C. Flow control D. Congestion control
4.13 If all datagrams arriving at the router from WAN have the same destination IP
address, then how does the router know the internal host to which it should
forward a given datagram? The trick is to use ____D_____ table at router, and
include port numbers as well as IP address in the table entries.
A. routing B. forwarding
C. ARP D. NAT translation
4.14 The standard Tracert program actually sends sets of _____C____ packets with the same
TTL.
A. one B. two
C. three D. four
4.15 The internet’s network layer provides a single service----that is ____D__.
A. Reliable data transfer B. Flow control
C. Congestion control D. Best-effort-service
4.16 A VC consists of three part, this three parts do not include_____D____.
A. Path from source to destination
B. VC numbers, one number for each link along path
C. Entries in forwarding tables in routers along path
D. Destination address
4.17 In ____A_____ networking, a series of packet may follow different paths and may
arrive out of order?
A. Datagram B. VC
C. TCP D. None of above
4.18 There are three kinds of switch fabric for a router normally, those three
switch fabric do not includes____D_____?
A. Switching via memory