Question 13 (1 point) Which of the followiing is NOT a service provided by PPP?

Question

Question 13 (1 point) Which of the followiing is NOT a service provided by PPP? 1) Authentication 2) Accepts payloads from several network layers (including IP) 3) Negotiate the establishment of a link between two devices 4) Flow control Save Question 14 (1 point) is the process of added a special byte to the data section of the frame when there is a character with the same pattern as the flag. 1) bit stuffing 2) esc stuffing 3) byte stuffing 4) frame stuffing Save Question 15 (1 point) A PPP frame include a FCS which is a . 1) CRC 2) CDC 3) CEC 4) Flag Save Question 16 (1 point) The field in a LCP packet holds a value that matches a request with a reply 1) ID 2) control 3) flag 4) FCS

Explanation / Answer

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As per the requirement submitted above , kindly find the below solution.

Question 13 :

Answer : 4) Flow control

Explannation : Point to Point Protocol (PPP) does not provide flow control , in PPP a sender can send multiple frames one after another but there is no mechanism to find out overwhelming of the receiver.The services provided or defined by PPP includes format of the frames exchanged between devices , can also defines authentication between devices.

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Question 14 :

Answer : 3) byte stuffing

Explannation : The byte stuffing or character stuffing in which a special byte is added to the data section of the frame when there is a character with the same pattern as flag. In byte stuffing the data section is stuffed with an extra byte and this extra byte is called as escape character (ESC) and this ESC is having predefined bit pattern.

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Question 15:

Answer : 1) CRC

Explannation : In PPP the frame check sequence (FCS) or checksum is simply a 2-byte or 4-byte standard CRC(Cyclic Redundancy Code). FCS field is used to detect bit errors in a transmitted frame.

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Question 16 :

Answer : 1) ID

Explannation : Link Control Protocol (LCP) is responsible for establishing, configuring ,terminating and maintaining the link. Also LCP provides negotiation mechanism to set options between two endpoints.LCP packet contains various fields which includes Code , ID , Length and Information.ID is one byte in a LCP packet which holds a value that matches a request with reply.

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