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44 terms

computer test 5-7

STUDY
PLAY
communication link or channel
is a physical path or frequency for signal transmissions
WAN (wide area network)
internet is the most common type of WAN
WAN
consists of several smaller networks
WAN
is not a global network classification for public high speed network with range of about 50 miles
MAN (metropolitan area network)
this is a global classification for public high speed network with range of about 50 miles
MAN
covers large cities
LAN (local area network)
this is the one that most people have heard of, usually connect computers in a single building
Uta has a wifi called
LAN
NAN(neighborhood area network)
covers several buildings
PAN(personal area network)
is a interconnection between personal digital devices
packet
is a parcel of data that is sent across a computer network
True
Since computer network uses packet switching( know both) technology packets from many different messages can share a single communication channel or circuit
False
A computer can have a permanently assigned static IP address or a temporarily assigned dynamic IP address. If your computer is in the central library at UTA.
DHCP (dynamic Host Configuration Protocol)
is desinged to automatically assign IP addresses, this another way a IP address can be obtained
IP address
this is a series of numbers used to identify a network device
False
Internet is the most typical local area network architecture using a single common medium with multiple connections of computers
Which one is not the example of the technology of wireless encryption?
WEP(wired equivalent privacy)
Which network typology physical topology provides the highest robustness, it has lots of nodes
MESH
which one is an example of a MAC address
a. 2555.192.0.1 b. FX:AO:SE:01.AA.AA
c. 288.392.1.0 d. none of the above
d none of the above. a MAC address can not have a letter higher than F.
IP addresses range from
192.168.0.0~192.168.255.255
ARPANET
is for the military
The ARPANET created in 1969 connected to help scientist communicate and share valuable computer resources at UCLA,
false, it was created for the military
maximum number for an IP address is
256
( ) technology defined by IEEE 802.3, simultaneously broadcasts data packets to all network devices. This technology also relies on CSMA/CD protocol Carrier send Multiple access with collision detection that takes care of situations in which two networks will vary in speed. they have to wait a random amount of time so that they dont collide
Ethernet
is a set of rules for interacting and negotiating for efficiently transmitting data from ones network node to another
Protocol
the node is a connection point on a network
true
node can be
a. computer
b.router
c. motor
d. all of the abouve
d all of the above, a node can be any device that uses the network
network devices main purpose is to
make a the connection strong again, a boost
NIC( network interface card) is an example of
network device were the router makes the pass to send information to the computer, laptop so on
P2P cannot be the server and the client at the same time
false, it can be both at the same time
Napster is an example of what?
P2P mode
Star is the hardest physical topology
false, it is the easiest
the disadvantage of star is
trouble in the center part then the whole thing is messed up
Ring is shaped like a ring
true
disadvantage of ring
a. if one connection is disconnected then the whole thing is disconnected
b. the whole thing is connected even if one connection is disconnected
c. if the center has a problem then the whole thing has a problem
d none of the above
a. if one connection is disconnected then the whole thing is disconnected
If you use bus and there is a problem with bus then there is no network
true
tree topology
can use both star and bus topology, integrated model between star and bus
two similar websites can be connected by a device called a bridge
false, its two similar networks
bridge is a generic term for any device or software code used to join two networks
false, it is gateway
if bandwidth is ( ) it is broadband
high
if bandwidth is low it is ( )
narrow band
rules for transferring data from one network node to the other,
a divide messages into packages, a package is the smallest unit for data transmission
b. affix address to packets, addresses of sender and reciever
c. fjjlkgdjalfjda
d. a and b
e. a and c
d. a and b
a ( ) is a parcel of data that is sent across a computer network
packet
an IP address is a unique number assigned to a network interface card when it is manufactured
false, MAC address