TCP/IP and the OSI Reference Model

As illustrated in Figure 1.2, the TCP/IP model consists of four layers, each of which can have several sublayers. These layers correlate roughly to layers in the OSI reference model and define similar functions. Some of the TCP/IP layers correspond directly with layers in the OSI reference model while other span several OSI layers. The four TCP/IP layers are:...• The TCP/IP Application Layer refers to communications services to applications and is the interface between the network and the application. It is also responsible for presentation and controlling communication sessions. It spans the Application Layer, Presentation Layer and Session...

Read more »

CCNA Practice Tests 3.1.0

Publisher's Description:CCNA Practice Tests - About CCNA - Cisco Certified Network Associate certification is awarded by Cisco(R) Systems on successful completion of CCNA (Exam code: 640-607) exam. CCNA is a foundation level certification offered by Cisco(R). The exam objectives include TCP/IP fundamentals, OSI model, networking fundamentals like Ethernet, Token Ring, FDDI;Cisco IOS fundamentals, and simple router and switch configurations. CCNA is a leading certification in the area of vendor specific certifications in computer networking technologies.Practice tests for CCNA (Cisco Certified Network Associate) conforms to the latest objectives...

Read more »

Ebook.CCNA Security Official Exam Certification Guide Exam 640-553 Exam Certifica.1587202204

Ebook.CCNA Security Official Exam Certification Guide Exam 640-553 Exam Certifica.1587202204Download now...

Read more »

CCNA 4 - Final Exam Answers

1Which of the following describes the roles of devices in a WAN? (Choose three.)*** A CSU/DSU terminates a digital local loop.A modem terminates a digital local loop.A CSU/DSU terminates an analog local loop.*** A modem terminates an analog local loop.*** A router is commonly considered a DTE device.A router is commonly considered a DCE device.www.p4s-ccna.blogspot.com2What value in the address field of a Frame Relay header identifies the destination of the frame?CIRDE*** DLCIISDNFRADPVC3The serial PPP link between the Left and Right routers is configured as shown in the diagram. Which configuration issue explains why the link is unable to establish a PPP session?The IP addresses must be on different subnets.*** The usernames are misconfigured.The passwords must be different for the CHAP authentication.The...

Read more »

CCNA 2 v4.0 Final Exam Answers

Download CCNA 2 v4.0 Final Exam Answ...

Read more »

CCNA1 V4.0 Final 100%

Download CCNA1 Final 1...

Read more »

Cisco Press ICND1 2nd Edition Jan 2008

Contents at a GlanceForeword xxiiIntroduction xxiiiChapter 1 Building a Simple Network 3Chapter 2 Ethernet LANs 139Chapter 3 Wireless LANs 207Chapter 4 LAN Connections 237Chapter 5 WAN Connections 345Chapter 6 Network Environment Management 425Appendix Answers to Chapter Review Questions 465Index 480Download Cisco Press ICND1 2nd Edition Jan 2008 part1Download Cisco Press ICND1 2nd Edition Jan 2008 part2Download Cisco Press ICND1 2nd Edition Jan 2008 part3Download Cisco Press ICND1 2nd Edition Jan 2008 part4Download Cisco Press ICND1 2nd Edition Jan 2008 pa...

Read more »

CCNA1 FINAL 100% (Updated Jan 14 - 2009)

1 A PC can not connect to any remote websites, ping its default gateway, or ping a printer that is functioning properly on the local network segment. Which action will verify that the TCP/IP stack is functioning correctly on this PC?Use the ipconfig /all command at the host�s command prompt.----> Use the ping 127.0.0.1 command at the command prompt.Use the traceroute command at the command prompt to identify any failures on the path to the gateway.Use FTP to check for connectivity to remote sites.Download a troubleshooting tool from the PC manufacturer's website.2 Refer to the exhibit. Which set of devices contains only intermediary devices?----> A, B, D, GA, B, E, FC, D, G, IG, H, I, J3 Refer to the exhibit. When computer A sends a frame to computer D, what computers receive...

Read more »

CCNA Practice Exam - Cisco Certified Network Associate 640-802

About CCNA™ certification: CCNA - Cisco Certified Network Associate is an entry level certification and the most popular Cisco certification. Getting CCNA certified ensures that the candidate has enough knowledge to plan, configure, and operate simple routed WAN and switched LAN networks using Cisco products. CCNP - Cisco Certified Networking Professional is the next level of certification offered in the Cisco product implementation track. No pre-qualification is necessary to take CCNA exam.  640-802 is the only exam necessary to pass for obtaining CCNA certification. The exam covers topics on Extending Switched Networks with VLANS, Determining IP Routes, Managing IP traffic with Access Lists and extended Access Lists,...

Read more »

CONFIGURING STATIC ROUTING RIP IGRP OSPF ON CISCO ROUTER

...

Read more »

IP adress

...

Read more »

Subnetting in 6 easy steps - part 1

...

Read more »

Cisco Training CCNA IP Addressing - Part 1 of 5

...

Read more »