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CS601 Update Finalterm Solved Past Papers

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CS601 Update Finalterm Solved Past Papers

CS601 Update Finalterm Solved Past Papers

Cs601-Data Communication

CS601 Update Finalterm Solved Past Papers

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CS601 Update Finalterm Solved Past Papers
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From: UPDATED BOOK
Cs601 Data Communication

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Question No: 1
Ethernet Address is of bytes
 4
 6
 8
 12
Question No: 2
In Pure ALOHA, the vulnerable time is the frame transmission time.
 Same as
 Two times
 Three times
 Four times


Question No: 3
_ _ was used as a medium in 10 Base-T
 Thick coaxial Cable
 Think coaxial Cable
 Twisted Pair Cable
 Two Mode For Cable

Question No: 4
When data are transmitted from device A to device B, the header from A’s layer 4 is read by B’s
layer.
 physical
 transport
 application
 none of the given

CS601 Update Finalterm Solved Past Papers

Question No: 5
In encoding, we use three levels: positive, zero, and negative.
 polar
 nonpolar
 mmultilevel
 bipolar

Question No: 6
A periodic signal completes one cycle in 0.001 s. What is the frequency?
 1 Hz
 100 Hz
 1 KHz
 1 MHz

Question No: 7
There are basic modes for the propagation of light in fiber-optic cables.
 3
 4
 5
 2

Question No: 8
A parabolic dish antenna is a(n) antenna.
 Omnidirectional
 Bidirectional
 Horn
 Unidirectional


Question No: 9
Zero crossing bandwidth is also called as equivalent noise bandwidth.

 True

 False


Question No: 10
During the transmission, transmitting device produces a high frequency signal which acts as a basis for the transmission. This base signal is called .
 Analog signal
Digital signal Not Confirm
 Modulated signal
 Carrier signal


Question No 11:
There are _ types of serial transmission:
 1
 2
 3
 4


Question No 12:
Synchronous transmission have .
 a start bit
 a stop bit
 gaps between bytes
 none of the given


Question No 13
Using encoding scheme in digital transmission, we represent 0 by zero voltage level and represent 1 by any positive voltage level.
 Polar
 AMI
 Bipolar
 Unipolar


Question No 14

 Log L
 Log2
 Log2*2
 Log2 L


Question No 15
Which of the following is an example of ITU-T modem standards:?
T-series
 X-series
 N-series
 V-series


Question No 16
The maximum data rate in the uploading direction is still .
 26.6 Kbps
 33.6 Kbps
 36.6 Kbps
 46.6 Kbps


Question No 16
In each station is forced to send a frame only at beginning of time slot

 Pure ALOHA
 Slotted ALOHA
 Fragmented ALOHA
 None of the given


Question 17
In each station sends a frame whenever it has a frame to send
 Pure ALOHA
 Slotted ALOHA
 Fragmented ALOHA
 None of the given


Question No 18
The data rate of a T-1 line is .
 1.544 Gbps
 2.544 Mbps
 1.544 Kbps
 1.544 Mbps


Question 19
Circuit switched networks have efficiency but delay compared to the packet switched networks.

 high, minimal

 high, high
 low, minimal


Question No 20
Category 5 UTP cable is used for data transmission of upto .
 100 Mbps
 200 Mbps
 250 Mbps
 400 Mbps
Question No 21
All of popular Fiber optic connectors are _ shaped.
 Conical
 Barrel
 Circular
 Rectangular


Question No 22
SONET stands for
 synchronous optical network
 synchronous operational network
 stream optical network
 shell operational network Question No 23
Fast Ethernet has a data rate of Mbps.
 10
 100
 1000
 10,000


Question No 24
The VLF and LF bands use propagation for communications.
 Ground
 Sky
 Line of sight
 Space Question No 25
In Bit-oriented framing, bit pattern is used as a flag to define beginning and end of a frame.
 (11111111)2
 (10000001)2
 Single
 (01111110)2


Question No 26
Traditionally, protocols have been defined for the data-link layer to deal with flow
and error control.
o Two
o Three

o Five
o Four
Question No 27
Multiplexing is the set of techniques that allows simultaneous TX of multiple signals across
data link
 Single
 Multi
 Single and Multi


 none of the given Question N0 28
Need for Addressing makes Asynchronous TDM inefficient for bit or byte .

