By Kent Hundley
By means of delivering the hot provider Routing Certification application, Alcatel-Lucent is extending their succeed in and information to networking pros with a complete demonstration of ways to construct clever, scalable networks. Serving as a "course in a book" from Alcatel-Lucent—the global chief in designing and constructing scalable systems—this source pinpoints the pitfalls to prevent whilst construction scalable networks, examines the main winning thoughts on hand for engineers who're construction and working IP networks, and gives overviews of the web, IP routing and the IP layer, and the perform of beginning the shortest direction first.
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Extra resources for Alcatel-Lucent Scalable IP Networks Self-Study Guide: Preparing for the Network Routing Specialist I (NRS 1) Certification Exam (4A0-100)
Wiley. com to take all of the evaluate exams and evaluation the solutions. 1. while a body with an unknown vacation spot MAC handle enters a change, the change will ahead it out which ports? A. None B. All C. All unicast ports D. All other than the port that got the body 2. the first distinction within the manner Ethernet hubs and Ethernet switches deal with site visitors is ______. A. Hubs ahead broadcast site visitors out each port, switches don't. B. Switches get rid of the necessity for thicknet cabling. C. Switches help a number of actual connections to hosts. D. Switches ahead unicast site visitors in simple terms to a selected vacation spot port. three. Which of the subsequent isn't actual approximately hyperlink Aggregation teams? A. They shield opposed to unmarried or a number of hyperlink disasters. B. they could include as much as 8 actual hyperlinks. 132 29068c04. indd 132 C h a p t e r four n S w i t c h e d N e t wor ok s , S pa nn i ng T r e e , a n d V L A Ns 9/15/11 1:56:12 AM C. they could guard opposed to a change failure by way of calculating a number of paths to the basis. D. they are often configured to go into a down nation if a undeniable variety of hyperlinks within the package fail. four. Which of the next isn't real of the STP protocol? A. It calculates a root bridge. B. It makes use of a value price on each one port to figure out the trail to the basis bridge. C. It guarantees a loop-free topology. D. It offers load-sharing potential. five. the benefit of utilizing VLANs is ______. A. they could raise the safety of your community. B. they could interconnect a number of broadcast domain names. C. they could restrict the volume of broadcast site visitors among teams of units. D. solutions A and C, yet now not B. you can find the solutions to every of those questions in Appendix A. 29068c04. indd 133 Pr e -A ssessment 133 6/3/09 7:34:55 PM 4. 1 Ethernet units: Hubs and Switches within the past bankruptcy, we in brief pointed out units that offer the actual Ethernet connections and forwarding of Ethernet frames. during this bankruptcy, we describe those units in even more element and pay relatively shut recognition to how those units functionality to move Ethernet frames around the community. the best Ethernet machine is just used to copy an Ethernet sign alongside a twine and is termed, safely sufficient, a repeater. Repeaters have been wanted within the days of thicknet cables simply because there have been strict limits at the size of a unmarried thicknet cable run. In glossy networks those units are hardly ever used or wanted and are pointed out the following just for historic reasons. Ethernet Hubs the subsequent gadget to think about is the easiest multi-connection gear: an Ethernet hub. bodily, a hub is a often a small machine that connects from 4 to 8 Ethernet units that allows you to speak with one another. The hub does this via delivering a non-intelligent circuit board known as a backplane that transmits electric signs from any port to the other port. This transmission is completed indiscriminately. Any Ethernet body that arrives on any port is instantly forwarded to each different port. during this method, a hub accurately mirrors functionality of the unique Ethernet thicknet cable.