IPv4 Header Flashcards
The IPv4 header ‘Version’ field is _______ bits in length.
4 bits
A value of ______ in the IP header ‘Version’ field indicates IP version 4
4 (binary 0100)
A value of ______ in the IP header ‘Version’ field indicates IP version 6.
6 (binary 0110)
IPv4 header: What does ‘IHL’ stand for?
Internet Header Length
IPv4 header: The ‘IHL’ field is _____ bits in length.
4 bits
IPv4 Header: The IHL field specifies the length of the header in ______ increments.
4-Bytes (32 bits)
IPv4 header: What is the minimum value of the IHL field?
5
IPv4 header: What is the maximum value of the IHL field?
15
What is the maximum length of the IPv4 header?
60 Bytes
What is the minimum length of the IPv4 header?
20 Bytes
IPv4 header: What does ‘DSCP’ stand for?
Differentiated Services Code Point
IPv4 header: The ‘DSCP’ field is _____ bits in length.
6 bits
IPv4 header: Which field is used to prioritize delay-sensitive network traffic?
DSCP (Differentiated Services Code Point)
IPv4 header: What does ‘ECN’ stand for?
Explicit Congestion Notification
IPv4 header: The ‘ECN’ field is _____ bits in length.
2 bits
IPv4 header: Which field provides end-to-end notification of network congestion?
ECN (Explicit Congestion Notiification)
IPv4 header: The ‘Total Length’ field is ______ bits in length.
16 bits
IPv4 header: Which field indicates the total length of the packet?
Total Length
IPv4 header: What is the minimum value of the ‘Total Length’ field?
20 (=IPv4 header with no encapsulated data)
IPv4 header: What is the maximum value of the ‘Total Length’ field?
65,535