 Interleaving
 Addition
 Substraction
 None of the given Question No 29
takes data from one high speed line and breaks it into portions.

► Multiplexing
► Inverse multiplexing
► Inverse subtraction
► Inverse addition

Question No 30
For Carrier Sense Multiple Access/Collision Detection (CSMA/CD) we need a restriction on the

 Collision Size
 Signal Size
 Frame Size
 Station Size Question No 31:
In Y-MODEM Multiple files can be sent simultaneously

► True
► False

Question No 32
At the data-link layer, protocol is designed to handle both flow and error control,
but communication is one frame at a time.

 Simple
 Go-Back-N
 Selective-Repeat
 Stop-and-Wait
Question No 33

The PPP protocol uses , which is responsible for establishing, maintaining, configuring, and terminating links.
 Internet Protocol Control Protocol (IPCP)
 Challenge Handshake Authentication Protocol (CHAP)
 Network Control Protocols (NCPs)
 Link Control Protocol (LCP)

Question No 34
Aloha, CSMA/CD and CSMA/CA are part of .
Controlled Access protocol

Channelization protocol

Mutual access protocol

Random Access protocol


Question No 35
Which of the following is an example of ITU-T modem standards:
 T-series
 X-series
 N-series
 V-series
Question No 36
The maximum data rate in the uploading direction is still .
 26.6 Kbps
 33.6 Kbps
 36.6 Kbps
 46.6 Kbps


Question No 37
Category 5 UTP cable is used for data transmission of upto .
 100 Mbps
 200 Mbps
 250 Mbps
 400 Mbps

Question No 38
ALOHA the earliest random access method was developed in early .

1950s
1960s
1980s
1970s

Question No 39
In block coding, we divide our message into blocks, each of bits; and add redundant
bits to each block to make the codewords of bit length.

m, r, c
n, k, r
n, r, k
k, r, n
Question No 40
All of popular Fiber optic connectors are _ shaped.
 Conical
 Barrel
 Circular
 Rectangular

Question No 41

MAC stand for
 Media Access Controller
 Main Access Control
 Mandatory Access Control
 Media Access Control

Question No 42
Which one of the following is a Random-Access protocol
 CDMA/CA
 ALOHA
 CDMA/CD
 TDMA


Question No 43
The VLF and LF bands use propagation for communications.
 Ground
 Sky
 Line of sight
 Space

Question No 44
Multiplexing is the set of techniques that allows simultaneous TX of multiple signals across data link
 Single
 Multi
 Single and Multi
 none of the given

Question No 45
Need for Addressing makes Asynchronous TDM inefficient for bit or byte .
 Interleaving
 Addition
 Subtraction
 None of the given

Question No 46
CDMA stands for _
 Carrier Data Multiple Access
Code Division Multiple Access
 Code Data Multiple Access
 Carrier Division Multiple Access

Question No 47

In Ethernet, the source address field in the MAC frame is the _ _ address.
 Sender’s logical
Previous station’s physical
 Next destination’s physical
 Sender’s service port

Question No 48
takes data from one high speed line and breaks it into portions.
 Multiplexing
 Inverse multiplexing
 Inverse subtraction
 Inverse addition
Question No 49
A traditional telephone line has a bandwidth of _ .
► 2000Hz
► 4000 Hz
► 2000 MHz
► 4000 MHz


Question No 50
To detect five errors, the Hamming distance between each pair of codewords should be at least_ .
 4
 5
11
 6
Question No 51
For FEC using XOR operation, we divide a packet into N chunks, and need to send
chunks to the receiver side.
o N
o 2N
o (N+1)/2
o N+1
Question No 52
If the ASCII character H is sent and the character I is received, what type of error is this?
 Single-bit
 Multiple-bit
 Burst
 Recoverable


Question No 53
At the CRC generator, _ added to the data unit after the division process
 0s are
 1s are
 The polynomial
 The CRC remainder is

Question No 54
Error control in the data link layer is based on

 automatic repeat request

 automatic repeat acknowledgment
 automatic send acknowledgment

Question No 55
In a technique called, compounding High-and-Low Resolution Packets, the low- resolution section in the first packet is .
► Parity code

CRC
► Empty Question No 56
In line discipline the initiator first transmits a frame called an
 Enquiry
 Acknowledgment
 NAK
 Reques

Question No 57
Primary device uses to receive transmission from the secondary devices.

