CS601 Assignment No. 2 Solution Semester Fall 2012

	Assignment No. 2 Semester Fall 2012 Data Communication - CS601		Total Marks: 25 Due Date: 28-11-2012
Q. 1. In data communication, you need to represent data streams (binary format) into different encoding schemes. You are required to represent the data stream 1101100111 into the following encoding schemes on different graphs separately: [5 marks for each] 1.     Return to Zero (RZ) 2.     Non Return to Zero Inverted (NRZ-I) 3.     Non Return to Zero Level (NRZ-L) 4.     Manchester 5.     Differential Manchester Note: You are given the following template to represent the given data stream. However, you can use your own.   Note: Assignment should not be copied from Internet, handouts or books. Make clear representation of each encoding scheme separately. Solution: 1)      RZ encoding of  1101100111            1         1        0          1         1           0         0          1            1       1   2)      Non Return to Zero Inverted (NRZ-I)   1        1         0        1         1         0          0         1         1           1   3)    Non Return to Zero Level (NRZ-L)   1           1         0          1        1         0          0           1           1          1   4)    Manchester   1          1         0        1          1          0           0         1          1          1   5)    Differential Manchester                        1         1         0        1         1          0          0           1          1          1

cs601-quiz 2-21-11-201

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 1 of 10 ( Start time: 09:06:11 PM )     Total Marks: 1
______________ is mostly Hardware
Select correct option:
    Presentation Layer
    Network Layer
    Physical layer
    Data Link Layer

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 2 of 10 ( Start time: 09:06:29 PM )     Total Marks: 1
Analog refers to something that is continuous in ________
Select correct option:
    Time
    Space
    Frequency
    None of the given
   
MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 3 of 10 ( Start time: 09:07:01 PM )     Total Marks: 1
What is the frequency of a sine wave if it completes one cycle in 2 seconds.
Select correct option:
    0.5
    0.6
    0.3
    0.2

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 4 of 10 ( Start time: 09:08:05 PM )     Total Marks: 1
In Mesh Topology if we have 6 nodes then, no of Links will be?
Select correct option:
    10
    12
    20
    15

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 5 of 10 ( Start time: 09:09:33 PM )     Total Marks: 1
Frequency domain plot shows relationship between ________
Select correct option:
    Frequency and time
    Frequency and amplitude
    Amplitude and time
    None of above

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 6 of 10 ( Start time: 09:10:51 PM )     Total Marks: 1
Data is transmitted using light through a ____ cable
Select correct option:
    twisted pair
    fiber-optic
    coaxial
    microwave

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 7 of 10 ( Start time: 09:12:03 PM )     Total Marks: 1
OSI Model is a Protocol
Select correct option:
    True
    False

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 8 of 10 ( Start time: 09:12:31 PM )     Total Marks: 1
The Internet is ...
Select correct option:
    software for sending e-mail around the world
    a government-owned agency that links computers
    a global network of computers networks
    a specialised form of local area network

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 9 of 10 ( Start time: 09:13:35 PM )     Total Marks: 1
What is meant by police server in first lecture?
Select correct option:
    Guide to traffic
    Observer and traffic executor
    Observer
    none of above

MC110403604 : Mariam Khalid



Quiz Start Time: 09:06 PM    
Time Left     89
sec(s)    
Question # 10 of 10 ( Start time: 09:14:37 PM )     Total Marks: 1
Are link, Path, circuit and routing the same thing?
Select correct option:
    Yes
    No

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     88
sec(s)    
Question # 2 of 10 ( Start time: 09:15:55 PM )     Total Marks: 1
Connectivity is a concept related to
Select correct option:
    transmitting information, either by computer or by phone
    the interconnections within a computer
    using computer networks to link people and resources
    being in an active session with your computer

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     90
sec(s)    
Question # 3 of 10 ( Start time: 09:16:17 PM )     Total Marks: 1
Which of the following connection methods would not be used to connect devices between two different offices?
Select correct option:
    twisted pairs
    fiber-optics
    coaxial cables
    infrared

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     89
sec(s)    
Question # 4 of 10 ( Start time: 09:17:42 PM )     Total Marks: 1
_________ layer header includes service point address or port address.
Select correct option:
    Physical
    Session
    Transport
    Network

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     89
sec(s)    
Question # 5 of 10 ( Start time: 09:18:29 PM )     Total Marks: 1
There are three types of Hubs that exist. Which of the following options correctly describes these three
Select correct option:
    Passive, dormant, special
    Active , dormant , passive
    Passive, Active, Turbo
    Passive, Active, Intelligent

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     89
sec(s)    
Question # 6 of 10 ( Start time: 09:18:51 PM )     Total Marks: 1
In _________ each path is passed from node to node
Select correct option:
    Circuit switching
    Packet switching

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     89
sec(s)    
Question # 7 of 10 ( Start time: 09:19:20 PM )     Total Marks: 1
One of the most dramatic changes in connectivity and communications in the past five years or so has been ____.
Select correct option:
    mobile or wireless telephones
    public and private discussion
    satellite uplinks
    running programs on remote computers

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     88
sec(s)    
Question # 8 of 10 ( Start time: 09:20:44 PM )     Total Marks: 1
The Transmission between Client/Server is called?
Select correct option:
    Asymmetric
    Symmetric

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     89
sec(s)    
Question # 9 of 10 ( Start time: 09:21:47 PM )     Total Marks: 1
Which of the following network topologies among the list below is incorrect?
Select correct option:
    Star
    Internet
    Ring
    Bus

MC100401301 : Muhammad Usman



Quiz Start Time: 09:15 PM    
Time Left     89
sec(s)    
Question # 10 of 10 ( Start time: 09:22:04 PM )     Total Marks: 1
Which level of the TCP/IP reference model routes data/information across a network channel?
Select correct option:
    Application layer
    Data Link Layer
    Transport Layer
    Network Layer