Best Comptia Network+ Questions

The Best Comptia Network+ Questions examples!

QUESTION 1

The network install is failing redundancy testing at the MDF. The traffic being moved is a mixture of multicast and unicast signals.Which of the following would BEST handle the rerouting caused by the break of service?

Dynamic Host Configuration Protocol

The DHCP Is a protocol used in a network to help configure the parameters needed for devices to communicate such as IP addresses. The DHCP configures these parameters automatically so that a network administrator would not have to configure each device statically on a network. The DHCP

An overview about Routing Tables

A Routing Table is a database within a router, storing and updating  addresses of other network devices and providing the most efficient routes. It is used for directing traffic.

When working with a Layer 3 device, like a router, it is important  to understand how the traffic is

Wireless Standards

IEEE 802.11 is a set of media access control (MAC) and physical layer specifications for implementing wireless local area network (WLAN) computer communication. The first version was created in 1997 by the Institute of Electrical and Electronics Engineers (IEEE)

The Basics Of TCP/IP

The possibility of sending programs and data between computers via computer networks is a vital matter for almost every computer user. However building the universal network that meets requirements of all users is practically impossible.

A deep vision into Routing Information Protocol

The RIP is one of the oldest distance-vector routing protocol which employs the hop counts as a routing metric. This protocol prevents routing loops by implementing a limit on a certain amounts of hops allowed in the path from source to destination.

Network Troubleshooting Model

As a Network Administrator, Troubleshooting in an efficient and effective way is key to resolving many of the wide array of issues that can occur day to day.
For many offices, it is imperative  that services and systems run optimally and consistently,

Network Intrusion Detection And Prevention Systems

The 21st century business is hinged on information and communication network infrastructure for efficiency and to ease end-to-end business processes. For this reason and strictly from a fundamental point of view, it is extremely important that measures are taken to mitigate both internal and external threats to the network and devices within.

Firewalls for the Common User

A Firewall is a built in protection system for computers.
The firewall is there as a first line of defence to protect a computer from unwanted intruders.
For the home user the most lightly entry point for unwanted snoopers  to a home system is via the Internet.

Common Port Numbers - An explanation about

Port 20/21: FTP (File Transfer Protocol)

FTP is used for the transfer of files over a computer network. It is one of the most commonly used file transfer protocols within private networks and also the Internet. Port 20 is used for the credentials of the data and port 21 is used to actually transfer the data.

Routing Protocols - Explained and Examples

A routing protocol discovers other routers and advertises the best pathway of communication between routers throughout the network, enabling any two nodes to communicate in a computer network. Protocols such as RIP, OSPF or EIGRP are the responsible for sharing information about their neighbors and the type of topology of the network.

Spanning Tree Protocol Explained

Spanning Tree Protocol (STP) was invented by Dr. Radia Perlman whilst she worked for Digital Equipment Corporation (DEC) based on an algorithm she designed to eliminate loops in computer networks which became her thesis at MIT. Her thesis was “Network Layer Protocols with Byzantine Robustness” submitted to the Massachusetts Institute of Technology (MIT) in August 1988.

Network Topologies Explained

Network Topology is the arrangement of numerous elements of a computer network and maybe depicted physically or logically. Physical topology is the putting together of a number of components of a network, including cable installation and device location and the logical part shows how data moves through a network irrespective of its design.

How to Replicate DNS Zones



The first thing you need to do is to be sure that all your servers have DNS enabled.

Oracle box VM - How To



How to deal with:  ‘’Fatal: no bootable medium found! System Halted’’

 

It is common for this error to appear when setting or initializing your virtual machine. Here are the simple steps to troubleshoot this issue.

The Most Popular and FREE Windows Applications

In this topic we are going to be talking about free Windows applications such as web browsers, documents, text editors, image visuals, media players, music managers, voice chat, bit torrent client, compression, screen streaming, screen recording, audio tools, video tools, other tools and utilities.

