I am often asked for advice on
how to enter the networking job market. My responses have changed a bit over
the years as the market has changed, but overall my reaction remains the same.
This is because the core of the network has not changed. Still, the two devices
must be able to communicate with each other.
The basic methodology to ensure
proper communication hasn't really changed since the dumb terminal to the head
unit was changed during the days of a direct serial connection. You must
initiate communication, respond to initiation, and respond to the agreement on
how to communicate. In the IP world, this is the well-known "3-way
handshake" associated with SYN, SYN-ACK, and ACK packets.
To start your first entry level network engineer job,
you must be able to set up a system that establishes communication between the
two parties before the relevant data is passed. The first landing always
requires constant luck, but a few tips increase your chances of success.
Specialized In The Field.
The term "network
administrator" can historically refer to different types of positions. For
example, in the 1990s, it often meant managing a Novell file server. It may
currently appear in an advertisement for a Windows server administrator. It can
also mean LAN, WAN or SAN management.
The saturation of acronyms is a
fact of networks. Positions may require knowledge of Open Shortest Path First
or Border Gateway Protocol. On the voice side, there are network administrators
whose primary role is to manage the Voice over IP network. Listed below are the
necessary network services such as Domain Name System (DNS), Dynamic Host
Configuration Protocol (DHCP), Lightweight Directory Access Protocol, Remote
Dial-Up Authentication Service, and Active Directory.
Networking is a very broad area
and it is important to determine and become familiar with a particular niche.
Composer Billy Joel once said that he was not outstanding as a pianist, but
rather as a pianist because he was capable on the worldly field. Early in your
career, you must focus on specific aspects of network management in order to
compete with the average area.
However, as you progress down the
selected path, the opposite is true. Due to the intertwined aspects of
networking and IT in general, it is important to understand how your experience
contributes to the overall IT environment as you progress through your
networking career.
When trying to establish yourself
in the networks, it is advantageous to focus on being competent in one area and
at the same time expand your knowledge in other aspects of the network and IT.
In fact, when you reach your first network position, your exposure to other
elements occurs based on that position.
Certification & Experience
After a career decision has been
made, it is important to consider what education is available and what it takes
to excel in the field. A few years ago, getting certified was as easy as taking
a course and passing an exam or set of exams. This is a proven way to test your
knowledge.
However, the problem is that the
applied knowledge was not tested. The market was flooded with IT staff with
multiple certifications. Due to the rapid growth of the IT job market at the
time, in many cases a certification provided more than one job offer, but it
applied to how network principles were applied in real-life situations. It was
not clearly demonstrated by the person.
Without the benefits of
experience, applying knowledge from time to time becomes an insurmountable
task. I remember an applicant who had one of the most popular certifications at
the time a few years ago and was very familiar with how TCP works. However,
when the requester shows evidence of a simple network connection problem (the
client had an incorrect DNS server entry and issued an unknown request to an
unknown DNS server), the requester diagnosed the problem. Could not assign group
"Rejected" later.
This does not mean that
authentication is not important, but that it is not a magic wand to win killer
network jobs. Getting certified means much more (and is more valuable) if you
first reach a certain level of experience. Fortunately, earning some of the
most in-demand certifications today requires some experience in the industry.
Additionally, many entry-level
networking jobs require a college degree, while others do not. Recruitment
requirements often require a degree in a relevant discipline or equivalent
experience. A relevant degree may meet the experience requirements.
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