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Wireless Networking and the IT Professional


Surely the WLANs have proved themselves in the vertical marker like Healthcare, Education and Retail markets they are now making incursions into general business computing environments. The technology no doubt has witnessed increased acceptance in the last few years not only within the enterprise, but also within the home, public access, and embedded device markets. This is made possible not only by improvements in performance and manageability but also in security and interoperability and the general decrease in price.

Why does an organization consider wireless?
Getting an answer to this multi-million Naira question is the very first step to putting your WLAN on the ground of successful deployment. A proper definition of organization business and user requirements will not only make possible the deployment of a wireless networks that will save networking million of Naira, but also increase productivity and user satisfaction. Organization deploying WLAN should as well know many users require mobility, and their roaming coverage. Since knowing the users and their application requirements will help define coverage areas that reduce cost or compromise security by sending the signal beyond the intended areas. In the area of bandwidth requirements, the question of what user applications will run on the wireless network should be considered, this will help determine bandwidth requirements and identify wireless LAN requirements.

Noteworthy is the fact that WLAN is a shared medium and not a switched medium. While most mainstream networked applications can be migrated to a shared WLAN, it’s not necessarily appropriate for all applications.

Other Issues to Consider in Wireless Deployment
The ABGs of Wireless, Choosing the standards, ROI and Security.
Why Become a Certified Wireless Network Administrator (CWNA)
The wireless segment of the networking industry is growing at an astounding rate of over 40% per year and is generating tremendous revenue. Infact, during recent networking company slumps, the wireless networking sector continued to grow at an astonishing pace.
Prometric, of the of the worldwide leaders in online testing claimed that, there are hundreds of different brands of wireless networking equipment on the market today, and that no one is qualified to administer all of them. The Certified wireless Network Professional (CWNP) program is offered as the first vendor neutral certification exam program to certify Wireless networking knowledge.

Wireless LANs offer the following productivity, convenience, and cost advantages over traditional wired networks:

Wireless LAN system can provide LAN users with access to real-time information anywhere in their organization. This mobility supports productivity and service opportunities not possible with wired networks.

Installation Speed and Simplicity
Installing a wireless LAN system can be fast and easy and can eliminate the need to pull cable through walls and ceilings.

Installation Flexibility
Wireless technology allows the network required for wireless LAN hardware can be higher than the cost of wired LAN hardware, overall installation expenses and lifecycle costs can be significantly lower. Long-term cost benefits are greatest in dynamic environments requiring frequent moves and changes.

Reduced Cost-of-Ownership
While the initial investment required for wireless LAN hardware can be higher than the cost of wired LAN hardware, overall installation expenses and life-cycle costs can be significantly lower. Long-term cost benefits are greatest in dynamic environments requiring frequent moves and changes.

Wireless LAN systems can be configured in a variety of topologies to meet the needs of specific applications and installations and installations. Configurations are easily changed and range from peer-to-peer networks suitable for a small number of users to full infrastructure networks of thousands of users that enable roaming over a broad area.

Wireless LANs in Your Industry
Explore how you can benefit from wireless LANs in your specific industry. Corporate With a wireless LAN, corporate employees can take advantage of mobile networking for e-mail; file sharing, and web browsing regardless of where they are in the office.

Academic institutions leverage the benefits of mobile connectivity by enabling users with notebook computers to connect to the university network for collaborative class discussions and to the Internet for e-mail and web browsing.

By carrying a handheld PC with a wireless LAN adapter, financial traders can receive pricing information from a database in real-time and improve the speed and quality of trades. Accounting audit teams increase productivity with quick network setup

Using wireless handheld computers to access real-time information, healthcare providers increase productivity and quality of patient care by eliminating patient treatment delays, redundant paperwork, potential transcription errors, and billing cycle delays.

Hospitality and Retail
Hospitality services can use wireless LANs to directly enter and send food orders from the table. Retail stores can use wireless LANs to set up temporary registers for special events.

Wireless networking helps link factory floor workstations and data collection devices to a company’s network.

In warehouses, handheld and forklift-mounted data terminals with barcode readers and wireless data links are used to enter and maintain the location of pallets and boxes. Wireless improves inventory tracking and reduces the costs of physical inventory counts.

