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Quiz von hattan altiyare, aktualisiert more than 1 year ago
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Erstellt von hattan altiyare
vor fast 7 Jahre
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Frage 1
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check the right statements about OSI?
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it stands for Open Systems Interconnection
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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
Frage 2
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in OSI model SAP is between layers in the same systems and protocol is between peer layers in different systems?
Antworten
- True
- False
Frage 3
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in the case of transmitting data which comes first packet or frame ?
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packet
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frame
Frage 4
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in OSI model PDU = PCI + SDU ?
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- True
- False
Frage 5
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the lower four layers of OSI model called ~~oriented layers ?
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transmission
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tracking
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telecommunication
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transport
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technical
Frage 6
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the higher three layers of OSI model is called ~~oriented layers
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programming
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application
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processing
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software
Frage 7
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you can have time, frequency, space, code~~
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adding
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division multiplexing
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process multiplexing
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forward multiplexing
Frage 8
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MAC address is temporary ?
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- True
- False
Frage 9
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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
Antworten
- True
- False
Frage 10
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the number of layers in internet model is
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four layers (app. transport, internet IP, subnetwork)
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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)
Frage 11
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IP, TCP, UDP protocols are the basis of the internet
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- True
- False
Frage 12
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Bandwidth is the capacity to carry --
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food
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information
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cars
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heat
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people
Frage 13
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bandwidth could be divided into --
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sub bandwidth
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channels
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network
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houses
Frage 14
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which are the correct sentences ?
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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
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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
Frage 15
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Bit rate could be higher than Baud rate if No. of signal levels ( V ) is higher than 3
Antworten
- True
- False
Frage 16
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data encoding techniques for Analog signal of Digital single are --- shifting key
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amplitude, time, space
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amplitude, frequency, speed
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amplitude, frequency, phase
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time, distance, speed
Frage 17
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data encoding techniques for Analog signal of Analog single are
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AM, FM, PM
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GM, FM, CM
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VM, TM, AM
Frage 18
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data encoding techniques for Digital signal of Digital single are:
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manchester, Nonretuern-to-zero level , Nonretuern-to-zero, invert on ones
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AM
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time modulation
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FM
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Nonretuern-to-zero, invert on ones
Frage 19
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data encoding techniques for Digital signal of Analog single are:
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puls code modulation PCM
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amplitude code modulation
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frequency code modulation
Frage 20
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propagation effect includes the following items
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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
Frage 21
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digital signal could be compressed but it can't be re-teansmitted
Antworten
- True
- False
Frage 22
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with IP address there is another term
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subnet mask
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tiger mask
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internet mask
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application mask
Frage 23
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in multiplexing is used we look for either parallel access or
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shifted access
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avoid accidents between signals
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Try to make accidents between signals impossible
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time access
Frage 24
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there are always two IP addresses reserved to network IP and Broadcast
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- True
- False
Frage 25
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as an analogy if the multiplexing tech, was the car, what is the operation mode?
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gasoline
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wheels
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AT or MT
Frage 26
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The four techniques of multiplexing have be used exclusively
Antworten
- True
- False
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