11712974
Descripción
Test por hattan altiyare, actualizado hace más de 1 año
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Creado por hattan altiyare
hace casi 7 años
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Pregunta 1
Pregunta
check the right statements about OSI?
Respuesta
-
it stands for Open Systems Interconnection
-
it is a nice computer brand
-
has seven layers
-
started in 1983 by ITU and then in 1984 presented as layered model by ISO
-
it is a standard related to the H.W in computer network
Pregunta 2
Pregunta
in OSI model SAP is between layers in the same systems and protocol is between peer layers in different systems?
Respuesta
- True
- False
Pregunta 3
Pregunta
in the case of transmitting data which comes first packet or frame ?
Respuesta
-
packet
-
frame
Pregunta 4
Pregunta
in OSI model PDU = PCI + SDU ?
Respuesta
- True
- False
Pregunta 5
Pregunta
the lower four layers of OSI model called ~~oriented layers ?
Respuesta
-
transmission
-
tracking
-
telecommunication
-
transport
-
technical
Pregunta 6
Pregunta
the higher three layers of OSI model is called ~~oriented layers
Respuesta
-
programming
-
application
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processing
-
software
Pregunta 7
Pregunta
you can have time, frequency, space, code~~
Respuesta
-
adding
-
division multiplexing
-
process multiplexing
-
forward multiplexing
Pregunta 8
Pregunta
MAC address is temporary ?
Respuesta
- True
- False
Pregunta 9
Pregunta
the different between ISO model and Hybrid model is that the upper three layers treated as one layer in Hybrid model and called S.W layers
Respuesta
- True
- False
Pregunta 10
Pregunta
the number of layers in internet model is
Respuesta
-
four layers (app. transport, internet IP, subnetwork)
-
four layers (app. transmission , internet IP, subnetwork)
-
three layers (app. transport, internet IP)
-
five layers (app. transport, internet IP, data link, physical)
Pregunta 11
Pregunta
IP, TCP, UDP protocols are the basis of the internet
Respuesta
- True
- False
Pregunta 12
Pregunta
Bandwidth is the capacity to carry --
Respuesta
-
food
-
information
-
cars
-
heat
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people
Pregunta 13
Pregunta
bandwidth could be divided into --
Respuesta
-
sub bandwidth
-
channels
-
network
-
houses
Pregunta 14
Pregunta
which are the correct sentences ?
Respuesta
-
repeater and hub cover only layer one in osi model
-
bridges and switches cover layers one and two in OSI model
-
gateway could cover all layers in OSI model
-
router covers layer four only
-
router covers layers from 3 to 1
-
modem covers layers 5 and 6
Pregunta 15
Pregunta
Bit rate could be higher than Baud rate if No. of signal levels ( V ) is higher than 3
Respuesta
- True
- False
Pregunta 16
Pregunta
data encoding techniques for Analog signal of Digital single are --- shifting key
Respuesta
-
amplitude, time, space
-
amplitude, frequency, speed
-
amplitude, frequency, phase
-
time, distance, speed
Pregunta 17
Pregunta
data encoding techniques for Analog signal of Analog single are
Respuesta
-
AM, FM, PM
-
GM, FM, CM
-
VM, TM, AM
Pregunta 18
Pregunta
data encoding techniques for Digital signal of Digital single are:
Respuesta
-
manchester, Nonretuern-to-zero level , Nonretuern-to-zero, invert on ones
-
AM
-
time modulation
-
FM
-
Nonretuern-to-zero, invert on ones
Pregunta 19
Pregunta
data encoding techniques for Digital signal of Analog single are:
Respuesta
-
puls code modulation PCM
-
amplitude code modulation
-
frequency code modulation
Pregunta 20
Pregunta
propagation effect includes the following items
Respuesta
-
noise
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attenuation
-
filtering
-
modulation
-
distortion
-
interface
Pregunta 21
Pregunta
digital signal could be compressed but it can't be re-teansmitted
Respuesta
- True
- False
Pregunta 22
Pregunta
with IP address there is another term
Respuesta
-
subnet mask
-
tiger mask
-
internet mask
-
application mask
Pregunta 23
Pregunta
in multiplexing is used we look for either parallel access or
Respuesta
-
shifted access
-
avoid accidents between signals
-
Try to make accidents between signals impossible
-
time access
Pregunta 24
Pregunta
there are always two IP addresses reserved to network IP and Broadcast
Respuesta
- True
- False
Pregunta 25
Pregunta
as an analogy if the multiplexing tech, was the car, what is the operation mode?
Respuesta
-
gasoline
-
wheels
-
AT or MT
Pregunta 26
Pregunta
The four techniques of multiplexing have be used exclusively
Respuesta
- True
- False
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