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Core Concepts and Principles Flashcards

7 cards from real IT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Core Concepts and Principles flashcards as text

  1. A help desk technician has identified a problem and established a theory of probable cause. According to the CompTIA troubleshooting methodology, what is the next step?

    Answer: Test the theory to determine the cause

    After establishing a theory, the technician must test it to confirm the cause before planning a fix.

  2. Which data unit represents the largest amount of storage?

    Answer: Petabyte

    A petabyte equals roughly 1,000 terabytes, making it the largest unit listed.

  3. An employee's password is captured and an attacker changes payroll records. Which element of the CIA triad was MOST directly violated by the record change?

    Answer: Integrity

    Unauthorized modification of data is a violation of integrity.

  4. Which notational system uses only the digits 0 through 9 and the letters A through F?

    Answer: Hexadecimal

    Hexadecimal is base 16, using 0-9 and A-F to represent values.

  5. A company pays a provider for virtual machines, storage, and networking but manages its own operating systems and applications. Which cloud service model is this?

    Answer: IaaS

    Infrastructure as a Service provides the underlying compute, storage, and network while the customer manages the OS and apps.

  6. Which input-processing-output-storage step describes a CPU calculating the total of a shopping cart?

    Answer: Processing

    Calculation performed by the CPU is the processing stage of the computing cycle.

  7. What is the decimal value of the binary number 1010?

    Answer: 10

    1010 in binary equals 8 + 0 + 2 + 0, which is 10.