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Category: Technology

Stuff for Geeks

Stock Pick – February 6, 2019

I purchased 10 shares in AppFolio (APPF) for $63.25 today. They do not pay a dividend but are a growth company. AppFolio is a cloud services company. They provide Software As a Service (SAAS) to 2 different vertical markets. Their main product is for property management companies. They are one of the largest (I think […]

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Stock Picks – August 13, 2018

Stock pick I believe one of the best deals currently is AT&T (NYSE:). When something thinks of AT&T they typically think of a telecommunication company, which sells cell phone service, telephone lines, fiber connections, perhaps satellite TV (DirecTV), cable TV, and over the top TV (DirecTV Now and Watch TV). In other words AT&T is […]

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Stock Picks – July 26, 2018

Stock Pick # 1 I recently purchased shares of MongoDB Inc ((). MongoDB Inc was originally founded in 2007 and is the developer of the MongoDB database. I use MongoDB in some of the technology that I sell and service and their popularity continues to grow. They are still a small company but growing fast, […]

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Emergency Power for Amateur Radio

I published this article earlier today on the Southern Nevada MARA Website.  I am cross posting it here as well. I recently added a battery backup for my ham radio station.  I am using a mobile rig as my base station.  On the right is a picture of my setup.  It features: Mobile Radio Power-Werx’s […]

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Michael H. Cox, CCNA

Its official! I passed 640-816 ICND2 exam today so I am now officially a Cisco Certified Network Associate, more commonly called CCNA.  This was a hard exam.  I started working on ICND1 back in April or May.  Before then, I had never really worked on a Cisco device.  As I mentioned on my July 5 blog […]

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EIGRP notes

This is part of the Cisco Notes series on Mike’s World News. EIGRP is only available on Cisco devices. EIGRP can carry routing info for mulitple protocols (IP, IPX, Appletalk, etc) Administrative Distance of 90 (the most preferred of all Routing Protocols discussed for CCNA.

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OSPF notes

This is part of the Cisco Notes series on Mike’s World News. Open Shortest Path First (OSPF) is a Link State Routing protocol. It is a Classless protocol, so it supports Variable Length Subnet Masks (VLSM) and CIDR. OSPF does not use Split Horizon nor does it use Auto Summarization. It uses Dijkstra SPF algorithm. […]

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RIP v1 and RIP v2 notes

This is part of the Cisco Notes series on Mike’s World News. There are 2 versions of RIP that IPv4 networks can use as a Routing Protocol, namely RIP version 1 and RIP version 2. Both RIP v1 and v2 are Distance Vector protocols.  This means that the way they advertise routes is based on […]

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Routing Protocol Basics

This is part of the Cisco Notes series on Mike’s World News. The CCNA exam covers 4 Routing Protocols.  Routing protocols should not be confused with routed protocols.  A routing protocol tells out routers how to find the networks that are connected to them.

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Frame-Relay Notes

This is part of the Cisco Notes series on Mike’s World News. Frame Relay is a Common WAN protocol which exists at layer 2 only, therefore frames are transmitted. The frames are a variable sized. can transmit upto 1.54 mb. Your router is the DTE. They receive the clocking speed from the DCE, inside the frame-relay cloud.

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