WorksheetsJ276_P1_GGS_2
Total questions: 70
Worksheet time: 35mins
Name
Class
Date
1.
Which is NOT a threat to a computer system or network system?
a)
SQL injection
b)
Strong User Password
c)
Malware
d)
Phishing
2.
Which is NOT a threat to systems security?
a)
Set up a Virtual Private Network (VPN)
b)
Data interception and theft
c)
Brute force attack
d)
denial of service
3.
Which is NOT a threat to systems security?
a)
Using encryption
b)
SQL injection
c)
Poor betwork policy
d)
Social engineering
4.
Which is a protocol for viewing web pages securely?
a)
HTTP
b)
FTP
c)
POP3
d)
HTTPS
5.
Which is a protocol for viewing web pages securely?
a)
TCP/IP
b)
IMAP
c)
HTTPS
d)
SMTP
6.
Which is a protocol for viewing web pages securely?
a)
POP3
b)
IMAP
c)
HTTP
d)
HTTPS
7.
Which one is SQL injection?
a)
malicious code entered via a web form to modify the SQL statement causing unauthorised access to data
b)
Large number of requests sent to the server to keep it busy rather serving its legitimate users.
c)
By trial and error the attacker tries to obtain information such as user password or personal identification number (pin).
d)
By sending people emails to trick them to disclose their personal information such as user password.
8.
Which one is SQL injection?
a)
By opening backdoors in the system to steal information
b)
By listenig to the keystrokes on the computer to steal information
c)
By entering malicous code in query strings to cause unauthorised access to database.
d)
By sending viruses and trojan horses to cause unsuthorised access to the system.
9.
Which one is SQL injection?
a)
By wire-tapping on the network to intercept the data packets.
b)
By adding malicius code into query strings to cause unauthroised access to database
c)
Befriend the legitimate users and get key information from them to gain unauthorised access to data
d)
Causing the server unable to server properly by sending excessive messages asking the network or server to authenticate requests that have invalid return addresses.
10.
Which one is brute force attack?
a)
By trial-and-error method, the attacker tries to gain information to access a system
b)
By adding malicius code into query strings to cause unauthroised access to database
c)
Befriend the legitimate users and get key information from them to gain unauthorised access to data
d)
Causing the server unable to server properly by sending excessive messages asking the network or server to authenticate requests that have invalid return addresses.
11.
Which one is brute force attack?
a)
By opening backdoors in the system to steal information
b)
Large number of requests sent to the server to keep it busy rather serving its legitimate users.
c)
By using automated software to generate a large number of consecutive guesses as to the value of the desired data, to gain access to a system.
d)
By sending people emails to trick them to disclose their personal information such as user password.
12.
Which is NOT an IP address?
a)
192.1.1.1
b)
www.bbc.co.uk
c)
89.100.12.243
d)
10.10.168.1
13.
Which is NOT an IP address?
a)
46.46.46.46
b)
192.168.1.1
c)
192.168.1.254
d)
www.tfl.gov.uk
14.
Which one is NOT a URL
a)
192.1.1.1
b)
www.georgegreens.com
c)
www.google.com
d)
www.tfl.gov.uk
15.
Why do we use URL?
a)
Because it requires conversion between numbers and words
b)
Because it requires DNS to work
c)
It is easier to remember than IP address
d)
It is harder to rmember than IP address
16.
Why do we use IP address?
a)
It helps to sniff the packets
b)
To use it as a unique identification for each device on the internet
c)
It is easier to remember than URL
d)
It is harder to rmember than URL
17.
What is a LAN
a)
A local aera network that link computers on a single geographical site.
b)
It is Local Area Network
c)
A network linking networks across a large city
d)
It is wider area network linking networks across a large geographical area
18.
Why do people use LAN?
a)
To enable viruses to spread across all the computers easily.
b)
To spend more money to lay the cables or wireless access equipment
c)
To keep your computer secure and safe from hacking
d)
To share resources such as printers
19.
Why do people use wireless LAN?
a)
To enable viruses to spread across all the computers easily.
b)
To share resources and to remain mobile to increase productivity
c)
To keep your computer secure and safe from hacking
d)
To share resources such as printers
20.
What hardware devices do people need to access the internet?
a)
network interface card, router, cable or Wifi access point, printer,
b)
Printer, Monitor, CPU and RAM
c)
Browser, Operating System, ISP (Internet Service Provider), Monitor
d)
Wifi access point (WAP), Network Interface Card (NIC), Router, Cables
21.
A LAN, by definition, does
a)
NOT use external hardware
b)
use public phone lines to connect computers
c)
use the internet to connect the computers
d)
use any external hardware available, such as cloud storage
22.
A LAN, by definition, is NOT a
a)
A network for a small geographical area
b)
A network connecting sites using the internet
c)
A network for a single site
d)
A network for a single room
23.
