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security IG CS
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1
What is symmetric encryption?
When two files possess the exact same data
Where this is a single key used to encrypt and decrypt data
When both halves of the data uses the same encryption method
Where there are 2 keys used for encryption and decryption
2
ACM and IEEE created a SE code of ethics because software engineers have significant opportunities to
Enable others to do good or cause harm
All of the above
Influence others to do good or cause harm
Do good or cause harm
3
Symmetric encryption uses a private key
True
False
4
Why does computer ethics exist?
IGCSE syllabus made it up
I dont know
Due to the spread of computerised systems
Due to the spread of electronic communications
5
Encryption is
Dangerous to the internet.
A code invented by Albert Einstein
Scrambling or changing a message to hide text
Unscrambling a message to make it meaningful
6
The ACM code of ethics contains how many imperatives?
47
24
8
54
7
What is shareware?
Software that you must purchase
Software that has its code available for anyone to modify.
Software with a trial period before purchase
Software distributed free of charge
8
What is Symmetric Encryption?
Includes a public key which is available to anybody wanting to send data
Requires both the sender and recipient to possess the key
9
Uses of Hashing Algorithms?
Memory Addressing
Operating Systems
Encryption
Databases
10
What are computer ethics?
An honest, moral code that should be followed when online
A computer program about honesty
A computer that fits on or under a desk
A list of commandments
11
Web caching can reduce the delay in recieving a requested object because
it uses a faster transport protocol.
it uses fibre optic cable
it brings the desired content “closer” to the user.
it reduces the traffic on links.
12
What happens during a DdoS?
Dude 'dats Only Sick
The Treaty of Versailles is signed
Someone tries to hack into an account using trial-and-error
A large amount of data is sent to a server to overload it.
13
what is a firewall?
protect from unauthorized access with a firewall.
its a wall to stop the spread of fire
protect from authorized access with a firewall.
a fire wall
14
Asymmetric encryption uses both a _______ and _______ key.
Out of band and overhead
Private and Public
Key Escrow and CPU power.
Key Escrow and ECC
15
What does a Firewall do?
Designed to stop harmful programs from your computer
receives information from the internet
Allows access to programs on your computer
prevents unauthorized access
16
Which of the following are an example of authentication?
Telling the teacher to reset your password
Receiving a random code through your email that you require to log in
Using the keyboard shortcut Alt+f4
17
Which of these is not an example of intellectual property protection
Production
Trademark
Copyright
Patent
18
what does freeware do?
controls your mouse
collects data
re-distribution without the authors permission is prohibited
controls your computer
19
What does SSL stand for?
Socket Secure Layer
Secure Sockets Layer
Secret Security Layer
Secret Secure Layer
20
What is the definition of Authentication?
Turning code into something that can be understood.
Generating values from a string of text.
Software computers that can function like a physical computer.
Confirming the truth of a piece of data
21
What Does A Firewall Do
Block Certain Users
Only allow access through certain ports
All of the above
Burn the viruses out of the computer
22
What is Asymmetric Encryption?
When each half of the data is encrypted differently
Where there is only a single key used to encrypt and decrypt
When the encryption does not line up symmetrically
Where there are 2 keys present which are different
23
What is one benefit of web caching?
Blocked websites can be accessed easily
It's an easy way to make money online
It stops websites showing up in your history
Recently looked at pages are faster to access again
24
DDOS attack
Distributed Denial Of Service
Direct Disk Operating System
Denial Distribution Of Service
25
0. Methods of authentication
Security level cookies
Parental control resrictions
Passwords
Firewalls
26
Encrypted text is called...
Cipher text
Cypher text
Ciber text
Cyber text
27
What Is Web Document Caching?
Allows an employee to hide data from a company
Allows anyone in the corporate intranet to access the same information
Allows an administrator to setup a proxy server
The practicing of categorizing online content through tags
28
Asymmetric encryption keys are
not mathematically linked
public to encrypt, private to decrypt
MD5, SHA-1 or SHA-2
public to decrypt, private to encrypt
29
how many keys in asymmetric encryption?
1
2
3
4
30
Symmetric encryption may also be referred to as shared secret encryption OR
PUBLIC KEY
SHARED KEY
ESCROW KEY
KEY EXCHANGE
31
what is a DoS attack
denial of service
deprivation of security
denial of safety
denial of sanction
32
Hashing is a form of encryption
True
False
33
What is Encryption ?
An exeeded method to hide informations
All the answers above are true
A smart method for communicating informations
A smart method for hiding informations
34
What are the ACM Code and Guidelines intended to do?
Serve as a basis for ethical decision making in work
Force you to hack all world banks and get money illegally
Tell you what to do to not get hacked
Completely stop you from doing illegal activity
35
copyrighted software given away for free.
boot-up
freeware
installed
software
36
The process of taking cypher text and turning it back into plain text is called . . .
Encryption
Conversion
Decryption
A Cypher
37
Two Factor authentication is…
idk I just want the point
A password and passphrase
When the user provides two different authentication to verify themselves
A security process that relies on user characteristics to verify themselves
38
What are computer ethics?
A list of commandments
An honest, moral code that should be followed when online
A computer that fits on or under a desk
A computer program about honesty
39
How many sections are in the ACM Code of Ethics and Professional Conduct?
4
6
7
5
40
Ethics are...
a combined set of laws created by the United Nations
not important.
guidelines -discuss how telecommunications should be used
principles that people use to guide their decisions.
41
What is Freeware?
Free online clothing.
software that is made available free of charge.
Document stipulating constraints and practices
software that is made available not free of charge
