Download CCNA INTRO: Introduction to Cisco Networking Technologies by Todd Lammle PDF

By Todd Lammle

Take your first step to CCNA certificationFrom bestselling writer Todd Lammle comes the main up to date publication on CCNA examination 640-821, the 1st examination in Cisco's renowned two-exam Cisco qualified community affiliate (CCNA) certification tune. comprehend networking for the small or domestic place of work marketplace, organize for the examination, and obtain the talents you wish with this entire advisor. inside of you will find:Complete insurance of all examination goals in a scientific procedure, so that you will be convinced you are getting the guideline you needPractical hands-on workouts to augment severe skillsReal-world situations that exhibit you lifestyles past the school room and placed what you might have discovered within the context of exact task rolesChallenging evaluation questions in every one bankruptcy to organize you for examination dayExam necessities, a key function on the finish of every bankruptcy that identifies severe components you want to develop into knowledgeable in prior to taking examination 640-821A convenient tear card that maps each legitimate examination aim to the corresponding bankruptcy within the booklet, so that you can tune your examination prep aim by means of objectiveLook inside of for entire insurance of all examination pursuits.

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Extra info for CCNA INTRO: Introduction to Cisco Networking Technologies Study Guide (Exam 640-821)

Example text

64 + 64 = 128. 128 + 64 = 192. The subnet is 128, the broadcast address is 191, and the valid host range is the numbers in between, or 129–190. See Chapter 3 for more information. 4. B. The passive command, short for passive-interface, stops regular updates from being sent out an interface. However, the interface can still receive updates. See Chapter 5 for more information. 5. C. Internet Control Message Protocol (ICMP) is the protocol at the Network layer that is used to send echo requests and replies.

Fm Page xxviii Wednesday, September 6, 2006 9:46 AM xxviii Answers to Assessment Test 18. C. The Transport layer creates virtual circuits between hosts before transmitting any data. See Chapter 1 for more information. 19. C. User Datagram Protocol is a connection network service at the Transport layer and DHCP uses this connectionless service. See Chapter 2 for more information. 20. D. The command used to copy a configuration from a router to a TFTP host is copy flash tftp. See Chapter 8 for more information.

When a switch interface receives a frame with a destination hardware address that isn’t found in the device’s filter table, it will forward the frame to all connected segments. If the unknown device that was sent the “mystery frame” replies to this forwarding action, the switch updates its filter table regarding that device’s location. But in the event the destination address of the transmitting frame is a broadcast address, the switch will forward all broadcasts to every connected segment by default.

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