Salary Survey Extra is a series of periodic dispatches that give added insight into the findings of our most recent Salary Survey. These posts contain previously unpublished Salary Survey data.

The internet almost certainly still comes into your home or office via some form of cable, but wireless transmission is often (if not always) what gets it to all of the phones, tablets, televisions, and desktop and laptop computers from there. We still have a ways to go before everyone can live in a wireless world, but wireless internet technology is growing fast.

What's also growing fast is the market for computer networking professionals who have a solid grasp of wireless concepts and tools. That's almost certainly a factor in the No. 31 ranking for Cisco Certified Network Associate (CCNA) Wireless on our most recent Salary Survey 75 list. If you need a point of entry to the wireless networking realm, CCNA Wireless is a great place to start.

Here's what the salary picture looks like for CCNA Wireless holders who responded to the Salary Survey:

All U.S. Respondents
Average Annual Salary: $118,040
Median Annual Salary: $96,250
How satisfied are you with your current salary?
Completely Satisfied: 25 percent
Very Satisfied: 16.8 percent
Satisfied: 41.6 percent
Not Very Satisfied: 16.6 percent
Not At All Satisfied: [No responses]

All Non-U.S. Respondents
Average Annual Salary: $61,760
Median Annual Salary: $32,500
How satisfied are you with your current salary?
Completely Satisfied: [No responses]
Very Satisfied: 7.1 percent
Satisfied: 35.7 percent
Not Very Satisfied: 28.5 percent
Not At All Satisfied: 28.6 percent

The largest single body of CCNA Wireless holders to participate in the survey is made up of U.S. residents: 46.2 percent of those surveyed. We also heard from credential holders in 12 other countries: Australia, Bulgaria, Canada, Chile, Croatia, Dominican Republic, Greece, India, Mexico, Norway, Panama, and the United Kingdom.

Following the standard Deep Focus pattern, an overwhelming majority of the CCNA Wireless holders who responded to the survey are men (96.3 percent), with just a smattering of ladies in the mix. On the whole, this is a youngish group, with 53.8 percent of those surveyed between the ages of 35 and 44, and a further 11.5 percent between the ages of 25 and 34. The rest are either between the ages of 45 and 54 (19.3 percent of those surveyed) or between the agaes of 55 and 64 (15.4 percent).

Roughly 80 percent of the CCNA Wireless holders who participated in the survey have an educational background that includes time spent at a college or university. The highest level of formal education completed by most is either a bachelor's degree (50 percent of respondents), master's degree (23.1 percent), associate's degree (3.9 percent), or professional degree (3.8 percent). Everyone else — 19.2 percent of those surveyed — completed some level of post-high school technical training, but did not earn a college degree.

Among all CCNA Wireless holders, 96.3 percent are employed full-time, with the rest (3.7 percent) holding part-time jobs. Among those who have full-time jobs, most are putting in either the standard 40 hours per week (50 percent of respondents) or find themselves at work either between 41 and 50 hours per week (38.5 percent), or more than 50 hours per week (7.7 percent). The outliers are the 3.7 percent of full-time workers surveyed who put in between 31 and 39 hours per week.

In terms of workplace standing, the largest single group of CCNA Wireless holders are at the senior specialist level (55.6 percent). The rest, in descending order, are either rank-and-file employees (18.5 percent of those surveyed), specialists (7.5 percent), managers (7.4 percent), executives (7.3 percent), or directors (3.7 percent).

Nearly three-quarters (74.1 percent) of the CCNA Wireless holders we heard from are veterans, having worked in a role that directly utilizes one or more of their certified skills for more than a decade. The rest have been plying their certified skills for either between 3 and 5 years (3.7 percent), or between 6 and 8 years (22.2 percent).

Finally, here's the view of CCNA Wireless holders on key questions from the survey about how certification impacts job performance:

At my current job I use skills learned or enhanced through certification:
Several times a day: 55.6 percent
Several times a week: 18.5 percent
Several times a month: 7.4 percent
Occasionally: 14.8 percent
Rarely: 3.7 percent

Since becoming certified, I feel there is greater demand for my skills.
Strongly agree: 44.5 percent
Agree: 29.6 percent
Neither Agree nor Disagree: 14.8 percent
Disagree: 3.7 percent
Strongly Disagree: 7.4 percent

Becoming certified has increased my problem-solving skills.
Strongly agree: 44.4 percent
Agree: 40.7 percent
Neither Agree nor Disagree: 11.2 percent
Disagree: [No responses]
Strongly Disagree: 3.7 percent

Becoming certified has increased my workplace productivity.
Strongly agree: 51.9 percent
Agree: 18.5 percent
Neither Agree nor Disagree: 18.5 percent
Disagree: [No responses]
Strongly Disagree: 11.1 percent