network layers datagrams

Question 1

1) 32 bit block of datagram

Answer 1

1. version of ip (4 bit)
2. header length declares how long is the header (4bit)
3. service type (8 bits) shows quality of service
4. total length (16 bits)

Question 2

2)32 bit block of datagram

Answer 2

1. identification (16 bits) used to group messages together
2. flag field (3 bits) shows if datagram is allowed to be fragmented or is fragmented
3. fragment offset (13 bits)

Question 3

3)32 bit block of datagram

Answer 3

1. ttl (8 bits) indicates how many hops a datagram can traverse before its thrown away
2. protocol(8 bits) contains data about transport layer protocol
3. header checksum field

Question 4

4)32 bit block of datagram

Answer 4

source address(32 bits)

Question 5

5)32 bit block of datagram

Answer 5

destination address(32 bits)

Question 6

6)32 bit block of datagram

Answer 6

1. options field(19 bits) is used to set special characteristics for datagrams used for testing purposes
2. padding field is series of zeros that show that header is correct total size