General Knowledge Flashcards
7 cards from real ICT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 General Knowledge flashcards as text
Which data structure operates on a 'Last In, First Out' (LIFO) principle?
Answer: Stack
A stack follows the LIFO principle, where the last element added is the first one to be removed.
What is two-factor authentication (2FA)?
Answer: A security process requiring two distinct forms of identification to access an account
2FA adds a second layer of security by requiring a second verification step (like a code sent to your phone) beyond just a password.
Which HTML tag is used to create a hyperlink?
Answer:
The (anchor) tag is used in HTML to create hyperlinks, using the href attribute to specify the destination URL.
What does the term 'open source' mean in software development?
Answer: Software whose source code is publicly available for anyone to view, modify, and distribute
Open source software makes its source code publicly available, allowing anyone to inspect, modify, and enhance it.
In a relational database, what is a 'primary key'?
Answer: A unique identifier for each record in a table
A primary key is a column (or set of columns) that uniquely identifies each row in a database table.
Which of the following is NOT a characteristic of 5G wireless technology compared to 4G?
Answer: Fewer connected devices per area
5G supports significantly more connected devices per unit area than 4G — it does not support fewer devices.
What is the function of an operating system's kernel?
Answer: Serve as the core that manages hardware resources and system processes
The kernel is the core component of an OS that manages CPU, memory, and I/O devices, bridging hardware and software.