Computer Knowledge - 8 - SSC CGL MCQ

The correct answer is Switch.

Key Points

• A network switch is a device that operates at the Data Link layer of the OSI model—Layer 2. It takes in packets being sent by devices that are connected to its physical ports and sends them out again, but only through the ports that lead to the devices the packets are intended to reach. They can also operate at the network layer--Layer 3 where routing occurs.
• Switches are a common component of networks based on Ethernet, Fibre Channel, Asynchronous Transfer Mode (ATM), and InfiniBand, among others. In general, though, most switches today use ethernet.

Additional Information

• Following are different devices used in networking:

Correct Answer Output Devices.

Key Points:

• Hardware devices that retrieve data from a computer system and translate the received data into a form understandable to humans are known as output devices.
• These devices take digital information from a computer and convert it into a human-readable format.

Some common examples of output devices include:

• Monitor/Display: A visual output device that presents information in the form of text, images, and graphics on a screen.
• Printer: Prints digital data onto physical paper in the form of text, images, or both.
• Speaker: Converts digital audio data into an audible sound, allowing users to hear sounds, music, or other audio output.
• Projector: Displays computer-generated images or video onto a larger screen or projection surface, often used for presentations or home theater setups.
• Headphones/Earphones: Output devices that provide audio output directly to the user's ears, allowing for private listening.
• Plotter: A device used to produce high-quality, large-scale graphics or drawings based on computer instructions.

The correct answer is Ctrl + K.

Key Points

• Ctrl + L: The keyboard shortcut is used for aligning the objects or elements of the MS PowerPoint towards the left.
• Ctrl + K: The keyboard shortcut is used for inserting the hyperlink in MS PowerPoint.
• Ctrl + M: The keyboard shortcut is used for a new slide in the presentation.
• Ctrl + S: The keyboard shortcut is used to save the current presentation.

Thus the correct answer is Ctrl + K.

Additional Information

PowerPoint displays square measures helpful for each personal and skilled usage. Given below square measure a couple of the foremost fields wherever PPT is very useful:

• Education – With e-learning and sensible categories being chosen as a typical mode of education these days, PowerPoint displays will facilitate creating education a lot of interactive and attract students towards the changed version of learning.
• Marketing – within the field of selling, PowerPoint displays will be very necessary. Mistreatment graphs and charts, numbers will be shown a lot plain and clearly which can be unnoticed by the viewer if being scanned.
• Business – to ask investors or to indicate the rise or decrease in profits, MS PowerPoint will be used.
• Depicting Growth – Since each graphic and text will be adscititious during a presentation, the portrayal of the expansion of a corporation, business, student’s marks, etc. is simpler than mistreatment PPT.

The correct option is (3)

Clipart

Key Points

• A graphic or image that you can paste into your document is referred to as clip art. It is available in a variety of styles and formats. It is applied to improve a document's visual appeal.
• In just a few easy steps, you can add clip art to a document. The functionality of this feature is the same in Word 2013 and Word 2016.
• Click Online Pictures (referred to as Clip Art in Word 2007/2010) from the Insert tab's Illustrations group.

Key Points

Drop cap:- Drop caps are a unique feature offered by MS Word. A drop cap is a big capital letter that appears at the start of a block of text.

Hard disk:- Hard disc, commonly known as a hard disc drive or hard drive, is a computer's magnetic storage medium.

Word Art:- You can add text styles from the WordArt library to your publications to add ornamental elements like shaded or mirrored (reflected) text.

TCP / IP model is a communications protocol to interconnect network devices on the internet. TCP / IP model has 4 layers.

The four layers are as follows:

• Application layer
• Transport layer
• Internet layer
• Network access layer

The presentation layer is absent in the TCP / IP model.

Various Protocols and the layers on which they work in TCP/IP model is shown:

Important Point

• TCP/IP model has 4 layers while the OSI model has 7 layers.

• These 7 Layers of OSI are the application layer, the presentation layer, the session layer, the transport layer, the network layer, the data-link layer, and the physical layer.

• The presentation layer is absent in the TCP/IP model while it is present in the OSI model.

The correct answer is Fourth Generation.

Key Points

• The GUI was first developed at Xerox PARC by Alan Kay, Douglas Engelbart, and a group of other researchers in 1981. Later, Apple introduced the Lisa computer with a GUI on January 19, 1983.
• Graphical User Interface (GUI) was developed during the Fourth Generation of computers.
• These graphical elements are sometimes enhanced with sounds or visual effects like transparency and drop shadows. Using these objects, a user can use the computer without having to know commands.

Additional Information

• A GUI (graphical user interface) is a system of interactive visual components for computer software.
• A GUI displays objects that convey information, and represent actions that can be taken by the user.
• A GUI includes GUI objects like icons, cursors, and buttons.
• The Icons are used to represent a specific operation. A settings bottom is represented by a gear icon.
• Menus contain the set of operations that can be performed on the following window. Menus mainly use drop-down drawers which contain multiple buttons.
• The graphs are also used to represent the data related to the system. Like the temperature of the motherboard is represented by the graphs.
• The command lines are not part of the graphical interface, but they work in the background.

The correct answer is Flip-flop.

Key Points

• The sequential electronic circuit that is used to store 1-bit of information is called a flip-flop.
  • A flip-flop is a type of digital circuit that can store one bit of information in its two stable states. It is a building block of sequential circuits and is commonly used for storing and transferring binary data.
  • There are several types of flip-flops, including D flip-flops, JK flip-flops, T flip-flops, and SR flip-flops.
  • Each type of flip-flop has a specific function and is designed for different applications.

