COGNITIVE ASSESSMENT
Which of the following is NOT true about memory and storage?
A. Hard disks and solid-state disks generally have the largest storage capacities.
B. Storage devices often also function as a source of input and output.
C. Most memory keeps data and instructions permanently.
D. A storage device records and/or retrieves items to and from storage media.
Answer: C
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Evaluate the following expressions by writing each number in scientific notation. Combine the decimal part and their exponents to express the result in scientific notation rounded to four significant digits.
678 * 0.00001987 / 234,000
Which of the following commands will count the number of lines in a file named data.csv?
A. lc data.csv B. wc -l data.csv C. lines data.csv D. count -l data.csv
Each image placed on the web must comply with copyright rules.
Answer the following statement true (T) or false (F)
Analog bandwidth is
a. the difference between the highest and lowest frequency that can be passed on the circuit b. the highest frequency the circuit can pass c. the lowest frequency the circuit can pass d. the number of bits per second that can be sent on a circuit