Studied by 2 people
RFID chips
________ can be fitted to all equipment so that an alert will be triggered if it is removed from the premises.
Transmission layer
________= splitting outgoing data into packets and numbering them, a header containing a sequence number and a checksum is added to each.
FTP
________ (File Transfer Protocol)= rules for transferring files between computers, often used for transferring those that are too large for email attachment.
Internet network layer
________= stripping addresses information from incoming packet headers.
SMTP
________ (Simple Mail Transfer Protocol)= rules for sending emails from client to server and server to server until it reaches its destination.
Low latency
________- cables have layers of protective covering making them less susceptible to interference.
Transport layer
________= checking incoming packets and sending a resend request for any that are damaged or lost.
Poor security
________- anyone within range can intercept transmissions.
Application layer
________= providing the interfaces and protocols needed by the user.
circuit television
Closed- ________ (CCTV) can be used to monitor the premises.
Copper wire
________ is susceptible to electrical interference while fibre optic is immune.
IMAP
________ (Internet Message Access Protocol)= unlike POP, messages do not need downloading, they can be read and stored on the message server.
Permissions
________ are the levels of access to files.
POP
________ (Post Office Protocol)= used by a client to retrieve emails from a mail server, all emails are downloaded when there is a connection between them and are deleted from the server once done so.
Fibre optic
________ is more efficient however it is a lot more expensive and fragile.
correct order
The receiving computer reassembles the packets into the ________ using the packet headers.
HTTP
________ (HyperText Transfer Protocol)= rules followed by a web browser and web server when requesting and supplying information.
payload
The ________ contains part of the data of the file that has been split and sent.
box penetration
Black ________ testing= the tester is given absolutely no information about the network and must try and breach its security.
Radio waves
________ transmit data through air.
WAN
A network of networks- one connects separate LANS
Domain name
Human friendly IP address eg: www.google.com is a lot easier to use than a string of numbers
Quickest
Routers direct packets through the cheapest route to the next router, what does cheapest mean?
Bluetooth, Zigbee, RFID & NFC
Wi-Fi is the most well-known and the oldest but there are others that have different uses, ranges and power requirements
