The physical layer is responsible for _____ a) line coding b) channel coding c) modulation d) all of the mentioned

The physical layer is responsible for
_____
a) line coding
b) channel coding
c) modulation
d) all of the mentioned
by

1 Answer

Answer :

d) all of the mentioned
by

Related questions

A single channel is shared by multiple signals by _____ a. analog modulation b. digital modulation c. multiplexing d. phase modulation

Description : A single channel is shared by multiple signals by _____ a. analog modulation b. digital modulation c. multiplexing d. phase modulation

Last Answer : c. multiplexing

The ______ layer is responsible for the movementof a signal across a physical section. A) section B) line C) path D) photonic

Description : The ______ layer is responsible for the movementof a signal across a physical section. A) section B) line C) path D) photonic

Last Answer : section

The physical layer provides __________a. mechanical specifications of electrical connectors and cables b. electrical specification of transmission line signal level c. specification for IR over optical fiber d. all of the mentioned

Description : The physical layer provides __________ a. mechanical specifications of electrical connectors and cables b. electrical specification of transmission line signal level c. specification for IR over optical fiber d. all of the mentioned

Last Answer : d. all of the mentioned

The physical layer provides __________ A. mechanical specifications of electrical connectors and cables B. electrical specification of transmission line signal levelC. specification for IR over optical fiber D. all of the mentioned

Description : The physical layer provides __________ A. mechanical specifications of electrical connectors and cables B. electrical specification of transmission line signal level C. specification for IR over optical fiber D. all of the mentioned

Last Answer : D. all of the mentioned

What specifications does physical layer provides __________. A. mechanical specifications of electrical connectors and cablesB. electrical specification of transmission line signal level C. specification for IR over optical fiber D. all of the mentioned

Description : What specifications does physical layer provides __________. A. mechanical specifications of electrical connectors and cables B. electrical specification of transmission line signal level C. specification for IR over optical fiber D. all of the mentioned

Last Answer : D. all of the mentioned

The physical layer provides __________ a) mechanical specifications of electrical connectors and cables b) electrical specification of transmission line signal level c) specification for IR over optical fiber d) all of the mentioned

Description : The physical layer provides __________ a) mechanical specifications of electrical connectors and cables b) electrical specification of transmission line signal level c) specification for IR over optical fiber d) all of the mentioned

Last Answer : d) all of the mentioned

_____ provides redundancy toensure synchronization and inherent errordetection. A) Block coding B) Line coding C) Scrambling D) None of the above

Description : _____ provides redundancy toensure synchronization and inherent errordetection. A) Block coding B) Line coding C) Scrambling D) None of the above

Last Answer : Block coding

In ATM, the _____ layer defines thetransmission medium,bit transmission,encoding, and electrical-to-optical transformation. A) physical B) ATM layer C) AAL D) none of the above

Description : In ATM, the _____ layer defines thetransmission medium,bit transmission,encoding, and electrical-to-optical transformation. A) physical B) ATM layer C) AAL D) none of the above

Last Answer : physical

The ______ layer is responsible for the movementof a signal from its optical source to its optical destination. A) section B) line C) path D) photonic

Description : The ______ layer is responsible for the movementof a signal from its optical source to its optical destination. A) section B) line C) path D) photonic

Last Answer : line

Circuit switching takes place at the________ layer. A) data line B) physical C) network D) transport

Description : Circuit switching takes place at the________ layer. A) data line B) physical C) network D) transport

Last Answer : physical

The sharing of a medium and its link by two or more devices is called _______. A) modulation B) encoding C) line discipline D) multiplexing

Description : The sharing of a medium and its link by two or more devices is called _______. A) modulation B) encoding C) line discipline D) multiplexing

Last Answer : multiplexing

Modulation is theprocessof A. converting analogsignals todigital signals B. converting digital signals toanalog signals C. Multiplexing various signals intohigh speed line signals D. performing data encryption

