Advanced Telecommunication Technologies Mid - I, September - 2014

1._____________ is the low-level media access control protocol for transferring the actual data.
  • ISDN
  • B-ISDN
  • ATM
  • all
Answer: B
2.Telephone-link services are the example of ________________
  • Messaging services
  • Conversational
  • Retrieval
  • Distribution
Answer: B
3.Traditional electronic mail is the example of _____________
  • Messaging services
  • Conversational
  • Retrieval
  • Distribution
Answer: A
4.General broadcast signaling virtual channels are _______________
  • Unidirectional
  • Bidirectional
  • Both a and b
  • directionless
Answer: A
5.The ATM layer is ________________of the physical medium.
  • Dependent
  • Independent
  • both a and b
  • None
Answer: B
6.The _______________ extends between network elements that assemble and disassemble the payload of a transmission system.
  • Transmission path
  • Virtual channel
  • Digital section
  • B-ISDN
Answer: A
7.In _______________ signaling access configurations, one pre-established signaling virtual channel can be used.
  • Point to multipoint
  • multipoint to multipoint
  • point to point
  • all
Answer: C
8.__________ratio is the ratio of the number of severely errored cell blocks to total number of cell blocks.
  • Cell loss
  • peak cell
  • cell misinsertion
  • cell error
Answer: D
9.The ATM layer is the layer above the __________________
  • Data link
  • Network
  • Application
  • Physical
Answer: D
10.ATM is a __________________oriented technique
  • Connection-less
  • connection
  • both a and b
  • none
Answer: B
11.____________________is a set of communications protocols designed to transport a wide range of services simultaneously.
Answer: Broadband ISDN
12.________________________is the transfer mode of implementing B-ISDN and is independent of the means of transport at the physical layer.
Answer: Asynchronous transfer mode (ATM)
13.A concept used to describe unidirectional transport of ATM cells associated by a common unique Identifier is called _____________________
Answer: Virtual channel identifier
14.In B-ISDN the concept provides the means logically to separate signaling channel from user channels.
Answer: Virtual channel
15.The ___________________of an ATM connection is the inverse of the minimum inter-arrival time between two requests to send an ATM cell.
Answer: Peak cell rate
16.The _______________________is between the ATM layer and higher layers.
Answer: ATM Adaptation layer
17.Expand PRM _______________________
Answer: Protocol reference model
18.______________________is the number of misinserted cells per connection round.
Answer: Cell misinsertion rate
19.__________________________are basically end-to-end, real time communications between user and a service provider.
Answer: Conversational services
20.In LAN-like switching operation mode __________________ terminals are used.
Answer: Bidirectional