Archive for October, 2009
CCENT Exam: Implementing a Wireless Network
The following list describes what you will need to know about implementing a wireless network for the ICND1 Exam. Need to consider topology, distance, and Access Point Location ADHOC Mode – Does not require an AP. Uses IBSS – Independent Basic Service Set Infrastructure Mode – Connects to an AP. BSS – Basic Service Set. [...]
CCENT Exam: Securing a Wireless Network
The following list describes what you will need to know about securing a wireless network for the ICND1 Exam. WEP – Wired Equivalent Privacy Rogue Access Point – an access point that is installed to interfere with an existing WLAN. The most common type is when an employee brings in their own Access Point and [...]
Learn About Wireless LANs For The CCENT Exam
Listed below is a summary of what you will need to know about WLANs for the ICND1 Exam. One of the main reasons to install a Wireless LAN is cost reduction. Another reason is because it allows employees to move their computers to different locations in the office and it requires no moving of cables [...]
CCENT Exam: How Does a Switch Work
The following will describe how a switch in a local area network works: Switches start with an empty table A computer plugged into the switch sends data trying to get to another computer The switch receives this frame and puts the senders MAC Address in its table Because the switches table is empty it then [...]
CCENT Exam: Layer 2 Switches
10BaseT – Is the most common type of ethernet cabling – Has a max distance of 100 meters Hubs – don’t look at the frame or analyze of of the data. They just repeat the signal to every port on the hub. Switches break up collision domains Switches do not break up broadcast or multicast [...]
Learn How to Convert an IP Address to Binary For The CCENT Exam
The best way to learn how to convert and IP Address to binary is to watch someone. So rather then me trying to explain to you in words how to do it… watch this short video! Related Topics: ICND1 Study Guide – The Fastest Way To Get Cisco Certified Guaranteed!
What You Need To Know About Local Area Networks For The CCENT Exam
LAN – (Local Area Network) – A network that is in a single geographical location. A LAN is made up of: Computers and Servers Routers and Switches Network Cables Protocols – Ethernet Protocols, IP, ARP, RARP, DHCP LANs allow us to share files, applications, and devices like printers. Sizes of LANs SOHO – Small Office [...]
Understanding Layer 2 Switches For The CCENT Exam
There are many different types of cabling, but the most common is 10baseT which has a maximum distance of 100 meters. If you want to extend your network beyond 100 meters you will have to put in some type of repeater because after 100 meters the signal because unreadable. Back in the day people would [...]
Learn About The Transport Layer For The CCENT Exam
There are two protocalls that operate in the transport layer: TCP and UDP. TCP Is reliable and connection oriented Breaks data into segments Numbers the segments through sequencing Assembles the segments at the destination Resends segments if lost UDP Is connectionless and does not verify UDP just sends the data and hopes it gets there. [...]
What You Need To Know About DNS For The CCENT Exam
DNS stands for Domain Name System. DNS coverts logical address into IP Addresses automatically A logical address can be a website address like www.google.com or a computer name on a local network like bobs_computer. If you were on the same local network as Bob you could connect to his computer by typing bobs_computer and the [...]