Test
computer science quiz
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Preguntas del test (19)
1what does malware mean ?
- Amalicious software which damages the computer by infecting it.
- Bsoftware which helps the computer .
- Cmarvelous software which updates the computer and helps it run better.
2malware has four different types of ranges which are : [blank_start]spyware[blank_end] , [blank_start]viruses[blank_end] , [blank_start]adware[blank_end] and [blank_start]pharming[blank_end] .
- Aspyware
- Bviruses
- Cadware
- Dpharming
3Standard Virus
These hide in files / programs and replicate themselves in order to spread into other programs / files. Their aim is usually to delete or damage data.- AVerdadero
- BFalso
4These are often programs (such as a game) which you can use. But in the [blank_start]background[blank_end] they will cause harm, like deleting your files, making annoying changes to your computer setup or creating a portal for other users to use in order to gain access to your system
- Abackground
- Bdesktop
- Cfiles
5These don’t necessarily damage data, instead they simply try to [blank_start]replicate[blank_end] themselves, using more and more of the computer’s resources, slowing down your computer and making it useless.
- Areplicate
- Bbreak down
- Cfind
6what is the aim of spyware
- Ato spy on the user and send back as much information about them as possible (passwords, usernames, websites they visit
- Bto use the information and sell them stuff in the future
- Cto spy on the people you don't like to humiliate them in the future
7its aim is to [blank_start]download[blank_end] and display unwanted adverts and collect marketing information about your online habits.
- Adownload
- Bupdate
- Cdelete
- Drun
8Pharming malware seeks to change the [blank_start]IP[blank_end] address stored in the DNS (or cached on our computer) to another IP address so that the user is sent to a phoney website instead of the one they intended.
- AIP
9Pharming malware seeks to change the IP address stored in the DNS (or cached on our computer) to another IP address so that the user is sent to a [blank_start]phoney[blank_end] website instead of the one they intended.
- Aphoney
10This kind of malware often comes in the form of a pop up telling you that you have a [blank_start]virus[blank_end]. The pop up will them advertise purchasable software hoping that you will pass over your money.
- Ahacker
- Bvirus
- Cproblems
11This [blank_start]malware[blank_end] will seek to [blank_start]lock[blank_end] your computer making it [blank_start]useless[blank_end]. It will then demand that you pay a sum of [blank_start]money[blank_end] in order for you to get your computer working again.
- Amalware
- Block
- Cuseless
- Dmoney
12These pieces of malware contain a set of tools, which once installed, allow a [blank_start]criminal[blank_end] to access your computer at an administrator level, allowing them to do pretty [blank_start]much[blank_end] what they like
- Acriminal
- Bmuch
13what is a database ?
- AWhere data is stored is organized as well as permanent
- Bwhere data is stored randomly
14a [blank_start]foreign[blank_end] key is a field in one table that uniquely identifies a row of another table or the same table.
- Aforeign
- Bscreen
- Cprimary
- Dsecondary
15what are the advantages of computer based data bases over paper based ?
- Aeasy to edit
- Beasy to store
- Ceasy to make copies
- Deasy to know when the data has been changed
- Ethe data is very secure
- Feasy to analyse the data
16Firstly Must create [blank_start]tables[blank_end] next you would need to Define the fields/ attributes/columns . Setting data types would be the next thing to do. Define primary keys (the way you can uniquely identify reach records). Then Define [blank_start]relationships[blank_end] between the tables / foreign keys .Set the constraints on the data / validation rules
- Atables
- Bboxes
- Ccolumns
- Drows
- Erelationships
- Fconnections
17what is the function of SQL injections ?
- ASQL injection is a code injection technique that might destroy your database
SQL injection is one of the most common web hacking techniques.
SQL injection is the placement of malicious code in SQL statements, via web page input. - Bcode that copies everything then stores it externally
- ASQL injection is a code injection technique that might destroy your database
18But in [blank_start]1945[blank_end], a mathematician from the USA called John Von Neumann, had an idea. He wondered if it would be possible to create a computer where the program (and its data) could be stored together, independent of ‘the machine
- A1945
- B1946
- C1956
- D1939
19In the Von Neumann architecture, the data and instructions could be held together in memory and then [blank_start]fetched[blank_end], [blank_start]decoded[blank_end] and [blank_start]executed[blank_end] one at a time.
- Afetched
- Btake
- Cdecoded
- Dcoded
- Eexecuted
- Ftaken
Información
- Descripción
- Test sobre computer science quiz , creado por Priyanka Visana el 17/04/2018.
- Autor
- Priyanka Visana
- Idioma
- English
- Visitas
- 1
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