Description : Modulation is theprocessof A. converting analogsignals todigital signals B. converting digital signals toanalog signals C. Multiplexing various signals intohigh speed line signals D. performing data encryption

Last Answer : converting digital signals toanalog signals

1000Base-SX, 1000Base-LX, and 1000Base-CX use _________ block coding and ________ line coding. A) 4B/5B; NRZ B) 8B/10B; NRZ C) 4B/5B; MLT-3 D) 8B/10B; NRZ

Description : 1000Base-SX, 1000Base-LX, and 1000Base-CX use _________ block coding and ________ line coding. A) 4B/5B; NRZ B) 8B/10B; NRZ C) 4B/5B; MLT-3 D) 8B/10B; NRZ

Last Answer : 8B/10B; NRZ

In ________, we combine signals from different sources to fit into a larger bandwidth. A) spread spectrum B) line coding C) block coding D) none of the above

Description : In ________, we combine signals from different sources to fit into a larger bandwidth. A) spread spectrum B) line coding C) block coding D) none of the above

Last Answer : spread spectrum

______ provides synchronization without increasingthe number of bits. A) Scrambling B) Line coding C) Block coding D) None of the above

Description : ______ provides synchronization without increasingthe number of bits. A) Scrambling B) Line coding C) Block coding D) None of the above

Last Answer : Scrambling

_______ isnormally referred toas mB/nB coding; it replaceseach m-bit group with an n-bit group. A) Block coding B) Line coding C) Scrambling

Description : _______ isnormally referred toas mB/nB coding; it replaceseach m-bit group with an n-bit group. A) Block coding B) Line coding C) Scrambling

Last Answer : Block coding

________ is the process of converting digitaldata to adigital signal. A) Block coding B) Line coding C) Scrambling D) None of the above

Description : ________ is the process of converting digitaldata to adigital signal. A) Block coding B) Line coding C) Scrambling D) None of the above

Last Answer : Line coding

__________ conversion involves three techniques: line coding,block coding, and scrambling. A) Analog-to-digital B) Digital-to-analog C) Analog-to-analog D) Digital-to-digital

Description : __________ conversion involves three techniques: line coding,block coding, and scrambling. A) Analog-to-digital B) Digital-to-analog C) Analog-to-analog D) Digital-to-digital

Last Answer : Digital-to-digital

Suppose transmission rate of a channel is 32 kbps. If there are ‘8’ routes from source to destination and each packet p contains 8000 bits. Total end to end delay in sending packet P is _____. a. 2 sec b. 3 sec c. 4 sec d. 1 sec

Description : Suppose transmission rate of a channel is 32 kbps. If there are ‘8’ routes from source to destination and each packet p contains 8000 bits. Total end to end delay in sending packet P is _____. a. 2 sec b. 3 sec c. 4 sec d. 1 sec

Last Answer : a. 2 sec

Which of the following layer protocols are responsible for user and theapplicationprogrammesupport such aspasswords, resource sharing, file transfer and network management? A. Layer 7 protocols B. Layer 6 protocols C. Layer 5 protocols D. Layer 4 protocols E. None of the above

Description : Which of the following layer protocols are responsible for user and theapplicationprogrammesupport such aspasswords, resource sharing, file transfer and network management? A. Layer 7 protocols B. Layer 6 protocols C. Layer 5 protocols D. Layer 4 protocols E. None of the above

Last Answer : Layer 7 protocols

Which of the following layers of the OSI model is responsible for user interaction? a.Layer 4 b.Layer 5 c.Layer 6 d.Layer 7

Description : Which of the following layers of the OSI model is responsible for user interaction? a.Layer 4 b.Layer 5 c.Layer 6 d.Layer 7

Last Answer : d.Layer 7

In OSI model, session layer is responsible for a. Recovery b. Check pointing c. Both a and b d. None of the above

Description : In OSI model, session layer is responsible for a. Recovery b. Check pointing c. Both a and b d. None of the above