A mesh topology with a server, 5 computers and two printers, WHICH is NOT correct?
a)
5 PCs connect to the server
b)
2 printers connect to the server
c)
printers are not DIRECTLY connected to PCs
d)
2 printers are connected to each other, OR to PCs
24.
In a client-server model, the personal computer is the client.
a)
The PC sends requests to server
b)
The PC shows results from server
c)
The PC controls the server
d)
The server processes requests
25.
In a client-server model, the server
a)
Does all of these
b)
Manages the clients
c)
Processes the requests
d)
Centrally stores files and software
26.
Increasing the amount of RAM, will improve on the computer's performance because
a)
All of those three reasons
b)
It runs faster when switching between programs because it could store all required programs in RAM, not Virtual Memory.
c)
It stores all your data files in RAM for quick saving and retrieving
d)
It could store more instructions from a program in RAM, not in Virtual memory, saving on switching time
27.
A faster processor can improve the performance of the computer because
a)
it requires faster cooling as it generates more heat
b)
the processor could process more instructions per second and it makes the computer do more work
c)
it waits longer as other components are so slow, comparatively.
d)
it could read from and write to the HDD faster.
28.
A SSD (solid state disk drive) could improve the computer's performance because
a)
It does not have a moveable part
b)
it costs more money
c)
it reads and write faster compared to HDD, because it is based on rea
d)
it uses electricity to run
29.
Why does your computer need systems software?
a)
The computer needs all the hardware and software to work together to work
b)
The computer needs to have security measures
c)
The files and applications need to be separated for different family members
d)
ALL of those reasons
30.
Which is NOT a function of an OS (operating system)
a)
Memory management (RAM allocation, collection etc.)
b)
User management (files, programs, storage allocation etc.)
c)
Providing a word processor for the user to write reports
d)
Providing an interface for user to access the computer functions
31.
Which is NOT a utility software
a)
Backup and backup scheduling
b)
managing the RAM
c)
Data compression (zipping files)
d)
anti-virus scan
32.
Which is NOT a utility software
a)
Providing an interface for the user to access the computer
b)
Firewall software
c)
Diskformatting software
d)
Disk defragmentation software
33.
Why compress data using utility software?
a)
To reduce the storage space required
b)
To make data transmission on a network longer
c)
To hide the meaning of the content to fight hackers
d)
to spend time to decompress it
34.
Why do you need to back up your data and programs?
a)
To prevent the hackers from accessing your data and programs
b)
To ensure no virus are detected and removed
c)
To format the disk for first use. Otherwise it will not be recognised.
d)
To restore your programs and data if they are lost
35.
File metadata contains data about the file. Which one is NOT a file metadata?
a)
The date created
b)
The file content, such as the image
c)
The date last accessed
d)
The date last backed up
36.
File metadata contains data about the file. Which one is NOT a file metadata?
a)
The author of the file
b)
The file type
c)
The file content
d)
The file size
37.
A diamond shape in flowchart is equivalent to
a)
a IF statement to check if a condition is met
b)
a FOR loop to do it repeatedly
c)
Input or Output of information
d)
Processing such as Addition or Subtraction
38.
A rectangle shape in flowchart is to represent
a)
To repeat the action for 10 times
b)
Processing such as multiplication or division
c)
To check if a is equal to b
d)
To check if the temperature is right for the reaction
39.
What UK law is broken if you use MS Office without license?
a)
Data Protection Act 1998
b)
Computer Misuse Act 1990
c)
Creative Commons License
d)
Copyright, Designs and Patents Act 1988
40.
Android is an Open Scource Operating System software. Are you
a)
allowed to edit the code
b)
allowed to view the code
c)
All three are correct
d)
allowed to edit and resell if you comply with Creative Commons License
41.
All software code you find online are
a)
open source code
b)
all three are possible
c)
proprietary code
d)
pseudocode
42.
If you found code online and use it in your own program, it would be illegal IF
a)
you erase all contributors' copyright acknowledgement
b)
the software code is proprietary
c)
you make people believe it is all your work
d)
you did ANY of the three
43.
If you found code online and use it in your own program, it would be unethical IF
a)
you erased all the sources and contributors
b)
you forget to mention the sources of the important code, but kept the less important ones.
c)
You changed the code and fully acknowledged their contribution
d)
POP
44.
What are the benefits for a publisher to write OPEN source software?
a)
To grow market share quickly as it is free
b)
To get other professionals involved and develop it faster and better
c)
They can concentrate on the key core issues while taking advantage of readily available code
d)
ALL three
45.
What are the benefits for a publisher to write proprietary software?
a)
Getting income from licenses
b)
Using the income to support further development
c)
All three are correct
d)
Protect core technologies and prevent others copying
46.
