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