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Computer Networking

Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.

18,810 Questions

How can I search a MAC address on an extreme Network switch?

at the prompt type in...

show iparp

It will print off a list of MAC, IP address, and ports.

What is multicasting?

There are three possible ways of data communication among computers:

1) broadcasting - ONE computer to ALL computers

2) unicasting - ONE computer to ONE computer

3) multicasting - ONE computer to A GROUP of computeres

as we discuss above that multicast means their is a group in a company and we have to send a mail to a particular group then we use a multicast network ...

and another example of multicast is ,In digital television broadcasting, to send multiple standard TV (SDTV) programs in the allotted bandwidth, rather than one high-definition TV (HDTV) program.

What is your gateway address?

The gateway address is your router's inside local address. To find what your gateway and IP are you can open a Command Prompt (CMD) window and type "ipconfig/all" without quotes. Make sure you run the Command Prompt as an administrator when you open it.

Describe the architecture of an ATM network?

ATM Architecture

As in the case of many large systems, there are a range of components and connections involved in the ATM networks. Figure 2 shows an example network architecture. All connections in the ATM network are point-to-point, with traffic being switched through the network by the switching nodes. Two types of networks are included in the ATM architecture, Public Networks and Private Networks. Private Networks, often referred to as Customer Premises Networks, are typically concerned with end-user connections, or bridging services to other types of networks including circuit switched services, frame relay, and voice subsystems. The interface between the components in the Private Networks is referred to as the Private User Network Interface (UNI). ATM also extends into the wider area Public Networks.

Interfaces between the Public and Private network switches conform to the Public UNI. Interfaces between the switches within the Public network are the Network Node Interface (NNI). Specifications for both the Public and Private UNI can be found in the ATM Forum's publication "ATM User-Network Interface (UNI) Specification." The private networks often permit the use of lower speed short haul interconnects that are useful in LAN environments, but not of great use in wider area public networks. Three types of NNI have been developed, NNI-ISSI that connects switches in the same Local Area Transport Area (LATA), the NNI-ICI, that connects ATM networks of different carriers (InterCarrier), and finally, a Private NNI that permits the connection of different switches in a private network.

( www.cellsoft.de/telecom/atmconcepts.htm)

How can you use special in IP curve?

Go to settings, go to controls, on the left there's a little icon for each color, you can choose a special power there (for that color).

What is router bypassing?

Router is Bypassing to, system Network local Network and Internet or Network

Regards

NASEER

What circumstances indicate that data caching should be disabled?

If you server configs change frequently and you want to filter each request using the most up-to-date criteria.

What is the default bandwidth allocation for the network-control forwarding class?

The default Class of Service (CoS) settings have 95% of the bandwidth set for queue number 0 (best effort), and 5% for queue number 7 (network-control).

Are proxies safe?

They are very safe.

Not completely safe but more then enough-

Why network hub is not a intelligent device?

A network is a collection of computers connected with each other. Two or more computers can be connected to form a network. A HUB is used a central point for all the connections of a network. Normally, we use twisted pair cables in LAN and if we are using the star topology of LAN then we use HUB. Every computer is connected to HUB with a separate cable and then the HUB is connected to Server if the LAN is based on a Domain structure. A domain is such a network in which all the communication is done by a central computer, called server. But if we have a workgroup where there is no central computer all the computers are connected with HUB and there is no uplink to server.

HUB is not intelligent device so it does not examine the network traffic. Collision

occurs when there is high traffic on the network. In Local Area Network (LAN)

HUB is available in different number of port. 8 port, 16 ports or 24 ports. One port is used to connect one computer. If our network consists of 30 computers and we have 16 ports HUB then we have to use two HUBS to form the network.

Now a days, switches are also used to replace HUB. HUB send data to whole network and the destination picks up the desired data where the switch sends data directly to the destination.

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How do you answer why you want to be a trainer?

You need to answer why you want to be a trainer by explaining what interests you have in the job. You also should list what types of strengths you have for the job.

Decimal numbers into their equivalent binary numbers?

#include #include
void main()
{
int a[20],b,c,d,i=0;
printf("Enter a decimal no. to convert it into binary no.");
scanf("%d",&b);
c=b;
while(b>0)
{
d[i]=b%2;
i++;
b=b/2;
}
i--;
printf("\nBinary equivalent of decimal no. %d is ",c);
while(i>=0)
{
printf("%d",d[i]);
i--;
}
getch();
}

What are the functions of computer hardware on networking?

Some are for the effective transmission of data from one point to another (routers, hubs, etc) some are for physical protection of the network like a firewall, others like servers and mainframes are for data storage.

Name the interior IP routing protocol that send the mask with routing update?

Most modern routing protocols send information about the network mask. In the Cisco Academy, we learn about several protocols that do, and don't, include information about the network mask; those who don't do so, don't allow VLSM (subnets of different sizes).

RIP v.1: No
RIP v.2: Yes
IGRP: No (marked as "obsolete" in the new version of the Cisco curriculum)
EIGRP: Yes
OSPF: Yes
IS-IS: Yes (I believe so; we don't study this in detail)

Most modern routing protocols send information about the network mask. In the Cisco Academy, we learn about several protocols that do, and don't, include information about the network mask; those who don't do so, don't allow VLSM (subnets of different sizes).

RIP v.1: No
RIP v.2: Yes
IGRP: No (marked as "obsolete" in the new version of the Cisco curriculum)
EIGRP: Yes
OSPF: Yes
IS-IS: Yes (I believe so; we don't study this in detail)

Most modern routing protocols send information about the network mask. In the Cisco Academy, we learn about several protocols that do, and don't, include information about the network mask; those who don't do so, don't allow VLSM (subnets of different sizes).

RIP v.1: No
RIP v.2: Yes
IGRP: No (marked as "obsolete" in the new version of the Cisco curriculum)
EIGRP: Yes
OSPF: Yes
IS-IS: Yes (I believe so; we don't study this in detail)

Most modern routing protocols send information about the network mask. In the Cisco Academy, we learn about several protocols that do, and don't, include information about the network mask; those who don't do so, don't allow VLSM (subnets of different sizes).

RIP v.1: No
RIP v.2: Yes
IGRP: No (marked as "obsolete" in the new version of the Cisco curriculum)
EIGRP: Yes
OSPF: Yes
IS-IS: Yes (I believe so; we don't study this in detail)

Why did cannabis change from class C to class B?

Cannabis has serious consequences and only recently have people found out how bad it actually is.