Follow @ASM_Educational Taking a Network+ exam? Follow us on Facebook and ask us about our study group. The (Open Systems Interconnection) OSI has been developed by International Organization for Standardization (ISO). The OSI model provides a framework for creating and implementing networking standards and devices and describes how network applications on different computers can communicate… Read more »
Posts Tagged: CompTIA
CompTIA Net+ | Microsoft MTA Networking: 802.11: Wi-Fi Standards
Follow @ASM_Educational Taking a Network+ exam? Follow us on Facebook and ask us about our study group. WiFi is not an acronym but a brand name created by a marketing firm that’s meant to serve as an interoperability seal for marketing efforts. WiFi technology however provides wireless Internet access via the use of radio waves… Read more »
CompTIA Net+ | Microsoft MTA Networking: COMPARE AND CONTRAST THE CHARACTERISTICS OF NETWORK TYPES
Follow @ASM_Educational Taking a Network+ exam? here are some network types you should know. What is a LAN ? A local area network (LAN) is a computer network within a small geographical area such as a home, school, computer laboratory, office building or group of buildings. A LAN is composed of inter-connected workstations and personal… Read more »
CompTIA Network+ | Microsoft MTA Networking: VLAN – Virtual Local Area Networks
Follow @ASM_Educational When you buy brand new switches all we need connect the PC to switch port and then PC can talk to each other ; but I can take a Switch like Cisco Switch and create a few VLAN ; such as (Here is general Idea of VLAN) VLAN 10 = Publishing VLAN… Read more »
CompTIA Network+ | Microsoft MTA Networking: Domain Name System (DNS)
Follow @ASM_Educational (Domain Name System) The Internet’s system for converting alphabetic names into numeric IP addresses. For example, when a Web address (URL) is typed into a browser, DNS servers return the IP address of the Web server associated with that name. In this made-up example, the DNS converts the URL www.company.com into… Read more »
CompTIA Network+ | Microsoft MTA Networking: Networking Tools
Follow @ASM_Educational From Wikipedia A. Cable Tester- A cable tester is an electronic device used to verify the electrical connections in a cable or other wired assembly. Generally, a cable tester consists of: 1. A source of electric current 2. A volt meter 3. A switching matrix used to connect the current… Read more »
Amazon AWS DNS Records Types
Follow @ASM_Educational From Wikipedia Type Description Function A Address Record Returns a 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host,but it is also used for DNSBLs, storing subnet masks in RFC 1101, etc. CNAME Canonical Name Record Alias of one name to another: the… Read more »
CompTIA Network+ | Microsoft MTA Networking: DNS Records Types
Follow @ASM_Educational From Wikipedia Type Description Function A Address Record Returns a 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host,but it is also used for DNSBLs, storing subnet masks in RFC 1101, etc. CNAME Canonical Name Record Alias of one name to another: the… Read more »
CompTIA Linux+ Troubleshooting
In order to make troubleshooting as easy as possible, you should always use an organized methodology. Using simple best practices will do just that.
CompTIA Linux+ System Maintenance
In order to keep your Linux system running smoothly, it is vital to maintain it properly.
CompTIA Linux+ Administration
As with any other operating system, administration efforts are necessary for any linux system. These include the following tasks:
CompTIA Linux+ Configuration
Configuring your Xwindows No matter what desktop environment you chose, it is most likely that it will use the Xwindows architecture.
CompTIA Linux+ Installation
Media Linux installation can be done using a variety of different media. Each installation method has different pros and cons depending on the environment you have. Here are some examples:
CompTIA Linux+ Planning the Implemenation
Linux Uses Linux is a pretty flexible operating system. Although it has got a lot of credibility over the years as a stable server platform, it is also an excellent desktop platform. Databases, mail servers as well as many appliances can be installed.
CompTIA Linux+ What is Linux?
Linux is a 32 bit open source operating system. It is based on the very popular Unix operating system and it’s code is freely available (thus explaining the “open source” label as opposed to closed source where the code is not available freely).
Which IT Certification should I get first?
