How are networks formed?
system formed by links
What are websites that allow individuals to
link to each other's pages called?
What are connections with your friends
What two things do computers share when
linked by a network?
Data & resources
What is the smallest "network" you can
What is a collection of hosts connected by
Host connected by Network Devices
What is any device that sends and receives
information on the network called?
What are devices that are connected to
~Network printer ~mobile handhelds
When a printer is connected directly to a
switch, is it a host or peripheral?
(End & Intermediary devices)
Network devices link together using a
variety of connections. What type of cabling
uses electrical signals?
What type of cable uses light pulses to
What type of connection uses laser
What are two benefits of networking _
When sharing a networked printer, where
are the print jobs sent?
What type of tool is email considered?
What device manages network resources?
What is a group of interconnected devices
that is under the same administrative control
Who controls the security and access
control policies that are in force on the
What are networks that connect LANs in
geographically separated locations?
What is the most common example of a
Who interconnects LANS?
Telecommunication services Providers
What is used to transmit and receive data
over wireless devices?
On a wireless network, what is connected to
the network with copper cable?
In a peer-to-peer network, how are devices
connected to each other?
Devices connected to each other w/o any additional networking devices between them
What is the maximum number of computers
that should be in a peer-to-peer network?
10 or less
Is there a centralized security?
What device answers a clients request for
information in a client/server network?
Where is all network data stored?
What two things must each user provide to
gain access to network resources?
Authorized UserName & Password
What is the amount of data that can be
transmitted within a fixed time period?
What are the small chunks of data called
that are sent over a network?
How is bandwidth measured?
bits per second
How do you write megabits per second?
How many bits are in one byte?
What is unidirectional or one-way
EX: TV station to TV @ home
When data flows in one direction at a time,
what is it called?
EX:Police, CB radio, Emergency communication
What is data flowing in both directions at the
Full-Duplex ((100 Mbps))
EX: Telephone conversation
Although the data flows in both directions,
how is the bandwidth measured?
one direction ((100 Mbps-network cable))
What type of communication is a telephone
What type of communication does a police
two-way radio use?
What type of communications is DSL?
What is the number that is used to identify a
device on the network called?
Must each device on a network have a
unique IP address to communicate with
other network devices?
Each device on a LAN has to have an IP
address. In order to communicate, these IP
addresses must be in the same
What on the host is assigned a physical
MAC (Media Access Control) address?
NIC ((Network Interface Card))
How often does the physical address of a
the same as long as on the same Network
What is another name for a "logical
How many bits are in an IP address?
32 binary bits
What does the first part of an IP address
What does the second part of an IP address
Host on that Network
What is the only part of the IP address do
routers need to know?
How to reach each Network
What class of IP address is used by
What class is used for experimental testing?
What class of IP is given to customers by
What portion of the IP address does the
subnet mask identify?
Network portion of IP address
The Class A subnet mask is 255.0.0.0.
What does the 255 indicate?
First octet of IP adress
What is the default subnet mask of a Class
First 3rd octet of IP address
What settings in Windows, will you find
What device enables a computer to connect
to the network?
What does it mean that a MAC address is
MAC is permanently programed into NIC
What is used by the MAC to deliver data on
What software utility dynamically assigns IP
addresses to NW devices?
Dynamic Host Configuration Protocol
What are the four types of information that a
DHCP server can assign to hosts?
~Optional Values (DNS) Domain Name System
If a DHCP server offers an IP address and
the host accepts, what is it called when the
server assigns an IP address for a specific
period of time?
How can a computer be configured to
accept an IP address from a DHCP server?
Obtain an IP Address Automatically
Your computer has been assigned an
address of 169.254.2.1. Which service
dynamically assigned this address to the
Automatic Private IP Addressing
What is a protocol?
Set of Rules
What are the five main functions of
Compressing the data
Deciding how data is to be
Deciding how to_ANNOUNCE__
sent and received data
What protocol is small, nonroutable, and
designed for a work group network that
requires no connection to the Internet
NetBIOS Extended User Interface
What protocol used to download email
messages from an email server?
Simple Mail Transfer Protocol
What protocol announces errors and
congestion on a network?
Internet Control Message Protocol
What CLI (command line utility) utility tests connection between
Ping =>sends a ICMP echo
How many pings are sent to a destination
when testing connectivity?
If you ping www.cisco,com, what will the
server display in the answer?
What does a router do with a packet if it
doesn't know where to send it?
