Both Go-Back-N and Selective-Repeat Protocols use a_________. A) sliding frame B) sliding windowC)sliding packetD)none of the above

Both Go-Back-N and Selective-Repeat Protocols use a_________.
A)
sliding frame
B)
sliding window
C)
sliding packet
D)
none of the above
by

1 Answer

Answer :

sliding window
by

Related questions

Inthe _____ Protocol, the sender sends one frame, stops until it receives confirmation from the receiver, and then sends the next frame. A) Stop-and-Wait B) Simplest C) Go-Back-N ARQ D) Selective-Repeat ARQ

Description : Inthe _____ Protocol, the sender sends one frame, stops until it receives confirmation from the receiver, and then sends the next frame. A) Stop-and-Wait B) Simplest C) Go-Back-N ARQ D) Selective-Repeat ARQ

Last Answer : Stop-and-Wait

Inthe _________ protocol weavoid unnecessary transmissionby sending only frames that are corrupted. A) Stop-and-Wait ARQ B) Go-Back-N ARQ C) Selective-Repeat ARQ D) none of the above

Description : Inthe _________ protocol weavoid unnecessary transmissionby sending only frames that are corrupted. A) Stop-and-Wait ARQ B) Go-Back-N ARQ C) Selective-Repeat ARQ D) none of the above

Last Answer : Selective-Repeat ARQ

Inthe _________Protocol, ifno acknowledgment for aframe has arrived, we resend all outstanding frames. A) Stop-and-Wait ARQ B) Go-Back-N ARQ C) Selective-Repeat ARQ D) none of the above

Description : Inthe _________Protocol, ifno acknowledgment for aframe has arrived, we resend all outstanding frames. A) Stop-and-Wait ARQ B) Go-Back-N ARQ C) Selective-Repeat ARQ D) none of the above

Last Answer : Go-Back-N ARQ

The _________Protocol, addsa simple error control mechanism to the _______Protocol. A) Stop-and-Wait ARQ; Stop-and-Wait B) Go-Back-N ARQ; Stop-and-Wait C) Selective Repeat ARQ; Go-Back-N ARQ D) none of the above

Description : The _________Protocol, addsa simple error control mechanism to the _______Protocol. A) Stop-and-Wait ARQ; Stop-and-Wait B) Go-Back-N ARQ; Stop-and-Wait C) Selective Repeat ARQ; Go-Back-N ARQ D) none of the above

Last Answer : Go-Back-N ARQ; Stop-and-Wait

Inthe _____ Protocol, the sender sends its frames oneafter another with noregard to the receiver. A) Stop-and-Wait B) Simplest C) Go-Back-N ARQ D) Selective-Repeat ARQ

Description : Inthe _____ Protocol, the sender sends its frames oneafter another with noregard to the receiver. A) Stop-and-Wait B) Simplest C) Go-Back-N ARQ D) Selective-Repeat ARQ

Last Answer : Stop-and-Wait B) Simplest

In Go-Back-N window, when the timer of the packet times out, several packets have to be resent even some may have arrived safe. Whereas in Selective Repeat window, the sender resends ___________ A. Packet which are not lost B. Only those packets which are lost or corrupted C. Packet from starting D. All the packets

Description : In Go-Back-N window, when the timer of the packet times out, several packets have to be resent even some may have arrived safe. Whereas in Selective Repeat window, the sender resends ___________ A ... lost B. Only those packets which are lost or corrupted C. Packet from starting D. All the packets

Last Answer : B. Only those packets which are lost or corrupted

The distance between two stations M and N is L kilometers. All frames are K bits long. The propagation delay per kilometer is t seconds. Let R bits/second be the channelcapacity. Assuming that processing delay is negligible, the minimum number of bits for the sequence number field in a frame for maximum utilization, when the sliding window protocol used is: a. A b. B c. C d. D

Description : The distance between two stations M and N is L kilometers. All frames are K bits long. The propagation delay per kilometer is t seconds. Let R bits/second be the channel capacity. Assuming that processing ... maximum utilization, when the sliding window protocol used is: a. A b. B c. C d. D

Last Answer : c. C

the maximum window size for data transmission using the selective reject protocol with n-bit frame sequence numbers is: a. 2^n b. 2^(n-1) c. 2^n – 1 d. 2^(n-2)

Description : the maximum window size for data transmission using the selective reject protocol with n-bit frame sequence numbers is: a. 2^n b. 2^(n-1) c. 2^n – 1 d. 2^(n-2)

