By Robert Padjen
Cisco dominates the internetworking scene with an over eighty percentage percentage of the routers used on the net. The mid-level Cisco qualified community expert (CCNP) certification validates complicated wisdom of Cisco-based networks. The distant entry examination (640-605) is without doubt one of the 4 middle assessments that disguise a variety of subject matters, together with fitting, configuring, and working LAN, WAN, and dial-up entry prone for firms with mid-to-large sized networks. Cisco lately "refreshed" the 4 CCNP tests, including new questions and query codecs to the pool. The examination ambitions haven't replaced.
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Extra info for CCNP Remote Access Study Guide, Exam 640-605
Cable modems operate over the same cabling system that provides cable television service; in other words, they use the same coax cable that is already used in the homes with cable television. Most cable installations will provide two cables, one for the television and one for the data converter, but the signaling and the system is the same. This is accomplished by allocating a television channel to data services. Bandwidth varies with each installation; however, 2Mbps in each direction is not uncommon.
A. While packet mode includes PPP, among others, these connec- tions generally pass through the router. PPP is not required. See Chapter 10 for more information on packet mode connections. 39. A. Frame Relay is perfect for companies with many remote sites that have burst data transfers. See Chapter 7 for more information on Frame Relay. 40. A. The command is queue-list [#] interface [interface] [queue number]. See Chapter 8 for more information on queuing. 41. B. An extended translation entry into the NAT table indicates an entry with an IP address and port pair.
High bit-rate DSL (HDSL) HDSL is similar to SDSL, but it uses double and triple pairs of copper wire. Most other DSL technologies operate over a single pair, which can simplify installation compared to HDSL. HDSL typically provides distances reaching 15,000 feet. ISDN-based DSL (IDSL) ISDN-based DSL typically allows the greatest distances, but it is limited to 144Kbps. Symmetric DSL (SDSL) Symmetric DSL provides 2Mbps bidirectional bandwidth over a single pair of copper wires. Distances are typically limited to 10,000 feet.