What devices extend the range of a network
by receiving data on one port, and then
regenerating the data and sending it out to
all other ports?
Hub aka.=> Concentrators
What are sections of a network called?
What device maintains a table of MAC
addresses for computers attached to each
What device connects entire networks to
What address do routers read?
What does a Wireless AP use to
What type of cable uses Glass/Plastic to transmit
What is noise generated by adjacent pairs of
What is needed so that your network
communication isn't slow due to interference
caused by the magnetic field?
What is the most commonly used cabling in
Unsheilding Twisted Pair
What is the range of Unshielded Twister
What in the cable limits signal degradation?
What category has four pairs of wires and a
transmission rate of 100 Mbps?
Shielded twisted pair
What cable is used in most network
What type of coax cable is used for tv
installations in the US?
Why can fiber-optic cable deliver signals
that are clearer, can go farther, and have
greater bandwidth than cable made of
copper or other metals?
Not effected by EMI and RFI
What defines the way in which computers,
printers, and other devices are connected to
What determines how the hosts
communicate across a medium, such as a
cable or the airwaves?
What topology is a star network with an
additional networking device connected to the main networking device?
Extended Star topology
What topology connects all devices to each
other and is used in WANs that interconnect LANS?
What topology is is first come, first served
for transmitting data on the network?
What is the Ethernet IEEE standard?
Institute of Electrical and Electronic Engineers
What access control method must be used
on this network?
How do hosts access the network using the
First come, first served broadcast topology
As networks get bigger, what physical
topology does an Ethernet network use?
What is the speed of Gigabit Ethernet?
What is often used to connect several
buildings in an office complex or on a
Fiber Distributed Data Interface
Which standards organization has more
than 860 active standards?
HINT: Best Known For Developing Standards
What is the Ethernet standard?
What network access control method must
Ethernet networks implement?
Carrier Sense Multiple Access w/Collision Detection
What must a host do before it sends data?
Listen to Network for clearance
How do hosts waiting to transmit data react
to a collision on a CSMA/CD network?
sends out a jam signal that tells all stations to stop transmitting & to run a back-off algorithm
Who has permission to transmit first, after a
First station that detects the collision, or the Doubling of voltage
Ethernet collisions can reduce transmissions
by what percentage?
What technology uses a star topology?
What is another name for 100BASE-TX?
What is the maximum range a data signal
can travel through a 1000BASE-T network
What type of Ethernet implementation
should you use for live video?
What is the IEEE standard that specifies
connectivity for wireless networks?
Which wireless IEEE standard operates in a
radio frequency of 2.4 GHz and supports a
maximum bandwidth of 54 Mbps?
Which model was created by the DoD?
What protocol is the standard for
transporting data across networks?
What model standardized the way devices
communicate on a network?
What layer provides web browser services?
What layer describes how hosts access the
What layers of the OSI model are
implemented in hardware?
Which layer of the OSI model is primarily
concerned with accessing the physical
media and physical addressing?
Which term describes the process of adding
headers to data as it moves through the
layers of the OSI model?
What is the term to describe data as it is
broken down and sent down the layers of
the OSI model?
What does a segment become at Layer 3? (Network)
What device is required to connect to the
What should you disable when installing a
What is a best practice to follow when
installing a driver?
Close all application when installing
Why should you reboot after installing a
What will indicate a network connection after
you plug in the cable?
LED / Link Light
What must all NICs be configured with in
order to participate on the network? (3)
What is an electronic device that transfers
data between one computer and another
using analog signals over a telephone line?
Dialup Network (DUN)
What's the acronym for the "plain old
What is the maximum bandwidth when
using an analog telephone connection?
When using ISDN, what technology carries
What technology shares the telephone wires
with analog signals?
Which technology is not good for hosting a
8.10.2 Define power line
ADSL (Asymmetric Digital Subscriber Line)
Which has faster bandwidth - analog
modems or PLC?
Power Line Communitcation
What type of signals can PLC carry?
Voice & Data Signals
What makes PLC easy for home network
Plug to outlet
Which WAN technology uses a wide range
of frequencies or channels through which to
What four technologies are considered
What are the satellite download speeds?
What is a disadvantage of using VoIP?
Counting on Internet
What is the biggest problem with network
devices, especially in the server room?
What should you do to your cable to save
you time later?
After gathering information from the
customer, what should a technician do?
What are the three areas where network
problems are likely to occur?
~Network cable unplugged
~Firewall blocking port 23
~Remote device not configed
What does NIC do?
Reads MAC(media access control) address