CCNA Cisco Certified Network Associate Test Yourself Practice Exams (exam 640-507)

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9780072126686: CCNA Cisco Certified Network Associate Test Yourself Practice Exams (exam 640-507)

Don't let the real test be your first test! Osborne's CCNA Cisco Certified Network Associate Test Yourself Practice Exams contains hundreds of practice questions for exam 640-507. The book is organized by official exam objectives and contains in-depth answers that explain why the correct options are right and why the incorrect options are wrong. Plus, a key code in the book entitles you to download full practice exam software from our site!

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Product Description:

This work aims to prepare candidates for examination. It features a self-test covering all the official exam objectives and over 700 practice exam questions with answers. A new layout enables readers to distinguish between correct and incorrect answers.

From the Back Cover:

Don't Let the Real Test Be Your First Test!


More Questions - More Content: Score Higher With The Most Effective Self-Testing and Quick Review Program Available


-Based on the Cisco Certified Network Associate exam 640-507
-Coverage features quick review of all technology objectives and more than 300 realistic exam questions to build your knowledge
-Includes free CCNA ExamSim Volume II practice exam.
-Exclusive "Exam Watch" features point out the most frequently missed questions - and how to answer them correctly

Answers provide in-depth explanations - and show why the incorrect choices are wrong, as shown below:

Your have a TCP/IP network that uses a single network ID. There are 45 users on this network, and about eight of the users spend most of the day sending files with an average size of 145MB to each other over the network. This is significantly slowing down overall network performance for all users on the network. What would be the most cost-effective solution for solving network performance problems?

A. Install an active hub

B. Install a bridge

C. Enable the scope on the DHCP server

D. implement distance vector routing protocols

B. Installing a bridge will allow you to partition the collision domain for users transferring large files. In this way, traffic between users who transfer large files to each other will remain on one side of the bridge. The other users of the network will be located on the opposite side of the bridge, and will not be affected by the file transfers.

A. An Active hub will not partition the collision domain. C and D are incorrect, since the implementation of routing protocols will not improve performance; no routing is taking place within the single subnet.

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