Questions and Answers | A+
Score Assured
What is the best explanation for why digital data is represented in
computers in binary? - 🧠ANSWER ✔✔It's easier, cheaper, and more
reliable to build machines and devices that only have to distinguish
between binary states.
What is the 4-bit binary number for the decimal number Ten (10)? -
🧠ANSWER ✔✔1010
,What is the minimum number of bits you would need to encode the 26
letters of the alphabet plus a space - a total of 27 characters? - 🧠ANSWER
✔✔5 bits
Number systems with different bases such as binary (base-2), octal (base-
8), decimal (base-10), and hexadecimal (base-16), are all used to view and
represent digital data.
Which of the following is NOT true about representing digital data? -
🧠ANSWER ✔✔When data is large enough computers switch to using
decimal representation instead of binary, because you can represent larger
numbers with fewer digits.
Consider the following three binary numbers:
01010
010000
, 1110
Which of the following lists the numbers in order from least to greatest? -
🧠ANSWER ✔✔01010
1110
010000
A middle school is expanding to open a high school next year, doubling the
total number of students. The school keeps a database in which each
student's unique ID number is stored as an 8 bit number called studentID.
Before the arrival of the new students almost every 8 bit number has
already been assigned to a student. Of the options provided below, which
is the smallest change to the way studentID is represented necessary to
ensure each incoming student receives a unique ID? - 🧠ANSWER ✔✔Add
a bit to studentID to double the number of IDs that the database can
represent.
A user clicks on a website, and it begins to load immediately, but it takes a
long time to load completely and pictures appear slowly, one by one. Which
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