Unit 3 Flashcards
1
Q
start
A
missed
2
Q
protocol field:
A
SCTP, UDP, IGMP =2, ICMP = 1, OSPF, TCP
3
Q
IPv4 datagram format:
A
Header 20-60 bytes:data 20-65536 bytes
Header:
time to live 8bits : Protocol filed 8 bits: header checksum 16 bits
figure 1 unit 3 CNS network layer
4
Q
Shotcomes of IPv4
A
address depletion is still long term problem..
- no encryption provided..
- missed
5
Q
IPv6 or ng (next generation)
A
- written in hexadecimal.
32 hex digits
16 bytes
128 bits
8 section, each section 2byte and 4 hex digits.
separator is :
FDEC:BA98:0074:3210:000F:BBFF:0000:FFFF
6
Q
abbreviation of IPv6:
A
leading zeroes can be dropped.
0074 = 74
3210 = 3210
FDEC:0:0:0:0:BBFF:0:FFFF = FDEC::BBFF:0:FFFF
7
Q
CIDR address:
A
idk
8
Q
Address space
A
idk
9
Q
anycast address
A
idk..
10
Q
reserved addresses
A
start w eight 0s
unspecified
..idk
