Online Mcqs Test – Mobile Computing MCQ with Answers

Online Mcqs Test – Mobile Computing MCQ with Answers

Online Mcqs Test – Mobile Computing MCQ with Answers -All these are very important MCQ questions related to mobile computing and mobile and wireless communication to get success in written as well as interview examinations.

 

 

Gsm in mobile computing

Q1. Which of the following stores all the user-related data that is relevant for the GSM system in mobile computing?

1. Sim
2. HLR
3. ELR
4. VLR

Answer 1

 

Q2. Which of the following stores Mobile Subscriber ISDN number – MSISDN?

1. Home location register
2. Visitor location register
3. Entity equipment register
4. None of the above

Answer 1

 

Q3. In which of the following Codes with specific characteristics can be applied to the transmission?

1. GSM
2. GPRS
3. CDMA
4. None of the above

Answer 3

 

Q4. Which of the following allow the use of entire bandwidth simultaneously?

1. TDMA
2. FDMA
3. CDMA
4. None of the above

Answer 3

 

Q5. The base station covers a specific area that is called a ——

1. Cell
2. Tessellate
3. Mobile station
4. None of the above

Answer 1

 

Q6. In a cellular system, the shape of the cell depends on —–

1. Environmental conditions
2. Social conditions
3. Political conditions
4. None of the above

Answer 1

 

Q7. Cellular System or having small cells needs ——–

1. Handover
2. Infrastructure
3. Frequency planning
4. All of the above

Answer 4

 

Q8. In a cellular system, the same frequency is used for other users using the technique ———-

1. Frequency planning
2. Frequency hopping
3. Frequency reuse
4. None of the above

Answer 3

 

Q9. Which of the following provides packet mode data transfer service over the cellular network system?

1. GSM
2. GPRS
3. TCP
4. None of the above

Answer 2

 

Q10. Which of the following services/ services are defined by the GSM?

1. Bearer
2. Supplementary
3. Tele
4. All of the above

Answer 4

 

Bluetooth Technology

Online Mcqs Test – Mobile Computing MCQ with Answers

Q11. Bluetooth Technology supports

1. Piconet
2. Ad hoc piconet
3. Scatter net
4. All of the above

Answer 4

 

Q12. Which of the following wireless technology is used for exchanging data between a variety of fixed and mobile devices over a very short diameter?

1. Mobile technology
2. Bluetooth technology
3. Ad hoc computing
4. None of the above

Answer 2

 

Q13. In Bluetooth which of the following device decides the hopping sequence?

1. Master
2. Parked
3. Standby
4. Slave

Answer 1

 

Q14. In which of the following the total available bandwidth is split into many channels of smaller bandwidth plus guard spaces between the channels?

1. FHSS
2. DSSS
3. Both a and b
4. None of the above

Answer 1

 

Q15. In which of the following a single data stream is split across several separate narrowband channels at different frequencies to reduce interference and crosstalk.

1. OFDM
2. GSM
3. GPRS
4. UMTS

Answer 1

 

Q16. Which of the following uses high-frequency radio waves instead of cables for connecting the devices in LAN?

1. Wired LAN
2. Wireless LAN
3. Fiber made LAN
4. None of the above

Answer 2

 

Q17. Most WLANs are based upon the standard—-

1. IEEE 802.2
2. IEEE 802.11
3. IEEE 802.5
4. IEEE 802.15

Answer 2

 

Q18. Which of the following is/are the advantages of a wireless LAN?

1. Flexibility
2. Ease of use
3. Robustness
4. All of the above

Answer 4

 

Q19. Disadvantages of WLANs include —–

1. Interference and noise
2. Slower than wired
3. Greater care is needed for encryption
4. All of the above

Answer 4

 

Q20. In piconet devices connected with the master is called

1. Slaves
2. Parked
3. Standby
4. None of the above

Answer 1

Online Mcqs Test – Mobile Computing MCQ with Answers

 

Q21  The general goal of a file system is to support———-

1. Transparent access to data
2. Efficient access to data
3. Consistent access to data
4. All of the above

Answer 4

 

Q 22 In the distributed system a client gives the request, and the server provides—-

1. Data
2. Service
3. Information
4. All of the above

Answer 2

 

Q 23. The important challenges of distributed systems apply to DFS are ——

1. Migration of data
2. Concurrent access to data
3. Replication of data
4. All of the above

Answer 4

 

Q24. Features of CODA is/are

1. A disconnected operation for mobile computing
2. Freely available under a liberal license
3. High performance through client-side persistent caching
4. All of the above

Answer 4

 

Q25. Which of the file system apply gossip protocols?

