Unit 1 - LO3 Understanding Business systems

Question 1

LAN

Answer 1

. Network for a group of computers within close proximity

Question 2

Ethernet

Answer 2

. Allows communication in both directions
. But only one direction at a time
. If two messages are simultaneously placed onto the network at one time they may crash into each other and bring the whole network down

Question 3

Token ring

Answer 3

. All computer are connected in a ring or star topology
. Only the host that holds the token can send data
. Once the recipient is confirmed the token is released

Question 4

WAN

Answer 4

. A network that spans large geographical areas
. They can be private or public
. It connects to a lot of smaller MANs or LANs

Question 5

ASDL (asymmetric digital subscriber line)

Answer 5

. Supports faster transmission of data over the copper wire telephone lines than the traditional voice modem

Question 6

ISDN ( integrated services digital network)

Answer 6

. A set of standards for digital transmission of data, video or voice over traditional telephone copper lines

Question 7

Leased line

Answer 7

. Rather than operating through national and international telephone wires, provides a fixed- bandwidth data connection
. Meaning bandwidth is only available to the leasee

Question 8

MAN

Answer 8

. Connects users over a larger geographical area than a LAN but smaller than a WAN

Question 9

Satellite

Answer 9

. Satellites in geostatic orbit are point- to- multipoint communication systems as they receive transmissions and rebroadcast them.