The 640-822 exams’ main focus is on generating expert network engineers for the world. Hence the test is designed strict enough to filter out incompetent technicians. Candidates should pass this test so as to be eligible for the CCNA certifications. The test covers a wide range of topics to check the skills of the candidate. Let us have a glance at what it takes to pass the 640-822 exams.

The main topics covered by the test include:

o Fundamentals of Switching & Routing
o Working knowledge on OSI & TCP/IP
o Networks such as VLANs
o Frame Relay and WAN connections
o IP addressing
o N/W security

Apart from these, the 640-822 exams also cover several other topics. So it is important that the candidates build up their knowledge and skills in the subsequent areas before appearing for the exams.
The candidates should have a theoretical as well as practical knowledge of the various network devices. They should also be aware of: web applications, the components needed for particular networks, networking, TCP/IP models, OSI models and protocols.

Other stuffs to know include: troubleshooting of common network problems, traffic management and network segmentation, network diagrams, verification of network status, the use of utilities like ping, telnet, SSH, traceroute, ipconfig, debugging commands, NAT and its uses, CLI basics, routing concepts, security and security applications, wireless networks, and a good acquaintance with VLANs, VTP, LAN, WAN, RSTP, VLSM etc.

As the syllabus appears rather vast, it is better to get assistance from someone who has already passed this exam. Or you can also go for e-learning programs offered on the web that comes with exam simulations. Taking part in such training courses allows you to be one step ahead of the thousands preparing for this exam. All the best!