Explanation:

The total population of 10 countries in the Asian zone is greater than the total population of 11 countries in the European zone. What can we say if one of the countries is dropped from the Asian zone ? Correct Answer We cannot say anything conclusively Population may vary in different countries. Thats why we cant say anything conclusively if one of the countries is dropped from the Asian zone.

Explanation:

What is the next number in this series 9, 36, 81, 144, ......... ? Correct Answer 225 32 = 9 62 = 36 92 = 81 122 = 144 152 = 225 ( ans)

Explanation:

CD-ROM stand for - Correct Answer Compact Disk Read Only Memory CD - ROM, abbreviation of compact disc read - only memory, type of computer memory in the form of a compact disc that is read by optical means. A CD - ROM drive uses a low - power laser beam to read digitized (binary) data that has been encoded in the form of tiny pits on an optical disk.

Explanation:

The positive difference between the squares of any two consecutive integers is always - Correct Answer an odd number Let, two consecutive integers are 2 and 322=4 and 32=9 the difference is 9-4=5 which is an odd number.

Explanation:

If x+y = z and x = y, then all of the following are true EXCEPT - Correct Answer x-y=2z If x=y then y+y=z So, 2y=z But in option D,  x-y=2zSo,  y-y = 2z or, z =0 which is not possible  so option D is not true

Explanation:

An example of an electronic spread sheet package is - Correct Answer Microsoft Excel The first electronic spreadsheet for microcomputers was VisiCalc. Examples of such spreadsheets are 1 - 2 - 3 from Lotus, Microsoft's Excel, and Borland's Quattro. In this course, we use Microsoft Excel.

Explanation:

If the difference between two numbers is 7 and their product is 60, then one of the two numbers must be- Correct Answer 5 x - y = 7; x = (y + 7) xy = 60 or , (y + 7).y = 60 or, y² + 7y - 60 = 0 or, (y + 12) (y – 5) = 0 So, Y = - 12,5 So, the two number is 12 and 5

Explanation:

Jamal's average score in 4 tests was 80 out of a possible 100 . If his scores in 2 of the tests were 65 and 70, what is the lowest that either of his other scores could have been ? Correct Answer 85 sum of 4 tests = 80*4 = 320sum of 2 tests = 65+70 = 135remaining score of the other 2 tests = 320-135 = 185As the highest number in exam is 100, so the lowest score he could have been = 185 - 100                                                                           = 85 (Ans)

Explanation:

In a university, 80 percent of the students lived in hostel , and 60 percent of the hostel students are lucky to get a single room. If number of lucky students is 1,200, then how many students were there in the university ? Correct Answer 2,500 60% of lucky students = 1200100% of lucky students = 1200×10060 = 2000 now,   80% of students lived in hostel = 2000         100% of students lived in hostel = 2000×10080                                                                       = 2500 (Ans)

Explanation:

A student first reduced a number by 20 percent and then increased it again by 20 percent . If the difference between the two new numbers was 8, then what is the original number ? Correct Answer 50 Suppose, Total marks = 10020% reduced = 80Then, 20% increased = 80 + 80 of 20% = 96Difference = 100 - 96 = 44 difference then orginal number = 1008 difference then orginal number = (100×8)/4                                                = 20020% increased = 96% Difference between two new number=  96-80 = 16Difference is 16 when the original number is 100   ,,            ,,   8   ,,      ,,   = 50Answer : 50

Explanation:

A shirt marked TK. 12.50 is sold at TK. 10.00. The rate of discount on the marked price is - Correct Answer 20% 12.5 - 10/12.50  = 25/125 × 100% = 20% (ans)

Explanation:

The most distinctive difference between a LAN and a WAN is - Correct Answer Distance Covered LAN সাধারণত অনেক কম এরিয়া জুড়ে ডিজাইন করা হয়। অন্যদিকে WAN অনেক বড় জায়গা জুড়ে, কোন কোন ক্ষেত্রে দুইটি আলাদা দেশের মধ্যেও থাকতে পারে। অর্থাৎ Geographic area বিবেচনায় LAN ছোট এবং WAN এর আকার বড়। Speed এর ব্যাপারে LAN সাধারণত Mbps থেকে Gbps Range এর হয়। অন্যদিকে WAN kbps থেকে সর্বোচ্চ Mbps পর্যন্ত হয়। এখানে Speed এর exact number বলা সম্ভব নয় কারণ তা ওঠা - নামা করে। পাশাপাশি, নেটওয়ার্ক ডিজাইনের উপরে এবং আরও বিভিন্ন বিষয়ের উপর নির্ভর করে।

Explanation:

The World Wide Web is part of the - Correct Answer internet The World Wide Web (WWW), commonly known as the Web, is an information system where documents and other web resources are identified by Uniform Resource Locators (URLs, such as https://example.com/ ), which may be interlinked by hypertext, and are accessible over the Internet.