ACK

 ENQ
 POLL
Question N0 58
Token Bus has no commercial application in data communications
 True
 False


Question No 59
HDLC is an acronym for .
 High-duplex line communication
High-level data link control
 Half-duplex digital link combination
 Host double-level circuit
Question No 59
The BNC-T connector is a T-shaped device with ports
 Three
 Two
 Four
 Five


Question No 60
Each station in the Token Ring regenerates the frame.
 True
 False

Question No 61
Repeater works on
 Data Link
 Physical
 Network
 Application
Question No 62

layer.

Trunks are transmission media such as that handle the telephone to the nearest end
office.
 Satellite links
 Twisted-pair & Fiber-optic
 Twisted-pair
 Fiber-optic
Question No 63
At the data-link layer, protocol is designed to handle both flow and error control,
but communication is one frame at a time.

o Simple
o Go-Back-N
o Selective-Repeat
o S top-and-Wait


Question No 64
The PPP protocol uses , which is responsible for establishing, maintaining, configuring, and terminating links.
 Internet Protocol Control Protocol (IPCP)
 Challenge Handshake Authentication Protocol (CHAP)
 Network Control Protocols (NCPs)
 Link Control Protocol (LCP)
Question No 65
The original Ethernet technology with the data rate of 10 Mbps is called ?
 Standard Ethernet
Fast Ethernet
 Gigabit Ethernet
 10 Gigabit Ethernet

Question No 66
Normally the value of Kmax in pure ALOHA is .
 10
 15
 25
 30
Question No 67
Which one of the following is not a Channelization Protocol?
 CSMA
 CDMA

 FDMA
 TDMA
Question No 68
In CSMA/CA is the amount of time divided into slots.
 Contention Window
 Interframe Window
 Fragmented Window
 Collided Window

Question No 69
Aloha, CSMA/CD and CSMA/CA are part of .
Controlled Access protocol Channelization protocol Mutual access protocol Random Access protocol
Question No 70
ALOHA the earliest random access method was developed in early .
• 1950s
• 1960s
• 1980s
1970s

Question No 71
For FEC using XOR operation, we divide a packet into N chunks, and need to send
chunks to the receiver side.
N
2N

(N+1)/2

N+1


Question No 71
The layer is responsible for the creation and delivery of a frame to another node, along the link.
 Application
 Network
 Physical
 Data-link

 A unicast Question No 74
The ARP protocol is one of the auxiliary protocols defined in the layer, which maps an IP address to a logical-link address.
Physical

Data-link

Transport

Network
Question No 75
Following are the examples of connecting devices EXCEPT .
 Link Layer Switches
 Hub
 Routers
 Wire

Question No 76
eliminates collision and connect heterogeneous devices.
o Hub
o Repeater
o Bridge
o Switch

Question No 77
creates looping problem in learning switch.
 Unicast
 Multicast
 None of the Given
 Broadcast
Question No 78
The term FTTC stands for .

Question No 72
IP addresses are the identifiers at the layer.
 Physical
 Data-link
 Transport
 Network

Question No 73
Each host or each interface of a router is assigned address.
 A multicast
 A broadcast
 Both multicast or broadcast

A unicast

Front Technology Terminal Connection Free Technology Transmission Connection
Fiber Terminal Transmission Commission Fiber to the Curb
Question No 79
Multiple-access Protocol is divided into .
Two categories

Four categories

Five categories

Three categories

Question No 80
The original Ethernet technology with the data rate of 10 Mbps is called Ethernet.