1. CODA
2. Ficus
3. Rover
4. None of the above

Answer 2

 

Q26. Mio-NFS supports the following mode/modes ———-

1. Connected
2. Loosely connected
3. Disconnected
4. All of the above

Answer 3

 

Q27. Which of the following are objects that can be dynamically loaded into a client computer from a server (or vice-versa) to reduce client-server communication?

1. Relocatable dynamic objects
2. Locatable objects
3. Dynamic objects
4. None of the above

Answer 1

 

Q28 Which of the following allows for non-blocking RPCs even when a host is disconnected?

1. Queued remote procedure calls
2. Remote procedure calls
3. Both a and b
4. None of the above

Answer 1

 

Q29. All transactions must satisfy the —–

1. Consistency
2. Availability
3. ACID Property
4. All of the above

Answer 3

 

Q 30. The ability of a system to perform its function correctly even in the presence of internal faults is called

1. Fault tolerance
2. Recovery
3. Both a and b
4. None of the above

Answer 3

TCP IP MCQ

Online Mcqs Test – Mobile Computing MCQ with Answers

 

Q 31.  TCP is a reliable protocol that incorporates

1. congestion control
2. Flow control mechanisms
3. guarantees in-order delivery of data
4. All of the above

Answer 4

 

Q32.  TCP supports many of the Internet’s most popular application protocols and resulting applications, including

1. World Wide Web
2. e-mail,
3. File Transfer Protocol
4. All of the above

Answer 4

 

Q 33. Which of the following segments a TCP connection into a fixed part and a wireless part?

1. Indirect TCP
2. Direct TCP
3. Both a and b
4. None of the above

Answer 1

 

Q 34. Advantages of Indirect TCP includes

1. Fast transmission
2. Congestion control
3. Error control
4. All of the above

Answer 4

 

Q 35. The main function of snooping TCP is —-

1. To buffer data close to the mobile host to perform fast local retransmission in case of packet loss.
2. Congestion control
3. Flow control
4. None of the above

Answer 1

 

Q 36. I-TCP and Snooping TCP does not help much if a mobile host gets

1. Out of coverage area
2. Disconnected
3. Battery power low
4. None of the above

Answer 2

 

Q 37. M-TCP wants to improve overall throughput to

1. to lower the delay
2. to maintain end-to-end semantics of TCP
3. to provide a more efficient handover
4. All of the above

Answer 4

 

Q 38. Disadvantages of Mobile TCP includes

1. Assuming low bit error rates
2. Lack of buffering
3. Lack of acknowledgment
4. None of the above

Answer 1

 

Q39. A very useful extension of TCP is the use of

1. Buffering packets
2. Congestion control
3. Selective retransmission
4. All of the above

Answer 3

 

Q40. Which of the following combine packets for connection establishment and connection release with user data packets?

1. Transaction oriented TCP
2. Indirect TCP
3. Snooping TCP
4. None of the above

Answer 1

Online Mcqs Test – Mobile Computing MCQ with Answers

 

Q41. Mobile Computing allows transmission of data, from one wireless-enabled device to another —-

1. Any device
2. Wired device
3. Wireless-enabled device
4. None of the above

Answer 3

 

Q42. The most important feature/s of mobile computing technology is/are —-

1. Mobility
2. Portability
3. Wireless connectivity
4. All of the above

Answer 4

 

Q43. Which of the following is the base of most mobile communications?

1. GSM
2. GPRS
3. CDMA
4. None of the above

Answer 1

 

Q44. Which of the following allow the use of only some part of bandwidth?

