TCP/IP Protocol Suite Chapter 7
For the timestamp option, a flag value of______means that each visited router adds only the timestamp in the provided field.
- 0
To find the physical address of the exiting - point router, ATM uses the services of ______
- ATMARP
The ______ protocol is the transmission mechanism used by the TCP/IP suite.
- IP
______ allows an ATM network to be divided into several logical subnets
- LIS
When a datagram is encapsulated in a frame, the total size of the datagram must be less than the _____
- MTU
The inverse request and inverse reply messages can bind the physical address to an IP address in a(n) ______ situation
- PVC
The request and reply message can be used to bind a physical address toan IP address in a(n) ____ situation
- SVC
The term _____ means that IP provides no error checking or tracking. IP assumes the unreliability of the underlying layers and does its best to get a transmission through to its destination, but with no guarantees .
- best effort delivery
What is needed to determine the number of the last byte of a fragment?
- both offset number and the total length
IP is _____ datagram protocol.
- both unreliable and connectionless
The value of the _____ subfield defines the general purpose of an option
- class
The value of the _____ subfield in an option controls the presence of the option in fragmentation.
- copy
Packets in the IP layer are called_____
- datagrams
The IP header field formerly known as the service type field is now called the ____ field.
- differentiated services
The ____ module sends out an IP packet, the next hop address and interface information
- forwarding
The ____ module consults the MTU table to determine the packet size necessary for transmission
- fragmentation
The total length field defines the total length of the datagram
- including the header
The IP header size ______
- is 20 to 60 bytes long
When we use IP over ATM, only the ______ cell carry(ies) the 8-byte trailer added to the IP datagram
- last
A best-effort delivery service such as IP includes_____
- none of the choices
The value of the ____ subfield defines the types of an option
- number
Only _____ end of option option can be used in a datagram
- one
The _____ module discards datagrams with a TTL value of zero
- processing
The _____ module takes fragments of a message and puts them back in order
- reassembly
The output of the _____ module is an IP packet destined for an upper-layer protocol
- reassembly
Which IP option is used if exactly four specific routers are to be visited by the datagram>
- strict source rout
If the fragment offset has a value of 100, it means that ______
- the first byte of the datagram is byte 800
An HLEN value of decimal 10 means
- there are 40 bytes in the header
When we use IP over ATM, padding can be added only to the _____ or the _____
-last cell; last two cells
