Cable Operator

Again, companies want to hire people who are passionate about the job, so you should have a great answer about why you want the position. (And if you don't? You probably should apply elsewhere.) First, identify a couple of key factors that make the role a great fit for you (e.g., “I love customer support because I love the constant human interaction and the satisfaction that comes from helping someone solve a problem"), then share why you love the company (e.g., “I’ve always been passionate about education, and I think you guys are doing great things, so I want to be a part of it”).

A receiver receives a signal before it becomes too weak or corrupted,regenerates the original bit pattern,and puts the refreshed copy back onto the link.It operates on phycal layer of OSI model.

This question seems simple, so many people fail to prepare for it, but it's crucial. Here's the deal: Don't give your complete employment (or personal) history. Instead give a pitch—one that’s concise and compelling and that shows exactly why you’re the right fit for the job. Start off with the 2-3 specific accomplishments or experiences that you most want the interviewer to know about, then wrap up talking about how that prior experience has positioned you for this specific role.

First of all, be honest (remember, if you get this job, the hiring manager will be calling your former bosses and co-workers!). Then, try to pull out strengths and traits you haven't discussed in other aspects of the interview, such as your strong work ethic or your willingness to pitch in on other projects when needed.

One of the main causes of congestion is that traffic is often busy. If hosts could be made to transmit at a uniform rate, congestion would be less common. Another open loop method to help manage congestion is forcing the packet to be transmitted at a more predictable rate. This is called traffic shaping.

a. Session Layer

b. Presentation Layer and

c. Application Layer

The protocols defined in transport layer are

• TCP

• UDP

This question will give you insight into how people handle technology products with which they have less expertise. What steps would they take to overcome a knowledge gap and ensure they still get things done on time?

This is a toughie, but one you can be sure you'll be asked. Definitely keep things positive—you have nothing to gain by being negative about your past employers. Instead, frame things in a way that shows that you're eager to take on new opportunities and that the role you’re interviewing for is a better fit for you than your current or last position. For example, “I’d really love to be part of product development from beginning to end, and I know I’d have that opportunity here.” And if you were let go? Keep it simple: “Unfortunately, I was let go,” is a totally OK answer.

In stop and wait ARQ, the sender sends a frame and waits for an acknowledgement from the receiver before sending the next frame.

A network in which there are multiple network links between computers to provide multiple paths for data to travel.

It is a simple protocol used to exchange information between the routers.

A technique called piggybacking is used to improve the efficiency of the bidirectional protocols. When a frame is carrying data from A to B, it can also carry control information about arrived (or lost) frames from B; when a frame is carrying data from B to A, it can also carry control information about the arrived (or lost) frames from A.

It is an authentication service developed at the Massachusetts Institute of Technology. Kerberos uses encryption to prevent intruders from discovering passwords and gaining unauthorized access to files.

In this all computers are connected in loop.

Advantages: All computers have equal access to network media, installation can be simple, and signal does not degrade as much as in other topologies because each computer regenerates it.

A protocol is a set of rules that govern all aspects of information communication.

World Wide Web is a repository of information spread all over the world and linked together.It is a unique combination of flexibility,portability,and user-friendly features .The World Wide Web today is a distributed client-server service,in which a client using a browser can access a service using a server.The service provided is distributed over many locations called web sites.

A method for providing fault tolerance by using multiple hard disk drives.

The correction of errors is more difficult than the detection. In error detection, checks only any error has occurred. In error correction, the exact number of bits that are corrupted and location in the message are known. The number of the errors and the size of the message are important factors.

Multiplexing is of three types. Frequency division multiplexing and wave division multiplexing is for analog signals and time division multiplexing is for digital signals.