Computer network architects design and build data communication networks, including local area networks (LANs), wide area networks (WANs), and Intranets. These networks range from small connections between two offices to next-generation networking capabilities such as a cloud infrastructure that serves multiple customers. Network architects must have extensive knowledge of an organization’s business plan to design a network that can help the organization achieve its goals. After deployment, they also may manage the networks and troubleshoot any issues as they arise. Network architects also predict future network needs by analyzing current data traffic and estimating how growth will affect the network.
Computer systems analysts, sometimes called systems architects, study an organization’s current computer systems and procedures and design improvements to them. In doing so, these analysts help the organization operate more efficiently. Most computer systems analysts specialize in computer systems that are specific to their organization type. For example, an analyst might work with financial computer systems or with engineering computer systems. Computer systems analysts work with other IT team members to help an organization’s business leaders understand how computer systems best serve the organization.
Computer systems analysts use a variety of techniques, such as data modeling, to design computer systems. Data modeling allows analysts to view processes and data flows. Analysts conduct indepth tests and analyze information and trends in the data to increase a system’s efficiency. Analysts calculate requirements for how much memory, storage, and computing power the computer system needs. They prepare diagrams for programmers or engineers to use when building the system. Analysts also work with these people to solve problems that arise after the initial system setup. Most analysts do some programming in the course of their work.
Computer network architects typically need at least a bachelor’s degree in computer and information technology, engineering, or a related field. Degree programs in a computer-related field give prospective network architects hands-on experience in classes such as network security or database design. These programs prepare network architects to be able to work with the wide array of technologies used in networks. Systems analysts may take continuing education courses throughout their careers to stay abreast of new technology. Technological advances are common in the computer field, and continual study is necessary to remain competitive.
Employers of network architects sometimes prefer applicants to have a master’s of business administration (MBA) in information systems. MBA programs generally require 2 years of study beyond the undergraduate level and include both business and computer-related courses. Network architects generally need to have at least 5 to 10 years of experience working with information technology (IT) systems. They often have experience as a network and computer system administrator but also may come from other computer-related occupations such as database administrator or computer systems analyst.
Systems analysts also must understand the industry they are working in. For example, an analyst working in a hospital may need a thorough understanding of healthcare plans and programs such as Medicare and Medicaid, and an analyst working for a bank may need to understand finance. Having industry-specific knowledge helps systems analysts communicate with managers to determine the role of the information technology (IT) systems in an organization.
The Cisco Certified Technician (CCT) certification verifies your ability to diagnose, restore, repair and replace critical Cisco networking and system devices at customer sites. The CCT Data Center certification covers support and maintenance of Cisco Unified Computing systems and server. It’s targeted at field support engineers working with Cisco data center system devices and software. This certificate covers data center networking fundamentals, field servicing and equipment replacement and how to identify Cisco Unified Computing System (UCS) component models, accessories cabling and interfaces.
Certificate | Skills Required | Exam to be Taken |
Cisco Networking | Routing, switching, network security, network design | Cisco Certified Network Associate (CCNA) |
Network Security | Security protocols, firewall configuration, intrusion detection | Certified Information Systems Security Professional (CISSP) |
Wireless Networking | LAN configuration, wireless security, troubleshooting | Certified Wireless Network Professional (CWNP) |
Cloud Networking | Network admin, virtualization, cloud service management | Amazon Web Services (AWS) Certified Advanced Networking - Specialty |
Network Design | Design principles, topologies, protocols | Cisco Certified Design Associate (CCDA) |
CompTIA Networking Certifications | Networking fundamentals, infrastructure, network operations | CompTIA Network+ (N10-008) |
The CCT Routing and Switching certification covers on-site support and maintenance of Cisco routers, switches and operating environments. It’s designed for on-site technical support and other support staff who work with Cisco Data Center Solutions. Before you can take the exam, you’ll need to take the course Supporting Cisco Routing and Switching Network Devices (RSTECH). The online self-paced course covers networking fundamentals, Cisco outer and switch models, Cisco IOS software operating modes and the Cisco command line interface (CLI).
