ISM 4220 EXAM 1 STUDY GUIDE
Computer Network - Answers - Interconnected group of computers & computing
equipment using either wires or radio waves that can share data and computing
resources
data communications - Answers - the transfer of digital or analog data using digital or
analog signals
Multiplexing - Answers - A form of transmission that allows multiple signals to travel
simultaneously over one medium.
Network Managment - Answers - The design, installation, & support of a network & its
hardware and software.
Servers - Answers - Computers that store network software and shared or private user
files
Switches - Answers - the collection points for the wires that interconnect the
workstations
Routers - Answers - the connecting devices between local area networks and wide area
networks such as the Internet
Nodes - Answers - Computing devices that allow workstations to connect to the network
& that make the decisions about where to route a piece of data
Subnetwork - Answers - Consists of the nodes and transmission lines collected into a
cohesive unit
Client-server system - Answers - A system in which some computers (the clients),
request services provided by other computers, the servers.
Protocols - Answers - Set of rules used by communication devices
Computer Terminal - Answers - Device that was essentially a keyboard and screen with
no long-term storage capabilities and little processing power
network architecture - Answers - The design of a computer network, which specifies
how devices communicate with one another. The most common network architecture
types are client/server and peer-to-peer.
, TCP/IP (Transmission Control Protocol/Internet Protocol) - Answers - Is a working
model currently used on the internet. It is a suite of communication protocols used to
interconnect network devices on the internet.
OSI (Open Systems Interconnection) model - Answers - Theoretical model. Is a
conceptual framework used to describe the functions of a networking system.
Five Layers of TCP/IP - Answers - Application, Transport, Network, Network Access,
Physical
Seven layers of the OSI model - Answers - Physical, Data Link, Network, Transport,
Session, Presentation, Application
Internet Protocol (IP) - Answers - The software that prepares a packet of data so that it
can move from one network to another on the Internet or within a set of networks in a
corporation.
Network Access Layer - Answers - responsible for placing and removing packets on the
physical network
Network Layer - Answers - Used to transfer data in & between networks
Application Layer - Answers - The application layer is used by end-user software such
as web browsers and email clients. It provides protocols that allow software to send and
receive information and present meaningful data to users.
Presentation Layer - Answers - The OSI layer that is responsible for
translating data into a network compatible
format.
logical connection - Answers - A non-physical connection between sender and receiver
that allows an exchange of commands and responses.
Physical Connection - Answers - The actual connection between sender and receiver at
the physical layer where the digital content of a message (actual 1's and 0's) is
transmitted.
Digitization - Answers - converting analog data to digital signals
Signals - Answers - the electric or electromagnetic impulses used to encode and
transmit data
Analog data - Answers - data that is represented in a physical way. For example,
physical movements of objects can be modeled in a spatial simulation, and real-time
audio and video can be captured using a range of systems and devices
Computer Network - Answers - Interconnected group of computers & computing
equipment using either wires or radio waves that can share data and computing
resources
data communications - Answers - the transfer of digital or analog data using digital or
analog signals
Multiplexing - Answers - A form of transmission that allows multiple signals to travel
simultaneously over one medium.
Network Managment - Answers - The design, installation, & support of a network & its
hardware and software.
Servers - Answers - Computers that store network software and shared or private user
files
Switches - Answers - the collection points for the wires that interconnect the
workstations
Routers - Answers - the connecting devices between local area networks and wide area
networks such as the Internet
Nodes - Answers - Computing devices that allow workstations to connect to the network
& that make the decisions about where to route a piece of data
Subnetwork - Answers - Consists of the nodes and transmission lines collected into a
cohesive unit
Client-server system - Answers - A system in which some computers (the clients),
request services provided by other computers, the servers.
Protocols - Answers - Set of rules used by communication devices
Computer Terminal - Answers - Device that was essentially a keyboard and screen with
no long-term storage capabilities and little processing power
network architecture - Answers - The design of a computer network, which specifies
how devices communicate with one another. The most common network architecture
types are client/server and peer-to-peer.
, TCP/IP (Transmission Control Protocol/Internet Protocol) - Answers - Is a working
model currently used on the internet. It is a suite of communication protocols used to
interconnect network devices on the internet.
OSI (Open Systems Interconnection) model - Answers - Theoretical model. Is a
conceptual framework used to describe the functions of a networking system.
Five Layers of TCP/IP - Answers - Application, Transport, Network, Network Access,
Physical
Seven layers of the OSI model - Answers - Physical, Data Link, Network, Transport,
Session, Presentation, Application
Internet Protocol (IP) - Answers - The software that prepares a packet of data so that it
can move from one network to another on the Internet or within a set of networks in a
corporation.
Network Access Layer - Answers - responsible for placing and removing packets on the
physical network
Network Layer - Answers - Used to transfer data in & between networks
Application Layer - Answers - The application layer is used by end-user software such
as web browsers and email clients. It provides protocols that allow software to send and
receive information and present meaningful data to users.
Presentation Layer - Answers - The OSI layer that is responsible for
translating data into a network compatible
format.
logical connection - Answers - A non-physical connection between sender and receiver
that allows an exchange of commands and responses.
Physical Connection - Answers - The actual connection between sender and receiver at
the physical layer where the digital content of a message (actual 1's and 0's) is
transmitted.
Digitization - Answers - converting analog data to digital signals
Signals - Answers - the electric or electromagnetic impulses used to encode and
transmit data
Analog data - Answers - data that is represented in a physical way. For example,
physical movements of objects can be modeled in a spatial simulation, and real-time
audio and video can be captured using a range of systems and devices
