Capa de enlace - Redes de Datos

What is the main function of data framing in the data link layer?

• Synchronize the transmission speed between the sender and the receiver.

• Mark the start and end of each data frame.

• Encode the data into binary for transmission.

• Detect and correct errors in data transmission.

What type of bit is used to indicate the start of a data frame in frame synchronization?

• Start bit.

• Parity bit.

• Error detection bit.

• Flow control bit.

What is the function of the stop bit in frame synchronization?

• Mark the start of the data frame.

• Indicate the end of the data frame.

• Detect transmission errors.

• Synchronize the transmission speed.

What is a flag bit in the context of frame synchronization?

• A bit that indicates the start or end of a data frame.

• A control bit used to manage data flow.

• A parity bit used to detect errors in transmission.

• A bit used to synchronize transmission speed.

What is the "bit stuffing" technique in frame synchronization?

• Inserting additional bits into the data frame to ensure error detection.

• Removing redundant bits from the data frame to save bandwidth.

• The process of marking the start and end of each data frame with flag bits.

• Converting data into binary format before transmission.

What happens if synchronization is lost between the sender and receiver in frame synchronization?

• Transmission errors occur that can be corrected using parity bits.

• The data frame is discarded and a new frame is awaited.

• Filler bits are inserted into the data frame to reset synchronization.

• Data flow is interrupted and manual reconfiguration is required.

What is the main advantage of frame synchronization over unformatted data transmission?

• Higher transmission speed.

• Increased transmission security.

• Error detection and correction.

• Lower network resource consumption.

What function does the parity check bit perform in frame synchronization?

• Detect and correct errors in the data frame.

• Synchronize transmission speed between sender and receiver.

• Indicate the start and end of the data frame.

• Mark the presence of data in the frame.

What is a "flag sequence" in the context of frame synchronization?

• A sequence of bits that indicates the start and end of a data frame.

• A sequence of bits used to encrypt sensitive data in the frame.

• A sequence of bits that is inserted into the frame to ensure error detection.

• A sequence of bits that specifies the type of network protocol used in the frame.

What is the main purpose of the link layer in the OSI model?

• Facilitate communication between applications.

• Encapsulate data for transmission.

• Provide logical addressing to network devices.

• Manage access to the physical transmission medium.