Last Answer : b. 2^(n-1)

In Selective Repeat ARQ, if 5 is the number ofbits for the sequence number, then the maximum size of the receive window mustbe _____ A) 15 B) 16 C) 31 D) 1

Description : In Selective Repeat ARQ, if 5 is the number ofbits for the sequence number, then the maximum size of the receive window mustbe _____ A) 15 B) 16 C) 31 D) 1

Last Answer : 16

In Selective Repeat ARQ, if 5 is the number ofbits for the sequence number, then the maximum size of the send window must be _____ A) 15 B) 16 C) 31 D) 1

Description : In Selective Repeat ARQ, if 5 is the number ofbits for the sequence number, then the maximum size of the send window must be _____ A) 15 B) 16 C) 31 D) 1

Last Answer : 16

Which ARQ mechanism deals with the transmission of only damaged or lost frames despite the other multiple frames by increasing the efficiency & its utility in noisy channels? a. GoBackN ARQ b. Selective Repeat ARQ c. StopandWait ARQ d. All of the above

Description : Which ARQ mechanism deals with the transmission of only damaged or lost frames despite the other multiple frames by increasing the efficiency & its utility in noisy channels? a. GoBackN ARQ b. Selective Repeat ARQ c. StopandWait ARQ d. All of the above

Last Answer : b. Selective Repeat ARQ

The range of sequence number which is the concern of the receiver is called the receive sliding window. A. receive sliding window. B. sliding window C. frame buffer D. both a and b

Description : The range of sequence number which is the concern of the receiver is called the receive sliding window. A. receive sliding window. B. sliding window C. frame buffer D. both a and b

Last Answer : A. receive sliding window.

Which feature of Go Back N ARQ mechanism possesses an ability to assign the sliding window in the forward direction? a. Control Variables b. Sender Sliding Window c. Receiver Sliding Window d. Resending of frames

Description : Which feature of Go Back N ARQ mechanism possesses an ability to assign the sliding window in the forward direction? a. Control Variables b. Sender Sliding Window c. Receiver Sliding Window d. Resending of frames

Last Answer : b. Sender Sliding Window

Which feature of Go-Back-N ARQ mechanism possesses an ability to assign the sliding window in the forward diretion? A. Control Variables B. Sender Sliding Window C. Receiver Sliding Window D. Resending of frames

Description : Which feature of Go-Back-N ARQ mechanism possesses an ability to assign the sliding window in the forward diretion? A. Control Variables B. Sender Sliding Window C. Receiver Sliding Window D. Resending of frames

Last Answer : B. Sender Sliding Window

To handleframesarrivingfrom other protocols, Frame Relay uses adevice calleda _________. A) VOFR B) FRAD C) MUX D) none of the above

Description : To handleframesarrivingfrom other protocols, Frame Relay uses adevice calleda _________. A) VOFR B) FRAD C) MUX D) none of the above

Last Answer : FRAD

Which of the following technique isused for encapsulation? A. a technique used inbest-effort delivery systems toavoid endlessly loopingpackets. B. a technique used by protocols in which a lower level protocol accepts a message from ahigher level protocol and places it in the data portion of the low level frame. C. One of the pieces that results when an IP gateway divides an IP datagram into smallerpieces for transmission acrossa network that cannothandle the originaldatagram size D. All of theabove E. None of the above

Description : Which of the following technique isused for encapsulation? A. a technique used inbest-effort delivery systems toavoid endlessly loopingpackets. B. a technique used by protocols in which a lower level ... network that cannothandle the originaldatagram size D. All of theabove E. None of the above

Last Answer : a technique used by protocols in which a lower level protocol accepts a message from ahigher level protocol and places it in the data portion of the low level frame

Which of the following technique isused for fragment? A. a technique used inbest-effort delivery systems toavoid endlessly loopingpackets B. a technique used by protocols in which a lower level protocol accepts a message from ahigher level protocol and places it in the data portion of the low level frame C. one of the pieces that results when an IP gateway divides an IP datagram into smallerpieces for transmission acrossa network that cannothandle the originaldatagram size D. All of theabove E. None of the above

Description : Which of the following technique isused for fragment? A. a technique used inbest-effort delivery systems toavoid endlessly loopingpackets B. a technique used by protocols in which a lower level protocol ... network that cannothandle the originaldatagram size D. All of theabove E. None of the above

Last Answer : one of the pieces that results when an IP gateway divides an IP datagram into smallerpieces for transmission acrossa network that cannothandle the originaldatagram size

