Why is it best not to have the seeial port UART performing parity checking?
if the stop bits does not appear when it is supposed to, the UART considers the entire word to be garbled and will report a framing error ..
Integrated Services Digital Network (ISDN) is a digital, point-to-point network capable of transmitting speeds of about 2Mbps. A computer connects to an ISDN line via an ISDN adapter and uses the same type of wiring as a Telephone wire. The only difference is ISDN can carry analog (voice) and digital signals, so it can be used to connect to the Internet. It can be connected by the phone company but it is rarely used as it needs special equipment and is more expensive than other way.
What is max no of hops in hypercube network to go from one node to another?
This depends on if you are using hubs or switches.
What happens when you end a disconnected session running on the remote server?
All unsaved data are lost.
Difference between core switch and normal swtich?
hi this is kittu 23 18 26
What are core and edge switches and why should you care? A core switch is a backbone device, a switch that is central to your network's successful operation. You use it to connect to servers, your Internet service provider (ISP) via a router, and to aggregate all switches that your company uses to connect crucial pieces of equipment that your company can't afford to lose to downtime. As a result, your core switch should always be a fast, full-featured managed switch.
edge switches, on the other hand, connect client devices, such as laptops, desktops, security cameras, and wireless access points, to your network. For this reason, edge switches generally are considered less crucial than core switches to a network's smooth operation. If there are areas of the office such as a conference room where you don't need the features of a fully managed switch, your company can save some money by installing smart switches, such as the Cisco 200 Series, or even unmanaged switches for use at the edges of your network.
Which statement accurately describes a switch with all access ports assigned to the same VLAN?
Performance is increased by keeping all users in the same Layer 2 network
Why is it logical to organize IT applications by functional area?
In an organization the function areas are different and the most common function areas to any organization are finance, marketing, human resources, client services, operations, administration and IT support etc. So for each of these function areas we need different task to perform. And to perform these different tasks we need different applications and software. And thus it is logical to organize IT applications by functional areas.
Why telnet unable to connect to remote host connection refused?
The most likely reason is that there is no telnet daemon running on the computer. Other reasons may be that you are connecting on the wrong port, or your client is on the hosts.deny list.
Jam signal
Is 'ping' a client server application?
Sort of. The DOS ping command is a general ethernet command that sends a query to a specified IP address.
You can perform a self-ping to see if your network card is working by going to the Start menu and selecting 'Run'. Type 'command' in the text box to bring up the DOS emulator screen. Type 'ping 127.0.0.1' and press enter to ping yourself.
You can ping any other address on your local network (including your router) or on the Internet in the same way, as long as you know the IP address. This will tell you if that device (router, computer, server) is responding.
ARPAnet.
What are the Advantages and disadvantages of star networking?
A star network provides good performance, is easy to install and expand. Failures out in the network don't tend to impact other nodes (unlike ring networks, for example, which fail completely when a node goes down or else require elaborate double-ring schemes to cope). A classically-cited disadvantage is that it's "expensive to install" and quite a bit of hardware (e.g. hubs/switches) is required. If you look at ethernet though (the king of modern networks more due to economy than to efficiency), it tends lend naturally to star configuration.
How do you connect a wireless router if you have no CD drive?
Routers do not need any CD in order to connect to it. If you mean that you do not have a driver for the wireless adapter you get it from the manufacture website (Netgear, Linksys and so on).
Distance vector routing in c program?
#include<stdio.h>
int main()
{
int n,i,j,k,a[10][10];
printf("\nEnter the number of nodes: ");
scanf("%d",&n);
for(i=0; i<n; i++)
{
for(j=0; j<n; j++)
{
printf("\nEnter the distance between the host %d%d:", i+1,j+1);
scanf("%d",&a[i][j]);
}
}
for(i=0; i<n; i++)
{
for(j=0; j<n; j++)
printf("%d\t",a[i][j]);
printf("\n");
}
for(k=0; k<n; k++)
{
for(i=0; i<n; i++)
{
for(j=0; j<n; j++)
{
if(a[i][j]>a[i][k]+a[k][j])
a[i][j]=a[i][k]+a[k][j];
}
}
}
for(i=0; i<n; i++)
{
for(j=0; j<n; j++)
{
b[i][j]=a[i][j];
if(i==j)
b[i][j]=0;
}
}
printf("\nThe output matrix is:\n");
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
printf("%d\t",b[i][j]);
printf("\n");
}
return 0;
}