Bihar SBTE Diploma CSE 5 Sem Dec 2019 Data Communication & Network Paper

Bihar SBTE Diploma CSE 5 Sem Dec 2019 Data Communication & Network Paper

Sr. No. Questions with options
1 Communication between a computer and a keyboard involves _____ transmission.

(a) Automatic

(b)                        Half-duplex

(c) Full-duplex

(d)                        Simplex

2 The _____ is the physical path over which a message travels

(a) Path

(b)                        Medium

(c) Protocol

(d)                        Route

3 Home access is provided by

(a) DSL

(b)                        FTTP

(c) Cable

(d)                        All of the mentioned

4 Choose the statement which is NOT applicable for cable interest access

(a) It is a shared broadcast medium

(b)                        It includes HCFs

(c) Cable modem connects home PC  to Ethernet port

(d)                        Analog signal is converted to digital signal in DSLAM.

(e)

5 Two devices can share a single link

(a) Multipoint

(b)                        Pont-to-point

(c) Primary

(d)                        Secondary

6 Transmission data rat is decided by

(a) Network layer

(b)                        Physical layer

(c) Data link layer

(d)                        Transport layer

7 HFC contains

(a) Fiber cable

(b)                        Coaxial cable

(c) Both (a) & (b)

(d)                        None of these

8 A single channel is shared by multiple

(a) Analog modulation

(b)                        Digital modulation

(c) Multiplexing

(d)                        None of these

9 In virtual circuit network each packet contains

(a) Full source and destination address

(b)                        A short VC number

(c) Only source address

(d)                        Only destination address

10 Automatic repeat request error management mechanism is provided by

(a) Logical link control sub layer

(b)                        Medium access control sub layer

(c) Network interface control sub layer

(d)                        None of these

11 Which of the following is aversion of UDP  with congestion control ?

(a) Datagram congestion control protocol

(b)                        Stram control transmission protocol

(c) Structured stream transport

(d)                        None of these

12 Which one of the following is NOT used to generate dynamic web pages ?

(a) PHP

(b)                        ASP.NET

(c) JSP

(d)                        None of these

13 Data communication system within a building or campus is

(a) LAN

(b)                        WAN

(c) MAN

(d)                        None of these

14 In segment header sequence number and acknowledgement number field refers to

(a) Byte number

(b)                        Buffer number

(c) Segment number

(d)                        Acknowledgement

15 The value of acknowledgement field in a segment defines

(a) Number of previous bytes to receive

(b)                        Total number of bytes to receive

(c) Number of next byte to receive

(d)                        Sequence to zero’s and one’s

16 In wireless distribution system

(a) Multiple access point are inter-connected with each other

(b)                        There is no access point

(c) Only one access point exists

(d)                        None of the mentioned

17 A wireless network interface controller can work in

(a) Infrastructure mode

(b)                        Ad-hoc mode

(c) (a) and (b) both

(d)                        None of the mentioned

18 The Dos attack is which the attacker establishes & large number of half-open or fully open TCP connections at the target host

(a) Vulnerability attack

(b)                        Connection flooding

(c) Bandwidth flooding

(d)                        All of the above

19 In the resource are reserved between two communicating end systems in circuit switching, this is achieved

(a) Authentication

(b)                        Guaranteed constant rate

(c) Reliability

(d)                        Stone and forward

20 Application layer is implemented in

(a) End system

(b)                        NIC

(c) Ethernet

(d)                        None of these

   
  Data Collected By – K. Jeyanthi
  Published on – 13th April 2022
   
   

 


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