communication

Question 1

what is the definition of a network

Answer 1

it is a collection of computers, servers and other network devices (nodes) connected to one another to allow the sharing of recourses and data

Question 2

what is the definition of the internet

Answer 2

it is a global computer network providing information and communication facilities consisting of many interconnected networks

Question 3

what is the definition of a network topology

Answer 3

a network topology is the arrangement of nodes (computers or routers etc.) and of the connections between them that make up a network.

Question 4

what is a data packet

Answer 4

a data packet is a formatted unit of data that is transmitted over a packet switching network

Question 5

what is a protocol

Answer 5

a protocol is an agreed format or set of rules which allows differing networked devices to communticate

Question 6

what is the definition of connectivity

Answer 6

it is methods of connecting devices to each other in order to transfer data, including cabling and wireless

Question 7

what are the four different types of networking topology’s

Answer 7

MESH, STAR, RING, BUS

Question 8

What is circuit switching

Answer 8

it is a networking technology that provides a dedicated link between two nodes, during the connection, no other data can be transmitted along the same route.

Question 9

what is packet switching

Answer 9

packets take different routes to the destination. when all the packets arrived, the data is re assembled. (The internet is an example of a packet switching network)

Question 10

what is routing

Answer 10

it is the method of selecting paths along which packets are sent on a computer network.

Question 11

what dose a IP address do

Answer 11

it is used as a unique identification of computer systems on a network

Question 12

what is a DNS ( Internet Domain Name System )

Answer 12

it matches IP addresses to computer system resources

Question 13

what is a TCP protocol

Answer 13

IP sets out the format of packets and an addressing system. TCP allows packets to be sent and received between computer systems

Question 14

what is HTTP protocol

Answer 14

Used to transfer multimedia web pages over the internet

Question 15

what is FTP protocol

Answer 15

it is used when copying a file from one location to another via a network or the internet

Question 16

what is a protocol stack

Answer 16

it is a set of protocols that work together to provide networking capabilities

Question 17

what is are the 5 layers of 5 layers protocol

Answer 17

application, transport, network, data link, physical

Question 18

what is application in the 5 layers protocol

Answer 18

HTTP ( hypertext transfer protocol), SMTP (simple mail transfer protocol), FTP (file transfer protocol), applications that use the transport layer to send requests to connect to remote hosts

Question 19

what is transport in the 5 layers protocol

Answer 19

TCP(Transmission control protocol is responsible for making sure data is sent and received in the correct order

Question 20

what is network in the 5 layers protocol

Answer 20

IP(internet protocol), is responsible for the addressing and routing of data.

Question 21

what is Data link in the 5 layers protocol

Answer 21

Ethernet protocol sends data from the network layer to the physical layer in data frames comprising of a link layer header and a packet

Question 22

what is physical in the 5 layers protocol

Answer 22

physical connection using NIC to connect to the internet

Question 23

What is a ethernet protocol

Answer 23

standards for dat formats for transmission using frames and packets and for networking cabling (physical layer) and transmission speeds

Question 24

what is a Wi-Fi protocol

Answer 24

standards for transmitting data using electromagnetic waves in place of wires including *)”.11 and Bluetooth

Question 25

what is WAP’s (wireless application protocols )

Answer 25

standards for the use of wireless devices on the internet