Follow @ASM_Educational Do You Have What It Takes for a Career in Technology? Information Technology (IT) has become such a widespread career choice. But few people actually know what IT is and what its discipline entails. The digital world may tempt you to jump on the information technology wagon. But is it the right choice… Read more »
CompTIA A+ | Microsoft MTA O/S: Training (Basic Windows OS Security Settings)
Follow @ASM_Educational Security Settings CompTIA A+ Exam objectives 2.6 (Compare and contrast the differences of basic Microsoft Windows OS security settings) User and Groups There are different levels of user accounts built into the Windows operating system. There are administrators, guests, and standard users. An administrator is the super-user of the Windows operating… Read more »
CompTIA A+ | Microsoft MTA O/S: Training (System Utilities)
Follow @ASM_Educational System Utilities CompTIA A+ Exam objectives 1.5 (Given a scenario, use Microsoft operating system features and tools.) What are system utilities? Utility programs are designed to carry out specific tasks. The tasks to be carried out are not typically performed by the operating system as part of its day to day operating of… Read more »
CompTIA A+ | Microsoft MTA O/S: Training (Server Roles)
Follow @ASM_Educational Server Roles CompTIA A+ | Microsoft MTA O/S: Exam objectives 2.5 (Summarize the properties and purposes of services provided by networked hosts.) What do server roles achieve? Server roles allow there to be more convenient or efficient options of doing specific tasks, such as accessing the internet, or using the printer. … Read more »
CompTIA A+ | Microsoft MTA O/S:Common Cloud Models
Follow @ASM_Educational Common Cloud Models CompTIA A+ | Microsoft MTA O/S: Exam objectives 4.1 Introduction to Cloud Computing Simply put, cloud computing is the delivery of computing services—including servers, storage, databases, networking, software, analytics, and intelligence—over the Internet (“the cloud”) to offer faster innovation, flexible resources, and economies of scale. You typically pay only for… Read more »
CompTIA Sec+ | Get Hired for a CompTIA Security+ Role: Interview Questions and Answers
How to prepare for CompTIA Network + Job? Questions Answers 1. What are some common cybersecurity threats and how would you defend against them? Common cybersecurity threats include malware, phishing, and ransomware. Defenses can include firewalls, antivirus software, and user education. 2. What is your experience with security tools such as firewalls, intrusion detection systems,… Read more »
CompTIA NET+ | Internet Message Access Protocol (IMAP)
IMAP Protocol IMAP stands for Internet Message Access Protocol. It is an application layer protocol which is used to receive the emails from the mail server. It is the most commonly used protocols like POP3 for retrieving the emails. It also follows the client/server model. On one side, we have an IMAP client, which is a… Read more »
CompTIA NET+ | Hypertext Transfer Protocol (HTTP)
HTTP The Hypertext Transfer Protocol (HTTP) is an application-level protocol for distributed, collaborative, hypermedia information systems. This is the foundation for data communication for the World Wide Web (i.e. internet) since 1990. HTTP is a generic and stateless protocol which can be used for other purposes as well using extensions of its request methods, error… Read more »
CompTIA NET+ | File Transfer Protocol (FTP)
File Transfer Protocol (FTP) The full form of FTP is File Transfer Protocol. It is a standard internet protocol provided by TCP/IP which is used for transmitting the files from one system to another system. The main purpose of FTP is for transferring the web page files from one system to the computer which acts… Read more »
CompTIA NET+ | Difference between Private and Public IP addresses
Difference between Private and Public IP addresses What is an IP Address? An IP address (Internet Protocol address) is a numerical identifier, such as 192.0.2.1, that is associated with a computer network that communicates using the Internet Protocol. An IP address is used for two purposes: identifying a host or network interface, and addressing a… Read more »
CompTIA NET+ | How to interview for CompTIA Network+ job ?
