p. 141, missing content. Access involves two different issues: stopping unauthorized people from accessing the telecommunications room and enabling authorized people to get in for maintenance and troubleshooting.
p. 199, last paragraph, fourth sentence, should read 22=4.
p. 200, first line should read as follows: Figure 7-34 shows the first four available host IDs for each of the four new network IDs.
p. 245, second paragraph, second sentence, protocol should be singular: dynamic routing protocol.
p. 262, second paragraph, last sentence should read summary, not summery.
p. 302, question explanation 8: Current passive FTP only uses port 21, not port 20.
p. 441, question 1, answer A should read: 2001:bead:beef::1
p. 517, first paragraph, fourth sentence should read thick clients, not think clients.
p. 537, Exam Tip: throughput speeds should be Mbps, not Gbps.
p. 570, third sentence under “Platform as a Service” should read just a programmer, not a just programmer.
p. 600, question 6, answer D should be ISDN, not H.323.
p. 605, first paragraph, first and fifth sentences should read policies, not polices.