Last Answer : c. Both a and b

Which layer is responsible for process to process delivery in a general network model? a) network layer b) transport layer c) session layer d) data link layer

Description : Which layer is responsible for process to process delivery in a general network model? a) network layer b) transport layer c) session layer d) data link layer

Last Answer : b) transport layer

Application layer protocol defines ____ a.types of messages exchanged b.message format, syntax and semantics c.rules for when and how processes send and respond to messages d.all of the mentioned

Description : Application layer protocol defines ____ a.types of messages exchanged b.message format, syntax and semantics c.rules for when and how processes send and respond to messages d.all of the mentioned

Last Answer : d.all of the mentioned

The functionalities of the presentation layer include ____________ a. Data compression b. Data encryption c. Data description d. All of the mentioned

Description : The functionalities of the presentation layer include ____________ a. Data compression b. Data encryption c. Data description d. All of the mentioned

Last Answer : d. All of the mentioned

Which of the following routing algorithms can be used for network layer design? a. shortest path algorithm b. distance vector routing c. link state routing d. all of the mentioned

Description : Which of the following routing algorithms can be used for network layer design? a. shortest path algorithm b. distance vector routing c. link state routing d. all of the mentioned

Last Answer : d. all of the mentioned

The functionalities of the presentation layer include ____________ a. Data compression b. Data encryption c. Data description d. All of the mentioned

Description : The functionalities of the presentation layer include ____________ a. Data compression b. Data encryption c. Data description d. All of the mentioned

Last Answer : d. All of the mentioned

The Application layer offers _______ service. A. End to end B. Process to process C. Both End to end and Process to process D. None of the mentioned

Description : The Application layer offers _______ service. A. End to end B. Process to process C. Both End to end and Process to process D. None of the mentioned

Last Answer : A. End to end

Header of a Layer two frame usually contain ______________ A. synchronization bytes B. addresses C. frame identifier D. all of the mentioned

Description : Header of a Layer two frame usually contain ______________ A. synchronization bytes B. addresses C. frame identifier D. all of the mentioned

Last Answer : D. all of the mentioned

Transmission control protocol ___________ a) is a connection-oriented protocol b) is a connectionless protocol c) is a protocol working on application layer d) all of the mentioned

Description : Transmission control protocol ___________ a) is a connection-oriented protocol b) is a connectionless protocol c) is a protocol working on application layer d) all of the mentioned

Last Answer : a) is a connection-oriented protoco

The functionalities of the presentation layer include ____________ a) Data compression b) Data encryption c) Data description d) All of the mentioned

Description : The functionalities of the presentation layer include ____________ a) Data compression b) Data encryption c) Data description d) All of the mentioned

Last Answer : d) All of the mentioned

The _____ layer uses data compression to reduce the number of bits to be transmitted. a. presentation b. network c. data link d. application

Description : The _____ layer uses data compression to reduce the number of bits to be transmitted. a. presentation b. network c. data link d. application

Last Answer : a. presentation

The _____ layer lies between the session layer and he application layer. a. network b. transport c. data link d. presentation

Description : The _____ layer lies between the session layer and he application layer. a. network b. transport c. data link d. presentation

Last Answer : d. presentation

Transport layer protocols deals with _____ a. application to application communication b. process to process communication c. node to node communication d. man to man communication

Description : Transport layer protocols deals with _____ a. application to application communication b. process to process communication c. node to node communication d. man to man communication

Last Answer : b. process to process communication

Transport layer protocols deals with _____ a. application to application communication b. process to process communication c. node to node communication d. man to man communication

Description : Transport layer protocols deals with _____ a. application to application communication b. process to process communication c. node to node communication d. man to man communication

Last Answer : b. process to process communication

Layer one of the OSI model is a. physical layer b. link layer c. transport layer d. network layer e. none of above

Description : Layer one of the OSI model is a. physical layer b. link layer c. transport layer d. network layer e. none of above

