Computer Aptitude MCQ Quiz - Objective Question with Answer for Computer Aptitude - Download Free PDF

Let’s consider each option one by one.

Option 1, i.e., D3 -> Since road 3 is made one way towards the east, this is a possible position.

Option 2, i.e., D4 -> Since road 4 is made one way towards the west, this is not possible.

Option 3, i.e., E3 -> Since road 3 is made one way towards east, this is possible.

Option 4, i.e., F1 -> Since road 1 is made one way towards east, this is possible.

Hence, option (2) is correct.

Let's consider each option;

Option 1, i.e., D4 -> Minimum travelling distance between D1 and D4 is 3 km (an odd number). So, it cannot be covered by travelling 4 km (an even number).

Option 2, i.e., E3 -> Minimum travelling distance between D1 and E3 is 3 km (an odd number). So, it cannot be covered by travelling 4 km (an even number).

Option 3, i.e., F3 -> Minimum travelling distance between D1 and F3 (an even number) is 4 km and the minimum travelling distance between E4 and F3 is 2 km (an even number). So, it can be covered by travelling 4 km (an even number) as shown in the figure.

Option 4, i.e., C3 -> Minimum travelling distance between D1 and C3 is 3 km (an odd number). So, it cannot be covered by travelling 4 km (an even number).

Hence, option (3) is correct.

The minimum distance from D2 to F4 is 6 km with one-way restrictions. So, we have to figure out different ways with which we can travel 6 km to reach from D2 to F4.

As shown in the figure, it can be done in three ways.

Calculate the steps to each of the given points in the options, hence, I5 is the only point, where Snape can't reach by travelling 6 km.

The road diagram of the town is given in the diagram:

To reach B2 from H6, the person must walk 6 steps towards the west and 4 steps towards the south, regardless of the route chosen.

Thus, the possible paths she can take are:

H6 → D6 → D4 → B4 → B2 or

H6 → H4 → D4 → B4 → B2

(There may be a few other routes with the same total distance.)

A computer is a device which is used for fast work and calculations. It consist of four elements the hardware, the users, the application programs, and the operating system.

• Hardware: It is the fixed physical equipment that can not be changed without replacement or physical modification. 
  • A typical example of a hardware device is a modem. A modem is a device that sends information between the outside world, or wide area network (WAN), and your home. Without a modem, you cannot access WiFi. 
  • Another example is cable which helps in charging laptops.
• Application Programs: The application programs-such as compilers, spreadsheets, word processors and web browsers explain the ways in which hardware resources are utilized to solve the computing troubles of the users. For example, hard drives are utilized by storing file in them.
• User: A user is an agent, either a software agent or human agent (end-user), who uses a computer or network service.
• Operating System: It is a software which is an interface between hardware and application software. For example Windows, Ubuntu etc.

It should be noted that chrome and cable are not related. Take a situation, a mobile phone user uses chrome for searching some information. Here the user does not require wire to search.

Hence, we conclude that chrome and cable are not related.

Explanation:

• EBCDIC stands for Extended Binary Coded Decimal Interchange Code is an eight-bit character encoding used mainly on IBM mainframe and IBM midrange computer operating systems.
• It was used for mainframe computers in the United States.
• EBCDIC was devised in 1963 and 1964 by IBM. It is an eight-bit character encoding, developed separately from the seven-bit ASCII encoding scheme.

The correct answer is TCP/IP.

Key Points

• TCP and IP are two separate computer network protocols.
• IP is the part that obtains the address to which data is sent. TCP is responsible for data delivery once that IP address has been found.
• It's possible to separate them, but there isn’t really a point in making a difference between TCP and IP. Because they're so often used together, “TCP/IP” and the “TCP/IP model” are now recognized terminology.
• Think of it this way: The IP address is like the phone number assigned to your smartphone. TCP is all the technology that makes the phone ring, and that enables you to talk to someone on another phone. They are different from one another, but they are also meaningless without one another.

 Important Points

• TCP/IP stands for Transmission Control Protocol/Internet Protocol. TCP/IP is a set of standardized rules that allow computers to communicate on a network such as an internet.

The correct answer is the Flow Chart.

Key Points

• Flow Chart is a graphical representation of the algorithm.
• Graphic representation of the control logic of processing function or modules representing a system called a System flow chart.
• A flowchart is a graphical representation of an algorithm.
  • An algorithm is a set of specific steps that lead to a predefined goal.
  • A program on the other hand has a lot of other steps involved(or rather assumed) that are necessary for successful execution but not relevant to the algorithm.
• Hence, option 3 is correct.

