Question Discussion & Solution

The correct answer is cookie.

Key Points

• A cookie is a small text file (up to 4 KB) created by a website that is stored in the user's computer temporarily for only that session or permanently in storage.
  • Cookies provide a way for the website to recognize you and track your preferences.
  • Cookies are typically used to "maintain the state" of the browser session. For example, users can place items in a shopping cart, switch to another page or another site, and when they return, the site recognizes them and the current state of the cart.
  • Cookies consist of a series of URLs (addresses) for which they are valid. When the web browser or other HTTP application again sends a request to the webserver containing those URLs, it sends it along with the associated cookies.
  • For example, if your user ID and password are stored in a cookie, this saves you from typing the same information over and over again the next time you access that service.
  • Cookies allow the website to customize the pages and create a custom experience for each individual.

Additional Information

• Malware
  • Malware is malicious software intended to cause damage to a computer or network.
  • Types of malware include viruses, worms, spyware, and ransomware.
  • Malware can find its way onto computers when a user clicks a link or email attachment that installs malicious software.
• Bug
  • A bug computer definition is referred to as a failure or a flaw in the software program.
  • A Bug produces an incorrect or undesired result that deviates from the expected result or behaviour.
  • When you add two numbers using this app and if it shows you a wrong total, then we can say this app has a bug.
• Cache
  • The cache is the temporary memory officially termed "CPU cache memory".
  • "Cache" is also used to refer to any temporary collection of data, either in hardware or software.

The correct answer is a Business database.

Key Points

Business Database:

• A business database contains business customers’ past purchases; past volumes, prices, and profits.
•  It also contains buyer team remembers names (and ages, birthdays, hobbies, and favorite foods); status of current contacts; an estimate of supplier’s share of the customer’s business; competitive suppliers; assessment of competitive strengths and weakness in selling and servicing the account; and relevant customer buying practices, patterns, and policies.
• It is considered as a cloud where all the information is stored and kept for use.

Logic:

Almirah, Safe, and Cupboard can be closed. They have doors whereas Rack is an open framework.

Important PointsRack means a framework, typically with rails, bars, hooks, or pegs, for holding or storing things.

Hence, rack is the odd one out.

Clearly, out of every 11 persons there is 1 teacher

So, Number of teachers = 550 ÷ 11 = 50

The correct answer is Virus.

• A disruptive program that spreads from program to program or from disk to disk is known as a Virus.
• A computer virus is designed to spread from host to host and has the ability to replicate itself. 
• When this replication succeeds, the affected areas are then said to be "infected" with a computer virus.
• A virus operates by inserting or attaching itself to a legitimate program or document that supports macros in order to execute its code.
• In the process, a virus has the potential to cause unexpected or damaging effects, such as harming the system software by corrupting or destroying data.
• Once a virus has successfully attached to a program, file, or document, the virus will lie dormant until circumstances cause the computer or device to execute its code.