Last Answer : physical layer

In the Ethernet, the _______field is actually added at the physical layer and isnot (formally)part of the frame. A) CRC B) preamble C) address D) none of the above

Description : In the Ethernet, the _______field is actually added at the physical layer and isnot (formally)part of the frame. A) CRC B) preamble C) address D) none of the above

Last Answer : preamble

The _______ layer of Ethernet consistsof the LLC sublayer and the MAC sublayer. A) data link B) physical C) network D) none of the above

Description : The _______ layer of Ethernet consistsof the LLC sublayer and the MAC sublayer. A) data link B) physical C) network D) none of the above

Last Answer : data link

A repeater is a connecting devicethat operates in the _______ layer of theInternet model. A) physical B) data link C) network D) all of theabove

Description : A repeater is a connecting devicethat operates in the _______ layer of theInternet model. A) physical B) data link C) network D) all of theabove

Last Answer : physical

Transmission media lie below the_______ layer. A) physical B) network C) transport D) application

Description : Transmission media lie below the_______ layer. A) physical B) network C) transport D) application

Last Answer : physical

In ATM, the _______layeraccepts transmissions from upper-layer servicesand maps them into ATM cells. A) physical B) ATM C) AAL D) none of the above

Description : In ATM, the _______layeraccepts transmissions from upper-layer servicesand maps them into ATM cells. A) physical B) ATM C) AAL D) none of the above

Last Answer : AAL

Frame Relay has_______. A) only the physical layer B) only thedata link C) the physical and data link layers D) the physical, data link, andnetwork layers

Description : Frame Relay has_______. A) only the physical layer B) only thedata link C) the physical and data link layers D) the physical, data link, andnetwork layers

Last Answer : the physical and data link layers

The routing processor of arouter performs the ________ layer functions of therouter. A) physical and data link B) network C) transport D) none of the above

Description : The routing processor of arouter performs the ________ layer functions of therouter. A) physical and data link B) network C) transport D) none of the above

Last Answer : network

The inputand output portsof a router perform the ________ layer functions of therouter. A) physical and data link B) network C) transport D) none of the above

Description : The inputand output portsof a router perform the ________ layer functions of therouter. A) physical and data link B) network C) transport D) none of the above

Last Answer : physical and data link

The layer of OSI model can use the trailer of the frame for error detection. A) Physical B) Data link C) Transport D) Presentation

Description : The layer of OSI model can use the trailer of the frame for error detection. A) Physical B) Data link C) Transport D) Presentation

Last Answer : A) Physical

The layer one of the OSI model is A) Physical layer B) Link layer C) Router layer D) Broadcast layer

Description : The layer one of the OSI model is A) Physical layer B) Link layer C) Router layer D) Broadcast layer

Last Answer : A) Physical layer

The..............layer change bits onto electromagnetic signals. A) Physical B) Transport C) Data Link D) Presentation

Description : The..............layer change bits onto electromagnetic signals. A) Physical B) Transport C) Data Link D) Presentation

Last Answer : A) Physical

Which layer provides the services to user? a.application layer b.session layer c.presentation layer d.physical layer

Description : Which layer provides the services to user? a.application layer b.session layer c.presentation layer d.physical layer

Last Answer : a.application layer

The TCP/IP _______ layer is equivalent to the combined session, presentation, and application layers of the OSI model. a.data link b.network c.physical d.application

Description : The TCP/IP _______ layer is equivalent to the combined session, presentation, and application layers of the OSI model. a.data link b.network c.physical d.application

Last Answer : d.application

What is the main function of Session layer in OSI model? a. Defines how data is formatted between the devices b. Made physical connection between server and client c. Both a and b d. None of the above

Description : What is the main function of Session layer in OSI model? a. Defines how data is formatted between the devices b. Made physical connection between server and client c. Both a and b d. None of the above

Last Answer : a. Defines how data is formatted between the devices