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computer network

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Quiz on computer network, created by hattan altiyare on 08/12/2017.
hattan altiyare
Quiz by hattan altiyare, updated more than 1 year ago
hattan altiyare
Created by hattan altiyare almost 7 years ago
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Resource summary

Question 1

Question
check the right statements about OSI?
Answer
  • 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

Question 2

Question
in OSI model SAP is between layers in the same systems and protocol is between peer layers in different systems?
Answer
  • True
  • False

Question 3

Question
in the case of transmitting data which comes first packet or frame ?
Answer
  • packet
  • frame

Question 4

Question
in OSI model PDU = PCI + SDU ?
Answer
  • True
  • False

Question 5

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

Question 6

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

Question 7

Question
you can have time, frequency, space, code~~
Answer
  • adding
  • division multiplexing
  • process multiplexing
  • forward multiplexing

Question 8

Question
MAC address is temporary ?
Answer
  • True
  • False

Question 9

Question
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
Answer
  • True
  • False

Question 10

Question
the number of layers in internet model is
Answer
  • 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)

Question 11

Question
IP, TCP, UDP protocols are the basis of the internet
Answer
  • True
  • False

Question 12

Question
Bandwidth is the capacity to carry --
Answer
  • food
  • information
  • cars
  • heat
  • people

Question 13

Question
bandwidth could be divided into --
Answer
  • sub bandwidth
  • channels
  • network
  • houses

Question 14

Question
which are the correct sentences ?
Answer
  • 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

Question 15

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

Question 16

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

Question 17

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

Question 18

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

Question 19

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

Question 20

Question
propagation effect includes the following items
Answer
  • noise
  • attenuation
  • filtering
  • modulation
  • distortion
  • interface

Question 21

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

Question 22

Question
with IP address there is another term
Answer
  • subnet mask
  • tiger mask
  • internet mask
  • application mask

Question 23

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

Question 24

Question
there are always two IP addresses reserved to network IP and Broadcast
Answer
  • True
  • False

Question 25

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

Question 26

Question
The four techniques of multiplexing have be used exclusively
Answer
  • True
  • False
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