3. networks quick quiz IB 12 qs

Extra digit added to numerical data that is used to check data , integrity after input, transmission, storage and processing.

• check digit

• check sum

• data packet

• ISDN

links two or more computer systems within a limited geographical area, similar to LAN.

• WAN

• MU-LAN

• VLAN

• WLAN

Network communication method that creates and transmits small units of data, called packets, through a network, independently of the overall message.

• integrated services digital network

• packet switching

• data packet

• microwave transmission

International rules that ensure the transfer of data between systems.

• protocol

• packet switching

• networking

• rpacket

Communications protocols used to connect hosts on the Internet.

• TCP/IP

• FTP/WWE

• SSL/JPG

• HTTP/HTML

the following three are the most commonly used network components that play an essential part in the creation of a network:

• Hub, Switch and Router.

• cube, Switch and psp.

• server, Switch and client.

• MODEM, GPU and HTTP.

Can identify which network device is connected to which part. This allows the ____________ to transmit data to the exact port and network device for which it is intended.

• Hub

• Switch

• Router

• Server

A VPN provides a secure connection to employees of the company, while an extranet limits access to the company network to selected (authenticated) outsiders.

• True

• False

Which are benefits of using a layered network model?

A . it specifies how changes to one layer must be propagated through the other layers

B . A manufacturer can focus on technologies of a particular layer.

C . it focuses on details rather than general functions of networking

D . Makes protocol design easier.

E . Easy to manage.

• A and B

• B, D, and E

• A and C

• All of the above

The layers of the OSI model, from the top down, are:

• application, presentation, session, transport, network, data link, physical
• session, presentation, data transport, MAC, network, physical
• physical, data link, network, transport, session, presentation, application
• presentation, application, session, network, transport, data link, physical