Explanation:

The application that allows millions of people to access the World Wide Web daily is called a Web - Correct Answer Browser ইন্টারনেট ব্যবহারের ক্ষেত্রে যত ধরনের অ্যাপ্লিকেশন প্রোগ্রাম (Software) আছে, তার বেশিরভাগই ওয়েব ব্রাউজার। অর্থাৎ ইন্টারনেট ব্যবহারের ক্ষেত্রে ওয়েব ব্রাউজার অবশ্যই ব্যবহার করতে হবে। এ ছাড়া ইন্টারনেট ব্যবহারের ক্ষেত্রে মডেম, রাউটার, সুইচ, ফায়ারওয়াল, NAT - এসকল হার্ডওয়্যার ব্যবহার করতে হয়।

Explanation:

The most common storage media are Correct Answer Disks and tape বিভিন্ন Storage ডিভাইসের মধ্যে Pen drive, CD, DVD, Tape Recorder, Hard Disk drive, Solid State Drive (SSD) উল্লেখযোগ্য। Storage capacity: Pen drive - 8/16/32 Gigabyte and more CD - 700 Megabyte. DVD - 4.7 Gigabyte (in general). Maximum: 17.08 GB (double - sided, double - layer) HDD/SSD - 1 Terabyte, 2 Terabyte etc. Hard disk drive এর মতো SSD তে Rotating Disk নেই, বরং NAND flash microchip আছে। তাই, Hard Disk এর তুলনায় SSD অনেক Fast.

Explanation:

Questionnaires and many standardized tests use ___ technology to input the data. Correct Answer OMR POS: point - of - sale. Card এর মাধ্যমে payment করার জন্য বিভিন্ন রিটেইল শপে POS মেশিন ব্যবহার করা হয়। OMR: Optical Mark Recognition. Human marked data Analysis করার জন্য সাধারণত বিভিন্ন Survey এবং পরীক্ষায় এই Technology ব্যবহার করা হয়। OCR: Optical Character Recognition. বিভিন্ন typed, handwritten or printed text কে machine - encoded text এ রূপান্তর করার জন্য এর ব্যবহার করা হয়। MICR: Magnetic Ink Character Recognition. To verify the originality of paper documents. ব্যাংকের বিভিন্ন Document verify করার জন্য এই Technology ব্যবহার করা হয়। অনেক ব্যাংক বর্তমানে MICR cheque সেবা প্রদান করে।

Explanation:

Which of the following is an advantage of computers ? Correct Answer Store massive amount of data One of the most useful advantages of computers is able to store and access vast amounts of data, which can be retrieved in the future. Also, you can store movies, pictures, songs digitally, and documents on the computer, and can quickly find data accordingly and share information between devices.

Explanation:

If four triangles are constructed with sides of the length indicated below, which of the following triangles will not be a right triangle ? Correct Answer 12, 15, 18 অতিভূজ = ভূমি 2 + লম্ব132 = 52+122           52 = 32 + 42      172 = 82 + 152 182  (not equal to) 122 + 152

Explanation:

An entry in a spread sheet like = A4+A5+A6+A7 is an example of a : Correct Answer formula এটি মাইক্রোসফট এক্সেল (Microsoft Excel) এর একটি ফর্মুলা। Formula লেখার জন্য সমান ( = ) চিহ্ন ব্যবহার করে তারপর সংশ্লিষ্ট সমীকরণ লিখতে হয়। প্রশ্নে উল্লেখিত সমীকরণ দ্বারা A কলামের চারটি row এর মানের যোগফল নির্দেশ করে।

Explanation:

The term ___ describes the process of revising a document . Correct Answer editing প্রশ্নে উল্লেখিত বিষয়টি Computer system এর জন্য অত্যন্ত সাধারণ একটি বিষয়। যদি কোন File শুধুমাত্র পড়ার উদ্দেশ্যে ব্যবহার করা হয় তবে “Read” অপশন ব্যবহার করা হয়। File পরিবর্তন করতে হলে “Write” অপশন ব্যবহার করতে হয়। প্রশ্নের উত্তরের খাতিরে Write কথাটির পরিবর্তে Edit অপশনটি ব্যবহার করা যেতে পারে।

Explanation:

Programming errors detected by the language translator are called __ errors . Correct Answer syntax Syntax is the order or arrangement of words and phrases to form proper sentences. The most basic syntax follows a subject + verb + direct object formula. That is, "Jillian hit the ball." Syntax allows us to understand that we wouldn't write, "Hit Jillian the ball." Man hiking in the Andes as syntax in writing examples.

