Dutch-Bangla Bank Ltd - Management Trainee Officer - 05.02.2012/তথ্য প্রযুক্তি এর প্রশ্ন পরুন ।

প্রশ্নঃ All the logical and mathematical calculations done by the computer happen in/on the ----

বর্ণনাঃ All of the logic and mathematical calculations done by the computer happen on the central processing unit,CPU.

প্রশ্নঃ A person who uses his or her expertise to gain access to other people's computers to get information illegally or do damage is called a ---

বর্ণনাঃ The term hacker may refer to anyone with technical skills, but it often refers to a person who uses his or her abilities to gain unauthorized access to systems or networks in order to commit crimes.

প্রশ্নঃ Main memory works in conjunction with which of the following?

বর্ণনাঃ Main memory works in conjunction with CPU. Main memory refers to physical memory that is internal to the computer. The word main is used to distinguish it from external mass storage devices such as disk drives. Other terms used to mean main memory include RAM and primary storage.

প্রশ্নঃ The process of transferring files from a computer on the Internet to your computer is called ---

বর্ণনাঃ The process of transferring files from a computer on the Internet to your computer is called downloading

প্রশ্নঃ Which of the following are required to connect your computer to the Internet?

বর্ণনাঃ To connect to the Internet and other computers on a network, a computer must have a NIC (network interface card) installed. A network cable plugged into the NIC on one end and plugged into a cable modem, DSL modem, router, or switch can allow a computer to access the Internet and connect to other computers.

প্রশ্নঃ 1 KB = how many bytes?

বর্ণনাঃ Bit mean 0 or 1. 8 bits = 1 byte 1 x 1024 bytes = 1 KB (kilo bytes) 1× 1024 kb = 1 mb 1× 1024 mb = 1 gb 1× 1024 gb = 1 tb.

প্রশ্নঃ Which one of the following is true about firewalls?

বর্ণনাঃ Firewalls are filters network traffic which follows a set of rules and can either be used as hardware or software device. They are often categorized as network or host-based firewalls. Network firewall filter traffic between two or more networks while host networks run on host computers. Firewall is a network security system designed to prevent unauthorized access to or from private network. Network firewalls are used to prevent unauthorized internet users from accessing the private network especially intranets.

প্রশ্নঃ Which one of the following devices is specially designed to forward packets over the internet to specific ports based on the packet's address?

বর্ণনাঃ Switching hub devices is specially designed to forward packets to specific ports based on the packet's address.

প্রশ্নঃ In a computer, after the booting process which file executes automatically?

বর্ণনাঃ After booting process autoexec. bat file executes automatically.

প্রশ্নঃ Which one of the following is read only memory storage device?

বর্ণনাঃ A CD-ROM is a pre-pressed optical compact disc that contains data. Computers can read—but not write to or erase—CD-ROMs, i.e. it is a type of read-only memory.

প্রশ্নঃ In a computer, which one of the following devices is capable of storing only a single bit?

বর্ণনাঃ A flip flop is an electronic circuit with two stable states that can be used to store binary data. The stored data can be changed by applying varying inputs.

প্রশ্নঃ Which one of the following commands can be used to recreate a storage disk's tracks and sectors?

বর্ণনাঃ FORMAT command can be used to recreate the disk's tracks and sectors. The format command is only useful from within Windows if you're formatting a partition that can be shut down, or in other words, one that isn't currently dealing with locked files

প্রশ্নঃ Which one of the following companies is a leading manufacturer of Hard Disk Drives?

বর্ণনাঃ Segate is the company which is leader in manufacture of hard disk drives. Hard disk drive is electro mechanical data storage device that uses magnetic disk storage to store and retrieve digital information using one or more rigid rapidly rotating disks.

প্রশ্নঃ Which one of the following is the first calculating device?

বর্ণনাঃ The earliest recorded calculating device is the abacus. Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago.

প্রশ্নঃ Which one of the following cables can transmit data at high speeds?

বর্ণনাঃ Fiber Optic Cable হচ্ছে ডাই- ইলেকট্রিক পদার্থ দিয়ে তৈরি এক ধরণের খুব সরু ও নমনীয় কাঁচতন্তর আলোক নল ও আলো নিবন্ধকরণ এবং পরিবহনে সক্ষম। Fiber Optic Cable এ তিনটি অংশ থাকে। যথা- ১) কোর(Core), ২) ক্ল্যাডিং(Cladding), ৩) জ্যাকেট(Jacket)।

প্রশ্নঃ What is the other name for LAN Card?

বর্ণনাঃ Other name for LAN card is NIC which is network interface controller. it is installed in computers so that it can be connected to network.

প্রশ্নঃ In computers, what is the smallest and basic unit of information storage?

বর্ণনাঃ Bits and bytes are the basic building blocks of memory. "Bit" stands for binary digit. A bit is a one or a zero, on or off, which is how all computer information is stored. A byte is made up of eight bits.

প্রশ্নঃ Usually, in MSDOS, the primary hard disk drives has the drive letter ---

বর্ণনাঃ For nearly as long as hard disk drives have been placed in personal computers running certain popular operating systems (notably MS-DOS/Windows), the primary hard disk has been designated with the letter “C”.