How to prepare for CompTIA Network + Job? Questions Answers 1. What are the different layers of the OSI model, and can you explain each one? The OSI model has seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. Each layer is responsible for specific functions in network communication. 2. What is subnetting,… Read more »
CompTIA NET+ | Server Message Block Protocol (SMB)
Server Message Block Protocol (SMB) The Server Message Block (SMB) Protocol is a Microsoft Windows protocol that allows users to share files, printers, and serial ports across a network. SMBv2 is the most recent version released with Windows Vista and has undergone more revisions under Windows 7. The IBM-developed Server Message Block protocol is a… Read more »
CompTIA NET+ | Virtual Private Network (VPN)
What is VPN in Computer Network? VPN stands for Virtual Private Network. It allows you to connect your computer to a private network, creating an encrypted connection that masks your IP address to securely share data and surf the web, protecting your identity online. A virtual private network, or VPN, is an encrypted connection over the… Read more »
CompTIA NET+ | Single Mode vs. Multimode Fiber Optic Cables
Single Mode vs. Multimode Fiber Optic Cables Many decisions come into play when installing fiber optic cabling. By far, one of the most important questions is whether to install single mode or multimode. This decision has huge implications for your network’s distance, bandwidth, and budget, so it’s vital to understand the differences between these two… Read more »
CompTIA NET+ | Network Time Protocol (NTP)
Network Time Protocol (NTP) NTP is an internet protocol that’s used to synchronize the clocks on computer networks to within a few milliseconds of universal coordinated time (UTC). It enables devices to request and receive UTC from a server that, in turn, receives precise time from an atomic clock. What Is NTP? “A man with… Read more »
CompTIA NET+ | Distinguish between Connection-Oriented and Connectionless Service
Distinguish between Connection-Oriented and Connectionless Service Connection-Oriented Services In a connection-oriented service, each packet is related to a source/destination connection. These packets are routed along a similar path, known as a virtual circuit. Thus, it provides an end-to-end connection to the client for reliable data transfer. It delivers information in order without duplication or missing… Read more »
CompTIA NET+ | Simple Network Management Protocol (SNMP)
Simple Network Management Protocol (SNMP) SNMP stands for Simple Network Management Protocol. It is an Internet-standard protocol for handling devices on IP networks. Devices that typically provide SNMP include routers, switches, servers, workstations, printers, modem racks, and more. It is used mainly in the network management framework to monitor network-attached computers for conditions requiring regulatory attention…. Read more »
CompTIA NET+ | Dynamic Host Configuration Protocol (DHCP)
Dynamic Host Configuration Protocol (DHCP) Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway. In DHCP, port number 67 is used for the server and 68 is used for the… Read more »
CompTIA NET+ | Generic Routing Encapsulation (GRE)
CompTIA NET+ | Generic Routing Encapsulation (GRE) Generic Routing Encapsulation (GRE) is a routing protocol developed by Cisco Systems in 1994 that allows a wide range of network-layer protocols to be contained inside virtual point-to-point or point-to multipoint links over an Internet Protocol network. Protocol encapsulation, not GRE specifically, breaks the layering sequence, according to… Read more »
CompTIA A+ | Microsoft MTA O/S: Different Motherboard Form Factors
Follow @ASM_Educational What are the Different Motherboard Form Factors? Microsoft MTA O/S | CompTIA A+ Exam objectives 1.2: sizes. Introduction to Motherboards A motherboard (MB), also known as a Mainboard, system board or logic board, is the central or primary circuit board in a Personal Computer (PC). It is an extremely complex electronic… Read more »
CompTIA A+ | Microsoft MTA O/S: Backup and recovery
Follow @ASM_Educational Backup and recovery procedures protect your data against data loss and reconstruct the data, should loss occur. When searching for a backup solution, you’ll find that there are two main types of backups: “file-level backup” and “image-level backup.” File-Level Backup File-level backups are the most common type of backup. This method has been… Read more »
CompTIA A+ | Microsoft MTA O/S: Training (Display Adapters and Monitors)
