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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

What is the Function Of HUB and Switch?

Hubs and Switches make 1 ethernet connection out of as many is on the hub or switch.

Change the number of packets sent in a ping?

To change the number of packets sent in a ping command, you can use the -c option followed by the desired number of packets. For example, in a terminal, you would type ping -c 5 [IP address or hostname] to send 5 packets. Adjust the number as needed to send more or fewer packets.

BPO interviews - self introduction?

This is one of the types of question that you may get at an interview; they are intended to get you to talk about yourself in a fairly informal manner. The questions are usually about some aspect of your own life so it is not possible for anyone else to answer them for you.

You should think carefully, before attending the interview, about such questions as this so as to be prepared when asked. There are several such questions and there is a great deal of information on the internet and elsewhere about techniques to employ when attending interviews.

What are the features of RS-232C?

RS-232C is a control code for typical use on audiovisual devices, although it can also be used on any device that has in-built logic and the RS232 interface, typically 9-pin D. Think of a typical IR handset for a domestic TV. It communicates with the logic in the TV to control functions: volume up; change channel etc. It does this through IR but the control is 1 way. If the handset was RS232, it would communicate hard wired and the control would be 2 way. Thus the TV could talk back to the handset and request a preferred volume level for each particular channel, for example.

RS 232 commands can be used in control devices that have significant processing power to create complex 'macros'. Such devices are normally restricted to high-end professional AV set ups but are increasingly finding their way into home automation systems. The RS232 commands have to be written into a bespoke programming language, instructing the control device to issue specific codes to the systems it is controlling. These codes are manufacturer specific and delivered in the content of the RS232 data stream.

What is the advantage of adding networks with a wildcard mask instead of using classful network addresses?

In OSPF, interfaces can be assigned to different areas. Many

times, a router will be routing inside of a major network, but different interfaces

will belong to different areas. You need the level of control given by wildcard

masks to assign different interfaces to their appropriate areas, and not restrict

an entire major network to be in one area.

What type of IDS solution to allow his sensor to stop unwanted activity and turning it into an IPS?

To transform an Intrusion Detection System (IDS) into an Intrusion Prevention System (IPS), you should implement a network-based IPS solution that can actively monitor and respond to threats in real time. This involves deploying sensors that not only detect malicious activity but also take automated actions, such as blocking traffic, dropping packets, or reconfiguring firewalls to stop unwanted activity. Additionally, integrating threat intelligence and machine learning can enhance the system's ability to identify and mitigate threats effectively.

How many binder groups are in a 100 pair copper cable?

A 100 pair copper cable typically contains five binder groups, with each binder group containing 20 pairs of wires. These binder groups are used to organize and manage the pairs within the cable, facilitating easier installation and maintenance. Each binder group is usually color-coded for identification.

What is the definition of packet marking in networking?

If we are sending a file in one go and if some error occurred in between the file transfer then the complete file has to be resend which wastes the bandwidth so to prevent this, the file to send is divided in to smaller unit which we call packet, and then send packets 1 by one so that if a packet is lost then we need to send only that particular packet not the complete file. As the packet reaches its destination, the destination source send acknowledgement to the sender that the packet has reached to it and it may send the next packet and if packet somehow lost before reaching to the destination source, then the sender itself resends the packet after a fixed amount of time.

What is a WHR-G54S Buffalo device?

A WHR-G54S Buffalo device is a wireless router. Wireless routers are used by many people in home to establish a wireless network connection to the internet.

Advantage of point to point protocol?

Point-to-Point Protocol (PPP) is used to set up a connection between two nodes. The advantage of Point-to-Point Protocol is that you can have several protocols running, one after the other, on the same wire.

Is a fiber optic cable a cheaper alternative to other cables?

"At companies such as Best Buy, fibre optic cables range in price. They can cost anywhere from around twenty five dollars up to sixty dollars. These are more expensive than many of the other cables sold under the same sub-heading."

WhAT layer support flow control and sequencing?

Flow control and sequencing are primarily supported at the Transport Layer (Layer 4) of the OSI model. Protocols such as Transmission Control Protocol (TCP) implement flow control mechanisms to manage data transmission rates and ensure reliable delivery of packets in the correct order. This ensures that the sender does not overwhelm the receiver and that data is received in the sequence it was sent.

Is it possible to connect to another computer in remote desktop through dial up?

First Reply:<I take it you don't have a router. If you bought one you could run your dial up through an into that then run other PC's off it. Or just get broadband its not even that expensive these days.>

Second Reply: <I do have a router andI do have broadband. But I also have built in bluetooth on my computer. I use it to connect to the internet through dial up on my cell phone. The reason I asked this is because I wanted to access my desktop from anywhere. And yes, I have the port forwarding set up through my router. It works when I connect through Broadband.>