Which protocols adopted the standards of HDLC (High Level Link Control) protocol? a. X.25 protocol as LAPB (Link Access Procedure Balanced, V.42 protocol as LAPM (Link Access Procedure for Modems) b. Frame Relay protocol as LAPF (Link Access Procedure for Frame Relay) c. ISDN (Integrated Services Digital Network) protocol as LAPD (Link Access Procedure on D channel) d. All the above

Description : Which protocols adopted the standards of HDLC (High Level Link Control) protocol? a. X.25 protocol as LAPB (Link Access Procedure Balanced, V.42 protocol as LAPM (Link Access Procedure for ... Services Digital Network) protocol as LAPD (Link Access Procedure on D channel) d. All the above

Last Answer : d. All the above

Choose the Protocols working in the Data Link Control Layer of OSI model below. a. ATM (Asynchronous Transfer Mode), Frame Relay b. HDLC (High Level Data Link Control), SDLC (Synchronous Data Link Control)c. ARP (Address Resolution Protocol), IEEE802.3 d. All the above

Description : Choose the Protocols working in the Data Link Control Layer of OSI model below. a. ATM (Asynchronous Transfer Mode), Frame Relay b. HDLC (High Level Data Link Control), SDLC (Synchronous Data Link Control) c. ARP (Address Resolution Protocol), IEEE802.3 d. All the above

Last Answer : d. All the above

Which type of Sframe in HDLC exhibit the correspondence of last three bits [N(R)] by defining the negative acknowledgement (NAK) number with the code value of '01'? a. Receive ready b. Receive not ready c. Reject d. Selective Reject

Description : Which type of Sframe in HDLC exhibit the correspondence of last three bits [N(R)] by defining the negative acknowledgement (NAK) number with the code value of '01'? a. Receive ready b. Receive not ready c. Reject d. Selective Reject

Last Answer : c. Reject

Which provision can resolve / overcome the shortcomings associated with duplication or failure condition of Stop and Wait Automatic Repeat Request protocol especially due to loss of data frames or non reception of acknowledgement? a. Provision of sequence number in the header of message b. Provision of checksum computation c. Both a & b d. None of the above

Description : Which provision can resolve / overcome the shortcomings associated with duplication or failure condition of Stop and Wait Automatic Repeat Request protocol especially due to loss of data frames or non reception ... message b. Provision of checksum computation c. Both a & b d. None of the above

Last Answer : Provision of sequence number in the header of message

In one of the pairs of protocols given below, both the protocols can use multiple TCP connections between thesame client and the server. Which one is that? a. HTTP, FTP b. HTTP, TELNET c. FTP, SMTP d. HTTP, SMTP

Description : In one of the pairs of protocols given below, both the protocols can use multiple TCP connections between the same client and the server. Which one is that? a. HTTP, FTP b. HTTP, TELNET c. FTP, SMTP d. HTTP, SMTP

Last Answer : a. HTTP, FTP

Which among the below mentioned protocols provides a mechanism of acquiring an IP address without manual intervention in addition to plug and play type of networking? a. BOOTP b. DHCP c. Both a & b d. None of the above

Description : Which among the below mentioned protocols provides a mechanism of acquiring an IP address without manual intervention in addition to plug and play type of networking? a. BOOTP b. DHCP c. Both a & b d. None of the above

Last Answer : b. DHCP

A ……………………….. is built from the information exchanged by routing protocols. A. static routing table B. dynamic routing table C. both a and bD. neither a nor b

Description : A ……………………….. is built from the information exchanged by routing protocols. A. static routing table B. dynamic routing table C. both a and b D. neither a nor b

Last Answer : B. dynamic routing table

State weather the following statement is true or false for Sendmail. 1).Sendmail is a command-line tool designed for most UNIX-like operating systems. 2).It define a method of transferring mail, and acts as a client/server that supports multiple mail protocols 3). Sendmail exists in both open source and proprietary software packages. A. 1. True, 2. False, 3. true B. 1. true, 2. false, 3. false C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false

Description : State weather the following statement is true or false for Sendmail. 1).Sendmail is a command-line tool designed for most UNIX-like operating systems. 2).It define a method of transferring mail, and acts as a client/server ... . false C. 1. false, 2. false, 3. false D. 1. true, 2. true, 3. false

