computer network

Beschreibung

Quiz am computer network, erstellt von hattan altiyare am 08/12/2017.
hattan altiyare
Quiz von hattan altiyare, aktualisiert more than 1 year ago
hattan altiyare
Erstellt von hattan altiyare vor mehr als 6 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
check the right statements about OSI?
Antworten
  • 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

Frage 2

Frage
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

Frage
in the case of transmitting data which comes first packet or frame ?
Antworten
  • packet
  • frame

Frage 4

Frage
in OSI model PDU = PCI + SDU ?
Antworten
  • True
  • False

Frage 5

Frage
the lower four layers of OSI model called ~~oriented layers ?
Antworten
  • transmission
  • tracking
  • telecommunication
  • transport
  • technical

Frage 6

Frage
the higher three layers of OSI model is called ~~oriented layers
Antworten
  • programming
  • application
  • processing
  • software

Frage 7

Frage
you can have time, frequency, space, code~~
Antworten
  • adding
  • division multiplexing
  • process multiplexing
  • forward multiplexing

Frage 8

Frage
MAC address is temporary ?
Antworten
  • True
  • False

Frage 9

Frage
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

Frage
the number of layers in internet model is
Antworten
  • 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)

Frage 11

Frage
IP, TCP, UDP protocols are the basis of the internet
Antworten
  • True
  • False

Frage 12

Frage
Bandwidth is the capacity to carry --
Antworten
  • food
  • information
  • cars
  • heat
  • people

Frage 13

Frage
bandwidth could be divided into --
Antworten
  • sub bandwidth
  • channels
  • network
  • houses

Frage 14

Frage
which are the correct sentences ?
Antworten
  • 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

Frage 15

Frage
Bit rate could be higher than Baud rate if No. of signal levels ( V ) is higher than 3
Antworten
  • True
  • False

Frage 16

Frage
data encoding techniques for Analog signal of Digital single are --- shifting key
Antworten
  • amplitude, time, space
  • amplitude, frequency, speed
  • amplitude, frequency, phase
  • time, distance, speed

Frage 17

Frage
data encoding techniques for Analog signal of Analog single are
Antworten
  • AM, FM, PM
  • GM, FM, CM
  • VM, TM, AM

Frage 18

Frage
data encoding techniques for Digital signal of Digital single are:
Antworten
  • manchester, Nonretuern-to-zero level , Nonretuern-to-zero, invert on ones
  • AM
  • time modulation
  • FM
  • Nonretuern-to-zero, invert on ones

Frage 19

Frage
data encoding techniques for Digital signal of Analog single are:
Antworten
  • puls code modulation PCM
  • amplitude code modulation
  • frequency code modulation

Frage 20

Frage
propagation effect includes the following items
Antworten
  • noise
  • attenuation
  • filtering
  • modulation
  • distortion
  • interface

Frage 21

Frage
digital signal could be compressed but it can't be re-teansmitted
Antworten
  • True
  • False

Frage 22

Frage
with IP address there is another term
Antworten
  • subnet mask
  • tiger mask
  • internet mask
  • application mask

Frage 23

Frage
in multiplexing is used we look for either parallel access or
Antworten
  • shifted access
  • avoid accidents between signals
  • Try to make accidents between signals impossible
  • time access

Frage 24

Frage
there are always two IP addresses reserved to network IP and Broadcast
Antworten
  • True
  • False

Frage 25

Frage
as an analogy if the multiplexing tech, was the car, what is the operation mode?
Antworten
  • gasoline
  • wheels
  • AT or MT

Frage 26

Frage
The four techniques of multiplexing have be used exclusively
Antworten
  • True
  • False
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