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WorksheetsIGCSE - Unit 2 - Communications and Internet
Total questions: 96
Worksheet time: 2hrs 31mins
Name
Class
Date
1.
The internet is a network of networks.
a)
True
b)
False
2.
Which of the following items of hardware connects different networks together?
a)
Router
b)
Server
c)
Dongle
d)
Firewall
3.
Which of the following locates resources on the internet?
a)
IP addresses
b)
Computer names
c)
WPA codes
4.
Which of the following is an example of a generic top level internet domain?
a)
com
b)
ac
c)
co
d)
sch
5.
Address on the servers that translate Domain Names
a)
DNS
b)
IP
c)
Gateway
d)
Subnet Mask
6.
Language used by Browsers to display Websites
a)
Protocol
b)
html
c)
smtp
d)
www
7.
Data broken into small pieces to be sent faster to its destination
a)
URL
b)
packets
c)
Internet
d)
DNS
8.
Gmail, Google Docs, Facebook, Dropbox, and Edmodo are all examples of:
a)
IP address
b)
client
c)
modem
d)
the cloud
9.
Internet access is free
a)
True
b)
False
10.
HTML document containing hypertext links users can click to access different locations.
a)
Web page
b)
Domain name
c)
Client Program
d)
Operating system
11.
Which connection type is a wireless method of sending information using radio waves?
a)
Wi-Fi
b)
Cable
c)
Broadband
d)
Fiber-optic cable
12.
Which type of cable uses light pulses to send data?
a)
DSL
b)
3G/4G
c)
Broadband
d)
Fiber-optic cable
13.
Which technology allows both a URL and an IP address to refer to the same site?
a)
ISP
b)
GUI
c)
DNS
d)
HTML
14.
Which protocol do many browsers assume when entering a URL in the address field?
a)
.net
b)
.com
c)
ftp://
d)
http://
15.
An Internet Service Provider (ISP):
a)
is a Web page
b)
is a Web browser
c)
provides access to Internet
16.
What is a protocol?
a)
A method of transmission
b)
A computer that hosts websites
c)
A rule of communication
d)
A search engine
17.
What is the World Wide Web?
a)
A website we access for information
b)
A website that informs us about the internet
c)
The information available on the internet
d)
A spider's web
18.
How is the World Wide Web accessed?
a)
Using a web browser
b)
Using email
c)
Using VoIP
d)
Using Skype
19.
What name do we give to a computer that hosts websites?
a)
A service
b)
A protocol
c)
A webserver
d)
HTML code
20.
What does HTML stand for?
a)
Hyper Type Markup Language
b)
Hypertext Markup Language
c)
Hypertext Media Language
d)
Hydrofoil Transport Media Line
21.
_______ link computers within a department, building or campus.
a)
TCP/IP
b)
modem
c)
local area network (LAN)
d)
plug-ins
22.
Cookies are small files that websites leave on their visitors' computers.
a)
True
b)
False
23.
Data transfer interface could be...
a)
Parallel and perpendicular
b)
Parallel and serial
c)
Serial and Continuos
d)
Serial parallel and continuous
24.
Serial transmission is also known as
a)
mega-byte serial transmission
b)
binary-code serial transmission
c)
bit-serial transmission
d)
serial transmission
25.
Parallel transmission is used
a)
for long distance communication
b)
for convert the parallel data into serial data
c)
for short distance communication
d)
None
26.
All the bits of data are transmitted simultaneously on separate communication lines
a)
In serial transmission
b)
In communication transmission
c)
In parallel transmission
d)
In transfer transmission
27.
In order to transmit n bits, n wires or lines are used.
a)
In parallel transmission
b)
In serial transmission
28.
In serial transmission, the various bits of data are transmitted serially one after the other.
a)
True
b)
False
29.
Characteristics of synchronous exchange
a)
Past time exchange
b)
Sender and receiver
c)
Real time exchange and requester waits for an answer
d)
None
30.
Characteristic for asynchronous exchange:
a)
Processes working independiently
b)
Processes working dependiently
c)
None
d)
Both
31.
This picture represent...
a)
Parallel communication
b)
Serial communication
32.
¿Digital or analogue?
a)
Digital signal
b)
Analog signal
c)
None
33.
Fill in the missing word:
The _______ of the data transmission (in one ______ only or in both _______).
The _______ of the data transmission (in one ______ only or in both _______).
a)
method
b)
direction
c)
travel
34.
Fill in the missing word:
The _______ of transmission.. (how many bits are sent at the same time).
The _______ of transmission.. (how many bits are sent at the same time).
a)
rules
b)
direction
c)
method
35.
Fill in the missing word:
The method of _________ between the two devices.
The method of _________ between the two devices.
a)
synchronisation
b)
agreement
c)
travel
36.
Data transmission needs to be agreed between the sender and the _____
a)
end
b)
person
c)
receiver
37.