Last Answer : A. 1. True, 2. False, 3. true

Station A uses 32 byte packets to transmit messages to Station B using a sliding window protocol. The round trip delay between A and B is 80 milliseconds and the bottleneck bandwidth on the path between A and B is 128 kbps. What is the optimal window size that A should use? a. 20 b. 40 c. 160 d. 320

Description : Station A uses 32 byte packets to transmit messages to Station B using a sliding window protocol. The round trip delay between A and B is 80 milliseconds and the bottleneck bandwidth on the path between A and B ... What is the optimal window size that A should use? a. 20 b. 40 c. 160 d. 320

Last Answer : b. 40

The TCP sliding window a. can be used to control the flow of information b. always occurs when the field value is 0 c. always occurs when the field value is 1 d. occurs horizontally

Description : The TCP sliding window a. can be used to control the flow of information b. always occurs when the field value is 0 c. always occurs when the field value is 1 d. occurs horizontally

Last Answer : a. can be used to control the flow of information

The maximum size of the window in a Sliding Window Protocol is _______ A. 2m – 1 B. 2m + 1 C. 2m D. 2m-1

Description : The maximum size of the window in a Sliding Window Protocol is _______ A. 2m – 1 B. 2m + 1 C. 2m D. 2m-1

Last Answer : A. 2m – 1

ARQ stands for _______. A) Automatic repeatquantization B) Automatic repeat request C) Automatic retransmissionrequest D) Acknowledge repeat request

Description : ARQ stands for _______. A) Automatic repeatquantization B) Automatic repeat request C) Automatic retransmissionrequest D) Acknowledge repeat request

Last Answer : Automatic repeat request

_________control inthe datalink layer is based on automatic repeat request, which is the retransmission of data. A) Flow B) Error C) Transmission D) none of the above

Description : _________control inthe datalink layer is based on automatic repeat request, which is the retransmission of data. A) Flow B) Error C) Transmission D) none of the above

Last Answer : Transmission

ARQ stands for __________ a. Automatic Repeat Request b. Automatic Request Repeat c. Application Repeat Request d. Application Request Repeat

Description : ARQ stands for __________ a. Automatic Repeat Request b. Automatic Request Repeat c. Application Repeat Request d. Application Request Repeat

Last Answer : a. Automatic Repeat Request

CRC stands for __________ a. cyclic redundancy check b. code repeat check c. code redundancy check d. cyclic repeat check

Description : CRC stands for __________ a. cyclic redundancy check b. code repeat check c. code redundancy check d. cyclic repeat check

Last Answer : a. cyclic redundancy check

Automatic repeat request error management mechanism is provided by ________ a. logical link control sublayer b. media access control sublayerc. network interface control sublayer d. application access control sublayer

Description : Automatic repeat request error management mechanism is provided by ________ a. logical link control sublayer b. media access control sublayer c. network interface control sublayer d. application access control sublayer

Last Answer : a. logical link control sublayer

Which is the protocol that maps varying IP addresses to the Physical MAC Address of a machine in a LAN network? a. ARQ (Automatic Repeat Request) b. ARP (Address Resolution Protocol) c. SLIP (Serial Line Internet Protocol) d. PLIP (Parallel Line Internet Protocol)

Description : Which is the protocol that maps varying IP addresses to the Physical MAC Address of a machine in a LAN network? a. ARQ (Automatic Repeat Request) b. ARP (Address Resolution Protocol) c. SLIP (Serial Line Internet Protocol) d. PLIP (Parallel Line Internet Protocol)

Last Answer : b. ARP (Address Resolution Protocol)

Which is the protocol that maps varying IP addresses to the Physical MAC Address of a machine in a LAN network? A. ARQ Automatic Repeat Request B. ARP Address Resolution Protocol C. SLIP Serial Line Internet Protocol D. PLIP Parallel Line Internet Protocol

Description : Which is the protocol that maps varying IP addresses to the Physical MAC Address of a machine in a LAN network? A. ARQ Automatic Repeat Request B. ARP Address Resolution Protocol C. SLIP Serial Line Internet Protocol D. PLIP Parallel Line Internet Protocol

Last Answer : B. ARP Address Resolution Protocol

CRC stands for __________ A. cyclic redundancy check B. code repeat check C. code redundancy check D. cyclic repeat check

Description : CRC stands for __________ A. cyclic redundancy check B. code repeat check C. code redundancy check D. cyclic repeat check

Last Answer : A. cyclic redundancy check

Automatic repeat request error management mechanism is provided by ________ A. logical link control sublayer B. media access control sublayer C. network interface control sublayer D. application access control sublayer

