Final Exam Model Paper 2

(Any two.)

• a.A bigger unit into a smaller one: multiply by 1024. 3 GB = 3 × 1024 MB = 3,072 MB.
• b.A smaller unit into a bigger one: divide by 1024. 5,120 KB = 5,120 ÷ 1024 MB = 5 MB.

a. Multiply each digit by its place value (powers of 8) and add:
2 × 8² + 4 × 8¹ + 7 × 8⁰ = 128 + 32 + 7 = 167
So (247)₈ = (167)₁₀.

b. Make groups of 3 bits from the right, and write each group as one octal digit:

So (101101110)₂ = (556)₈. Check: both are 366 in decimal.

a. Multiply by each digit of 101 and add the rows, shifting each row one place left:

        1 1 0 1      ×   1 0 1      ---------        1 1 0 1      (1101 × 1)      0 0 0 0 ×      (1101 × 0, shifted)    1 1 0 1 × ×      (1101 × 1, shifted twice)  -------------  1 0 0 0 0 0 1

So the product is (1000001)₂. Check: 13 × 5 = 65.

b. Long division, each step 1 or 0:

            1 0 1          -------  1 1 0 ) 1 1 1 1 0        − 1 1 0          -----              1 1 0          −   1 1 0              -----                  0

• 110 goes into 111 once: write 1; 111 − 110 = 1.
• Bring down 1: 11. 110 doesn’t go: write 0.
• Bring down 0: 110. It goes once: write 1; 110 − 110 = 0, the remainder.

So the quotient is (101)₂, remainder 0. Check: 30 ÷ 6 = 5.

<a href="https://www.welcomenepal.com" target="_blank">Visit Nepal Tourism Board</a><img src="rara.jpg" alt="Rara Lake">

href gives the address the link opens and target="_blank" opens it in a new tab. src names the picture’s file and alt gives the text shown, or read aloud, when the picture can’t be seen.

Remote login is logging in to a computer somewhere else (the remote computer) over a network, and using it from your own computer (the local computer): your keys and clicks go to the remote computer, and a picture of its screen comes back to you.
One more use (any one): working from home on an office computer and its files; looking after servers in a data center; a teacher showing a student how to do something on the student’s own computer.

• a.Bcc (blind carbon copy). Bcc recipients are hidden from everyone else, so no parent sees the other parents’ email addresses, which keeps them private. (In To or Cc every parent would see all 30 addresses.)
• b.A clear subject such as “Class 9 picnic this Saturday: notice for parents”. Parents see the subject first in their inbox, so it tells them what the email is about before they open it, and it isn’t mistaken for spam.

(Any two.)

• a.4 times: once for each item of the list.
• b.Only prices above 80 are added: 120 + 85 + 150 = 355 (60 is left out).

prices = [120, 85, 60, 150]total = 0for p in prices:    if p > 80:        total = total + pprint("Total:", total)

Total: 355

saving = 50total = 0for day in range(1, 11):    print(f"Day {day}: Rs {saving}")    total = total + saving    saving = saving + 10print(f"Total saved: Rs {total}")

Day 1: Rs 50Day 2: Rs 60Day 3: Rs 70Day 4: Rs 80Day 5: Rs 90Day 6: Rs 100Day 7: Rs 110Day 8: Rs 120Day 9: Rs 130Day 10: Rs 140Total saved: Rs 950

(Any correct program.)

An input device is a device used to enter raw data and instructions into a computer. It turns a key press, a movement, a sound or a picture into signals the computer works with.

Any three:

• Keyboard: to type text, numbers and commands.
• Mouse: a pointing device to point, click, select, drag and scroll.
• Scanner: to turn a paper document or photo into a digital picture.
• Microphone: to record sound, make voice and video calls and give spoken commands.
• Webcam: to capture live video for video meetings and online classes.
• Joystick: to play games and steer machines such as cranes and drones.
• Touchscreen or touchpad: to select, scroll and move the pointer with a finger.

• a.when green flag clicked (an Events block) starts it; the script runs when the green flag is clicked.
• b.It shows the question “What is 7 × 8?” and waits for the user to type a reply; the reply is kept in the Sensing block answer.
• c.54 is not equal to 56, so the condition is false and the else part runs: the sprite says “Try again!” for 2 seconds.
• d.if … then … else is a Control block; = is an Operators block.

<table border="1">  <tr>    <th rowspan="2">Route</th>    <th colspan="2">Departure</th>  </tr>  <tr>    <th>Morning</th>    <th>Evening</th>  </tr>  <tr>    <td>Kathmandu–Pokhara</td>    <td>7:00 AM</td>    <td>2:00 PM</td>  </tr>  <tr>    <td>Kathmandu–Chitwan</td>    <td>6:30 AM</td>    <td>1:00 PM</td>  </tr></table>

Route is one cell two rows tall (rowspan="2"), so the second row has only two cells, Morning and Evening; Departure is one cell two columns wide (colspan="2"). (<td> in place of <th> for the headings is also accepted.)

A digital footprint is the record of information created by a person’s activities online: searches, posts, messages, purchases and places visited. It is also called a digital shadow.

• Active digital footprint: information a user leaves knowingly, by choosing to share it. Examples: a social media post or comment, an email sent, a form filled in.
• Passive digital footprint: information collected without the user knowing or choosing to share it. Examples: the searches a search engine keeps, a phone’s location history, what you looked at while shopping online.

One way to protect yourself (any one): think before posting, since a post can stay forever; keep accounts private and share personal details only when needed; check the privacy settings and the apps’ permissions (location, contacts); clear the browsing history and cookies, or use incognito mode on a shared computer, and log out.

# Input: the visitor's age in whole yearsage = int(input("Enter the visitor's age: "))# Find the ticket price from the tableif age < 3:    price = 0elif age <= 12:    price = 50elif age <= 59:    price = 100else:    price = 50# Output: the priceprint("Ticket price = Rs", price)

Enter the visitor's age: 14Ticket price = Rs 100

The conditions are checked in order, so age <= 12 is reached only when the age is 3 or more. Test each band: 2 gives Rs 0, 9 Rs 50, 14 Rs 100, 65 Rs 50. (Any correct program.)