Computer Knowledge
326. The three colors of the pixel of color monitors are—
- ক. Red, green and yellow
- খ. Red, green and blue
- গ. Red, green and black
- ঘ. Yellow, green and blue
উত্তরঃ Red, green and blue
327. Which one of the following is the fastest data transmission media?
- ক. Twisted pair cable
- খ. Coaxial cable
- গ. Cat-5
- ঘ. Fiber optic cable
উত্তরঃ Fiber optic cable
328. Which of the following extensions is used for picture files stored in the computer?
- ক. exe
- খ. jpg
- গ. doc
- ঘ. xls
উত্তরঃ jpg
- ক. Bar code reader, CD drive, projector
- খ. Keyboard, monitor, hard disc
- গ. Printer, DVD drive, joystick
- ঘ. Printer, mouse, monitor
উত্তরঃ Keyboard, monitor, hard disc
330. What function does F1 stand for in most computers?
- ক. Help
- খ. Save
- গ. Save as
- ঘ. Cut-paste
উত্তরঃ Help
331. Unsolicited commercial e-mail is commonly known as—
- ক. Junk
- খ. Hoaxes
- গ. Spam
- ঘ. Hypertext
উত্তরঃ Spam
332. Chips are made up of millions of tiny parts/switches known as—
- ক. Etches
- খ. Transistors
- গ. Chargers
- ঘ. Electrons
উত্তরঃ Transistors
333. What is the unit of measurement for drive access time?
- ক. Nanoseconds
- খ. Seconds
- গ. Microseconds
- ঘ. Picoseconds
উত্তরঃ Seconds
334. What is the best way to protect your hard drive data?
- ক. Regular backups
- খ. Periodically defragment it
- গ. Run scandisk at least once a weak
- ঘ. None of the above
উত্তরঃ Regular backups
335. Physical components of a computer are called--
- ক. Software
- খ. Hardware
- গ. Malware
- ঘ. Terminals
উত্তরঃ Hardware
336. In computer terms, what does 'cncryption of data' mean?
- ক. Data cannot be sent over the internet
- খ. Data is encoded so it cannot be read without decoding software
- গ. Data is kept locked in special room
- ঘ. None of the above
উত্তরঃ Data is encoded so it cannot be read without decoding software
338. What part of the computer interprets and executes instructions that are posed to it?
- ক. RAM
- খ. CPU
- গ. ROM
- ঘ. Cache
উত্তরঃ CPU