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MTA Networking Fundamentals
An ever expanding set of flashcards for the MTA Networking Fundamentals Course
68
Computer Networking
Beginner
06/23/2019

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Cards

Term
When a key network admin leaves, what does the company depend on to keep using the network?
Definition
Network Documentation
Term
What is the most common central device used today?
Definition
Switch
Term
What is the most common adapter or connector used to connect a computer to a wired network?
Definition
RJ45
Term
What is the difference between a "Half Duplex" and a "full Duplex"?
Definition
A "Full Duplex" can send and receive data at the same time. While a "Half Duplex" can not.
Term
What would you use to set up an isolated group of computers within your organization?
Definition
VLAN
Term
What would you use to create a VLAN?
Definition
Switch
Term
What zone is used to publish external websites for an organization?
Definition
DMZ
Term
Which topology is the most redundant and the most expensive?
Definition
Mesh
Term
What Ethernet standard describes CSMA/CD
Definition
802.3
Term
What mechanism do wireless network use to access the network.
Definition
CSMA/CA
Term
What model promises the most processing power?
Definition
Distributive Computing
Term
Which model uses a central database for authentication?
Definition
Client/Server
Term
What type of server does Active Director run on?
Definition
Network Controller
Term
In which model does each host have their own security database?
Definition
Peer-to-Peer
Term
What type of communication is sent to a single designated host?
Definition
Unicast
Term
What is used to uniquely identify a host on a TCP/IP
Definition
IP address
Term
LAN(Local Area Network)
Definition
Two or more computers that exchange data, confined to a small geographic area.
Term
Why would a organization need a network?
Definition
Sharing, Communication, Organization, Money
Term
Wireless Access Point (WAP)
Definition
Acts as the central connection device for a wireless network.
Term
VLAN (Virtual LAN)
Definition
A group of host with a common set of requirements that communicate as if they were connected together in a normal fashion on one switch, regardless of their physical location.
Term
Perimeter Network
Definition
AKA DMZ, Small network set up separately from a company's private LAN and the internet.
Term
Back-to-Back Configuration
Definition
When a DMZ is situated between two firewall devices.
Term
3-leg perimeter configuration
Definition
The DMZ is usually attached to a separate connection of the company firewall. 1Con to LAN - 1Con to DMZ - 1Con to internet
Term
Network Topology
Definition
Defines the physical connection of hosts in a computer network.
Term
Star Topology
Definition
Most common topology, each computer is individually wired to a central connecting device with twisted-pair cabling.
Term
Mesh topology
Definition
Every computer connects to every other computer; No central connection device is needed.
Term
Ring topology
Definition
Each computer is connected to the network using a closed loop; done with coaxial cable. This is a pretty outdated concept
Term
Token Ring
Definition
Sends data logically in a ring fashion, but is physically connected in a star fashion.
Term
Ethernet
Definition
A group of networking technologies that define how information is sent and received between network adapters, hubs, switches, and other devices.
Term
Frame
Definition
A group of bytes packaged by a network adapter for transmission across the network, these frames are created on Layer 2 of the OSI model.
Term
Client-Server
Definition
an architecture that distributes applications between servers such as Windows Server 2008 and client computers such as Windows 7 or Windows Vista.
Term
File server
Definition
A server that stores files for computers to share
Term
Print Server
Definition
A server that controls printers that can be connected directly to the server or are connected to the network.
Term
Messaging Server
Definition
email servers, but also fax, instant messaging, collaborative, and other types of messaging servers.
Term
CTI-based server
Definition
where a company's telephone system meets its computer system, PBXs, and VOIP
Term
Peer-to-Peer (P2P)
Definition
Each computer has an equal ability to server data and to access data, just like any other computer on the network.
Term
OSI model
Definition
7 layers which house different protocols within one of several protocol suites, how data communicates on computer networks.
Term
When are Inbound Ports used?
Definition
When another computer whats to connect to a service or application running on your computer.
Term
When are Outbound Ports used?
Definition
When your computer wants to connect to a service or application running on another computer.
Term
Where is the port # shown?
Definition
After the IP address separated by a colon :
Term
What are the 7 layers of the OSI model?
Definition
Application, Presentation, Session, Transport, Network, Datalink, Physical
Term
what is the 1st layer of the OSI model and it's unit of measurement?
Definition
Physical: bits
Term
What is the 2nd layer of the OSI model and it's unit of measurement?
Definition
DataLink: Frames
Term
What is the 3rd layer of the OSI model and it's unit of measurement?
Definition
Network: Packets
Term
What is the 4th layer of the OSI model and it's unit of measurement?
Definition
Transporte: Segments
Term
What is the 5th layer of the OSI model?
Definition
Session
Term
What is the 6th layer of the OSI model?
Definition
Presentation
Term
What is the 7th layer of the OSI model?
Definition
Application
Term
What layers are within the Communication Subnet?
Definition
Physical, Datalink, Network
Term
Describe the Physical Layer of the OSI model.
Definition
1st layer of the OSI model. Defines network standards for electrical signals, connectors, media types, and the way data is placed on the network media.
Term
Give examples of the physical layer.
Definition
Signals, Hubs, Cables, Connectors, Physical topologies(Bus, Ring, Star, Mesh)
Term
________ is an enormous system of interlinked hypertext documents that are accessed with a web browser. _______ is the current stage.
Definition
World Wide Web (WWW)

Web 2.0
Term
________ is a private computer network that an organization implements to share data with employees.
Definition
Intranet
Term
________ is a private computer network that extends to users outside a company in order to share data.
Definition
Extranet
Term
________ a connection between two or more computers or devices that are not on the same private network. In effect creating a tunnel through LANs and WANs connecting the 2 devices together.
Definition
VPN (Virtual Private Network)
Term
__________ define the physical connections of hosts in a computer network.
Definition
Network Topologies
Term
_________ topology describes how the data is actually sent from one computer to the next.
Definition
Logical Topology
Term
What is the most common adapter or connector used to connect a computer to a wired network.
Definition
RJ45
Term
What layer does the Router reside on?
Definition
Network: Layer 3
Term
Which layer deals with the serial transfer of data?
Definition
Physical: Layer 1
Term
You run a netstat -an command in the command prompt and notice many connections being made that say TCP in the left-most column. What layer of the OSI is TCP referring to?
Definition
Transporte: Layer 4
Term
You suspect a problem with your computer's network adapter and its ability to send the correct frames of data that correspond with the network architecture used by the rest of your computers. What layer should you attempt to use as a troubleshooting
Definition
DataLink: Layer 2
Term
A standard such as 100BASE-T refers to which OSI layer?
Definition
Physical: Layer 1
Term
Almost all of your users connect to Web sites with Internet Explorer. They usually type domain names such as www.microsoft.com. What protocol is initiated by default when they press Enter after typing the domain name?
Definition
HTTP: Hypertext transfer protocol
Term
You need to find out the MAC address of your director's computer. He has given you
permission to access his computer. You access the command prompt. What command
should you type to see the computer's MAC address?
Definition
ipconfig/all
Term
You need to find out the MAC addresses of all the computers that a particular user's
computer has connected to in the recent past. What command should you use to accomplish this?
Definition
arp -a
Term
You have been instructed to capture and analyze packets on a server. What tools will allow you to do this?
Definition
Protocol Analyzer or Wireshark
Term
The manager of IT asks you ping his laptop to see whether your computer can find it on the network. In this scenario, the ____________ protocol is being implemented
Definition
ICMP
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