The term for one direction only data transmission is:
a)
Complex data transmission
b)
Simplex data transmission
c)
OneDir data transmission
d)
SinglePlex data tranmission
38.
Data can travel where is needs to go and back again, but not at the same time. This is called:
a)
Duplex
b)
Quarter Duplex
c)
Triplex
d)
Half Duplex
39.
Half Duplex data transmission means data can travel where is needs to go and back again, even at the same time.
a)
True
b)
False
40.
A and B can send and receive data simultaneously (at the same time). This is known as:
a)
Circular Duplex
b)
Double Duplex
c)
Full Duplex
d)
DuDuplex
41.
This prevents the data from being mixed up in Asynchronous data transmission
a)
check bit
b)
control bit
c)
start bit
42.
Full Duplex transmission is where:
a)
Data can only be transmitted in one direction
b)
Data can be transmitted in one direction at a time
c)
Data can be sent both ways at the same time
d)
A made up term to confuse us
43.
Half Duplex transmission is where:
a)
Data can only be transmitted in one direction
b)
Data can be transmitted in one direction at a time
c)
Data can be sent both ways at the same time
d)
A made up term to confuse us
44.
Simplex transmission is where:
a)
Data can only be transmitted in one direction
b)
Data can be transmitted in one direction at a time
c)
Data can be sent both ways at the same time
d)
A made up term to confuse us
45.
Parallel transmission is where
a)
1 bit is transmitted at a time
b)
Data can only be transmitted in one direction at a time
c)
8 bits are transmitted at the same time
d)
8 elephants are ridden at the same time
46.
Which of the following are examples of data being sent over the internet?
a)
Sending an email with an attachment
b)
Downloading music from the internet
c)
Watching Netflix
d)
All of the above
47.
Data being transmitted in an agreed bit pattern...
This is........................
This is........................
a)
Asycnhronous
b)
Simples
c)
Duplex
d)
Parallel
48.
Why is packet switching efficient?
a)
Small packets travel faster
b)
Some cables cannot handle larger packets
c)
Each packet is sent down the fastest route at that time
49.
Which of the following is not a transmission mode?
a)
Simplex
b)
Half-simplex
c)
Half-duplex
d)
Full-duplex
50.
Which best describes serial transmission?
a)
Sending bits of data one at a time over a cable
b)
Sending bits alongside each other?
51.
Which mode transmits in both directions at the same time?
a)
Full-duplex
b)
Half-duplex
c)
Simplex
52.
Which mode transmits in one direction only?
a)
Full-duplex
b)
Half-duplex
c)
Simplex
53.
Which device needs a full duplex transmission
a)
Mobile phone
b)
Printer
c)
Radio
54.
Which of the following requires a simplex transmission?
a)
Radio broadcast
b)
Skype call
c)
Mobile phone
55.
Transmission where data can only be sent in one direction only e.g. a computer to a standard monitor.
a)
Simplex
b)
Duplex
c)
Serial
d)
Parallel
56.
Data transmission in both directions simultaneously.
a)
Full Duplex
b)
Double Duplex
c)
Half Duplex
d)
Parallel Duplex
57.
The rules that specify how data is transmitted.
a)
Protocols
b)
Parallels
c)
Bandwidth
d)
Mulitiplexers
58.
The data transfer rate of a network.
a)
Bandwidth
b)
Broadband
c)
Capacity
d)
Topology
59.
Data transmission where data is transferred one bit at a time.
a)
Serial
b)
Parallel
c)
Simplex
d)
Half Simplex
60.
Data transmission where several bits of data (usually one byte) are transferred simultaneously.
a)
Parallel
b)
Serial
c)
Full Duplex
d)
Multi-Duplex
61.
What does USB stand for?
a)
Universal Serial Bus
b)
Universal Simplex Bandwidth
c)
Universal Serial Broadband
d)
Universal Simplex Bus
62.
Which of these is not a cable used to transfer data?
a)
HTTP
b)
USB
c)
HDMI
d)
UTP
63.
Which of these is not a network protocol?
a)
HTTP
b)
POP3
c)
Ethernet
d)
HDMI
64.
Before sending data over a network it is divided into small chunks named?
a)
Packets
b)
Blocks
c)
Bytes
d)
Packages
65.
What communication is Half Duplex similar to?
a)
Walkie Talkie
b)
Telephone
c)
Smoke signals
d)
Shouting really loudly
66.
Which data transmission conserves bandwidth better
a)
Half Duplex
b)
Full duplex
c)
(This question should only have 2 options)
67.
What does Duplex mean?
a)
The data can travel both ways
b)
It’s a type of cable
c)
It’s a kind of car
d)
There are more than 2 nodes
68.
Why does half duplex conserve bandwidth?
a)
Because it doesn't need to keep two data channels open
b)
Because its older
c)
Because it's slower
d)
What's bandwidth?
69.
What transmission system is better on a large network?
a)
Full duplex
b)
Half duplex
c)
Carrier pigeon
d)
Telegram
70.
