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Q&A 327
65
Name the two commands typically used to create a default gateway for a router.
66
Assume that subnets of network 10.0.0.0 are in the IP routing table in a router but that no
other network and their subnets are known, except that there is also a default route
(0.0.0.0) in the routing table. A packet destined for 192.1.1.1 arrives at the router. What
configuration command determines whether the default route will be used in this case?
67
Assume that subnets of network 10.0.0.0 are in the IP routing table in a router but that
no other network and their subnets are known, except that there is also a default route
(0.0.0.0) in the routing table. A packet destined for 10.1.1.1 arrives at the router, but
there is no known subnet of network 10 that matches this destination address. What
configuration command determines whether the default route will be used in this case?
68
What does the acronym CIDR stand for? What is the original purpose of CIDR?
69
Define the term private addressing as defined in RFC 1918.
70
Define the acronym NAT, and define the basics of its operation.
71
Which requires more lines of source code, FTP or TFTP? Justify your answer.
72
Does FTP or TFTP perform error recovery? If so, describe the basics of how they perform
error recovery.
73
Describe the process used by IP routers to perform fragmentation and reassembly of
packets.
74
How many TCP segments are exchanged to establish a TCP connection? How many are
required to terminate a TCP connection?
75
How many Class B-style networks are reserved by RFC 1918 private addressing?
ch05.fm Page 327 Monday, March 20, 2000 5:06 PM