Local Area Network

Yes, 3 levels: hardware, operating system, application

A modem. However, there is a card that can connect computers trough telephone or cable television lines, too.

presentation layer

im not really sure however it is called LAN for local area network. try asking that.

internetwork

Net BUI

Extranet

6.8.1: Skills Integration Challenge-Planning Subnets and

Configuring IP Addresses

Four: Generally it's Green(solid and striped), Orange(solid and striped), Blue(solid and striped), Brown(solid and striped)

A Passive Hub is just a connector. It connects the wires coming from different hubs. An active hub acts as a multiport repeater. Passive hub will not regenerate the signal but active hub will regenerate the signal ....... so active hub is better.

Disaster prevention is a proactive strategy focused on controls to ensure that a disaster does not happen. Disaster recovery focuses on controls in place in case a disaster does happen. How will the company recover from it to minimize damage done? Do they have backup resources and manpower to mitigate the effects of the disaster? This is thus a reactive strategy and works more in case of unpredictable disasters, such as natural disasters which cannot be prevented by man.

Layer 4 : Application Layer

Application layer defines TCP/IP application protocols and how host programs interface with transport layer services to use the network.

Protocols: HTTP,TELNET,FTP,SMTP,SNMP,TFTP,DNS etc.

Layer 3: Transport Layer

The purpose of Transport layer is to permit devices on the source and destination hosts to carry on a conversation. Transport layer defines the level of service and status of the connection used when transporting data.

Protocols: TCP and UDP

Layer 2: Internet Layer

Internet layer pack data into data packets known as IP datagrams, which contain source and destination address (logical address or IP address) information that is used to forward the datagrams between hosts and across networks. The Internet layer is also responsible for routing of IP datagrams.

Protocols: IP,ICMP,ARP,RARP,IGMP etc.

Layer 1: Network Access Layer

Network Access layer defines details of how data is physically sent through the network, including how bits are electrically or optically signaled by hardware devices that interface directly with a network medium, such as coaxial cable, optical fiber, or twisted pair copper wire.

Protocols: Ethernet,Token Ring, FDDI, X.25, Frame Relay etc.

Ethernet is a data link layer protocol - layer 2

Most twisted pair cable is limited to 100 meters, or 330 feet, before you need to add a repeater.

client/server network

A maximum of three co-located direct sequence system are possible because channels 1, 6, and 11 are the only theoretically nonoverlapping channels.

Yes, that is the reason network administrators use automatic addressing.

A non-routable protocol has less overhead and processing to do, and is more compact. This leads to faster transmission.

MeSuAx.exe. You will have to end the process tree by right clicking. If you try to end the process a pop-up will likely appear that says "access denied". Good Luck!

You mean 192.168.10?

The first usable IP in that network would be 192.168.10.1, and ending with 192.168.10.254.

The default subnet masks per class are:

class A 255.0.0.0

class B 255.255.0.0

class C 255.255.255.0

A hub uses straight throught cabling from clients to the hub, and uses a cross-over cable with the up-link ports to connect hubs to hubs.

Usually, the cabling is UTP (Unshielded Twisted Pair) wiring.

True

Network+ Guide to Networks 5th Edition p370-371

This would be UDP. The User Datagram Protocol. It has no error checking or correction or congestion measures.