Units of Measure: Storage (bit, Byte, KB, GB, TB), Speed (MHz, GHz), and Throughput (bps, Mbps, Gbps). IT-FUNDAMENTALS-ITF-CERTIFICATION Practice Questions (Page 4)

Questions 16–20

1. 16application · easy

   A technician is reading a CPU specification sheet that lists the processor speed as 3.2 GHz. The technician needs to document this speed in MHz for a report. Which of the following is the correct conversion?

   • A320 MHz
   • B0.0032 MHz
   • C3200 MHz
   • D32,000 MHz
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A user notices that a newly purchased 1 TB external hard drive shows only about 931 GB of usable space in the operating system. The user asks the technician to explain the discrepancy. Which of the following is the most accurate explanation?

   • AThe operating system is reserving space for system files, which reduces the available capacity.
   • BThe drive is defective and should be returned.
   • CThe drive uses some of its space for error correction, which is not available to the user.
   • DThe operating system uses binary notation (1 TB = 1024 GB), while the manufacturer uses decimal notation (1 TB = 1000 GB).
   Reveal Solution Discussion Select an answer first
4. 18application · easy

   A small business is comparing two internet plans. Plan A offers 500 Mbps download speed. Plan B offers 0.5 Gbps download speed. The business owner asks which plan provides faster downloads. Which of the following is the correct answer?

   • APlan A is faster because 500 is a larger number than 0.5.
   • BBoth plans offer the same download speed because 0.5 Gbps equals 500 Mbps.
   • CPlan B is faster because Gbps is a larger unit than Mbps.
   • DThe comparison cannot be made because Mbps and Gbps measure different things.
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A user is purchasing a USB flash drive and sees two options: one labeled 64 GB and another labeled 64,000,000,000 bytes. The user asks the technician which drive has more storage capacity. Which of the following is the correct answer?

   • AThe 64 GB drive has more capacity because GB uses a binary interpretation.
   • BThey are the same capacity because 64 GB equals 64,000,000,000 bytes in decimal notation.
   • CThe 64,000,000,000 byte drive has more capacity because it is a larger number.
   • DThe 64 GB drive has less capacity because GB is a smaller unit than bytes.
   Reveal Solution Discussion Select an answer first
6. 20application · hard

   A network technician is testing a new fiber optic connection. The technician downloads a 1.5 GB file and the transfer completes in 2 minutes. What is the average throughput of the connection in Mbps? (Assume 1 GB = 1000 MB and ignore protocol overhead.)

   • A750 Mbps
   • B12.5 Mbps
   • C1 Gbps
   • D100 Mbps
   Reveal Solution Discussion Select an answer first