CompTIA Network+ Practice Test

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What characterizes a giant frame in Ethernet networking?

Frames that are standard size
Frames that contain errors
Frames that exceed 1518 bytes
Frames that are exactly 1500 bytes

The correct answer is: Frames that exceed 1518 bytes

A giant frame in Ethernet networking is characterized by frames that exceed 1518 bytes. In standard Ethernet (IEEE 802.3), the maximum frame size is 1518 bytes, which includes the Ethernet header, frame payload, and the frame check sequence (FCS). When a frame exceeds this size, it is classified as a giant frame. This characteristic can lead to issues in a network as these oversized frames can be dropped by devices that enforce the maximum Ethernet frame size, resulting in inefficiencies and network errors. In contrast, standard size frames adhere to the defined maximum and minimum frame sizes, frames with errors do not specifically pertain to size but rather to data integrity, and frames that are exactly 1500 bytes are still within the acceptable limits and do not qualify as giant frames. Therefore, recognizing that giant frames exceed the defined size threshold is vital for network management and troubleshooting.