Fast Gigabit
10 Gigabit Standard
Question No 81
CSMA/CD is not used in Ethernet.
Standard

Fast

Gigabit
10 Gigabit
Question No 82
The amplitude of a digital signal depends upon the to represent a bit.
Phase

Wavelength

Bandwidth

Voltage
Question No 83
In IEEE 802.11, a station with mobility can move from one BSS to another, but the movement is confined inside one ESS.
None of the choices are correct No-transition
ESS-transition
BSS-transition

Question No 84
In IEEE 802.11, communication between two stations in two different BSSs usually occurs via two .
BSSs

ESSs
None of the given

Aps
Question No 89
A property of a signal where it is being received by receiver after reflection from different intermediate objects (Building, iron polls, walls) is called
o Attenuation
o Interference
o Error
o Multipath Propagation Question No 90
medium is used in wireless LANs for transportation of data.
Copper pair cable

Optical fiber cable Coaxial cable
Air
Question No 91
In context of control signaling network, what does STP stand for
o Shielded twisted pair
o Signaling transmission point
o Signal transportation procedure
o Signal transfer point

Question No 92
POP stands for
o Presentation of points
o Points of points
o Points of packets
o Points of Presence
Question No 93
What does LATA stand for
 Local Area Transmission Arena
 Local-Access Transit Access
 Local-Areas Transport Areas
Local-Access Transport Areas
Question No 94
Unipolar encoding scheme is not supported over the medium having .
 The capability of handling DC component
 Low speed
 High speed
 No capability of handling DC component
Question No 95
The amplitude of a digital signal depends upon the to represent a bit.
► Phase
► Wavelength
► Bandwidth
► Voltage

Question No 96
Transmission Control Protocol is a(n) layer protocol
 Application
 Network
 Session
 Transport

Question No 97
In each station is allotted a time slot during which it can send data
 NDMA
 CDMA
 TDMA
 FDMA
Question No 98
In collisions are avoided by deferring transmission even if the channel is idle
 The Slotted Frame
 The Deployment Frame
 The Contention Window
 The Interframe Space

Question No 99
In the context of Ethernet Implementations, maximum medium length of 10 Base-F was
_ meters.
 500
 1000
 2000
 150
Question No 100
Collisions in CSMA/CA are avoided through
 The Interframe Space
 The Contention Window
 Acknowledgments
 All of the given

  1. The extra bits added with the original data for error detection/correction are called
    ► Process IDs
    ► Redundant bits
    ► Fault bits
    ► Port Number
  2. are used to exchange session management and control between connected devices.
    ► U-frames
    ► N-frames
    ► S-frames
    ► I-frames
  3. The message 1110 sent by source is received by a destination as 1011.This is types of err.
    ► Hamming
    ► Single-Bit
    ► Uni-Bit
    ► Brust
  4. In Block code we divide our message into blocks of K bits called as
    ► Password
    ► Code word