What are the drawbacks of OPEN source software to the publisher?
a)
All of those three
b)
Your code is open to all to see and edit, no secret to keep
c)
No income in short term or directly from the program
d)
Security risks as hackers may take advantage of the code available
47.
What are the drawbacks of proprietary software to the publisher?
a)
Need to have the means to protect your code
b)
all three are possible
c)
Need to be able to detect copyright infringement
d)
Need to be able to act upon infringement
48.
What are the drawbacks of OPEN source software to users/customers?
a)
It is free and costs nothing
b)
It may contain bugs
c)
It could be discontnued with notice
d)
Could get help from online communities
49.
What are the drawbacks of proprietary software to users/customers?
a)
It costs money to buy and install
b)
Could not be customised
c)
could not get help if anything goes wrong
d)
Difficult to get people to operate it
50.
What are the benefits of OPEN source software to users/customers?
a)
It is free and costs nothing
b)
all three are possible
c)
could be discontinued with notice
d)
Could get help from online communities
51.
What are the benefits of proprietary software to users/customers?
a)
It costs money to buy and install
b)
Could get support and training from the experts who designed it
c)
could be discontinued without notice
d)
Difficult to get people to operate it
52.
What is menat by frequency in a WiFi network?
a)
The rate at which the signal changes
b)
the number of times carrier signal repeats per unit of time
c)
It is measured in Hz
d)
ALL three
53.
What is a channel in Wifi networks
a)
A range of frequencies that will be used to carry data signals
b)
A tunnel dug underground
c)
A dedicated cable connecting all devices
d)
the same as 2.4GHz or 5GHz,
54.
Why do the designers divide a Wifi band into channels?
a)
The 2.4GHz band is divided into 11-14 channels
b)
The 5GHz band is divided into more than 14 channels
c)
Those channels could overlap, but there are channels that don't overlap
d)
Two devices using the same frequency will have interference problems which slows down data transmission
55.
Why do the designers divide a Wifi band into channels?
a)
Allow users to choose their own frequencies to reduce interference
b)
Separate frequencies will cause less interference
c)
All three are correct
d)
Less intereference from other users means faster transmission
56.
What is Ethernet
a)
It is a protocol, within the TCP/IP stack
b)
It governs the connection of devices within the office
c)
It uses cable to connect devices to transmit data
d)
ALL three
57.
In my school, there is a cabled network and wifi network. The cabled is ethernet based and is a LAN.
a)
the wifi network is a LAN too
b)
the wifi network is not a LAN
58.
The school ethernet network and the wifi network makes a WAN
a)
RIGHT because it is two networks joining up together
b)
WRONG because it is still the same local geographical area
59.
A ethernet LAN network supports the office data transmission
a)
uses wifi signals
b)
uses ethernet cables
c)
uses coax-cables
60.
The school ethernet LAN does not comply with the TCP/IP rpotocol suite
a)
Tes. It does since it is part of the suite.
b)
No, It does not and only complies with Ethernet protocol
61.
What is a packet in packet switching over the internet?
a)
It is letter in an envelope delivered by the post office
b)
It is a small unit of data with sender and recepient information
62.
Each packet will have the following information
a)
sequence number, sender information, recepient information
b)
sender information and recepient information
c)
sequence number
63.
Which device decides how packets are delivered?
a)
The sender's machine just sends all packets out
b)
The routers on the internet will check each packet and determines which route to send it to
c)
the recepient's machine will determine which route each packet takes
d)
It is all randomly decided
64.
To use packet switching, at the sender's end
a)
the computer splits the file into packets of fixed size
b)
Each packet is given a header including destination address and packet number
c)
each packet is given sender's address and then sent out to the internet
d)
ALL three
65.
To use packet switching, on the internet
a)
Each router on the internet has knowledge about their upper stream and down stream routers
b)
The routers read the header of a packet to find out its destination and then sends it out to the best route
c)
It looks like the packets find their own way to their destination
d)
ALL three
66.
To use packet switching, at the recepient's end
a)
The computer accepts all packets and keep them in memory
b)
The computer uses the correct porgram to assemble the packets in the right order
c)
The computer presents the received work to the user
d)
ALL three
67.
What is a virtual network
a)
It is a network using private cables
b)
It is a network created using softwre on current cables and connections
c)
It is not a real network, just imagined
68.
Why do people use virtual networks?
a)
for increased security
b)
no need to set own individual networks
c)
take advantage of the network hardware available
d)
ALL three
69.
Wifi transmission is bad on certain days because
a)
More users on that day using the wifi which caused more interference
b)
More data is transmitted which cause interference
c)
weak signal on that day due to new barriers or weather conditions
d)
ALL three
70.
How to improve the transmission performance of the wifi
a)
advise people to try different channels in their wifi settings
b)
use software to shift users into free channels
c)
All three are correct
d)
check and remove the barriers
100 %