What kind of communication device is full duplex similar to?
a)
telephone
b)
SMS message
c)
Walkie talkie
d)
passing notes in class
71.
What is a standalone computer?
a)
A computer that is not connected to a network
b)
A computer that is being used as a server
c)
A computer that does not have any peripherals attached to it
d)
A computer that is used by only one person
72.
Data is sent over 1 wire, a bit at a time, the data can travel in both directions but not simultaneously...What am i?
a)
Serial, Simplex data transmission
b)
Serial, half-duplex data transmission
c)
Parallel, full-duplex data transmission
d)
Parallel, half-duplex data transmission
73.
Data is sent over a single wire, one bit at a time and can travel in once direction only....What am i?
a)
Serial, Half-duplex data transmission
b)
Serial, Full-duplex transmission
c)
Serial, Simplex data transmission
d)
Parallel, simplex data transmission
74.
Data is sent over multiple wires, and can travel in both directions simultaneously...what am i?
a)
Parallel, simplex transmission
b)
Parallel, half-duplex transmission
c)
Parallel, full duplex data transmission
d)
Serial, full-duplex transmission
75.
What does the term medium mean when used with data transmission?
a)
The amount of data that can travel through a cable
b)
The way in which the data is carried, e.g. wireless, or cabled
c)
The quality of the data recieved
d)
How large the data packet it being sent
76.
Select all the apply....what factors could cause data being transmitted to have an error at the receiving end.
a)
Electrical Interference
b)
User error
c)
Power Surge
d)
Wear and tear on cables
77.
I use 1 bit as a check to ensure data sent is either odd or even...What error check am i?
a)
Check digit
b)
Parity check
c)
Check sum
d)
ARQ
78.
Using Even Parity - what is my missing parity bit?
a)
1
b)
0
c)
neither
79.
A parity check may not identify that a bit has been transmitted incorrectly. Why would that happen?
a)
computer thought it was using odd when it should be using even parity?
b)
2 bits have interchanged that wont change the parity value
c)
Bits were sent incorrectly
d)
Multiple errors in the same byte - no error will be detected
80.
I'm a form of error checking which adds an additional number at the end of a string of numbers designed to check for mistakes...what am i?
a)
Check sum
b)
Check digit
c)
Parity check
d)
ARQ
81.
I'm a byte of data sent with the data to ensure no changes/corruption have happened. What am i?
a)
Check digit
b)
ARQ
c)
Check sum
d)
Parity bit
82.
I'm a acknowledgement and timing based checking method, which will wait for a response from the receiving computer within a specified time before re-sending data..what am i?
a)
ARQ
b)
Check digit
c)
Parity bit
d)
Check sum
83.
What are the dangers to your computer from connecting to a network?
a)
Viruses
b)
Trojans
c)
Emails
d)
worms
84.
I attache myself to existing programs and infect your computer. I can self-replicate...what am i?
a)
Virus
b)
Worm
c)
Trojan
d)
Botnet
85.
I'm a standalone file that does not need a host to attach to - what am i?
a)
Virus
b)
Trojan
c)
Worm
d)
Botnet
86.
I'm a non-self replicating virus that masquerades as a harmless file that you might want to open...what am i?
a)
Virus
b)
Trojan
c)
Worm
d)
botnet
87.
What is a DoS attack?
a)
A virus that will infect your computer if given the chance
b)
An attack which will lead to your computer being used as a host
c)
Aimed at companies and web servers to overload them or force them to crash
d)
restricting access to your computer and files.
88.
How can you stop malware?
a)
Personal vigilance
b)
Don't own a computer
c)
Don't connect to the internet
d)
Anti-virus software
89.
I try to gain unlawful access to a computer or network without permission - who am i?
a)
Cracker
b)
Hacker
c)
Anti-virus software
90.
What is cracking?
a)
Gaining unauthorised access to your files
b)
Putting viruses into the network to infect computers
c)
Illegally accessing program source code to change or fool it to by pass restrictions
d)
Freeze your computer until you pay a randsom
91.
What is IP address?
a)
Internet proceedure address
b)
internet protocol address
c)
inside program address
d)
internet problem address
92.
What is an ISP?
a)
Internet service provider
b)
Internet special person
c)
Interesting scientific proceedure
93.
What is a cookie?
a)
Something the computer has to stop viruses
b)
Small text file placed on a client computer by a web server
c)
Feeds information from a server
94.
What is HTTPS?
a)
Protocol used in access and retrieving web pages from a server
b)
HyperText Transfer Protocol
c)
Where bits are sent to another computer
d)
Hyper text markup language
95.
Explain what an IP address is?
a)
Rules to stop errors
b)
Unique internet address assigned to computers by their NIC and routes packets
c)
descides the quickest was to move packets
d)
never changes
96.
What is a MAC Address?
a)
A website address
b)
Unique identifucation assigned to all network enabled devices at manufacture
c)
changes all the time
d)
address for where you live
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