Data words
► Cross words

  1. DLC in Data Link Layer stand for
    ► Demand Link coordination
    ► Data Line Code
    ► Data Link Control
    ► Divide Line Communication
  2. is responsible for governing node to node Communication.
    ► Data Link Layer
    ► Session Layer
    ► Presentation Layer
    ► Application Layer
  3. Go-Back-N protocol is one of the Layer protocol, which is used to control the flow of data during the transmission
    ► Presentation
    ► Network
    ► Data Link
    ► Physical
  4. Error correction in more than the erro detection.
    ► Useless
    ► Informal
    ► Difficult
    ► Easy
  5. Stop-and-Wait protocol is used for_
    ► Flow control Only
    ► Neither flow nor error control
    ► Both flow and error control
  6. is not a function of Data Link control
    ► Framing
    ► Error Control
    ► Flow Control
    ► Modulation
  7. Payload filed of the PPP frame is of variables Size and it can carry maximum Data up to
    ► 10 Bytes
    ► 500 Bytes
    ► 100 Bytes
    ► 1500 Bytes
  8. In Block Coding Scheme, number of Code word is always data wods.
    ► Equal to
    ► same as
    ► Greater Then
    ► Less then
  9. High-Level Data Link Control(HDLC) defines _types of frames to deal with the transfer modes.
    ► Three
    ► Two
    ► Four
    ► Six
  10. Congestion control is a feature of layer(S)
    ► Transport
    ► All Mentioned
    ► Network
    ► Data Link
  11. Error detection and correction are the services provided by Layer.
    ► Physical Layer
    ► Application Layer
    ► Data Link Layer
    ► Session Layer
  12. IN Linear Block codes,_ of two valid code words creates another valid code word.
    ► AND
    ► OR
    ► XOR
    ► NOR
  13. Stop-and-Wait protocol is used for_
    ► Bothe flow and error control
    ► Error control Only
    ► Flow control Only
    ► Nether flow nor error control
  14. CHAP is an Authentication protocol, which uses_ process to authenticate user information.
    ► Four way
    ► Three Way
    ► Two Way
    ► Five way
  15. Data link layer is divided into sub Layer
    ► Seven
    ► Two
    ► Five
    ► Three
  16. If we need to correct a single error in an 8-bit data unit, we need to consider possible error location.
    ► 16
    ► 2
    ► 8
    ► 4
  17. is not a function of Data Link Control.
    ► Framing
    ► Modulation
    ► Flow control
    ► Error control
  18. The is the number of single elements sent per unit time.
    ► Single rate
    ► Period
    ► Bit rate
    ► Data rate
  19. In ASK, both and remain constant.
    ► Amplitude, Frequency
    ► Amplitude, phase
    ► Frequency, Phase
    ► Amplitude, Samples
  20. In an analog hierarchy to carry voice channels, a group can carry
    voice channels.
    ► 60
    ► 12
    ► 20
    ► 10
  21. Which of the following sublyer resolves the contention for theshared media.
    ► MAC
    ► LLC
    ► Physical
    ► None of the given.
  22. What is the period of a Sine wave having frequency of 5 Hz?
    ► 0.2
    ► 0.1
    ► 0.5
    ► 0.3
  23. In CRC there is no error if the remainder at the receiver is
    .
    ► Equal to the remainder at the sender
    ► Zero
    ► Nonzero
    ► The quotient at the sender
  24. Analog To Analog Conversion Methods include .
    ► AM, PM and FM
    ► AM, FSK and PM
    ► AM, PM and QAM
    ► None of the given
  25. Signals travel through fiber optic cable are in the form of
    .

► Light
► Bits
► Electromagnetic
► Bytes

  1. If the Hamming distance between sent and received code word is
    , then it shows that received data is corrupted.
    ► ≠ 0
    ► = 0
    ► ≠ 1
    ► = 1
  2. The flag in PPP is a byte that needs to be whenever it appears in the data section of the frame.
    ► Duplicated
    ► Blocked
    ► Cleaned
    ► Escaped
  3. is normally used where speed is priority in datatransfer.
    ► Serial data transmission
    ► Hybrid data transmission
    ► Parallel data transmission
    ► Both parallel and serial data transmission
  4. Baud rate is greater than or equal to the bit rate.
    ► True
    ► False
  5. is an Authentication Protocol, which is used by the PPPto authenticate passwords.
    ► CHAP
    ► PAP
    ► LCP
    ► ICMP
  6. In Pure ALOHA, the vulnerable time is the frame transmission time.
    ► Same as
    ► Two times
    ► Three times
    ► Four times
  7. A broadcast signal is received by the orbiting satellites whichrebroadcasts .
    ► to the resender
    ► to the sender
    ► to the atmosphere
    ► none of the given
  8. In TCP/IP protocol suite, the process of adding header at eachlayer on sending side is known as .

