Font size
WorksheetsΡυθμός μετάδοσης δεδομένων & Αρχιτεκτονική BitTorrent
Total questions: 16
Worksheet time: 8mins
Which unit measures how many bits are transferred each second?
MBps, megabytes per hour
Bps, bytes per second
Hz, cycles per minute
bps, bits per second
A connection is 56 Mbps. What is the maximum download speed in MBps (megabytes per second)? Use 8 bits = 1 byte.
56 MBps maximum
7 MBps maximum
6.5 MBps maximum
8 MBps maximum
Which statement best explains the difference between bps and Bps?
bps counts bytes; Bps counts bits
bps counts bits; Bps counts bytes
Both count bits per minute
Both count bytes per minute
You see a file downloading at 7.4 MB/s. Approximately what data rate in Mbps is this? (1 byte = 8 bits)
8.0 Mbps
47.2 Mbps
7.4 Mbps
59.2 Mbps
A friend has 2 Mbps upload and you have 100 Mbps download. You download a file directly from the friend. What is the likely limiting speed?
About 2 Mbps
About 50 Mbps
About 200 Mbps
About 100 Mbps
Which option describes how BitTorrent improves download speed for large files?
By converting bytes to bits faster
By increasing your ISP plan speed
By getting pieces from many peers
By compressing all files automatically
Select all statements that are true about data rate units.
Mbps is megabits per second
1 Bps equals 8 bps
MBps is megabytes per second
1 bps equals 8 Bps
Why can BitTorrent achieve higher overall download rates than a single-source download?
It stores files closer to your router
It adds upload speeds from multiple peers
It bypasses internet congestion rules
It changes your modem’s hardware settings
Which statement best describes multimedia in digital applications?
It refers to printing images on paper
It combines text, images, audio, and video
It only displays static text on screens
It means higher internet speed for files
What does image resolution represent when given as 1920×1080?
Total pixels from width times height
The physical size of the screen in inches
Only the number of horizontal pixels
How bright the screen appears in daylight
A photo is 1920×1080. About how many MegaPixels is it?
About 2 MP after multiplication
About 8 MP from doubling 1080
About 4 MP using addition
About 6 MP by dividing width
A TV has 3840×2160 resolution (4K). Which is correct?
It equals Ultra High Definition
It is about 8 MP in total pixels
It has fewer pixels than 1920×1080
It uses 3840 vertical and 2160 horizontal
Which option shows the correct idea of RGB color on screens?
Only red light is needed for yellow color
Mixing red, green, blue light forms colors
Using cyan, magenta, yellow ink creates light
RGB values range from 0–100 for each
Which RGB triplet could display pure yellow on a screen?
(255,255,0) combining red and green
(0,0,255) combining only blue light
(255,0,255) combining red and blue
(0,255,0) combining only green light
Why do images with more pixels allow better zooming?
More pixels preserve detail when enlarged
More pixels make colors brighter outdoors
More pixels reduce the device’s weight
More pixels change screen size to larger
Ποια δήλωση σχετικά με το πλέγμα των pixel είναι σωστή;
Pixels float randomly without order
Each pixel stores three separate images
Τα Pixels είναι τακτοποιημένα σε σειρές και στήλες
Pixels only exist in printed photographs
