Network+ 2005 In Depth (P11) doc

... LANs and WANs and describes in detail WAN transmission media and methods. It also notes the potential pitfalls in establish- ing and maintaining WANs. In addition, it introduces you to remote connectivity ... are invalid. After waiting, the NIC determines if the line is again available; if it is avail- able, the NIC retransmits its data. daisy chain—A group of connectivity devices linke...

Ngày tải lên: 07/07/2014, 09:20

... Token Ring network by connecting multiple MAUs through their Ring In and Ring Out ports, as shown in Figure 6-14. Unused ports on a MAU, including Ring In and Ring Out ports, have self-shorting ... switching: circuit switching, message switching, and packet switching. Circuit Switching In circuit switching, a connection is established between two network nodes before they begin transm...

Ngày tải lên: 07/07/2014, 09:20

... PVC. plain old telephone service (POTS)—See PSTN. Point-to-Point Protocol—See PPP. Point-to-Point Protocol over Ethernet—See PPPoE. Point-to-Point Tunneling Protocol—See PPTP. POTS—See PSTN. PPP (Point-to-Point ... WAN in which sites that are connected in star or ring for- mations are interconnected at different levels, with the interconnection points being organized into layers to form h...

Ngày tải lên: 07/07/2014, 09:20

... an intermediary between the external and internal networks, screening all incoming and outgoing traffic and providing one address to the outside world, instead of revealing the addresses of internal ... tactic involving modems.) War dri- ving is surprisingly effective for obtaining private information. Recently, the hacker commu- nity publicized the vulnerabilities of a well-known store chain...

Ngày tải lên: 07/07/2014, 09:20

... Shortly after a new wing, which contains X-ray and magnetic resonance imaging (MRI) machines, is added to the building, computers in that area begin having intermittent problems saving data to the ... configurations, and load. ◆ Network management involves assessing, monitoring, and maintaining network devices and connections. ◆ Baselining includes keeping a history of network performance,...

Ngày tải lên: 07/07/2014, 09:20

... to reach their destination? a. circuit switching b. layer 2 switching c. packet switching d. message switching e. layer 3 switching 40. Which of the following wireless networking technologies can ... the Internet connection, you install a firewall between the main office and the Internet. Shortly thereafter, users in your satellite office com- plain that they cannot access the file server...

Ngày tải lên: 07/07/2014, 09:20

... www.courseptr.com. Security+ In Depth ISBN: 1-59200-064-9 ■ $39.99 Network+ 2005 Q&A ISBN: 1-59200-794-5 ■ $19.99 Linux+ 2005 In Depth ISBN: 1-59200-728-7 ■ $39.99 Network+ 2005 In Depth ISBN: 1-59200-792-9 ... 408 line conditioning, 579 line-of-sight (LOS), 111, 127 line-of-sight (uLOS), 81 line printer daemon. See lpd line printer daemon (lpd), 445 link segment...

Ngày tải lên: 07/07/2014, 09:20

... remain one of the fastest growing indus- tries in the U.S. economy, despite recent job losses. In any industry, the workforce is important to continually drive business. Having skilled workers in ... in the networking industry, including those that oversee wiring codes, net- work access methods, and Internet addressing. It also discusses, in depth, the OSI Model, which is the indus...

Ngày tải lên: 07/07/2014, 09:20

... learn by doing. Many colleges offer courses or continuing education on networking topics. You may also want to enroll at a computer training center. These train- ing centers can be found in every ... area and in many small towns. If you are pur- suing certification, be certain the training center you choose is authorized to provide training for that certification. Most computer training c...

Ngày tải lên: 07/07/2014, 09:20

... You will use this information when installing network operating systems, configuring servers and client workstations, installing NICs, troubleshooting network problems, and purchasing net- work equipment. IEEE ... Engineers)—An international society com- posed of engineering professionals. Its goals are to promote development and education in the electrical engineering and computer science...

Ngày tải lên: 07/07/2014, 09:20