Description : Automatic repeat request error management mechanism is provided by ________ A. logical link control sublayer B. media access control sublayer C. network interface control sublayer D. application access control sublayer

Last Answer : A. logical link control sublayer

The purpose of the _______is to provide flow and error control for the upper-layer protocols that actually demand theseservices A) MAC B) LLC C) LLU D) none of the above

Description : The purpose of the _______is to provide flow and error control for the upper-layer protocols that actually demand theseservices A) MAC B) LLC C) LLU D) none of the above

Last Answer : LLC

In IPv6,a _______address is usedif aLAN uses the Internet protocols but isnot connected tothe Internet for security reasons. A) link local B) site local C) mapped D) none of the above

Description : In IPv6,a _______address is usedif aLAN uses the Internet protocols but isnot connected tothe Internet for security reasons. A) link local B) site local C) mapped D) none of the above

Last Answer : link local

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

What device separates asingle network into two segmentsbut lets the twosegments appear as one tohigher protocols? A. Switch B. Bridge C. Gateway D. Router

Description : What device separates asingle network into two segmentsbut lets the twosegments appear as one tohigher protocols? A. Switch B. Bridge C. Gateway D. Router

Last Answer : Bridge

Which of the following is used for modulation and demodulation? A. modem B. protocols C. gatewayD.multiplexerE.None of the above

Description : Which of the following is used for modulation and demodulation? A. modem B. protocols C. gateway D. multiplexer E. None of the above

Last Answer : modem

The standard suit of protocols used by the Internet, Intranets, extranets and some other networks. A) TCP/IP B) Protocol C) Open system D) Internet work processor

Description : The standard suit of protocols used by the Internet, Intranets, extranets and some other networks. A) TCP/IP B) Protocol C) Open system D) Internet work processor

Last Answer : A) TCP/IP

Which of the following of the TCP/IP protocols is the used for transferring files from one machine to another? A) FTP B) C) SNMP C) SMTP D) D) Rpe

Description : Which of the following of the TCP/IP protocols is the used for transferring files from one machine to another? A) FTP B) C) SNMP C) SMTP D) D) Rpe

Last Answer : A) FTP

Which of the transport layer protocols is connectionless? A) UDP B) TCP C) FTP D) Nvt

Description : Which of the transport layer protocols is connectionless? A) UDP B) TCP C) FTP D) Nvt

Last Answer : A) UDP

Which of the following TCP/IP protocols is used for transferring files form one machine to another. A) FTP B) SNMP C) SMTP D) RPC

Description : Which of the following TCP/IP protocols is used for transferring files form one machine to another. A) FTP B) SNMP C) SMTP D) RPC

Last Answer : A) FTP

Which of the following protocols is an application layer protocol that establishes, manages and terminates multimedia sessions ? a. Session Maintenance Protocol b. Real - time Streaming Protocol c. Real - time Transport Control Protocol d. Session Initiation Protocol

Description : Which of the following protocols is an application layer protocol that establishes, manages and terminates multimedia sessions ? a. Session Maintenance Protocol b. Real - time Streaming Protocol c. Real - time Transport Control Protocol d. Session Initiation Protocol

Last Answer : d. Session Initiation Protocol

Which of the following protocols is used by email server to maintain a central repository that can be accessed from any machine ? a. POP3 b. IMAP c. SMTP d. DMSP

Description : Which of the following protocols is used by email server to maintain a central repository that can be accessed from any machine ? a. POP3 b. IMAP c. SMTP d. DMSP

Last Answer : b. IMAP

Which of the following is/are example(s) of stateful application layer protocols? (i) HTTP (ii) FTP (iii) TCP (iv) POP3 a. (i) and (ii) only b. (ii) and (iii) only c. (ii) and (iv) only d. (iv) only

Description : Which of the following is/are example(s) of stateful application layer protocols? (i) HTTP (ii) FTP (iii) TCP (iv) POP3 a. (i) and (ii) only b. (ii) and (iii) only c. (ii) and (iv) only d. (iv) only

Last Answer : c. (ii) and (iv) only

TELNET, FTP, SMTP, Protocols fall in the following layer of OSI reference model? a. Transport layer b. Internet layer c. Network layer d. Application layer

Description : TELNET, FTP, SMTP, Protocols fall in the following layer of OSI reference model? a. Transport layer b. Internet layer c. Network layer d. Application layer

Last Answer : d. Application layer