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Networking question pdf

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Download basic networking questions with asnwers for interviews. Start learning adhoc wireless networks, backbone networks and protocol for internet. Networking questions and answers with explanation for interview, freshers can download Networking quiz questions with answers as PDF files and eBooks. Networking Interview Questions updated on Apr 1. Define Network? A network is a set of devices connected by physical media links. A network is.


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Top Networking Interview Questions & Answers. 1) What is a Link? A link refers to the connectivity between two devices. It includes the type of cables and. Download basic networking interview questions and answers pdf for freshers and experienced which explain all networking concepts and commands ppt. Common Interview Questions for Computer. Networking and Information Security Majors. Interviewing with companies for IT positions, whether large or small.

Add the sections together using 1's complement arithmetic c. PLZ send me basic networking interview questions October 7, Reply. Need a pdf October 18, Reply. Please send me full pdf. Plz send me question paper October 21, Reply. Application Layer.

Application Layer. Which layers are network support layers? Data link Layer and c. Network Layers. Which layers are user support layers? Session Layer b. Presentation Layer and c. What is Pipelining?

In networking and in other areas, a task is often begun before the previous task has ended. This is known as pipelining. What is Piggy Backing? 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.

What are the two types of transmission technology available? What is Bandwidth? Every line has an upper limit and a lower limit on the frequency of signals it can carry. This limited range is called the bandwidth. What is subnet? A generic term for section of a large networks usually separated by a bridge or router. What is MAC address? What is multiplexing? Multiplexing is the process of dividing a link, the phycal medium, into logical channels for better efficiency.

Here medium is not changed but it has several channels instead of one. What is simplex? It is the mode of communication between two devices in which flow of data is unidirectional. What is half-duplex? It is the mode of communication between two devices in which flow of data is bi-directional but not at the same time. What is full duplex? It is the mode of communication between two devices in which flow of data is bi-directional and it occurs simultaneously.

Here signals going in either direction share the capacity of the link. What is sampling? It is the process of obtaining amplitude of a signal at regular intervals. What is Asynchronous mode of data transmission?

It is a serial mode of transmission. In this mode of transmission, each byte is framed with a start bit and a stop bit. There may be a variable length gap between each byte. What is Synchronous mode of data transmission?

In this mode of transmission, bits are sent in a continuous stream without start and stop bit and without gaps between bytes. Regrouping the bits into meaningful bytes is the responsibility of the receiver. What are the different types of multiplexing? Multiplexing is of three types. Frequency division multiplexing and wave division multiplexing is for analog signals and time division multiplexing is for digital signals.

What are the different transmission media? The transmission media is broadly categorized into two types i Guided media wired i Unguided media wireless. What are the duties of data link layer? Data link layer is responsible for carrying packets from one hop computer or router to the next. The duties of data link layer include packetizing, adderssing, error control, flow control, medium access control.

What are the types of errors?

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Errors can be categorized as a single-bit error or burst error. A single bit error has one bit error per data unit. A burst error has two or more bits errors per data unit. What do you mean by redundancy? Redundancy is the concept of sending extra bits for use in error detection. Three common redundancy methods are parity check, cyclic redundancy check CRC , and checksum.

Define parity check. In parity check, a parity bit is added to every data unit so that the total number of 1s is even or odd for odd parity. Simple parity check can detect all single bit errors.

It can detect burst errors only if the total number of errors in each data unit is odd. In two dimensional parity checks, a block of bits is divided into rows and a redundant row of bits is added to the whole block. Define cyclic redundancy check CRC. C RC appends a sequence of redundant bits derived from binary division to the data unit.

The divisor in the CRC generator is often represented as an algebraic polynomial.

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What is hamming code? The hamming code is an error correction method using redundant bits.

Networking Questions and Answers

The number of bits is a function of the length of the data bits. By rearranging the order of bit transmission of the data units, the hamming code can correct burst errors. Define stop and wait ARQ. In stop and wait ARQ, the sender sends a frame and waits for an acknowledgement from the receiver before sending the next frame. What do you mean by network control protocol?

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Network control protocol is a set of protocols to allow the encapsulation of data coming from network layer protocol that requires the services of PPP. What do you mean by CSMA? To reduce the possibility of collision CSMA method was developed. What do you mean by Bluetooth? It is a wireless LAN technology designed to connect devices of different functions such as telephones, notebooks, computers, cameras, printers and so on.

What is IP address? The internet address IP address is 32bits that uniquely and universally defines a host or router on the internet. The portion of the IP address that identifies the network is called netid. The portion of the IP address that identifies the host or router on the network is called hostid.

It is the method used to solve the channel allocation problem. It is used for: It is of two types: Pure aloha 2. Slotted aloha.

What is Firewalls? PPP is like the data link layer protocol only. Used for connection over the synchronous and asynchronous circuits. Multipoint configuration is used for the purpose of broadcasting.

What we called as the broadcasting network. Multipoint configuration also used in multicasting. Users can give their views in the comment section if they wish to add other important questions. My Education is B.

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