Units of Measure: Storage (bit, Byte, KB, GB, TB), Speed (MHz, GHz), and Throughput (bps, Mbps, Gbps). IT-FUNDAMENTALS-ITF-CERTIFICATION Practice Questions (Page 3)

Questions 11–15

1. 11expert · medium

   A technician is comparing two CPUs for a server upgrade. CPU X has a clock speed of 2.8 GHz. CPU Y has a clock speed of 2800 MHz. The server runs a single-threaded application that is heavily dependent on clock speed. The technician must select the CPU that will provide the best performance for this specific workload. Which of the following is the most accurate conclusion?

   • AThe comparison cannot be made because GHz and MHz are not directly comparable units.
   • BCPU X will be faster because 2.8 GHz is a higher clock speed than 2800 MHz.
   • CCPU Y will be faster because it has more MHz, which means more clock cycles per second.
   • DBoth CPUs will perform identically for this workload because their clock speeds are equal.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   Which unit is used to measure the rate of data transfer over a network?

   • AGB
   • BByte
   • Cbps
   • DHz
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   A network connection has a speed of 100 Mbps. How many bits per second is this?

   • A10,000,000 bps
   • B1,000,000 bps
   • C100,000 bps
   • D100,000,000 bps
   Reveal Solution Discussion Select an answer first
5. 14expert · medium

   A system administrator is configuring a new server with 4 TB of storage. The operating system reports the drive as having 3.64 TB of usable space. The administrator needs to explain this discrepancy to management. Which of the following is the most accurate explanation?

   • AThe manufacturer uses decimal (1 TB = 1,000,000,000,000 bytes), while the OS uses binary (1 TB = 1,099,511,627,776 bytes).
   • BThe drive is defective and needs to be replaced.
   • CThe drive uses 0.36 TB for error correction and wear leveling.
   • DThe OS is reserving 0.36 TB for system files and recovery partitions.
   Reveal Solution Discussion Select an answer first
6. 15foundation · easy

   How many bits are in one byte?

   • A16
   • B1024
   • C4
   • D8
   Reveal Solution Discussion Select an answer first