Recent questions tagged network

by Pataballa sravani asked Mar 28, 2021 0 views

N resistors of each of resistance R when connected in series offer an equivalent resistance of 50 ohm and when reconnected in parallel the effective resistance is 2 ohm the value of R is

by anonymous asked Jan 8, 2021 13 views

State four features of Wi-Fi.
Answer : Wi-Fi 1. Wi-Fi stands for wireless fidelity. 2. Wi-Fi typically provides local network access for around a few hundred feet with speeds of up to 54 Mbps. 3. Wi-Fi based on IEEE 802.11 standards. 4. High Capacity Load Balancing 5. Scalability 6. Network Management System...

by anonymous asked Jan 8, 2021 14 views

Explain handoff procedure in mobile communication.
Answer : Assume that there is a call going on between two parties over a voice channel. When the mobile unit moves out of coverage area of a particular cell site the reception becomes weak. Then the cell ... arranges the handoff requests in a queue instead of rejecting them, if the new cell sites are busy....

by anonymous asked Jan 8, 2021 27 views

Explain the architecture of Bluetooth technology with suitable diagram.
Answer : Bluetooth is short range wireless technology. Range of Bluetooth is 10 meters. Bluetooth Architecture defines 2 types of networks. 1)Piconet 2)Scatternet Piconet: - It is a Bluetooth network that ... . This node is called bridge slave. This node cannot be the master of two piconets. ...

by anonymous asked Jan 8, 2021 17 views

Compare peer to peer network and server based networks.
Answer : Peer to Peer Network Server Based Network It is a decentralized management It is centralized management It is easy to set up & no administrator required It is complex to set ... client has less power. Uses less expensive computer hardware. It is hardware intensive. ...

by anonymous asked Jan 8, 2021 13 views

State the need for computer networks. 
Answer : Need for computer network: File/Folder Sharing Hardware Sharing (Resource sharing) Application sharing User Communication (Email, Remote Access)...

by anonymous asked Jan 8, 2021 17 views

It is desired to connect five computers that are joined at a single point called central node. i) Draw the setup. ii) Name the topology. iii) State two advantages and disadvantages of this topology.
Answer : i. Setup:  ii. Name of topology: Star topology iii. Advantages of Star Topology 1) As compared to Bus topology it gives far much better performance, signals don't necessarily get ... as well number of nodes which can be added in such topology is depended on capacity of central device. ...

by anonymous asked Jan 8, 2021 19 views

State the functions of i. Repeater ii. Switch iii. Gateway iv. Bridges
Answer : i) Repeater: Repeaters are used to take the distorted, weak and corrupt input signal and regenerate this signal at its output. It ensures that the signals are not distorted or weak before it ... and decides whether to forward or discard it. It sends packets between two networks of same type....

by anonymous asked Jan 8, 2021 19 views

Explain four features of computer networks.
Answer : A computer network is interconnection of two or more computers connected to each other so that they can exchange information such as e-mail, messages or documents, or share resources such as disk storage or printer. ... Digital Network (ISDN). 4. Cable TV. 5. Digital Subscriber Line (DSL). ...

by anonymous asked Jan 8, 2021 10 views

Give two features of IPv6. 
Answer : Two features of IPv6 are: An IPv6 address consists of 16 bytes (octets) It is 128 bits long. IPv6 specifies hexadecimal colon notation. Therefore, the address consists of 32 hexadecimal ... multicast. In an IPv6 address, the variable type prefix field defines the address type or purpose....

by anonymous asked Jan 8, 2021 9 views

Define Protocol and Encapsulation.
Answer : i. Protocol: Protocol is defines as the set of rules and regulations to communicate between layers in networking. OR It is set of rules and conventions sender and receiver in data communication ... of encapsulation. OR Encapsulation is the process of adding the headers and footers to the data....

by anonymous asked Jan 8, 2021 11 views

State the reason for keeping uplink and downlink frequency different in satellite communication.
Answer : Uplink frequency is used for transmission of signals from earth station transmitter to satellite. Downlink frequency is used for transmission of signals from satellite to earth station receiver. ... the same antenna to be used for both receiving and transmitting simplifying satellite hardware....

by anonymous asked Jan 8, 2021 10 views

State two advantages of Mesh topology.
Answer : Network Topology refers to layout of a network. Network topology specifically refers to the physical layout of the network especially the locations of the computers & how the cable is run ... to Point Connection: Point-to-point links make fault identification and fault isolation easy. ...

by anonymous asked Jan 8, 2021 16 views

State features of any one network control devices. 
Answer : A hardware device that are used to connect computers, printers, fax machine and other electronic devices to a network are called network devices. These devices transfer data in a fast, ... transforms incoming analog signals into their digital equivalents. A two way communication is established....

by anonymous asked Jan 8, 2021 9 views

Enlist different types of servers.
Answer : Different types of servers are: Definition of server: The central computer which is more powerful than the clients which allows the clients to access its software, database is called as the server. Types of server: 1. File server 2. Print server 3. Application server 4. Mail server...

by anonymous asked Jan 8, 2021 7 views

Enlist different types of computer networks on the basis of their geography. 
Answer : Classification of networks based on geography LAN - Local Area Network MAN - Metropolitan Area Network WAN - Wide Area Network CAN - Campus Area Network PAN - Personal Area Network...

by anonymous asked Jan 8, 2021 32 views

Explain Satellite communication with neat diagram
Answer : SATELLITE COMMUNICATION: In satellite communication, signal transferring between the sender and receiver is done with the help of satellite. In this process, the signal which is basically a beam ... of satellite: Satellite television digital cinema satellite radio satellite internet access ...

by anonymous asked Jan 8, 2021 14 views

Give the name of protocols used by different layers of TCP/IP. Discuss the function of ARP and RARP.
Answer : TCP/IP Model contains following layer. 1) Host-to-Network Layer - It defines characteristics of transmission media. It also concern with delivery of data when two systems are attached to same network ... such broadcasts are not forwarded by routers, so a RARP server is needed on each network. ...

by anonymous asked Jan 8, 2021 16 views

Explain the function of each layer of OSI reference model with neat diagram.
Answer : OSI model (open system interconnection) model was developed by ISO (international standard organization) Function of OSI model: i. It provides way to understand how internetwork operates. ... Network virtual terminal file transfer access and management mail services and directory services ...

by anonymous asked Jan 8, 2021 11 views

Explain following: I. Telnet II. FTP 
Answer : 1. Telnet: TELNET is abbreviation for Terminal Network. It is standard TCP/IP protocol for virtual terminal services proposed by ISO. TELNET enables establishment of connection to a remote system in such ... . FTP uses port 21 for the control connection and port 20 for the data connection. ...