Cisco certified network associate (CCNA certificate) packet routing and switching concentration is a systems engineering certification program that teaches how to manage servers, and ensure computer network integrity. The CCNA network administration certification is valid for three years, after which time systems administrators need to renew their qualifications to troubleshoot and configure switched and routed networks. This may also include implementation of data-communications software, via remote internet access using either WAN or WiFi networks.
This video explains Network Protocols, then briefly describes the functionality of the 8 most common networking protocols on the Internet: DNS, DHCP, HTTP, SSL, TLS, HTTPS, FTP, and SMTP. We follow that with a discussion on the four items which MUST be configured to achieve any sort of Internet connectivity.
Use of the Internet on the go, or when making mobile phone calls, is made possible thanks to the invisible electromagnetic waves that mobile phones emit or receive. These parcels of electromagnetic frequency (EMF) range, or spectrum, have been allocated to telecom companies via auction.
This animation explains how a mobile phone makes a call, and why there are different generations of mobile communications. Let’s explore the technology behind mobile communications.
This full college-level computer networking course from Free Code Camp will prepare you to configure, manage, and troubleshoot computer networks. It will also help you prepare for CompTIA's Network+ exam.
Network security is a complex and constantly evolving field. Practitioners must stay on top of new threats and solutions and be proactive in assessing risk and protecting their networks. The first step to understanding network security is to become acquainted with the actual threats posed to a network. Without a realistic idea of what threats might affect your systems, you be unable to effectively protect them.
The Security Architecture and Models domain of the Common Body of Knowledge embodies the study of formal models for design and evaluation of systems needed for the highest levels of information security, including those that protect national secrets and other government property. The trusted computing base, or TCB, is the portion of a computer system that contains all elements of the system responsible for supporting the security policy and supporting the isolation of objects on which the protection is based.
Access controls differentiate between identifying users of a system and authenticating them. This is done using discretionary means where an information owner decides who obtains access rights, mandatory means where the system decides access rights based on classifications and clearance, and role-based means that group people with a similar need for access together and tie access rights to the role people are assigned. Problems with passwords have led to the development of alternatives, such as tokens using one-time passwords and smart cards that use cryptography to authenticate user identity.
Network Analysts are responsible for evaluating, implementing, and maintaining network systems within an organization. They ensure optimal performance and security of network infrastructure by monitoring network traffic, troubleshooting issues, and performing regular maintenance. Network Analysts work closely with other IT professionals to design and implement new network solutions, as well as to upgrade and enhance existing systems.
Network Architects design and plan the overall network structure of an organization. They develop comprehensive network plans that outline the layout and connectivity of network systems, including hardware, software, and communication protocols. Network Architects also evaluate new technologies and integrate them into the network architecture to improve efficiency and performance.
Network Security Engineers focus on protecting an organization's network infrastructure from cyber threats and unauthorized access. They design and implement security measures such as firewalls, intrusion detection systems, and encryption protocols to safeguard network data. Network Security Engineers also conduct regular security assessments, vulnerability testing, and audits to identify and mitigate potential risks.
Systems Analysts analyze and design IT systems to meet the needs of an organization. They work with stakeholders to understand business requirements and translate them into technical specifications. Systems Analysts also evaluate existing systems, recommend improvements, and oversee the implementation of new systems or enhancements. Their role involves coordinating with developers, network administrators, and other IT professionals to ensure that systems are efficient, reliable, and aligned with business goals.
Ask yourself if you can see yourself being a professional network engineer, working with technical concepts and complex equipment, which can be challenging. While engineering classes and internships will prepare you well, certain innate qualities that you bring to bear will help you succeed.
Attending college offers benefits beyond academic learning. Students are exposed to diverse perspectives that challenge their thinking. This fosters problem-solving and communication. College is also about social skills. Whether through student organizations or sports teams, students develop leadership skills and build lasting friendships.
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