Computer Virus and Related Terminologies

Virus: Vital Information Resources Under Siege
Everyone who has a computer, laptop, tablet or mobile phone has probably heard of computer viruses and the importance of protecting their devices against possible virus infections! Malware is a generic term for different subgroups of various types of computer virus. The reason they are divided into different groups is because of the various ways they attack our computing devices.

Malware Milestones



By definition, Malware is a piece of software which is designed to destroy, damage or take ownership and privileges to access a computer system. Since ARPANET was developed (Advanced Research Projects Agency Network) on August 30, 1969, malware has been deployed to disrupt legacy systems. Today, these threats are much more sophisticated and powerful.

Command Line Commands - Linux and DOS



Before Graphical User Interfaces, operating a computer was done via text based commands and prompts. MS-DOS was an operating system which seemed to just sit waiting, its cursor blinking, eager for a line of input from the user who would first have to know what could be done and second, how exactly to go about doing it.

The best educational web sites

Coursera.org is a venture funded to make money. It’s an educational technology company that offers a wide range of online courses. Coursera works in tandem with colleges and other establishments to ensure most of their courses are easy to access online. Coursera are offering courses in business, social sciences, physics, biology, mathematics, digital marketing, humanities, engineering, data science, computer science and medicine among others.

Home Computer Maintenance



Like all things IT there are two sides to computer maintenance, the hardware side and the software side.

The hardware consists of the physical components of a computer, for example the computer tower or box which contains the electronics that are needed to run the computer and the monitor or screen, keyboard and mouse.

Why My Computer is Running Slow?



One of the most frustrating things to happen when using a PC is when your PC is running slowly. There are many reasons why this is happening to your PC and this article will explain why and how to prevent this from happening.

All you need to know about an Antivitus program



Antiviruses are crucial to a healthy computer. Many people want to put harmful programmes and virus’s on your personal or work computer for many reasons ranging from using your pc to perform tasks to generate money without you knowing, Stealing information from you like bank card details  and passwords, to shut down a network or even just to prove its possible to get past certain security.

Evolution of the Processor



1971
Intel launched its first microprocessor, the 4004. The first commercial product to use a microprocessor was the Busicom calculator 141-PF.

How DNS Works

The Domain Name System (DNS) arranges opportunities to connect to web sites, Email and web systems by mapping domain names to IP (Internet Protocol) addresses. These IP addresses are represented as numbers and letters. EG: 192.168.50.254 (IPV4) or 2001:503:A83:0:25:55 (IPV6).

Why My Computer Freeze All The Time?

IT is estimated that   75%  of small businesses find a crashed Computer more problematic than a sick employee.

Yet when a person gets sick the first reaction is to phone a Doctor but with a computer asking for help is not the first reaction  most people’s first response is to perform some act

12 Of The Best IT Jobs To Boost Your Career

We all know the pain of looking for a job, lucky for some IT guys its not really that hard as there has always been a high demand for someone who actually knows what they’re doing when sitting at a computer trying to solve an issue and not just turning it off and back on again and with the IT department growing massively over the last couple of years,

IPv4-vs-IPv6

 

More and more often, at least in terms of browsing websites, you may come across comprehensive information that the IPv4 address pool is shrinking and needs to be replaced with the IPv6 protocol. These IPv symbols you may also come across if configuring a home router, laptop or network devices and servers. What does these abbreviations mean and what is the impact on an ordinary user?

Top CompTIA Certifications 2017

CompTIA A+
To obtain the CompTIA A+ certification the candidate must pass two exams: The CompTIA A+ 220-901 and CompTIA A+ 220-902. The exams covers PC hardware and peripherals, mobile device hardware, introduction to networking, troubleshooting hardware and networks, configuring operating systems such as Windows, Linux, Android, Apple OS.

How to set up a Local Area Network in Oracle's VirtualBox

Oracle VirtualBox is a very good application for beginners to use when starting off in their networking skills. For most people this will seem a daunting task but if you follow this step by step guide you should be able to create your own Local Area Network using Oracle VM.