Explanation:

Pixel of a color monitor consists of 3 color dots. The colors are - Correct Answer red, green, blue A monitor or TV screen generates three colors of light (red, green, and blue) and the different colors we see are due to different combinations and intensities of these three primary colors. Each pixel on a computer screen is composed of three small dots of compounds called phosphors surrounded by a black mask.

Explanation:

Data transfer rate of a Dial-up Modem is measured in - Correct Answer Kbps ডায়েল আপ মডেম এ kbps rate এ ডেটা স্পিড মাপা হয়।

Explanation:

Which of the following components has the highest failure risk ? Correct Answer RAM RAM স্টোরেজটি অস্থায়ী হয়, তবে ROM এ সংরক্ষণ স্থায়ী হয়।

Explanation:

Maximum number of rows in an Excel sheet are - Correct Answer 65536 Excel Sheet এ 2^16 = 65,536 টি row থাকে

Explanation:

Which Memory device has highest speed of access ? Correct Answer Cache This cache consists of 16K for instructions and 16K for data. This cache provides the highest information access speeds available.

Explanation:

Disk De-fragmentation is used to- Correct Answer rearrange files in a disk The process of defragmentation moves the data blocks on the hard drive around to bring all the parts of a file together. Defragmentation reduces file system fragmentation, increasing the efficiency of data retrieval and thereby improving the overall performance of the computer.

Explanation:

Anti-virus software is a (an) - Correct Answer utility software Antivirus is a kind of software used to prevent, scan, detect and delete viruses from a computer. Once installed, most antivirus software runs automatically in the background to provide real - time protection against virus attacks. Comprehensive virus protection programs help protect your files and hardware from malware such as worms, Trojan horses and spyware, and may also offer additional protection such as customizable firewalls and website blocking

Explanation:

BIOS is a - Correct Answer Software In computing, BIOS an acronym for Basic Input/Output System and also known as the System BIOS, ROM BIOS or PC BIOS) is firmware used to perform hardware initialization during the booting process (power - on startup), and to provide runtime services for operating systems and programs. The BIOS firmware comes pre - installed on a personal computer's system board, and it is the first software to run when powered on. The name originates from the Basic Input/Output System used in the CP/M operating system in 1975.

Explanation:

Which Protocol is used for the Internet access ? Correct Answer TCP/IP TCP/ IP is a set a protocol in Computer Networking. TCP Mean Transmission Control Protocol and IP Mean Internet Protocol. On the other hands the given another three options are not Protocol. So TCP/ IP is the correct Answer.

Explanation:

A CD-ROM drive is labeled with 52x, Here 52X is a measurement of - Correct Answer data transfer rate The data transfer rate (DTR) is the amount of digital data that is moved from one place to another in a given time. The data transfer rate can be viewed as the speed of travel of a given amount of data from one place to another.

Explanation:

UPS stands for - Correct Answer Uninterruptible power supply An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source or mains power fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide near - instantaneous protection from input power interruptions, by supplying energy stored in batteries, supercapacitors, or flywheels. The on - battery run - time of most uninterruptible power sources is relatively short (only a few minutes) but sufficient to start a standby power source or properly shut down the protected equipment. It is a type of continual power system.

Explanation:

which one is not an e-mail software ? Correct Answer Colypso Calypso (Calypso Technology, Inc.) is a software application provider specializing in Capital Markets,

Explanation:

In MS-Word application package, you can produce same letter for different persons by using - Correct Answer mail merge যদি কোন একটি Common মেইল একাধিক ব্যক্তিকে পাঠাতে হয় সেক্ষেত্রে ঠিকানা, নাম প্রভৃতি বিষয় গুলো অর্থাৎ সামান্য পরিবর্তনগুলো Automatically করার জন্য আমরা মেইল মার্জ ব্যবহার করতে পারি। এই সুবিধা মাইক্রোসফট ওয়ার্ডে পাওয়া যায়।