Resources for IT Learners and Leaders

Unsure which CompTIA test to take first? Explore the differences between Network+, Security+, and A+. Learn about how the different network certifications, cybersecurity certifications, and the benefits of CompTIA for your IT career.

In order to ensure proper upkeep and operation of computer systems in an office network, look for a system administrator with decent skills in the field. A system administrator or a system center configuration manager should be able to handle all types of situations and maintain a fully functional computer network at all times. The average salary for a system administrator is nearly $64,000 per year in the United States, and a proficient system administrator is worth every penny. The best system administrators are characterized by a few must-have skills. Reference those skills below, to identify everything your company should look for when filling open system administrator roles.

You must have heard about CCNA, right? The CCNA certification falls in the category of entry-level certification in the field of computer networking. The CCNA (Cisco Certified Network Associate) certification was created by Cisco to test a competitor's information on networking at a basic level. This certification breaks down the beginner’s capacity for the installation, configuration, operation, and troubleshooting of medium-size switched and routed networks.

Internet security has been up for debate for quite some time now but still users seem in denial for using the processes and systems that can mask their internet security. The redundancy of this concept is however somewhat alleviated by some thoughtful users that use either a proxy or VPN for the sake of hiding their online activity from hackers and cybercriminals.

The heart of Cisco networking includes routers, switches, and wireless access points. Everything you use on the internet is due to the above three foundational concepts. However, each performs different actions. In this cheat sheet, we’ll go over the basic vocabulary and commands used to earn a Cisco Networking certification or to simply review the essentials.

Digital transformation seems to be a high phrase about which every other person is wild these days. Businesses are moving towards digitalization, whereas those who don’t embrace it would get nothing. Organizations spend a big value of money on a digital - transformation of their dealings. Any small size or big size organization possess a similar goal in mind, that is to make use of such kinds of technologies - as a way to turn out their business more innovative. Their goal isn’t only to second their present business into the digital mode but also to make its additional powerful version.

A distant memory is the times of buyers shopping just at actual stores. With the assistance of the web, numerous retailers do a large portion of their business on the web, and organizations not using web-based business are found scrambling to make an online presence.

A subnet, or subnetwork, is an organization inside an organization. Subnets make networks more effective. Through subnetting, network traffic can travel a more limited distance without going through pointless switches to arrive at its objective.

At the highest level, both VLAN and Subnet are similar in such a kind of manner that they are dealing with a segment or partition of a network. Although VLAN’s are those which are the data - link layer (O-S-I layer-2) constructs. On the other side, Subnets are considered as network - layer (O-S-I layer-3) I-P constructs, as well as addressing another kind of concerns within a network. However, it is the usual practice for creating a personalized association among a Subnet and a VLAN. It is a fact that both of them are independent at layer-3 and layer-2, are constructing further scalability while they design the network.

It is believed that net-admins and sys-admins both play two very important roles in all IT teams. Everyone needs the expertise, skills, and experience to succeed, and any role can be relatively profitable. In the pool of technology, computer networks are considered as the key to every single business. As an integral part of the job - sometimes the product itself - computer networks need a dedicated workforce or many employees to manage day-to-day network operations. That’s where the sys-admins come in.

To break the larger network into smaller sub-networks is called subnets. Subnetting is the method of stealing bits from the HOST portion of an IP address. We end up with NETWORK SUBNET HOST fields after sub-netting. To identify the subnet and another one to identify the broadcast subnet address, we always reserve an IP address.

From the last few decades in technological growth, data storage technology is the most important one. In a couple of years, we have managed to reduce the size of 1TB of storage from massive and standalone drives. The average user now has more and more storage options that are cheaper, compact, and more efficient.