1. TDMA
2. FDMA
3. Both a and b
4. None of the above

Answer 3

 

Q45. A group of cells without overlapping gaps is called ——

1. Cell
2. Tessellate
3. Mobile station
4. None of the above

Answer 2

 

Q46. In a cellular system, the shape of the cell is generally —–

1. Hexagon
2. Circular
3. Square
4. None of the above

Answer 1

 

Q47. Important mobile computing application/s is/are —–

1. Education
2. Sports
3. Games
4. All of the above

Answer 4

 

Q48. Challenges of mobile computing include ———

1. Low Security
2. Ad hoc Networking
3. Shared medium
4. All of the above

Answer 4

 

Q49. The base station covers a specific area that is called a —-

1. Cell
2. Radius
3. Tessellate
4. None of the above

Answer 1

Online Mcqs Test – Mobile Computing MCQ with Answers

 

Q50. Which of the following services/service are defined within the bearer services?

1. Data transmission
2. Forward error correction
3. Flow control
4. All of the above

Answer 4

 

Q51. The overlapping portion of two piconets is called——–

1. Piconet
2. Ad hoc piconet
3. Scatter net
4. All of the above

Answer 3

 

Q52. Bluetooth technology is used for —-

1. Connection of peripheral devices
2. Ad-hoc networking
3. Bridging network gaps
4. All of the above

Answer 4

 

Q53. In Bluetooth which of the following device follow the hopping sequence?

1. Master
2. Parked
3. Standby
4. Slave

Answer 4

 

Q54. Which of the following system takes a user bitstream and perform an (XOR)? The result is either the sequence 0110101 (if the user bit equals 0) or its complement 1001010 (if the user bit equals 1).

1. FHSS
2. DSSS
3. Both a and b
4. None of the above

Answer 2

 

Q55.    Slow and fast hopping is used in —-

1. FHSS
2. GSM
3. GPRS
4. UMTS

Answer 1

 

Q56. The most WLANs are based upon —-

1. IEEE 802.11
2. WiFi
3. Both a and b
4. None of these

Answer 3

 

Q57. The advantages of WLANs are —–

1. Flexibility
2. Robustness
3. Less cost
4. All of the above

Answer 4

 

Q58. Disadvantages of WLANs are —–

1. Slow speed
2. Noise
3. More effort for Security
4. All of the above

Answer 4

 

Q59. In a piconet, the master device decides the —-

1. Hopping pattern
2. Frequency reuse
3. Channels
4. All of the above

Answer 4

 

Q60. In a Distributed File System, clients access files provided by

1. Other clients
2. Server
3. Access point
4. None of these

Answer 2

 

Online Mcqs Test – Mobile Computing MCQ with Answers

Q61. The goal of a file system is to give———-

1. Consistent data
2. Efficient data
3. Transparent data
4. All of the above

Answer 4

 

Q62. Which of the following file system offers features similar to Andrew File System?

1. CODA
2. ROVER
3. FICUS
4. None of these

Answer 1

 

Q63. Coda has several features not found elsewhere are —–

1. Security
2. Disconnected operation
3. Freely available
4. All of the above

Answer 4

 

Q64. Features of FICUS is/are

1. Detects write conflicts
2. Optimistic use of replicates
3. Solves conflicts on directories
4. All of the above

Answer 4

 

Q65. Which of the file system implements gossip protocols?

1. Ficus
2. Andrews
3. Rover
4. None of the above

Answer 1

 

Q66.Which of the following mode of operation is supported by the MIo-NFS file system?

1. Disconnected
2. Loosely connected
3. Connected
4. All of the above

Answer 1

 

Q67. Which of the following allows Queued remote procedure calls?

1. CODA
2. ROVER
3. FICUS
4. None of the above

Answer 2

 

Q68. Indirect TCP segments a TCP connection into a wireless and a—

1. Fixed part
2. Wired part
3. Both a and b
4. None of the above

Answer 1

 

Q69. All transactions must fulfill the —–

1. Atomicity,
2. Consistency
3. Integrity
4. All of the above

Answer 4

 

Q 70. Which of the following protocols ‘snoops’ the packet flow in both directions to recognize acknowledgments?

1. Indirect TCP
2. Snooping
3. Both a and b
4. None of the above

Answer 4

 

Online Mcqs Test – Mobile Computing MCQ with Answers

 

Q 71.  Which of the following TCP protocol is specially adapted when the problems arising from lengthy or frequent disconnections?