Wireless technologies have been exploding in the IT arena for some years, and more WLANs solutions are emerging frequently. The need for wireless expertise grows rapidly on a daily basis. To fill the vacuum, the CWNP program offers various programs to enable interested individuals earn certifications as they acquire network wireless technology skills and knowledge.

Partly due to the proliferation of wireless LAN equipment at home and work place, CWNP program addresses the IT industry’s demand for skilled network expert administrators who are capable of implementing and administering many different types of wireless LAN equipment. The intent is to create standard measurement of knowledge in this critical and expanding field. CWNP is the recognized standard for enterprise Wi-Fi training and certification.

According to CWNP, "CWNA is an administrator level career certification for networkers who are in the field and need to thoroughly understand RF behavior, site surveying, installation, and basic enterprise Wi-Fi security. CWNA is where you learn how RF and IP come together as a Wi-Fi network. The CWNA certification is valid for 3 years".


Earning CWNA/CWNP will measure your knowledge of the following wireless networking topics: WLAN security;  WLAN concept; Vendor-specific information; Networking Technologies

In addition, once you’ve earned your CWNA PW0-104, you’ll be qualified to administer various brands of wireless networking equipment from companies like Agere, Intersil, Intel, Bell South, Harris etc.
The CWNA certification covering the current objectives will certify that successful candidates with knowledge in fundamentals of RF behavior, can describe the features and functions of components, and know the functions of components, and have the skills needed to install, can configure and troubleshoot hardware peripheral and protocols.

CWNA is the foundation of the CWNP program covering a broad range of wireless networking topics, CWNA bring IT professionals who are new to wireless networking up to speed quickly. For those individuals already familiar with wireless LANs, earning the CWNA certification fills in the gaps in their knowledge, students learn how to administer, install, configure and troubleshoot wireless network systems.

The following chart provides the breakdown of the CWNA PW0-104 subject areas and % focus

Subject Area %
Radio Frequency (RF) Technologies 21
IEEE 802.11 Regulations and Standards 17
IEEE 802.11 Protocols and Devices 17
IEEE 802.11 Network Implementation 17
IEEE 802.11 Network Security   10
IEEE 802.11 RF Site Surveying 18

The CWNP Enterprise Wi-Fi Career Certifications program has grown over the years into several training and certification tracks:

Each certification offers you the opportunity to enhance and measure your wireless networking knowledge.

CWNA Certified Wireless Technology Specialist

CWNA Certified Wireless Network Administrator
CWSP Certified Wireless Security Professional

CWDP Certified Wireless Design Professional

CWAP Certified Wireless Analysis Professional

CWNE Certified Wireless Network Expert

CWNT Instructor Certification

As organizations adopt wireless LAN technology to gain competitive advantages of an increasingly mobile and productive workforce, they need qualified professionals who can design, install, support, troubleshoot and operate a wireless solution.

The CWNA certification indicates significant knowledge of relevant factors involved in deploying over 100 brands of WLAN products in the market. CWNA understands radio technologies associated with the IEEE 802.11 standards, understand and WLAN and bridge topologies and applications, can configure WLAN products including access points, bridges, clients device and accessories, can explain software and network management issues, understand basic antenna theory, understand how to perform a site survey covering WLAN topology and challenges including equipment utility and cable awareness plus the main issues bordering on security and it emerging standards.

Becoming the Wireless Networking Professional

Wireless is here to stay. It needs people who can design, setup and support wireless  networks - Wireless Network professionals. But is wireless simply an all comers game? Interested? In a world where your ability to contribute is paramount, forget about status quo and other chains of the past. Interested? The doors are always open -  measure up with recognized and acknowledged credentials. CWNA brings relevance and competence into the arena with global standard for validating wireless network expertise.

The World is going wireless. Where are you going?


Lekan Akinremi, CCNA, CWNA
Lekan Akinremi is a seasoned network administrator with experience in both wired and wireless networking. One of the first CWNAs in Nigeria, he is a Btech graduate of Physics and Electronics. 

For more coverage and information related to this topic, 

Certified Wireless Network Administrator CWNA Training

Certified Wireless Network Administrator CWNA Test Essentials

Certified Wireless Network Administrator CWNA Target Audience

Click here for more Wireless Networking (WLAN) resources

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