Computer Networking

Yes, retry it the first time if it doesnt work. If you have problems ask me more questions if you want!

a. You can find a network adapter’s MAC address stamped directly onto the NIC’s (Network

Interface Card) circuit board or on a sticker attached to some part of the NIC.

b. It is possible for two NICs to share the same MAC address.

c. The first 24 bits of a MAC address are known as the OUI (Organizationally Unique

Identifier) and identifies the NIC’s manufacturer.

d. The last 24 bits make up the extension identifier or device ID and identify the device itself

ensuring that the data portion of the frame totals at least 46 bytes

A File Server

Domain Name System

Episode 83

use a cable or install "remote desktop".

Which two technologies can be used in distance vector routing protocols to prevent routing loops?

The networking protocol that uses a 32-bit address is an IP (Internet Protocol).

ipconfig / all

A soft reset - typically used for checking internet connectivity or making the connection faster - is accomplished by unplugging the power cord on the router for about 30(thirty) seconds, then plugging the cord back in. A hard reset - Resets passwords, keys, and other configured options (In other words, this type of reset WILL restore it to FACTORY DEFAULT) - is accomplished by keeping the router powered on, and finding the RESET button on the back of the router. Then, using a paperclip or the tip of a pen, pushing in on this button and HOLDING it for about 30(thirty) seconds. After doing this, your router will usually require a minute or two to boot back up and start working again, where you can enter a new password or key.

Fine Living Network ended in 2010.

If you mean broadband internet, you'll need a broadband modem (usually provided by your ISP), a length of cable, and a network interface card (commonly called a "network card" or "NIC"). If you're trying to set up more than one computer to access your internet connection, you'll have to get a router or a network hub, which will split the internet traffic to each machine (which also need a NIC and a piece of cable). Alternately, if you're attempting to set up a wireless network, you can skip the cables and replace "router or network hub" with a wireless version of same. Each machine which you want to access the network must have a wireless network adapter installed (setting up the network can require a bit of tinkering as well).

bridging loop means layer 2 loop. which is due to redundant paths in the layer 2 network . It is avoided by implementing the STP (spanning tree protocol) .

You have to pass the ADM201 exam.

This examination cost $200 and you can register through webassessor.com

Passing it though is not that easy, although all questions are covered in the help and training of Salesforce which is available free in their website, most aspirants still have to enroll a $3000 course on Administration Essentials - yet, not all of them always pass.

You have to review a lot on your own. See sources below.

Class A, B and C Based on the split of the 32 bits, an IP address is either Class A, B or C, the most common of which is Class C. More than two million Class C addresses are assigned, quite often in large blocks to network access providers for use by their customers. The fewest are Class A networks, which are reserved for government agencies and huge companies. Although people identify the class by the first number in the IP address (see table below), a computer identifies class by the first three bits of the IP address (A=0; B=10; C=110). This class system has also been greatly expanded, eliminating the huge disparity in the number of hosts that each class can accommodate (see http://www.answers.com/topic/cider). See http://www.answers.com/topic/private-ip-address-technology and http://www.answers.com/topic/ip-technology. NETWORKS VERSUS HOSTS IN IPV4 IP ADDRESSES Maximum Maximum Number ofClass Number Hosts Bits used in Number of per Network/Host Class Range Networks Network ID ID A 1-126 127 16,777,214 7/24 B 128-191 16,383 65,534 14/16 C 192-223 2,097,151 254 21/8 127 reserved for loopback test Networks, Subnets and Hosts An IP address is first divided between networks and hosts. The host bits are further divided between subnets and hosts. See subnet mask.

When one wants to connect multiple LAN segments together, the point-to-multipoint type of remote wireless bridge is used. The connection avails the network resources.

Preboot Execution Environment (PXE)

At the very least, the default gateway and the primary DNS server. These two can be set or provided automatically by a DHCP host.

A NIC operates at those two layers.

In order for you to flash the dreambox you need the program "Dream UP" and you need the image you want to flash on the dreambox. First you need to turn off the receiver, than to connect it to your computer than to start the receiver, and to enter in program "Dream UP" to add your iamge and to click on the flash button.

A typical IP address takes the form of 256.256.256.256 - Each IP address is unique - and identifies a single computer connection.

This is something that needs to be fixed / changed on the site's server, not your computer. There is nothing wrong with your computer; there is something wrong with the site you are visiting.

Use nslookup or dig

Using coax, you just do one long cable run, rather than with twisted pair where you do an individual run for each computer/terminal.

Problem? coax's max is 10 Mbit/s, and every computer has to take turns accessing the coax.

Using 10 Mbit/s twisted-pair, each computer has its own, dedicated connection to the hub/switch/router, so you're not slowed down when more than one comptuer wants access.