631 . An organization is granted a block; one address is 2.2.2.64/20. The organization needs 10 subnets. What is the subnet prefix length?
- A. 720
- B. 724
- C. 723
- D. None of these
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632 . Each IP packet must contain -
- A. Only Source Address
- B. Only Destination Address
- C. Source and Destination Address
- D. None of these
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633 . For a computer 'LCD' stands for-
- A. Liquid Crisis Disparity
- B. Liquid Cross Data
- C. Large Crystal Display
- D. Liquid Crystal Display
- E. Large Capable Display
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634 . How do the main components of the computer communicate with each other?
- A. System bus
- B. Memory
- C. Keyboard
- D. None
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635 . How long is an IPv6 adress?
- A. 32 Bit
- B. 128 Bits
- C. 64 Bits
- D. 132 Bits
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বিভিন্ন মন্ত্রণালয় | সহকারী ম্যানটেনেন্স প্রকৌশলী | 24-05-2022
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636 . In an email address abc@xxx.bd , the portion 'xxx' indicates-
- A. Domain name
- B. TCp/IP layer name
- C. Domain Type
- D. Protocol name
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বিভিন্ন মন্ত্রণালয় | সহকারী ম্যানটেনেন্স প্রকৌশলী | 24-05-2022
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637 . In MS Word, pressing Ctrl + S will result in-
- A. Saving the document
- B. Centering alignment
- C. Exiting from MS Wordd
- D. Underlining text
- E. Deleting text
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638 . The advantage of using a spreadsheet is--
- A. calculation can be done autometically
- B. changing data autometically updates calculations
- C. more flexibility
- D. All of the above
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639 . Unsolicited commercial e-mail is commonly known as-
- A. Junk
- B. Hoaxes
- C. Spam
- D. Hypertext
- E. Virus
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640 . Which is an essential component of a LAN?
- A. Router
- B. Gateway
- C. NIC
- D. Modem
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641 . Which of the following is a private IP adress?
- A. 12.0.0.1
- B. 168.172.198.39
- C. 172.15.14.36
- D. 192.168.24.43
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বিভিন্ন মন্ত্রণালয় | সহকারী ম্যানটেনেন্স প্রকৌশলী | 24-05-2022
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642 . Which of the following is required to connect a computer to the internet?
- A. Pen Drive
- B. Mouse
- C. DVD
- D. Modem
- E. None of these
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643 . Which of the following shortcut keys do you use to find a specific word in a document?
- A. Ctrl + C
- B. Ctrl + X
- C. Ctrl + F
- D. Ctrl + S
- E. None of these
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644 . Which one of the following Operating Systems is not a Multitasking Operating System?
- A. DOS
- B. Linux
- C. Windows 98
- D. Unix
- E. None of these
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645 . Which organization defines the Web Standards?
- A. Microsoft Corporation
- B. IBM Corporation
- C. World Wide Web Consortium
- D. None of these
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