1. Mobile TCP
2. Snooping
3. I-TCP
4. None of these

Answer 1

 

Q72.  TCP supports the most popular application protocols and resulting applications, including

1. www
2. e-mail,
3. FTP
4. All of the above

Answer 4

 

Q 73. Advantages of Indirect TCP are —-

1. Fast transmission
2. Congestion control
3. Flow control
4. All of the above

Answer 4

 

Q 74. I-TCP and Snooping TCP does not support if a mobile host gets —

1. Disconnected
2. Battery power low
3. Out of range
4. None of the above

Answer 1

 

Q 75. The main disadvantage/s of Mobile TCP is/are —

1. Assuming low bit error rates
2. Lack of buffering
3. Lack of acknowledgment
4. None of the above

Answer 1

 

Q76. The most important extension of TCP is the use of

1. Buffering packets
2. Selective retransmission
3. Congestion control
4. All of the above

Answer 2

 

Q77. Which of the following combine packets for connection establishment and connection release with user data packets?

1. Indirect TCP
2. Snooping TCP
3. Transaction oriented TCP
4. None of the above

Answer 3

 

Q78. There is an increase in costs for updates and signaling due to an increase in the number of —– in the mobile database.

1. Elements
2. Replicas
3. Distance between hosts
4. None of these

Answer 2

 

Q79. Which of the following is the ability of a system to perform its function correctly even in the presence of internal faults?

1. Fault tolerance
2. Selective retransmission
3. Congestion control
4. All of the above

Answer 1

 

Q80. Which of the following are the characteristics of mobile computing?

1. Limiting resource availability
2. Limited resource
3. High mobility
4. All of the above

Answer 4

 

 

81. Checksumming over user data and multiplexing/demultiplexing of data from/to applications are the important functions of –

a. Transport Layer

b. Network layer

c. Application Layer

d. All of the above

Answer a: Transport Layer

 

82. Which of the following is network friendly protocol?

a. TCP

b. UDP

c. Both UDP and TCP

d. None

Answer a: TCP

(TCP has built-in mechanisms to behave as ‘network-friendly’. If, for example, TCP encounters packet loss, it assumes network internal congestion and therefore, slows down the transmission rate. This is one of the main reasons to stay with TCP protocol.)

 

83. Which of the protocol does not care congested network and continues to send packets into an already congested network?

a. TCP

b. UDP

c. IP

d. None of the above

Answer b: UDP

 

84. What is the possible reason for a packet loss in a fixed network in the transmission path?

a. Temporary overload at some point

b. Hardware error

d. Software error

e. All of the above

Answer a: Temporary overload at some point  

 

85. To mitigate congestion, TCP

a. Dropdown some packets

c. Slows down the transmission

d. Stop transmission

e. None of the above

Answer b: Slows down the transmission

 

86. The exponential growth of the congestion window in the slow start mechanism refers to

a. Increases the congestion window every time the acknowledgments come back

b. Doubles the congestion window every time the acknowledgments come back

c. Triples the congestion window every time the acknowledgments come back

d. None of the above

Answer b: Doubles the congestion window every time the acknowledgments come back

 

87. The behavior TCP shows after the detection of congestion is called

a. Slow start

b. Packet drop

c. Wait and watch

d. None of the above

Answer a: Slow start

 

88. Which of the following segments a TCP connection into a fixed part and a wireless part?

a. Mobile TCP

b. Classical TCP

c. I-TCP

e. None of the above

Answer c: I-TCP or Indirect TCP

 

89. Which of the following the foreign agent buffers all packets with destination mobile host and additionally ‘snoops’ the packet flow in both directions to recognize acknowledgments?

a. Snooping TCP

b. Indirect TCP

c. Mobile TCP

d. None

Answer a: Snooping TCP

 

90. If a single packet is lost, the sender has to retransmit everything starting from the lost packet, is called

a. go-back-n retransmission

b. Retransmission

d. Selective Transmission

e. None of the above

Answer a: go-back-n retransmission

 

Online Mcqs Test – Mobile Computing MCQ with Answers consists of 90 questions, 10 questions in a set. All these are general MCQ questions related to mobile computing and mobile and wireless communication.