How To Become A Cisco VPN Specialist by Chris Bryant
There's quite an emphasis on security in today's networks, and that's reflected in Cisco's certification tracks. Cisco offers a CCIE Security track and the Cisco Certified Security Professional (CCSP) intermediate-level certification, but there is no real equivalent to the CCNA on the security... This two-exam track consists of a Securing Cisco Network Devices (SND, 642-551) exam and a Cisco Secure Virtual Private Networks (CSVPN, 642-511) exam. ... To earn the Cisco VPN Specialist exam, you must hold a valid CCNA certification.

Cisco CCNA Exam Tutorial: Mapping The OSI Model To The TCPIP Model by Chris Bryant
The OSI model is the model that most networking personnel are familiar with, but to earn your CCNA, you need to know the OSI model, the TCP/IP model, and how the two map to each other. The four layers of the TCP/IP architecture can be compared to certain levels of the OSI model. ... Keeping all this straight can be very confusing when you first start your CCNA studies. ... The two layers do much the same thing. ... This layer is also referred to in the TCP/IP model as the Internet layer. ... The Network Interface layer in the TCP/IP architecture serves to define the protocols and the...

Network+ / CCNA Certification Exam Tutorial: Port Numbers And Troubleshooting by Chris Bryant
Passing the Network+ and CCNA exams demands that you know quite a few port numbers, but they're important to know when working with real-world networks as well. Before we discuss why, here's a partial list of important port numbers to know for these certification exams: Ports 20 and 21 are used... When you're faced with a list such as this, there's a temptation to ask yourself something like this: "Besides passing the exam, do I really need to know these port numbers?" The answer is yes. ... Let's say that you're in the middle of a relaxed day at your network monitoring console.

Cisco CCNP / BSCI Exam Tutorial: Not All Static Routes Are Created Equal by Chris Bryant
As a CCNP candidate, and in getting ready to pass the BSCI exam, you may be tempted to breeze through your static route studies, or even skip them! That's because static routes are easy enough to configure, and as long as you remember the syntax of the ip route command, you're in good shape. ... You know from your CCNA studies that the ip route command is used to create a static route, and that you have the option of configuring a local exit interface or a next-hop IP address at the end of the command.

Passing The Cisco CCNA Exam: An Illustrated Guide To Router Modes by Chris Bryant
When you're getting started on your CCNA studies, learning the different router modes is key to passing your Intro and ICND exams. But keeping those modes straight can be very difficult. (At least it was for me!) Let's take a look at the various router modes you'll need to know about to pass... Keep studying and your CCNA exam success is assured! ... R1(config-line)#line vty 0 4 R1(config-line)#password cisco R1(config-line)#login R1(config-line)#interface ethernet0 R1(config-if)#ip address 15.1.1.1 255.255.255.0 When you're preparing for CCNA exam success, there's a lot to absorb.

Cisco CCNA / CCNP Certification Exam Tutorial: ISDN And Multilink PPP by Chris Bryant
ISDN is a huge topic on both your Cisco CCNA and BCRAN CCNP exams. While many ISDN topics seem straightforward, it’s the details that make the difference in the exam room and working with ISDN in production networks. Configuring and troubleshooting multilink PPP is just one of the skills you’ll... Configuring Multilink PPP is just one of the skills you’ll need to earn your CCNA and pass the CCNP BCRAN exam. ... Load threshold to place another call The dialer load-threshold value is based on 255, not 100.

Cisco CCNA / CCNP Home Lab Tutorial: Routing On A Frame Relay Switch by Chris Bryant
When you're preparing for CCNA and CCNP exam success, the best investment you can make is to put together your own home lab. There is no better way to learn Cisco technologies and prepare for the CCNA, BSCI, BCMSN, CIT, and other exams than by working with the many protocols and services you'll... This switch has four serial ports and an AUI port. ... If you're connecting to less than four other routers as the frame relay switch, you can assign IP addresses to the leftover serial ports as well. ... Let's say you have a 2520 router as your frame relay switch.

CCNA / MCSE / CCNP Certification: Making Failure Work For You by Chris Bryant
Whether you're on the road to the CCNA, CCNP, MCSE, or you're on any other computer certification track, the odds are that sooner or later, you're going to fail an exam. It's happened to almost all of us, yours truly included. What you have to keep in mind in these times is that success is not a... I'm not asking you to be happy about failing an exam. ... Again, there's nothing wrong with being unhappy about failing an exam. ... You're allowed to get mad for a few minutes, vow to never take another exam again, and be disappointed.

Cisco CCNA Certification Exam Case Study: Frame Relay, Pings, And Routing Protocols by Chris Bryant
Cisco CCNA certification training includes troubleshooting your own work and that of others. The best CCNA certification training you can do is indeed troubleshooting your own Cisco router and switch configurations - as I'm always telling my students, "I can guarantee that any error you make has... As you know from your CCNA certification exam studies, RIP version 1 broadcasts updates and RIP version 2 multicasts them, so the "broadcast" option must be present for either version to send updates by using those frame mappings.

Cisco CCNA Exam Tutorial: A Guide To RAM, ROM, NVRAM, and Flash by Chris Bryant
CCNA exam success depends on knowing the details, and nowhere is this more true than knowing the various components of a Cisco router. This is also where you can quickly start drowning in acronyms! The terms "RAM" and "ROM" probably aren't new to you, but keeping up with "what goes where" with... Success on the CCNA exam depends on keeping these terms straight and knowing their contents. ... RAM contents are lost when the router is powered down or reloaded. ... RAM on a Cisco router stores operational information such as routing tables and the running configuration file.