ARQ in Data Link Layer

Play an AI-generated podcast conversation about this lesson

HDLC frame structure uses ______ transmission of frames.

synchronous

In HDLC, ______ Fields are used to delimit a frame at both ends.

Flag

In HDLC, ______ stuffing is used to avoid confusion with data containing the flag sequence.

Bit

In HDLC, the ______ Field identifies the secondary station that sent or will receive a frame.

Address Signup and view all the answers

HDLC Operation consists of exchange of information, supervisory and unnumbered frames have three phases : initialization by either side, set mode & seq ______ transfer with flow and error control using both I & S-frames.

data Signup and view all the answers

In HDLC, flow and error control are piggybacked on ______ frames.

Information Signup and view all the answers

Frame Check Sequence Field (FCS) is used for ______ detection.

error Signup and view all the answers

In HDLC's Normal Response Mode, the primary station ______ the transfer.

initiates Signup and view all the answers

In HDLC, ______ frames are used to solicit response from peer.

command Signup and view all the answers

In HDLC, the ______ bit is set to 1 to indicate response to soliciting command.

F Signup and view all the answers

HDLC protocols are used for ______ control and error control.

flow Signup and view all the answers

HDLC introduced the need for ______ link protocols to handle flow control and error control.

data Signup and view all the answers

Data Link Control Protocols need a layer of logic above ______ to manage exchange of data over a link.

Physical Signup and view all the answers

Flow Control ensures the ______ entity does not overwhelm the receiving entity.

sending Signup and view all the answers

In Stop and Wait protocol, the source waits for ______ before sending the next frame.

ACK Signup and view all the answers

Sliding Windows Flow Control allows multiple ______ frames to be in transit.

numbered Signup and view all the answers

If the receiver's buffer is full, it can stop the flow by not sending ______.

ACK Signup and view all the answers

The transmission time and propagation time influence ______ control.

Flow Signup and view all the answers

When the receiver gets a damaged frame i, it rejects frame i and the transmitter ______ frames from i.

retransmits Signup and view all the answers

If the transmitter times out, it sends ack with ______ bit set.

P Signup and view all the answers

In Go Back N protocol, the whole sequence of frames is ______ from the damaged frame.

retransmitted Signup and view all the answers

Selective Reject protocol only ______ rejected frames are retransmitted.

retransmits Signup and view all the answers

Receiver can ACK frames without permitting further transmission by sending a ______ Not Ready.

Receive Signup and view all the answers

If the transmitter has a timeout, it will ______ the frame if no ACK is received within the timeout.

retransmit Signup and view all the answers

In HDLC protocol, ______ stations control the operation of the link.

Primary Signup and view all the answers

Automatic Repeat Request (ARQ) is a collective name for error control mechanisms, including ______ and Wait and Go Back N.

Stop Signup and view all the answers

The receiver must maintain a large enough buffer in Selective Reject protocol to ______ retransmission.

minimize Signup and view all the answers

In the Sliding Window protocol, the sequence number is bounded by the size of the field (______).

k Signup and view all the answers

The receiver gets two copies of the frame and uses ______ numbering and ACK0/ACK1 to resolve the issue.

alternate Signup and view all the answers

If the ACK is damaged, the transmitter will not recognize it and will ______ the frame.