Outcome 5 – “Demonstrate an understanding of data communications and networked computer systems”


 


31
Textual data is stored in computers and transmitted over networks in binary code. The electrical pulses carry the binary code across computers. 


 


32
Graphical data is stored in computers and transmitted over networks in the form of binary code. In Bitmaps, each pixel represents a code. In Jpeg, the file codes are compressed by grouping the same colours together. 


 


33
Each second of sound is sampled 41,000 times... converted into binary code, and stored in a storage system. It is also transferred as binary code, through any networking cable. 


 


34


 Write the following word in binary code using the ASCII codes, together with an even parity at the start of each number.  COMPUTER (notes B)


 


35


 What is a protocol and what the protocol used over the Internet? (Notes A)


 


36


 What is a PDC and what is the more common name for it? (See section C, Notes C)


 


37
A hub links all computers to an MAU (a multiple access unit).


 


38
The common name for network like the one in the college is known as an Ethernet bus network.


 


39
The three things that make up a domain would be a network card, a server and workstations. 


 


40
The bandwidth of the college network connection is100mb/sec which is equivalent to a T1 connection.