Computer science trivia

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• Which memory usually loses what it holds when the power goes off?Semiconductors
• In a digital semiconductor circuit, which set of basic values does one bit represent?Semiconductors
• What do we call a circuit that packs a great many electronic devices onto a small semiconductor substrate?Semiconductors
• Which impurity is typically used to turn silicon into a p-type semiconductor?Semiconductors
• Which impurity is typically used to turn silicon into an n-type semiconductor?Semiconductors
• Which device joins p-type and n-type semiconductor to let current flow in one direction?Semiconductors
• Which non-volatile memory does an SSD mainly use to store data?Semiconductors
• Which core semiconductor chip in a computer interprets instructions and performs calculations?Semiconductors
• A CPU is a semiconductor chip with many transistors integrated on it.Semiconductors
• Which core device acts as the switch that turns current on and off in an electronic circuit?Semiconductors
• Which of the following is the material most widely used to make semiconductors?Semiconductors
• The material most widely used to make semiconductors is not silicon but wood.Semiconductors
• A transistor is used to control the flow of current or to amplify an electrical signal.Semiconductors
• A single semiconductor chip can hold only one electronic circuit.Semiconductors
• Ordinary RAM is volatile memory, whose stored data disappears when the power goes off.Semiconductors
• Doping is the process of removing every impurity from a semiconductor to leave it pure.Semiconductors
• In a p-type semiconductor, electrons act as the main charge carriers.Semiconductors
• In an n-type semiconductor, electrons act as the main charge carriers.Semiconductors
• A diode is a device that lets current flow mainly in one direction.Semiconductors
• A semiconductor is a perfect insulator that carries no electricity at all under any condition.Semiconductors
• Which protocol do a web browser and a web server mainly use to exchange web pages?Networks and communication
• What do we call the small unit data is broken into for sending over a network?Networks and communication
• Which protocol automatically assigns an IP address and other settings to a device joining a network?Networks and communication
• Which protocol encrypts web traffic to cut the risk of eavesdropping and tampering?Networks and communication
• Which technology connects a phone or laptop to the internet wirelessly over a short range?Networks and communication
• Which device chooses the path data takes between different networks?Networks and communication
• What is the human-readable internet address used to find a website?Networks and communication
• Which system finds your current position using satellite signals?Networks and communication
• What signal carries the data in an optical fibre cable?Networks and communication
• Which system translates a domain name into an IP address?Networks and communication
• Optical fibre communication carries data using light.Networks and communication
• DNS is a technology that stores the contents of a website on its behalf and serves them back quickly.Networks and communication
• HTTPS is a method that sends and receives traffic in the clear, without encrypting it.Networks and communication
• TCP is a transport layer protocol that helps data arrive reliably and in order.Networks and communication
• Bandwidth expresses how much data a communication path can carry in a given time.Networks and communication
• A router is a device that stores electricity and supplies it during a power cut.Networks and communication
• Wi-Fi is a wired technology that only works with a LAN cable plugged in.Networks and communication
• The internet is the name for one giant computer owned by a single company.Networks and communication
• GPS is a system that works out position and time using satellite signals.Networks and communication
• An IP address is used to identify a device on a network and to deliver data to it.Networks and communication
• Which technology turns data into a form that unauthorized people find hard to read?Data and security
• Which method of authentication asks for an authenticator code or a security key alongside the password?Data and security
• Which function turns input data into a fixed-length value, used to check integrity and verify passwords?Data and security
• Which language is widely used to query and change data in a relational database?Data and security
• Which distributed ledger technology bundles records into blocks linked to the record before?Data and security
• Which security concept manages the right to use data and features according to the user or the system?Data and security
• What do we call a system that stores and manages a body of data in an orderly way?Data and security
• Which fraud uses fake emails or messages to extract personal information?Data and security
• Which task keeps a copy so that data can be recovered when a mistake or failure loses it?Data and security
• What is the most basic thing used to keep unauthorized people out of an online account?Data and security
• Phishing is a fraud that impersonates a trusted institution or person to extract personal information or money.Data and security
• Public Wi-Fi is always safe, so it is fine to log in to important accounts on it.Data and security
• A hash function is a two-way function, so the original input can easily be recovered from the hash alone.Data and security
• Multi-factor authentication removes the password entirely and lets you log in with an ID alone.Data and security
• HTTPS can encrypt what passes between a web browser and a server.Data and security
• A relational database generally stores data in tables made of rows and columns.Data and security
• Blockchain is a form of distributed ledger technology that records blocks of data linked to the block before.Data and security
• Using the same short, simple password across several services is the safest thing for account security.Data and security
• Encryption is the technology that shrinks data to save storage space.Data and security
• A backup is a separate copy kept against the possibility that data is lost.Data and security