What is the function of the CRC value that is found in the FCS field of a frame? Explanation: The CRC value in the FCS field of the received frame is compared to the computed CRC value of that frame, in order to verify the integrity of the frame. If the two values do not match, then the frame is discarded.
What is the function of the CRC value in the FCS field of a frame?
The frame check sequence (FCS) field contains a 4-octet (32-bit) cyclic redundancy check (CRC) value. This value is computed as a function of the contents of the source address, destination address, length/type, LLC data and pad (that is, all fields except the preamble, SFD, FCS, and extension).
What is the function of the CRC value that is found in the FCS field of a frame to verify the physical address in the frame?
Answers Explanation & Hints: The FCS field in a frame is used to detect any errors in the transmission and receipt of a frame. This is done by comparing the CRC value within the frame against a computed CRC value of the frame. If the two values do not match, then the frame is discarded.
What is the function of the FCS field of a frame?
A frame check sequence (FCS) is an error-detecting code added to a frame in a communication protocol. Frames are used to send payload data from a source to a destination.
Which switching method uses the CRC value in a frame?
Explanation:When the store-and-forward switching method is used, the switch receives the complete frame before forwarding it on to the destination. The cyclic redundancy check (CRC) part of the trailer is used to determine if the frame has been modified during transit.
What action will occur if a switch receives a frame?
The switch refreshes the timer on that entry. The switch shares the MAC address table entry with any connected switches. The switch does not forward the frame. The switch adds it to its MAC address table associated with the port number.
What are two methods for switching data between ports on a switch choose two?
There are 2 methods that all switch use for forwarding the frames (switching data) between the network ports:
- Store and forward switching.
- Cut-through switching.
What is the difference between CRC and FCS?
Frame Check Sequence (FCS) Errors, a type of CRC, indicate that frames received by an interface are an integral number of octets long but do not pass the FCS check. The FCS is a mathematical way to ensure that all the frame’s bits are correct without having the system examine each bit and compare it to the original.
What is FCS in Ethernet frame?
The frame check sequence (FCS) is a four-octet cyclic redundancy check (CRC) that allows detection of corrupted data within the entire frame as received on the receiver side.
What is the use of FCS?
FCS is a technique basically used for spatial and temporal analysis of molecular interactions of extremely low-concentration biomolecules in solution.
Which frame forwarding method receives the entire frame and performs a CRC check?
Switches use one of the following forwarding methods for switching data between network ports: Store-and-forward switching: With this frame forwarding method, the switch receives the entire frame and computes the CRC.
Which switching method uses the cyclic redundancy check CRC value in a frame?
Explanation: The store-and-forward switching method always checks for cyclic redundancy check (CRC) errors before forwarding the frame, thereby ensuring reliability. When the store-and-forward switching method is used, the switch receives the entire frame before forwarding the frame.
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