Follow @ASM_Educational Source by Wikipedia Monitor Connectors: · If you are using a Monochrome / CGA/ EGA monitor, it is a digital monitor and will have a DB-9 Male connector that plugs into a digital adapter. · If you are using a VGA/ SVGA monitor, it will have a male DB-15 connector that plugs into… Read more »
CompTIA A+ | Microsoft MTA O/S: Training (Laptop Buses)
Follow @ASM_Educational Source by Wikipedia A bus is a set of signal pathways that allow information to travel between components inside or outside of a computer. Laptop Buses PCMCIA or PC Card Personal Computer memory card international association is a type of bus use for laptops. There are different types of cards and you primarily… Read more »
CompTIA A+ | Microsoft MTA O/S: Training (Other Types of Bus)
Follow @ASM_Educational Source by Wikipedia A bus is a set of signal pathways that allow information to travel between components inside or outside of a computer. Other Types of Bus USB USB or Universal Serial Bus is an external bus that most popular form of bus use today USB is hot swappable USB can daisy-chain… Read more »
CompTIA A+ | Microsoft MTA O/S: Types of Buses
Follow @ASM_EducationalSource by Wikipedia A bus is a set of signal pathways that allow information to travel between components inside or outside of a computer. Types of Bus External bus or Expansion bus allows the CPU to talk to the other devices in the computer and vice versa. It is called that because… Read more »
CompTIA A+/Network+ | Microsoft MTA O/S / Networking: Straight-through, Crossover, and Rollover Wiring
Follow @ASM_Educational ComputerCableStore When talking about cable pinouts we often get questions as to the difference in Straight-through, Crossover, and Rollover wiring of cables and the intended use for each type of cable. These terms are referring to the way the cables are wired (which pin on one end is connected to which pin… Read more »
CompTIA A+ | Microsoft MTA O/S: MOD Advanced Computer Troubleshooting II
Follow @ASM_Educational Source Quizlet What are three common problem areas with laptops? Displays Storage devices and RAM Power and input devices What tasks are associated with verifying work order information? Troubleshooting What are the three possible areas that a technician must check for printer errors? The device Cable connection The… Read more »
CompTIA A+ | Microsoft MTA O/S: MOD Advanced Computer Troubleshooting I
Follow @ASM_Educational Source Quizlet Most often, what is the reason for a need for advanced troubleshooting? It means that the probable cause is difficult to diagnose What are the six steps of troubleshooting? Identify the problem Establish a theory of probable cause Test the theory to determine the cause Establish a plan… Read more »
CompTIA A+ | Microsoft MTA O/S: Binary and Hexidecimal Conversion Tutorial
Follow @ASM_Educational Source Learning About Computers What are binary numbers? The binary number system is when only two numbers are used – 0 and 1. It is also called base 2. The computer number system is base 2. Our number system is referred to as decimal or base 10 because we use 10 digits… Read more »
CompTIA A+ | Microsoft MTA O/S: How To Install a Power Supply
Follow @ASM_Educational Source Learning About Computers To install a power supply is really quite easy. It fits in the top back of the case. First, orient the holes on the power supply to those on the case. Then, place the unit in the space provided and slide it in until the screw holes are aligned…. Read more »
CompTIA A+ | Microsoft MTA O/S: Where should fingers be placed on the keyboard?
Source Computer Hope As you can see in the picture below, your left-hand fingers should be placed over the A, S, D, and F keys and your right-hand fingers should be placed over the J, K, L, and ; keys.
CompTIA A+ | Microsoft MTA O/S: -Thermal printer
Source: Adopted From www.computerhope.com 1. A thermal impact printer or electrothermal printer is a printer that uses heated pins to “burn” images onto heat-sensitive paper.
CompTIA A+ | Microsoft MTA O/S: -Inkjet printer
Source: Adopted From www.computerhope.com The most popular printer for home computer users that prints by spraying streams of quick-drying ink on paper. The ink is stored in disposable ink cartridges, often a separate cartridge is used for each of the major colors.
CompTIA A+ | Microsoft MTA O/S: LED Printer
Source: Adopted From www.computerhope.com Similar to a laser printer, LED printers are non-impact but use a light-emitting diode instead of a laser in the printhead.
CompTIA A+ | Microsoft MTA O/S: Laser printer
Source: Adopted From www.computerhope.com First developed at Xerox PARC by Gary Starkweather and released in 1971, a laser printer is a printer that utilizes laser technology to print images on the paper.
