CompTIA Network+ Common Security Threats

Posted filed under CompTIA Network+.

Source mc mcse Certification Resources     DoS (Denial of Service) – A DoS attack is a common type of attack in which false requests to a server overload it to the point that it is unable to handle valid requests, cause it to reset, or shut it down completely.

CompTIA Network+ Methods of User Authentication

Posted filed under CompTIA Network+.

Source mc mcse Certification Resources     PKI (Public Key Infrastructure) – A public key infrastructure (PKI) is the combination of software, encryption technologies, processes, and services that enable an organization to secure its communications and business transactions.

CompTIA Network+ Question of the week

Posted filed under CompTIA Network+, Network+ Questions.

Network+ Question

 Several users from the finance department report that they are able to access the Internet, but unable to connect to their financial applications. The network technician is unable to ping the finance server. The technician decides to check the switch and determines that Internet access is working. Which of the following is a possible cause… Read more »

CompTIA Network+ Network Access Security

Posted filed under CompTIA Network+.

Source mc mcse Certification Resources     ACL (Access Control List) – An ACL is a table in an operating system or network device (such as a router) that denies or allows access to resources.

CompTIA Network+ Firewalls

Posted filed under CompTIA Network+.

Source mc mcse Certification Resources     Application Layer vs. Network Layer – An application layer firewall works at the application layer of a protocol stack.

CompTIA Network+ Hardware Tools

Posted filed under CompTIA Network+.

Source mc mcse Certification Resources     Cable Testers – Cable testers are electronic devices used to test a cable’s integrity by checking for opens and shorts which can cause connectivity problems.

CompTIA Network+ Question of the week

Posted filed under CompTIA Network+, Network+ Questions.

Network+

You have been asked to assist a small business owner connect his new laptop computer to his existing wireless network. Several computers throughout the location are connecting to the network using 802.11a, but the owner’s new laptop computer cannot connect. What is the most likely reason why?

CompTIA Network+ OSI model

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The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to their underlying internal structure and technology.

CompTIA Network+ Install components of Wiring Distribution

Posted filed under CompTIA Network+.

Vertical Cross Connect – is a location within a building where cables originate and / or are terminated, reconnected using jumpers or pass throughs or are connected to patch panels or other similar devices where the locations are from upper or lower floors in the building.

CompTIA Network+ Command Line Interface Tools

Posted filed under CompTIA Network+.

Traceroute – A command-line troubleshooting tool that enables you to view the route to a specified host. This will show how many hops the packets have to travel and how long it takes. In Windows operating systems, the command used is “tracert”.