Computer Science/IT MCQs
Topic Notes: Computer Science/IT
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
101
What type of signal does an analog computer process?
Answer:
None of the above
Analog computers work with data that is in continuous form. They process signals that vary continuously over time, such as voltage, pressure, or temperature. Therefore, they process continuous electrical signals, which is not listed as an option.
102
A computer system used by a bank to manage its customer accounts is most likely a:
Answer:
Mainframe computer
** The banking industry relies heavily on mainframe computers for their ability to securely and reliably process a high volume of transactions and maintain large databases of customer information.
103
**In daily life, computers are used for navigation purposes through which application?**
Answer:
GPS (Global Positioning System)
** GPS technology, integrated with computers and mobile devices, provides real-time location and navigation assistance. It is a common application of computers that helps people in their daily commute and travel.
104
What type of computers are most prevalent in the world currently?
Answer:
Digital
The vast majority of computers in use today, from smartphones to supercomputers, are digital. They process information by representing it as discrete binary digits (0s and 1s). This approach allows for high accuracy, vast storage capabilities, and the flexibility to run a wide variety of software.
105
**In the context of exams, what is computer-based testing (CBT)?**
Answer:
A method of administering tests in which the responses are electronically recorded and assessed
** CBT involves candidates taking an exam on a computer. This format allows for different question types, automated scoring, and can provide immediate feedback.
106
Which of the following is based on analog computer technology?
Answer:
A mercury thermometer
** A mercury thermometer measures temperature by the continuous expansion and contraction of mercury in a glass tube. The height of the mercury column is analogous to the temperature.
107
In banking, the use of computers to maintain a centralized record of all customer transactions is a part of:
Answer:
Core Banking System (CBS)
** A CBS is a back-end system that processes banking transactions across various branches of a bank. It allows customers to access their accounts and perform transactions from any branch.
108
**What is a key advantage of a microcomputer?**
Answer:
Its affordability and compact size make it accessible to individuals and small businesses
** The microcomputer revolution, starting in the 1970s, brought computing into homes and small offices for the first time due to its relatively low cost and small footprint.
109
Which of the following is a major advantage of computer-based exams (CBE)?
Answer:
They can provide instant results and feedback.
** One of the key benefits of computer-based testing is the ability to automate the scoring process, allowing for immediate feedback to be given to the test-taker.
110
**What is the function of a 'firewall' in computing?**
Answer:
A network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules
** A firewall acts as a barrier between a trusted internal network and untrusted external networks, such as the Internet, to prevent unauthorized access.