► Encapulation
► De-encapulation
► Packetizing
► Framing

  1. By using system, change in the file contentsduring file transmission can be avoided.
    ► Routing
    ► Flow Control
    ► Error Detection and Correction
    ► Congestion Control
  2. Which of the following consist of just one redundant bit per dataunit?
    ► Two dimensional Parity check.
    ► CRC
    ► Simple Parity Check
    ► Checksum
  3. If duration of noise is decreased during a transmission over noisychannel, fixed data rate of the channel will cause
    number of bits being impacted by the noise.
    ► Constant
    ► More
    ► Less
    ► Zero
  4. The extra bits added with the original data for errordetection/correction are called .
    ► Fault bits
    ► Port numbers
    ► Redundant bits
    ► Process IDs
  5. Flow control is needed to prevent .
    ► Bit errors
    ► Overflow of the sender buffer
    ► Overflow of the receiver buffer
    ► Collision between sender and receiver
  6. The inversion of the level represents a 1 bit in encoding
    ► NRZ-I
    ► NRZ-L
    ► RZ
    ► Manchester
  7. The term means that only one bit of a given data unit ischanged from 1 to 0 or from 0 to 1.
    ► Packet Error
    ► Burst Error
    ► Single Bit Error
    ► Character Error
  8. A sine wave is defined by characteristics.
    ► 2
    ► 3
    ► 4
    ► 5
  9. Quadrature Amplitude Modulation (QAM) is the combination of
    and .
    ► FSK, PSK
    ► PSK, FSK
    ► ASK, PSK
    ► ASK, FSK
  10. If we need to correct a single error in an 8-bit data unit, we needto consider
    possible error locations.
    • 16
    • 2
    • 4
    • 8
  11. To calculate the data rate for noisy channel formula is used.
    ► Shannon
    ► Nyquist
    ► Propagation
    ► Greedy
  12. GO-BACK-N protocol is one of the layer protocols, which is used to control the flow of data during the transmission.
    ► Physical
    ► Network
    ► Presentation
    ► Data link
  13. A modem is used to connect two DTEs directly.
    ► ‘NULL
    ► Cable
    ► DSL
    ► None of the given
  14. Time division multiplexing is used in systems.
    ► Analog
    ► Hybrid
    ► Digital
    ► Automated
  15. In OSI model headers are added at layer .
    ► 1,2,3 only
    ► 6,5,7 only
    ► 5,4,3 only

► 6,5,4,3,2 only

  1. Line Configuration refers to the way two or more devices attachto a .
    ► Path
    ► Circuit
    ► Link
    ► Router
  2. A sine wave is .
    ► periodic and discrete
    ► aperiodic and discrete
    ► periodic and continuous
    ► aperiodic and continuous
  3. The logical connection between the peer layers is connection.
    ► Physical
    ► Direct
    ► Indirect
    ► Tengible
  4. What is the frequency of a sine wave if it completes one cycle in2 seconds?
    ► 0.5
    ► 0.6
    ► 0.3
    ► 0.2
  5. In Synchronous TDM, Time slots are not same in number asinput devices.
    ► True
    ► False
  6. category of coaxial cable is used for thin Ethernet.
    ► RG-58
    ► RG-59
    ► RG-1
    ► RG-47
  7. Radio wave transmission utilizes different types of propagation.
    ► Two
    ► Three
    ► Four
    ► Five
  8. BSC supports transmission using
    flow control.
    ► Full-duplex, Stop and wait ARQ
    ► Half-duplex, Selective reject ARQ
    ► Full-duplex, Selective reject ARQ
    ► Half-duplex, Stop and wait ARQ
  9. In selective-reject ARQ, only the specific damaged or lost frameis .
    ► Retransmitted
    ► Forwarded
    ► Selected

► Rejected

  1. Error detection and correction are the services provided by
    layer.
    ► Data link layer
    ► Application layer
    ► Physical layer
    ► Session layer
  2. The generates the data and passes it along withany control information to a .
    ► DTE, DCE
    ► DCE, DTE
    ► DTE, DTE
    ► DCE, DCE
  3. Analog refers to something that is continuous in .
    ► Time
    ► Space
    ► Frequency
    ► None of the given
  4. Time domain shows changes in .
    ► time w.r.t signal amplitude
    ► signal amplitude w.r.t time
    ► time
    ► All of the given
  5. Mr. Asif while sitting in Lahore is talking with his friend in Dubaithrough Skype is an example of .
    ► Local Area Network
    ► Metropolitan Area Network
    ► Wide Area Network
    ► Home Based Network
  6. Which level of the TCP/IP reference model routesdata/information across a network channel?
    ► Application Layer
    ► Data Link Layer
    ► Transport Layer
    ► Network Layer
  7. There are types of serial transmission.
    • 3
    • 4
    • 2
    • None of the given
  8. Latency is made of components.
    ► Two
    ► Three

