OCR GCSE Computer Science 1.4 Network security overview quiz quiz

Phishing

A firewall

A penetration test

Ransomware

Sending fake trusted-looking messages to trick users into revealing details

Systematically trying many different passwords one by one until one of them finally works

Flooding a server with so many requests that it can no longer respond to real users

Scrambling data using a secret key so that it cannot be read without that key

Floods a network with so much traffic that the server can no longer respond

Systematically tries many passwords or keys until the correct one is found

Tricks a user into clicking a link in a fake message that looks trustworthy

Inserts malicious SQL code into an input box that has not been validated

It steals all of the stored passwords straight out of a company's database

It encrypts the user's files and then demands a ransom payment to unlock them

It floods a server with requests so it cannot respond to legitimate users

It permanently disables the firewall so that all other attacks can get through

By repeatedly guessing the administrator password until the correct one is found

By sending a fake email that looks like it comes from a trusted organisation

By flooding the network with so many packets that the server cannot respond

By entering malicious SQL into an unvalidated input so the database runs it

Because many attacks exploit human trust and error, such as clicking phishing links

Because people type far too slowly to enter strong, complicated passwords correctly

Because most people are simply unable to use computers properly without making errors

Because firewalls never actually work, so the people have to defend the network instead

To find and remove any malware that is already installed on a device

To monitor and filter network traffic in and out by rules, blocking unauthorised access

To automatically back up all of the important files to a completely separate storage location

To encrypt the whole hard disk so stolen data cannot be read

They give every single user full access to everything purely for the sake of convenience

They completely remove the need for any passwords at all, because access is decided by the user's role instead

They give each user only the permissions their role needs, limiting damage if an account is compromised

They make the whole network run noticeably faster for every user who logs in

It completely stops the data from ever being intercepted in the first place

It automatically deletes the data straight after it has been sent to the receiver

It blocks all incoming traffic to the network so attackers cannot get in

It scrambles data with a key so intercepted data cannot be read without the key

To deliberately attack your own system to find weaknesses before real attackers do

To attack the networks of other rival companies in order to find all their weaknesses

To install malware onto a system so that its effects can be safely tested

To increase the available network bandwidth for all of the users on it

Designing and building popular social media websites for users

Manipulating people into giving away information or access

A particular type of hardware firewall used on networks

Writing secure code that cannot be exploited by attackers

A much faster internet connection for the whole office

A larger hard disk fitted in each of the computers

A network policy that includes staff training

Fitting more cache memory into the CPU of each machine