Additional Information

• Registers are a type of computer memory used to quickly accept, store, and transfer data and instructions that are being used immediately by the CPU.
• A transistor computer, now often called a second generation computer, is a computer that uses discrete transistors instead of vacuum tubes.
• Capacitors have many important applications.
  • They are used, for example, in digital circuits so that information stored in large computer memory is not lost during a momentary electrical power failure;
  • The electrical energy stored in such capacitors retains information during a temporary loss of power.

The correct answer is 6 to 30

Key Points

• Google's guidelines specify that a Gmail username needs to be between 6 and 30 characters long.
• The username is the part of the email address before the "@gmail.com".
• It cannot be shorter than 6 characters and can't be longer than 30.
• This is to ensure a minimum and maximum limit on the length of usernames for both practicality and legibility reasons.

Nano Virus & Hangout Virus are not legitimate type of computer virus.
Hence, Option D is correct.

The memory bus is a type of computer bus, Which connects the main memory to the memory controller in computer systems.
Hence, Option B is correct.

In windows, the recycle bin is a folder where deleted items are temporarily stored unless they are permanently deleted.
Hence, option B is the correct answer.

A website is a collection of web pages and related content that is identified by a common domain name and published on at least one web server.
Examples of notable websites are Google, Facebook, Amazon, and Wikipedia.
Hence, option B is the correct answer.

In the context of computers, RDRAM stands for Rambus Dynamic Random Access Memory.
It is a memory subsystem designed to transfer data at faster rates. RDAM is made up of a random-access memory (RAM), a RAM controller and a bus path that connect RAM to microprocessors and other PC devices.
Hence, option A is the correct answer.

In the context of computers, ‘C’ stands for ‘Card’ in NIC (Network Interface Card).
It is a hardware component, typically a circuit board or chip, which is installed on a computer so it can connect to a network.
Hence, option A is the correct answer.

Python is the correct answer. Three languages have emerged to handle different aspects of modern front-end websites: HTML, CSS, and JavaScript.
These are the only coding languages that browsers natively recognise, and since each handles a different aspect of web development.
Hence, option C is the correct answer.

BCC or Blind Carbon Copy is a feature that enables privacy when a single e-mail is sent to various recipients.
When you place email addresses in the BCC field of a message, those addresses are invisible to the recipients of the email.
Hence, option A is the correct answer.

The correct answer is Downloading.

Key Points

• The process of copying files from a remote server to a local drive is as known as downloading.
• In computer networks, download means to receive data from a remote system, typically a server such as a web server, an FTP server, an email server, or other similar systems.
• This contrasts with uploading, where data is sent to a remote server.

Additional Information

• Uploading refers to transmitting data from one computer system to another through means of a network.
• Browsing is the act of looking through a set of information quickly, without a specific sense of purpose.
• An attachment, or email attachment, is a file sent with an email message. It may be an image, video, text document, or any other type of file.

The correct answer is option 3, i.e. Floppy Disk Drive.

• FDD stands for Floppy Disk Drive.
• A floppy disk drive (FDD), or floppy drive, is a hardware device that reads data storage information.
• It was invented in 1967 by a team at IBM and was one of the first types of hardware storage that could read/write a portable device.
• FDDs are used for reading and writing on removable floppy discs.
• Floppy disks are now outdated, and have been replaced by other storage devices such as USB and network file transfer.

The correct answer is Mail Merge Wizard.

Key Points

MAIL MERGE WIZARD:

• Mail Merge is used to create and send bulk mail, labels, and envelopes.
• The feature is usually employed in a word processing document, e.g. an MS Word file, which contains fixed text (which is the same in each output document) and variables (which act as placeholders that are replaced by text from the data source).
• Mail Merge enables us to send the same letter to different persons in MS Word.
• It imports data from another source such as a spreadsheet and then uses that to replace placeholders throughout the message with the relevant information for each individual that is being messaged.

Additional Information

Advantages of mail merge:

1) It saves time and effort as only one document needs to be checked for errors, so there are also fewer chances of mistakes being done.

2) The standard letter/template can be saved and reused.

Disadvantages of mail merge:

1) Mailmerge letters can lack a personal touch, because the only individual part, is the data merged from the database.

2) The database that provides the information, must be kept up to date.

Steps to use the Select Recipient option in the Mail Merge.

The correct answer is Local Area Network.

Key Points

• A Local Area Network (LAN) is a network that connects computers within a limited area such as a residence, school, laboratory, or office building.
• LANs are characterized by higher data-transfer rates, smaller geographic range, and lack of a need for leased telecommunication lines.
• Devices on a LAN are typically connected via Ethernet cables or through wireless connections using Wi-Fi.
• LANs are widely used to share resources such as printers, files, and internet connections among multiple devices.
• They are essential for enabling collaboration within organizations by providing a common platform for communication and data exchange.

Additional Information

• Limited Area Network
  • This term is not commonly used in networking. The correct term is Local Area Network (LAN).
• Large Area Network
  • This term is also not standard in networking terminology. The correct term for a larger network spanning multiple locations is a Wide Area Network (WAN).
• Logical Area Network
  • This term is incorrect in the context of networking. The correct term is Local Area Network (LAN).