► Four
► Five

  1. Like 10 Base 5, 10 Base 2 is a topology LAN.
    ► Ring
    ► Mesh
    ► Star
    ► Bus
  2. is the rate of change with respect to time.
    a. Voltage
    b. Time
    c. Frequency
    d. Amplitude
  3. Two or more computers connected so that they can communicate with each other and share information is called a
    .
    ► satellite
    ► protocol
    ► broadcast
    ► network
  4. Which error detection method consists of a parity bit for each unit aswell as an entire data unit of parity bits?
    ► Checksum
    ► Cyclic Redundancy Check (CRC)
    ► Longitudinal Red Check (LRC)
    ► Vertical Redundancy Check (VRC)
  5. Central Hub in a Tree is an .
    ► Active hub
    ► passive hub
  6. Time domain plot show changes in signal phase with respect to time.
    ► true
    ► false
  7. is an Authentication Protocol, which uses two-step processto authenticate user information.
    ► CHAP
    ► LCP
    ► PAP
    ► ICMP
  8. CHAP is an Authentication Protocol, which uses process to authenticate user information.
    ► Two-way
    ► Three-way
    ► Four-way
    ► Five-way
  9. No matter whether the link is dedicated or broadcast, data link control (DLC) layer provides services between .
    ► Virtual LANs
    ► Two adjacent nodes
    ► Ethernet links
    ► Source and destination PCs
  10. Encoding digital data into digital signals is called .
    ► Analog-to-Digital Conversion
    ► Digital-to-Digital Conversion
    ► Digital-to-Analog Conversion
    ► None of the given
  11. encoding is almost obsolete today
    ► Bipolar
    ► Unipolar
    ► Polar
    ► None of the given
  12. The Internet is .
    ► 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
  13. PSK is susceptible to the noise degradation.
    ► True
    ► False
  14. Low pass channel has bandwidth between two stations.
    ► Dedicated
    ► Shared
    ► Multiplexed
    ► Infinite
  15. In ASK, Noise usually affects the .
    ► Amplitude
    ► Phase
    ► Sample
    ► Frequency
  16. The flag in PPP is a byte that needs to be whenever it appears in the data section of the frame.
    ► Duplicated
    ► Blocked
    ► Cleaned
    ► Escaped
  17. Which of the following is not a characteristic of a sine wave?
    ► Amplitude
    ► Segmentation
    ► Phase

► Frequency

  1. In statistical time division multiplexing, number of slots in frame areless than .
    ► Output data rate
    ► Input lines
    ► Input frequency
    ► Multiplexed T lines
  2. If a digital signal has “L” number of levels. is the numberof bits required to represent each level.
    ► Log L
    ► Log Base 2 L
    ► L Square
    ► Log(2*L)
  3. is responsible for governing node to node communication.
    ► Application Layer
    ► Session Layer
    ► Data Link layer
    ► Presentation Layer
  4. The original Ethernet technology with the data rate of 10 Mbps is called ?
    ► Standard Ethernet
    ► Fast Ethernet
    ► Gigabit Ethernet
    ► 10 Gigabit Ethernet
  5. What is the period of a Sine wave having frequency of 2 Hz?
    ► 0.2
    ► 0.1
    ► 0.5
    ► 0.3
  6. In line discipline after the data transmission, the sending system finishes with an
    ► EOT
    ► EKT
    ► ENT
    ► ESP
  7. are used for Multi cas communication, such as radio and Television.
    ► Microwaves
    ► Radio Waves
    ► Light waves
    ► Infrared Wave

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CS601 Update Finalterm Solved Past Papers

CS601 Update Finalterm Solved Past Papers
CS601 Update Finalterm Solved Past Papers

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