​Additional Information

• Software is a collection of instructions and data that tell the computer how to work.
  • This is in contrast to physical hardware, from which the system is built and actually performs the work.
• Pseudocode is a term that is often used in programming and algorithm-based fields.
  • It is a methodology that allows the programmer to represent the implementation of an algorithm.
  • Simply, we can say that it's the cooked up representation of an algorithm.

The correct answer is Browsing a website, and Playing a Youtube video.

• PowerPoint was designed to facilitate visual demonstrations for group presentations.
• Presentations are arranged as a series of individually designed “slides” that contain images, text, or other objects. 
• PowerPoint allows the user to access the taskbar without ending the presentation.
• Playing a Youtube video: In PowerPoint, go to the slide where you want to insert the content. On the toolbar ribbon, select the Insert tab, select Video, and then select Online Video. The Insert Video dialog box opens. Paste the embed code in the box named From a Video Embed Code, and then press Enter.
• Browsing a website is also possible in the slide show of MS PowerPoint. Locate and select the Slide Options button in the bottom-left corner. Select Screen, then click Show Taskbar. Then choose a program you want to open, such as a web browser. When you're done, close the window or click the PowerPoint icon on the taskbar to return to the presentation.

Explanation:

Mollier diagram:

• Mollier chart is drawn between enthalpy (h) and entropy (s).
• The turbine output on the Mollier diagram is represented by the vertical straight line in ideal conditions. It is an Isentropic process.
• On Mollier diagram constant pressure line diverge from one another as shown in the figure.

From the first and second laws of thermodynamics, the following property relation was obtained,

Tds = dh – vdp

\({\left( {\frac{{\partial h}}{{\partial s}}} \right)_p} = T\)

This equation forms the basis of the h-s diagram of a pure substance, also called the Mollier diagram. The slope of an isobar on the h-s coordinates is equal to the absolute saturation temperature ( tsat + 273) at that pressure.

Mollier diagram is enthalpy (h) versus entropy (s) plot.

It consists of a family of constant pressure lines, constant temperature lines and constant volume lines plotted on enthalpy versus entropy coordinates.

The slope of the constant pressure line on an h-s curve is equal to absolute temperature and due to this reason, the constant pressure lines are of diverging nature in the superheated region.

The correct answer is Home Page.

Key Points

• A home page is the main web page of a website.
• The term can also refer to one or more pages always shown in a web browser when the application starts up.
  • In this case, it is also known as the start page.
• A home page is generally the main web page a visitor navigating to a website from a search engine will see, and it may also serve as a landing page to attract visitors.
• The home page is used to facilitate navigation to other pages on the site by providing links to prioritized and recent articles and pages, and possibly a search box.
  • For example, a news website may present headlines and first paragraphs of top stories, with links to full articles.

​Additional Information

• Web Page​:
  • A web page or webpage is a document, commonly written in HTML, that is viewed in an Internet browser.
  • A web page can be accessed by entering a URL address into a browser's address bar.
  • A web page may contain text, graphics, and hyperlinks to other web pages and files
• Desktop:
  • A desktop computer is a personal computer designed for regular use at a single location on or near a desk or table due to its size and power requirements.
  • The case may be oriented horizontally or vertically and placed either underneath, beside, or on top of a desk.

The correct answer is True.

• Concept:
  • In C programming language,
  • && represents a AND logic while II represents a OR logic.
  • Combinations for both the logic are listed below:
• Logical AND (&&)
  • false && false: false
  • false && true: false
  • true && false: false
  • true && true: true
• Logical OR (||)
  • false || false: false
  • false || true: true
  • true || false: true
  • true || true: true
• Calculation:
  • T&&T will give Ture
  • F&&T will give False
  • => True || False will give True
  • Hence answer is True.

The movement of symbols is as follows:

The symbol at position 1 will duplicate and move at position 9 and 6. The symbol at position 9 will duplicate and place at 4 and 3. The symbol at position 3 will move at position 5. The symbol at position 5 will move at position 7. The symbol at position 7 will move at position 1. The final figure will be as follows: 

Monitor:

• A computer monitor is an output device that displays information in a pictorial form. 
• The monitor displays the computer's user interface and open programs, allowing the user to interact with the computer, typically using the keyboard and mouse.

​Keyboard:

• A keyboard is an input device that contains many mechanical switches or push-buttons called "keys".
• It allows us to enter letters, numbers, and other symbols (called characters) into a computer. 

​Mouse:

• A computer mouse is a handheld hardware input device that controls a cursor in a GUI(graphical user interface)
• The mouse is used to move and select text, icons, files, and folders on our computer.

​Printer:

• A printer is an output device that prints paper documents.
• This includes text documents, images, or a combination of both.