Digital Signals
Acronyms
OSI Model
Frame Structures
Data Packing and Transmission
100
Signal is synchronized with a reference signal to ensure proper time.
What is Synchronous Transmission?
100
What does BCD Stand for?
Binary Coded Decimal
100
Persists of the Network Media
What is the Physical Layer
100
The Preamble
What is used to identify and synchronize the start of the frame?
100
A disadvantage of a Parity Check
If a even number of bits are currupted, the parity check wil not not be able to identify the error.
200
Signal is not synchronized with a reference signal
What is Asynchronous Transmission
200
What is the acronym of American Standard Code for Information Interchange?
ASCII
200
Encrypts data and formats data into a form that is agreed upon.
What is The Presentation Layer
200
Raw data that is divided into smaller units.
What is Segments?
200
a sufisticated check of data integrity.
What is Cyclic Redundancy Check?
300
Unipolar digital signals
What is a digital signal the fluctuates between 0 and +5volts
300
What does EBCDIC represent and who developed it?
Extended Binary Coded Decimal Interchange Code; developed by IMB
300
Ensures the flow of data from destination to source.
What is Transport Layer?
300
In what order is data segmented and encapsulated?
Segements, Packets, Frames
300
A Logical connection that matches a service with a computer.
What is a Port Address?
400
Bipolar digital signals
What is a digital signal that fluctuates between 0, -5, and +5volts
400
What does UDP stand for?
What is User Datagram Protocol
400
The Sub-Layers of the Data-Link layer
what is MAC and LLC?
400
What are the four types of ethernet frames?
Ethernet II IEEE 802.2 IEEE 802.3 Ethernet SNAP
400
What is the diffrence between Connection-Oriented and Connection-less data transmissions?
Connection-Oreiented establishes a session with the destination before sending data. Connection-less sends data without confirmation of a connection.
500
The conversion of data into a digital pattern
What is Digtal Encoding?
500
What does HTML represent and what is it used for?
Hyper Text Markup Language is used to creat documents that are viewable by web browsers.
500
In order, starting from bottom to top, what is the seven layers of the OSI Model?
Physical, data-Link, Network, Transport, Session, Presentation, Application?
500
The physical diffrence between IEEE 802.3 Frame structure and Ethernet II Frame structure.
What is the 8 bit SFD section after the preamble in IEEE 802.3 standard?
500
What is the diffrence between circuit switching and packet switching?
Circuit switching- A permanent connection between source and destination in which data is transmitted. Packet switching- Segments of data are sent over multiple connections and may arrive at diffrent times.
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