Computer Knowledge

276. A technique used by codes to convert an analog signal into a digital bit stream is known as--

• ক. Pulse code modulation
• খ. Pluse stretcher
• গ. Query processing
• ঘ. Queue management

277. The personnel who deals with the computer and its mamagement put togather are called---

• ক. Software
• খ. Human ware
• গ. Firmware
• ঘ. Hardware

278. Each model of a computer has a unique--

• ক. Machine language
• খ. Assembly of a computer
• গ. High level language
• ঘ. All of the above

279. Which of the items below are considered removable storage media?

• ক. Removable hard disk cartridges
• খ. (Magneto-optical) disk
• গ. Flexible disks cartridges
• ঘ. All of the above

280. Which of the following are considered to be video component?

• ক. Resolution
• খ. Color depth
• গ. Refresh rate
• ঘ. All of the above

281. Before a disk can be used to store data. It must be---

• ক. Formatted
• খ. Reformatted
• গ. Addressed
• ঘ. None of the above

282. '.bak' extensionrefers usually to what kind of file?

• ক. Backup file
• খ. Audio file
• গ. Animation file
• ঘ. MS Encarta document

283. Which of the following commands is given to reboot the computer?

• ক. Ctrl + Alt + Del
• খ. Ctrl + Alt + Tab
• গ. Ctrl + Shift + Del
• ঘ. Ctrl + Shift + Tab

284. 'Bkash' is an example of:

• ক. Application software
• খ. Third generation language
• গ. Mobile banking
• ঘ. First generation language

285. You must install this on a netwark if you want to share a broadband internet connection:

• ক. Router
• খ. Modem
• গ. Node
• ঘ. Cable

286. Which of the following is not an output device?

• ক. Scanner
• খ. Printer
• গ. Laser printer
• ঘ. Monitor

287. MPEG extension refers to:

• ক. System file
• খ. MS Office Document
• গ. Video file
• ঘ. Image file

288. Voip extension refers to:

• ক. Voice Over Internet Protocol
• খ. Voice over Internet Provider
• গ. Voice over Internet Practice
• ঘ. Voice Over Internet Press

289. Which of the following application is used for calculation?

• ক. Microsoft Word
• খ. Microsoft Excel
• গ. Microsoft Outlook
• ঘ. Microsoft Powerpoint

290. In MS Word, pressing CTRL + S will result in:

• ক. Saving the document
• খ. Centering aligment
• গ. Exiting from MS word
• ঘ. Underlining text

291. Which of the following is not anti-virus software?

• ক. Norton
• খ. Kaspersky
• গ. AVG
• ঘ. Win-pro

292. (111111110)2 = (?)10

• ক. 256
• খ. 511
• গ. 510
• ঘ. 512

293. Common keyboard arrangement is called?

• ক. QWETRY
• খ. QWRERT
• গ. QWRTEY
• ঘ. QWERTY

294. Which types of interface allow connect, control musical instruments to computer?

• ক. MIDI
• খ. DIMI
• গ. DIIM
• ঘ. MDII

295. Every web page has a unique address called.

• ক. http
• খ. uniform resource locator
• গ. hypertext
• ঘ. hyperlink

296. Which one is an application package?

• ক. DOS
• খ. LOTUS
• গ. LUNUX
• ঘ. UBUNTU

297. Which type of ROM is used in pen drive?

• ক. Mask ROM
• খ. EP ROM
• গ. CD ROM
• ঘ. EEP ROM

298. A RAM chip is labeled as ‘2Mx16’. What is the word-size of the RAM?

• ক. 2 Bytes
• খ. 16 Bytes
• গ. 2x16 MB
• ঘ. 8 Bits

299. Which one is both input and output device?

• ক. Plotter
• খ. Touch Screen
• গ. Printer
• ঘ. OMR

300. Which one is a layer 3(Network Layer) protocol?

• ক. UDP
• খ. DNS
• গ. TCP
• ঘ. IP