Practice Test GeeksICT - Information Communication Technology Practice Test
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Fundamentals 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.

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  1. What is the hexadecimal equivalent of the decimal number 255?

    Answer: FF

    Decimal 255 equals FF in hexadecimal, since F represents 15 and 15×16 + 15 = 255.

  2. Which layer of the OSI model is responsible for end-to-end communication and error recovery?

    Answer: Transport layer

    The Transport layer (Layer 4) of the OSI model handles end-to-end communication, error recovery, and data flow control.

  3. What distinguishes RAM from ROM?

    Answer: RAM is volatile; ROM is non-volatile

    RAM is volatile memory that loses its data when power is removed, while ROM is non-volatile and retains data without power.

  4. Which type of network topology connects all devices to a single central cable?

    Answer: Bus topology

    Bus topology connects all devices to a single backbone cable, with terminators at each end to prevent signal reflection.

  5. What is 'phishing' in the context of cybersecurity?

    Answer: Tricking users into revealing sensitive information

    Phishing is a social engineering attack that tricks users into revealing sensitive data like passwords through deceptive emails or websites.

  6. Which file format is most commonly used for lossy image compression?

    Answer: JPEG

    JPEG uses lossy compression, which reduces file size by permanently discarding some image data to achieve smaller file sizes.

  7. What is the role of DNS in internet communication?

    Answer: Translates domain names to IP addresses

    DNS (Domain Name System) translates human-readable domain names like www.example.com into numeric IP addresses computers use.