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Understanding Network Principles
Chapter 10 Review
87
Computer Science
Not Applicable
06/21/2010

Additional Computer Science Flashcards

 


 

Cards

Term

 

 

 

 

A Network

Definition

 

 

 

 

Links 2 or more computers together to communicate and share resources.

Term

 

 

 

 

File Locking

Definition

 

 

 

The first software programs that ran on a LAN were not capable of permitting more than one user at a time to use a program (This constraint was known as what?)

Term

 

 

 

 

Servers, Clients or Workstations, and Resources

Definition

 

 

 

 

When looking at the devices or resources available on a network, there are 3 types of components to be aware of.  What are they?

Term

 

 

 

 

A network operating system (NOS) and some kind of shared medium.

Definition

 

 

 

 

Every network requires 2 or more items to tie the three comenents together. What are they?

Term

 

 

 

 

File Servers

Definition

 

 

 

 

 

Servers that provide files to the users on the network are called what?

Term

 

 

 

 

 

Print Servers

Definition

 

 

 

 

Servers that host printing services for users are called what?

Term

 

 

 

 

 

A file server and printer server

Definition

 

 

 

 

If a server is multi-purpose, they can be what at the same time?

Term

 

 

 

 

 

A file server OR A printer server

Definition

 

 

 

 

 

What type of server is a single-purpose server?

Term

 

 

 

 

 

Dedicated

Definition

 

 

 

 

A _____ server is assigned to provide specific applications or services for the network, and nothing else.

Term

 

 

 

 

 

Non-dedicated

Definition

 

 

 

 

_______ servers are assigned to provide one or more network services and local access.

Term

 

 

 

 

 

Workstations

Definition

 

 

 

 

 

Computers on which the network users do their work are called what?

Term

 

 

 

 

 

Client Computers

Definition

 

 

 

 

 

Workstations are also known as what?

Term

 

 

 

 

 

Network Interface Card (NIC)

Definition

 

 

 

 

 

A special expansion card that allows the PC to talk on a network.

Term

 

 

 

 

Site License

Definition

 

 

 

 

The arrangement allowing multiple users to use a single installation of an application.

Term

 

 

 

Network Operating System (NOS)

Definition

 

 

 

 

Networks use a _____ to control the communication with resources and the flow of data across the network.

Term

 

 

 

 

Peer-to-Peer

Definition

 

 

 

In a _____ network, the computers act as both service providers and service requestors.

Term

 

 

 

 

Workgroups

Definition

 

 

 

Peer-to-peer networks are also referred to as what?

Term

 

 

 

 

Server Based (client-server)

Definition

 

 

 

______ networks use one or more dedicated, centralized servers.

Term

 

 

 

 

Domains

Definition

 

 

 

 

 

Server-based networks are also known as what?

Term

 

 

 

 

Domain Controller

Definition

 

 

 

When you log into the network, the login request is passed to the server responsible for security, sometimes known as what?

Term

 

 

 

 

A Topology

Definition

 

 

 

 

A way of laying out a network.

Term

 

 

 

 

Physical Topologies

Definition

 

 

 

 

Describes how the cables are run.

Term

 

 

 

 

Logical Topologies

Definition

 

 

 

 

Describes how the network messages travel.

Term

 

 

Bus (can be both logical and physical)

Star (physical only)

Ring (can be both logical and physical)

Mesh (can be both logical and physical)

Hybrid (usually physical)

Definition

 

 

 

 

What are 5 primary topologies?

Term

 

 

 

 

Bus Topology

Definition

 

 

 

 

It consists of a single cable that runs to every workstation.

Term

 

 

 

 

Star Topology

Definition

 

 

 

 

Branches each network device off a central device called a hub, making it easy to add a new workstation.

Term

 

 

 

 

Ring Topology

Definition

 

 

 

Each computer connects to two others , joining them in a circle and creating a unidirectional path where messages move from workstation to workstation.

Term

 

 

 

 

Mesh Topology

Definition

 

 

 

 

Each device is connected to every other device.