Best Motherboards Options for 2017

As it’s the start of the New Year, this for many means new PC’s or its time to upgrade their current systems. Here is a list of some of the best options motherboards to date as long as their socket types and chipsets too! I will begin with some Intel Motherboards. I will also include some pictures and videos of the motherboards listed making you decide which one you like the most!

Google Search Engine Tips

When you think of an online search engine, you think Google. In a time when you  can log on to the internet and find out anything you want to know about any topic you can think of,Google has been there to help. From the beginning Google’s mission statement is “to organise the world’s information and make it universally accessible and useful.”

Best Windows Utilitites for Network Troubleshouting

PING
I am sure most people have spent some time in an office environment or has had any dealings with computers has heard the term (ping). If you are like me you dismissed the term as technobabble, not realising that this is one of the most important and fundamental network utilities for troubleshooting network issues.

PC Cooling Methods

Computer cooling is required to remove the excess heat generated by computer components in order to keep them working.  These days' computer components are designed to generate as little heat as possible but depending on an individual’s setup there may be more heat generated than the PC can handle and this can cause problems ranging

Microsoft Certification Path For Windows 2016

First step to become an IT Guru is to have a number of Microsoft certifications for example like MCSA, MCSE, MCSD, MCSM.

MCSA (Microsoft Certified Solutions Associates)

This Certification (MCSA)  focuses on the ability to design and build technology solutions. This program is for people who seek entry-level jobs in IT. MCSA is a prerequisite for more advanced Microsoft certifications.

Information Technology Courses in Educational Training Boards 2017

The Educational Training Boards (ETB) offer a range of courses in Information Technology (IT)  at their training centres nationwide.

 

Prospective students can choose general entry level courses covering topics introducing Office Computer Applications which require very little experience or knowledge of IT to JAVA , Oracle and  Microsoft specific courses.

How to Use Oracle Box For Virtualization



Before installing Oracle Box, be sure to go to your BIOS and ensure that Virtualization Support is enabled. After you install Oracle Box, click the start menu and select all programs. Scroll down until you see Oracle Box and double click to start the program. When you first start Oracle Box, you should see a window like this one pop up:  

Best CPU's 2017

Intel have officially announced the seventh-generation of Core processors, also known under the name of Kaby Lake, designed for desktop computers. Today’s new generation is opened by two models of quad core, Core i7-7700K and Core i5-7600K. Intel, however is increasing its range, for example, Core i7-7700, Core i7-7700T, Core i5-7600K, Core i5-7600, Core i5-7600T or Core i3-7350K.

Cisco Certification Levels

The Cisco Certification Levels offer five different levels of network certification, Entry, Associate, Professional, Expert and Architect the highest level of accreditation within the Cisco Career Certification program.

CCNA – Cisco Certified Network Associate

In a world of information technology certificates your possibilities are vast. If you are interested in networking and already have a CompTIA N+ certificates this course might be ideal for you as its goes into much greater detail. 

Best Jobs sites in Ireland

Job hunting can be very frustrating and time-consuming. One has to be ready to get turned down for a few jobs, and in some cases you never hear anything back from some of the applications but it is always good to keep hope alive as there would eventually be the opportunity to land one’s dream job at some point.

Top Hardware Web Sites 2017




IF you are looking into building a PC or just like to keep up on the latest in computer hardware tech, the internet delivers a lot of options when it comes to computer hardware. Here, you will see some of the better, more dependable sites on the internet. 

Best Antivirus Solutions 2017

Looking toward the security of your computer, an anti-virus software will detect and prevent unauthorized intrusions and malicious software from entering your machine. Originally, antivirus software was developed to only detect and remove viruses (malware that replicates by reproducing himself or infecting software, data files or the boot sector of the hard drive).

5 Best windows utilities for cleaning up the hard disk



Hard disks use space as more and more applications are downloaded, each item taking up a part of the memory and helping the drive reach full capacity. When your drive is full though there is only a few solutions to free up space and get rid of unwanted items.