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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

Can you explain server hardware details?

Answer

I'll start with the basics, others should expand as needed.

It is easiest to explain a server by telling how it is different from a client computer.

A server is expected to remain on all the time. Due to this requirement, a true server will have completely redundant hardware. This means all the hardware will come in pairs, and if one piece fails, the other piece will continue working until the first piece is replaced. One notable technique is RAID, which has spilled over into regular computers.

RAID stands for Redundant Array of Independent Disks. In one configuration, all data is written twice, on separate drives. One drive acts as backup to the other. Another configuration that is more complicated involves splitting the data up between different drives, and adding a little extra data that allows all the data to be recreated if one drive should fail. There exist many more RAID configurations than can be brought up here.

RAM: Random Access Memory is used that has error control capabilities built into it. It is also typically redundant if dedicated server hardware is used.

Power supplies, CPUs, and RAM are typically paired, with one ready to completely run the server if the other fails. Also, a greater emphasis is placed on reliability, rather than on speed.

Does the engine computer control the transmission going into limp mode or is there a computer specifically for the transmission on 1995 Dodge Stratus ES?

this vehicle has a separate transmission control module locatedright next to the engine control module. The TCM will put go into limp mode if one of the solenoid circtuits or other inputs are missing. it tests the solenoids in the solenoid pack every ten seconds by either turning them on or off for a couple of miliseconds and then looking for the electrical inductive kick that would be caused by this. if the inductive kick is missing the the TCM will shut down the TCM power relay and the vehicle will default to 2nd gear only. if the fault is intermittent, turning the vehicle off and then on again will reset the TCM. AND APPARANTLY THE TCM'S IN THIS VEHICLE ARE PLAUGED WITH PROBLEMS. even when a new ( rebuilt ) TCM is ordered from the dealer ( new not avail anymore ) they still have problems with the l/r solenoid circuit driver. ther have been cases of techs needing to install as many as 7 rebuilt TCM's before finding one that isn't internally faulty. THANKS DODGE!!

What do you do when firewall blocks internet access?

When firewall blocks internet access you can cancel this function or reinstall your antivirus software.

What are three advantages of wireless over wired technology?

1. You can take it wherever you want

2. You don't have to worry about buying wires(it saves $)

3. You don't have to clean up mess of wires!!!

-------------------------------------------------------------------------------------

1.) Anytime, anywhere connectivity

( not always true there's probably no connectivity in the wilderness, jungle , etc. )

2.) Easy and inexpensive to install.

3.) Ease of adding additional devices.

Take an example subnet graph with weights indicating delay between nodes Now obtain routing art each node using distance vector routing algorithm?

#include<stdio.h>

#include<conio.h>

#include<string.h>

void min(int[],int,int[][],int);

void main()

{

int s[20][20],i,j,n,ne[20][20],k=0,d[20],z[20][2],e[20];

char nam[20],r;

clrscr();

printf("enter no.of routers in the subnet:");

scanf("%d",&n);

printf("Enter the adjacency matrix\n");

for(i=0;i<n;i++)

for(j=0;j<n;j++)

scanf("%d",&s[i][j]);

printf("Which routers routing table you want to construct:");

scanf(%c",&r);

printf("the neighbours of c are:",r);

for(i=0;i<n;i++)

if(s[r-65][i]==1)

{

printf("%c",i+65);

nam[k++]=i+65;

}

printf("\n");

for(i=0;i<k;i++)

{

printf("Enter %c%c delay:",r,nam[i]);

scanf("%d",&d[i]);

}

for(i=0;i<k;i++)

{

printf("\n Enter %c's routing table \n",nam[i]);

for(j=0;j<n;j++)

scanf("%d",&ne[i][j];

}

for(i=0;i<n;i++)

{

for(j=0;j<k;j++)

e[j]=ne[i][j]+d[j];

min(e,k,z,i);

}

clrscr();

printf("To");

for(i=0;i<k;i++)

printf("%c\t",nam[i]);

printf("NEW TABLE FOR %c ",r);

printf("\n");

for(i=0;i<k;i++)

printf("......");

printf("..............");

for(i=0;i<n;i++)

{

printf("\n");

printf("%c|",i+65);

for(j=0;j<k;j++)

printf("%d\t",ne[j][i]);

if(r==(i+65))

printf("0\t-);

else

{

printf("%d\t",z[i][0]);

printf("%c\t",nam[z[i][1]]);

}

}

}

void min(int e[20],int k,int z[20][2],int i)

{

int b;

z[i][0]=e[0];

z[i][1]=0;

for(b=1;b<k;b++)

if(e[b]<z[i][0])

{

z[i][1]=0;

for(b=1;b<k;b++)

if(e[b]<z[i][0])

{

z[i][0]=e[b];

z[i][1]=b;

}

}

Where is the port for adding R134A on a 1996 Buick Regal 3100?

it is under the air filter box. take out the 4 screws that hold the top to the bottom, then remove the top of the air box. use a 10mm socket on the bolt next to the battery and take off the bottom. then you will see the a/c accumulator. the port is right there. hope it helps.

What are the example of software adaptive maintenance?

Adaptive Maintenance (Software) is maintenance that allows software to adapt to a change in the system or system environment. Adaptive maintenance does not provide new capabilities.

Adaptive Maintenance (Software) is maintenance that allows software to adapt to a change in the system or system environment. Adaptive maintenance does not provide new capabilities.

Does a phone jack connect to a Wii Lan adapter?

No, only to a broadband connection (one of those Internet boxes).

Can blue and green AV cables work in red and white?

They do indeed work, so long as the jacks are the same and you match the same color code to each end.

What kind of wireless adapter do i need to pick up signal 1000 to 1200 feet from router?

it depends on the type of signal you are trying to connect to. the newest CISCO wireless n

adapters can pickup wireless N signals from about 500 feet away.

How do you monitor IPSec?

To test the IPSec policies, use IPSec Monitor. IPSec Monitor (Ipsecmon.exe) provides information about which IPSec policy is active and whether a secure channel between computers is established.

How do you choose a final year project?

In university, you may be expected to do a final year project. How exactly you do this depends on the course so you should consult a member of your institution.

How many IP Addresses can a system have?

AnswerAnswer

If you are using the same ISP or Internet Service Provider for all of your computers they will all have the same IP address to get information to and from the internet, however, each device will also have an internal ip address which will be limited to the same number as the normal 4.3 billion.

How can you connect counter strike 1.6 on lan to your friend give answer in step?

1. Make sure you have a wireless reuter close by and that both or all people are connected to it with reasonable signal strength.

2. have one person create a lan server

3. have others connect to it in the find server menu under the LAN Tab

Kinds of routers?

What kind of router should I buy for xbox 360 live using cable modem?

Do wireless usb adapters work with any wireless router?

yes it does not matter what kind of interface you use for connecting to PC that usb card implements a wifi and every wifi router standards based of course must work

My DS says the Sky Router WEP key is wrong?

Are you sure the Sky Router is using WEP? The default is WPA, which a regular DS cannot decrypt.

What is the transmission of messages and files via a computer network called?

If you are taking a test as part of some computer science course...i am willing to bet that they want you to say e-mail or electronic mail but...i think that way of asking it does have a certain level of ambiguity

What does parity do in transmission?

It is a simple form of verification, that data has not been corrupted. In even parity, a ninth bit is added to 8 bits of data, so that the total number of 1's is even. Data is then transmitted. If a single bit becomes corrupted - a 0 gets changed to a 1, or a 1 to a 0 - the receiver can figure this out.

Are most PS3 games server based or peer to peer?

They are predominantly p2p, however a server is usually utilized to connect users or chat pre-game.