN is called:
A. 802.11
B. NFC
C. Bluetooth
D. Z-Wave
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Question#32:
Which of the answers listed below refers to a short distance, line-of-sight
technology used for example in home remote controls?
A. NFC
B. 802.3
C. IR
D. Z-Wave
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Question#33:
Which of the following wireless technologies enables identification and tracking of
tags attached to objects?
A. WAF
B. RFID
C. GPS
D. WTLS
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Question#34:
Which type of technology enables contactless payment transactions?
A. NFC
B. SDN
C. PED
D. WAP
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End of Chapter (1)
For more training, Practicing and online Exams, log on to
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