Ntc 360 Network and Telecommunications Concepts Essay

2386 Words Oct 13th, 2011 10 Pages
NETWORKING

Networking
Paul F. Scheelk
NTC/360
Network and Telecommunications Concepts
Instructor: Anthony Bruno
University of Phoenix

1. What is the range of usable IP addresses for the following IP subnet? What is the broadcast address for the subnet?
10.150.100.96/27
The range of usable IP addresses is 10.150.100.97 – 10.150.100.126. The first and last addresses are not usable and cannot be assigned to hosts as one is used as the broadcast address, 10.150.100.127 and 10.150.100.96 is the address for the sub network. When initially determining the usable addresses the /27 provides the information that the first 27 bits are network and the remaining 5 are host addresses. The subnet address would be 255.255.255.224.
2.
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Nine of the servers are utilizing technology call anycast that allows them to operate in multiple geographical locations. This technology increases performance and provides more fault tolerance. The assigned names are A through M, originally they had names like ns.internic.net, (A) but with the implementation of Anycast the names were changed for ease of recognition. Each system has been assigned both a IPv4 address and an IPv6 address. Listed are the names, IP addresses, Operator, Location (if available) and software used.
Name/Letter IPv4 address IPv6 address Operator Location Software

A 198.41.0.4
2001:503:ba3e::2:30
VeriSign Distributed using anycast BIND

B 192.228.79.201
2001:478:65::53
USC-ISI Marina Del Ray, Cal. U.S.A.
BIND

C 192.33.4.12
None Assigned
Cogent Communications Distributed using anycast BIND

D 128.8.10.90
None Assigned
University of Maryland College Park Maryland
U.S.A.
BIND

E 192.203.230.10
None Assigned
NASA Mountain View, Cal.
U.S.A.
BIND

F
192.5.5.241
2001:500:2f::f Internet Systems Consortium Distributed using anycast BIND9

G 192.112.36.4
None Assigned Defense Information Systems Agency Distributed using anycast BIND

H 128.63.2.53
2001:500:1::803f:235
U.S. Army

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