The correct answer is Common Business Oriented Language. 

• COBOL stands for Common Business Oriented Language.
  • It is first developed in 1960 by CODASYL Committee (Conference on Data Systems Languages).
  • It is primarily designed for use in business-oriented applications.

Additional Information

• Some important Abbreviations

The correct answer is Fiber Distributed Data Interface

Key Points

• Fiber Distributed Data Interface (FDDI) is a standard for data transmission that utilizes a fiber optic cable. It was developed in mid-1980s by American National Standards Institute (ANSI) to exploit high-speed capabilities of fiber optics in local area networks (LANs).
• FDDI was primarily used as a high-speed backbone technology due to its support for high bandwidth. It operates over a dual ring network — meaning, it has a primary and a secondary communication ring. Information typically flows on primary ring in one direction, with secondary ring serving as a backup in case of a primary ring failure, hence term "dual" in its name.
• FDDI uses a token ring protocol to control access to network and allows data to be transmitted at speeds of up to 100 mbps up to 200 kilometers. It has mostly been superseded in favor of newer, higher-speed technologies such as Ernet and Wi-Fi, but its principles are still used and applicable in certain contexts.

The correct answer is TCP/IP.

• The standard network protocol of Internet, TCP/IP, stands for Transmission Control Protocol/Internet Protocol.
  • The Internet Protocol part of standard refers to addressing of data message packets.
  • Additional protocols that operate within TCP/IP framework include UDP, HTTP, and FTP.

Key Points

• The Internet Protocol (IP) is principal communications protocol in  Internet protocol suite for relaying datagrams across network boundaries.
• Its routing function enables internetworking and essentially establishes Internet.

The correct answer is Uninterrupted Power 

Key Points

?UPS

• The full form of UPS is Uninterrupted Power Supply.
• An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when input power source or mains power fails.
• A UPS is typically used to protect hardware such as computers, data centers, telecommunication equipment, or or electrical equipment where an unexpected power disruption could cause injuries, fatalities, serious business disruption or data loss.

The correct answer is .xlsx.

Key Points

• Microsoft Excel is an electronic spreadsheet that runs on a personal computer.
• Microsoft Excel 2007 is a version of Excel developed by Microsoft.
• Files created in MS Excel are known as Workbook.
• The extension used in MS Excel 2007 is '.xlsx'

Additional Information

The correct answer is American Standard Code for Information Interchange.

Key Points 

American Standard Code for Information Interchange (ASCII)

• It is a standard data transmission code that is used by smaller and less-powerful computers to represent both textual data (letters, numbers, and punctuation marks) and noninput-device commands (control characters).
• It is a code that uses numbers to represent characters.
• Each letter is assigned a number between 0 and 127.
• An upper and lower case character is assigned different numbers.
  • For example, character A is assigned decimal number 65, while a is assigned decimal 97
• It allows computers to communicate with each or and to efficiently process and store data.
• When a computer sends data, keys you press or text you send and receive is sent as a bunch of numbers.
• These numbers represent characters you typed or generated.

The correct answer is Write Once, Read Many.

Key Points:

• When used in all capital letters, WORM is an acronym for write once, read many, an optical disk technology that allows you to write data onto a disk just once.
• After that, data is permanent and can be read any number of times. 

Additional Information

• Anor term for Worm (termed as 'malware') A computer worm is a malicious virus, that is a self-replicating software program that affects functions of hardware and software programs.

The correct answer is Programmable read-only memory

Key Points

• PROM stands for Programmable Read-Only Memory.
• Read-only memory (ROM) is a type of memory that is used in electronics and computers.
• It is a non-volatile memory, that is, information stored in such memory is permanent and cannot be changed.
• The or two types of ROM are
  • Electrically Erasable Programmable ROM (EEPROM)
  • Erasable Programmable ROM (EPROM)

Additional Information

• Primary memory can be divided into RAM (Random Access Memory) and ROM (Read Only Memory)

Concept:

• Downloading: It is a process of transferring files from webserver(from internet) to user's computer.
• In this process, memory is required in user's computer.
• Only users can access this file.

Explanation:

• Uploading: It is a process of transferring files from  user's computer to  webserver(on  internet).
• In this process, memory is required in webserver.
• Anyone can access file using internet.
• FTP: File Transfer Protocol
• It is a set of rules for transferring data from one system to anor on internet.
• JPEG: Joint Photographic Expert Group.
• It is a graphic file format used for saving images.
• Definition of downloading matches with given sentence refore option 1 is correct answer.

Additional Information

•  Different file formats are used known as computer file extension.

The correct answer is Secondary.

• USB Pendrive is a Secondary type of storage device.

Key Points

• The full form of USB is Universal Serial Bus.
• USB is a plug and play interface that allows a computer to communicate with external and or devices.
• The first commercial release of Universal Serial Bus (version 1.0) was in January 1996.
• USB connectors come in different shapes and sizes. They are of various types which include  standard USB, Mini USB, and Micro USB, have two or more variations of connectors.

Additional Information

• A primary storage device is a storage medium that holds a memory for short periods of time while a computer is running.
• Random-access memory (RAM) and cache are both examples of a primary storage device.
• Tertiary storage devices comprise high-capacity data archives designed to include vast numbers of removable media, such as tapes or optical discs.