Term

 

 

 

 

(x*(x-1)) / 2

Definition

 

 

 

 

Formula to determine number of cables needed in a mesh topology.

Term

 

 

 

 

 

Hybrid Topology

Definition

 

 

 

 

A simple mix of of the other topologies.

Term

 

 

 

 

Bandwidth

Definition

 

 

 

 

A network architecture's performance is usually discussed in terms of what?

Term

 

 

 

 

Baseband

Definition

 

 

 

 

Only one signal can be passed along a cable at one time.

Term

 

 

 

 

Broadband

Definition

 

 

 

 

Multiple signals can be transmitted on the medium at one time.

Term

 

 

 

Token Ring

Definition

 

 

 

Uses a physical star, logical ring topology.

Term

 

 

 

 

Protocol

Definition

 

 

 

 

To facilitate communication across a network, computers use a common language called _____

Term

 

 

 

Open Systems Interconnection (OSI)

Definition

 

 

 

 

The ISO introduced the __________ model to provide a common way of describing network protocols

Term

 

 

 

 

Application Layer

Definition

 

 

 

 

Allows access to network services. This is the layer at which file services and print services will operate.

Term

 

 

 

 

Presentation Layer

Definition

 

 

 

Determines the "look," or format, of the data. This layer performs protocol conversion and manages data compression, data translation, and encryption. The character set information is also determined at this level

Term

 

 

 

 

Session Layer

Definition

 

 

 

Allows applications on different computers to establish, maintain, and end a session. A session is one virtual conversation. This layer enables network procedures, such as identifying passwords, logons, and network monitoring.

Term

 

 

 

 

Transport Layer

Definition

 

 

 

 

Verifies that all packets were recieved by the destination host on a TCP/IP network. This layers most important job is to provide error checking and reliable, end-to-end communications.

Term

 

 

 

 

Network Layer

Definition

 

 

 

 

Responsible for logical addressing of messages. At this layer, the data is organized into chunks called packets.

Term

 

 

 

 

Data Link Layer

Definition

 

 

Arranges data into chunks called frames. This layer is very important because it makes transmission easier and more manageable and allows for error checking within the data frames. This layer also describes the unique physical address (also known as the MAC address) for each NIC.

Term

 

 

 

 

Physical Layer

Definition

 

 

 

 

Describes how the data gets transmitted over a physical medium. This layer defines how each long piece of data is and the translation of each into the electrical pulses that are sent over the wires.

Term

 

 

 

 

CSMA/CD

Definition

 

 

 

 

Carrier Sense Multiple Access with Collision Detection

Term

 

 

 

 

IEEE

Definition

 

 

 

 

Institute of Electrical and Electronics Engineers

Term

 

 

 

 

Ethernet

Definition

 

 

 

 

Based on the IEEE 802.3 CSMA/CD standard, what is the most well known example of a protocol?

Term

 

 

 

 

Token Passing

Definition

 

 

 

 

 

A special chunk of data called a token circulates through the ring from computer to computer. Any computer that has data to transmit must wait for the token.

Term

 

 

 

Transmission Control Protocol/Internet Protocol (TCP/IP)

Definition

 

 

 

 

The _______ suite is the most popular network protocol in use today, thanks mostly to the rise of the internet.

Term

 

 

 

 

HOST

Definition

 

 

 

 

Any device with an IP address is referred to as a what?

Term

 

 

 

 

Hypertext Transfer Protocol

Definition

 

 

 

 

HTTP

Term

 

 

 

 

File Transfer Protocol

Definition

 

 

 

 

 

FTP

Term

 

 

 

 

 

Simple Mail Transfer Protocol

Definition

 

 

 

 

 

SMTP

Term

 

 

 

 

Post Office Protocol

Definition

 

 

 

 

POP

Term

 

 

 

Transfer Control Protocol (TCP) and  User Datagram Protocol (UDP)

Definition

 

 

 

 

At the Host-to-Host layer of the DoD model there are only 2 protocols, _____ and _______ .

