Digital Technologies Flashcards
7 cards from real ICAS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Digital Technologies flashcards as text
Which of the following is a primary function of an operating system?
Answer: Manage hardware resources and provide services to applications
An operating system manages the computer's hardware resources (CPU, memory, storage) and provides a platform for applications to run.
What is the role of a 'compiler' in programming?
Answer: It translates the entire source code into machine code before running
A compiler translates the entire high-level source code into machine code (or an intermediate form) all at once before execution.
Which network topology connects all devices in a single continuous ring?
Answer: Ring topology
In a ring topology, each device is connected to exactly two others, forming a closed loop for data to travel around.
What does 'resolution' refer to when describing a digital image?
Answer: The number of pixels in the image
Image resolution refers to the number of pixels (picture elements) in an image, often expressed as width × height (e.g., 1920×1080).
In HTML, which tag is used to create a hyperlink?
Answer:
The (anchor) tag creates hyperlinks in HTML, using the href attribute to specify the destination URL.
Which of the following BEST describes 'open-source software'?
Answer: Software whose source code is publicly available for anyone to view and modify
Open-source software makes its source code publicly available, allowing anyone to inspect, modify, and distribute it.
What happens when two computers on the same network send data at exactly the same time and their signals collide?
Answer: A collision occurs and both computers must resend after a random delay
In Ethernet networks, a collision causes both signals to be lost; CSMA/CD protocol detects this and each device waits a random time before retransmitting.