WorksheetsUnit 2.1 IGCSE Data Transmission
Total questions: 20
Worksheet time: 12mins
What type of transmission is used in walkie-talkies?
Simplex
Full Duplex
Half Duplex
Complex
Why is parallel data transmission faster than serial data transmission?
Because multiple channels are used in parallel data transmission.
Because multiple bits are sent over a single channel in parallel data transmission.
Because data might be skewed in serial data transmission slowing the rate of transmission.
None of the other answers are correct.
What type of transmission is used to transfer data from computer to printer?
(a)
What type of transmission is USB?
Synchronous parallel transmission
Asynchronous serial transmission
Asynchronous parallel transmission
Synchronous serial transmission
Which of the following correctly represents the data 1101011 if odd parity is used?
01101011
11101011
11010110
11101011
In which of the following methods, is an ACKNOWLEDGEMENT sent to the sender for error-checking?
Automatic Repeat Request
Checksum
Echo Check
The types of transmission that devices can use are:
Serial and Parallel
Simplex
Duplex
Full Duplex
--------- transmission is when multiple bits of data are sent at the same time along different channels in the same cabling
(a)
In a half duplex transmission two way communication is possible, it is not possible to transmit in both directions at the same time
TRUE
FALSE
Which Transmission device is the newest technology?
Serial Port
Parallel Port
Universal Serial Bus (USB)
Which of the following are methods for error detection?
Parity Check
Data Check
Echo Check
Checksum
What is an Automatic Repeat Request ARQ used for?
Data Checking
Error checking
Check Digit
Encrypting data
Which of the following is not part of the Data Packet?
Router
Trailer
Payload
Packet Header
What does the Packet Header contain?
Destination address
A Packet Number
Senders address
Packet switching
How big is a packet of transmitted data normally?
64gb
64 Kib
128Kib
512mb
A network .......... can be defined as the connection point among network devices such as routers, printers, or switches that can receive and send data from one endpoint to the other.
CPU
Node
RAM
USB
What does a router do?
A router is something that helps plan your car destination from A to B
A router allows the wifi to extend around your house
A router takes data packets from devices and directs them to the right place.
It tells the ROM chip on a computer to Fetch Decode and execute instructions