Term

 

 

 

 

Internet Control Message Protocol

Definition

 

 

 

 

ICMP

Term

 

 

 

 

 

Address Resolution Protocol

Definition

 

 

 

 

ARP

Term

 

 

 

 

Media Access Control

Definition

 

 

 

 

MAC

 

 

 

Term

 

 

 

 

 

Network ID and Host ID

Definition

 

 

 

 

 

Each IP address is made up of 2 components. What are they?

Term

 

 

 

 

 

Subnet Mask

Definition

 

 

 

 

Computers are able to differentiate where the network address ends and the host address begins through the use of what?

Term

 

 

 

 

Default Gateway

Definition

 

 

 

 

The IP address of the device that will take you outside your network.

Term

 

 

 

 

Class A

Definition

 

 

 

 

 

What class of IP address is used for large networks

Term

 

 

 

 

 

Class B

Definition

 

 

 

 

Class of IP address used for medium-sized networks

Term

 

 

 

 

 

Class C

Definition

 

 

 

 

Class of IP address for smaller networks with few hosts

Term

 

 

 

 

Class D

Definition

 

 

 

 

 

Class of IP address reserved for multicasts (sending messages to multiple systems)

Term

 

 

 

 

Class E

Definition

 

 

 

 

IP address class reserved for testing.

Term

 

 

 

 

Network basic input/output system

Definition

 

 

 

 

 

NetBIOS

Term

 

 

 

 

 

NetBIOS Extended User Interface

Definition

 

 

 

 

NetBEUI

Term

 

 

 

 

Internetwork Packet Exchange/Sequenced Packet Exchange

Definition

 

 

 

 

IPX/SPX

Term

 

 

 

 

IPX/SPX

Definition

 

 

 

 

A communication protocol similar to TCP/IP, but it's used primarily in LAN's

Term

 

 

 

 

Appletalk

Definition

 

 

 

 

Not just a protocol, its a proprietary network architecture for Macintosh computers

Term

 

 

 

 

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

Definition

 

 

 

 

Appletalk uses _____ technology to put data on the cable.

Term

 

 

 

 

TCP/IP

Definition

 

 

 

 

The default networking protocol on Macs

Term

 

 

 

 

Network Interface Card (NIC)

Definition

 

 

 

 

Provides the physical interface between computer and cabling.

Term

 

 

 

 

Coaxial Cable, Twisted Pair Cable, Fibre Optic Cable, and Wireless.

Definition

 

 

 

 

What are the 4 main types of cabling methods?

Term

 

 

 

 

Fiber-Optic Cabling

Definition

 

 

 

 

__________ is immune to electromagnetic or radio-frequency interference.

Term

 

 

 

802.3

Definition

 

 

 

Which IEEE 802 standard defines a bus topology using coaxial baseband cable and is able to transmit at 10 Mbps?

Term

 

 

 

Transport Layer

Definition

 

 

 

 

Which OSI layer signals "all clear" by making sure the data segments are error free?

Term

 

 

 

 

HTTP

Definition

 

 

 

 

Which TCP/IP protocol uses port 80?

Term

 

 

 

 

A type of password used to help secure a wireless connection

Definition

 

 

 

 

What is the primary function of the SSID?

Term

 

 

 

WPA2

Definition

 

 

 

 

What is the most secure wireless encryption standard for the 802.11x networks?

Term

 

 

 

 

Plenum

Definition

 

 

 

 

If you are going to run a network cable in the space above the drop ceiling in your office, which type of cable should you use?

Term

 

 

 

 

Bluetooth

Definition

 

 

 

 

Which wireless communication standard is often described in terms of a wireless personal area network?

Term

 

 

 

 

Global System for Mobile Communications (GSM), and Code Division Multiple Access(CDMA)

Definition

 

 

 

 

The 2 major cell standards in the US are?

Term

 

 

 

 

Infrared Network

Definition

 

 

 

 

A ______ is a point-to-point network between 2 devices.

Term

 

 

 

 

Secure and Fast Encryption Routine (Safer+)

Definition

 

 

 

 

For security, Bluetooth uses the __________ encryption routine, a 128-bit algorithm.

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