CCNA Portable Command Guide

CCNA Portable Command GuidePrepare your CCNA exams with this CCNA Portable Command Guide book. This book will help you memorize commands and concepts as you work to pass the CCNA exam (INTRO 640-821, ICND 640-811, or CCNA 640-801). The guide summarizes all CCNA certification-level Cisco IOS® Software commands, keywords, command arguments, and associated prompts, providing you with tips and examples of how to apply the commands to real-world scenarios. Configuration examples throughout the book provide you with a better understanding of how these commands are used in simple network designs.

1000 Sample Question of CCNA Interview

Here the 3 questions of 1000 sample Questions CCNA interview:

1. As system administrator, you type “debug ipx sap” and receive the following lines as part of the IOS response: type 0×4, “HELLO2″, 199.0002.0003.0006 (451), 2 hops type 0×4, “HELLO1″, 199.0002.0003.0008 (451), 2 hops What does “0×4″ signify?
• A. That is a Get Nearest Server response.
• B. That it is a General query.
• C. That it is a General response.
• D. That it is a Get Nearest Server request.
Ans A

2. To monitor IP igrp traffic, you can use “debug IP igrp transaction” or “debug IP igrp events”. How do you display information about IPX routing update packets?
• A. debug routing
• B. debug ipx transaction
• C. debug ipx routing activity
• D. debug ipx events
Ans: C

CCNA: NAT and PAT Explanation

NAT and PAT Explanation

NAT and PAT main features:
NAT (Network Address Translation) can be used for a variety of purposes and can be either dynamically or statically assigned. Static NAT is designed to allow one-to-one mapping of local and global addresses. This is particularly useful for hosts which must have a consistent address that is accessible from the Internet. These internal hosts may be enterprise servers or networking devices.