A CRC generator polynomial contains the factor (x + 1). What class of errors does this guarantee the CRC detects?
A generator divisible by x+1 detects every error pattern containing an odd number of erroneous bits.
Which statement about burst-error detection by a CRC is correct?
A CRC generator of degree r guarantees detection of all burst errors of length <= r.
In an Ethernet frame, which field is used to identify the receiving network interface at Layer 2?
The destination MAC address identifies the intended Layer-2 recipient.
Which Ethernet field indicates either the upper-layer protocol type or the payload length, depending on the Ethernet framing convention?
The 2-byte field is interpreted as Length in IEEE 802.3 framing or EtherType in Ethernet II.
What is the purpose of the Ethernet Frame Check Sequence (FCS)?
The FCS contains a CRC value used to detect transmission errors.