Question

1. (04.01 lc)

a group of students is studying abroad. between classes, the students visit several historical locations and take pictures. which metadata about the pictures can help the students sort the pictures to tell a chronological story of their time abroad? (5 points)
the red, blue, and green pixel values of the pictures
the time and date when the pictures were taken
the location where the pictures were taken
the camera settings used to take the pictures

1. (02.01 mc)

a music app assigns each song in its digital catalog a number. each time a customer searches for a song, its unique number is converted to binary to retrieve it from the music app’s catalog. the last song that the app added was 1110 0011. what will be the next decimal number assigned when a new song is added to the catalog? (5 points)
227
226
229
228

Explanation:

Step1: Solve Q10 (conceptual)

Chronological order relies on time/date metadata to sort events in sequence, so the time and date of the pictures is the correct choice.

Step2: Convert binary to decimal (Q11)

Calculate decimal value of 1110 0011:
$$(1 \times 2^7) + (1 \times 2^6) + (1 \times 2^5) + (0 \times 2^4) + (0 \times 2^3) + (0 \times 2^2) + (1 \times 2^1) + (1 \times 2^0)$$

Step3: Compute the sum

$$128 + 64 + 32 + 0 + 0 + 0 + 2 + 1 = 227$$

Step4: Find next assigned number

Add 1 to the decimal value:
$$227 + 1 = 228$$

Answer:

1. The time and date when the pictures were taken
2. 228