Question Discussion & Solution

In this question shows that in option 1, 2 and 4 we add three in first letter we get second letter but in option 3 we add 1 in the first letter we get second letter. 

A - D : Difference of two letter

S - V : Difference of two letter

G - H : No letter in between

L - O : Difference of two letter

G-H is different from others.

Hence, option 3 is the correct answer. 

The correct answer is option 3.

Concept:

A semaphore is a variable or abstract data type used to control access to a common resource by multiple threads and avoid critical section problems in a concurrent system such as a multitasking operating system.

Explanation:

Starvation is a problem that happens when high-priority processes continue to run while low priority processes are halted indefinitely. A continual stream of higher-priority processes in a densely loaded computer system can prevent a low-priority operation from ever receiving the CPU.

Indefinite blocking or starvation is a situation in which processes wait indefinitely within the semaphore. Indefinite blocking may occur if we remove processes from the list associated with a semaphore in LIFO (last-in, first-out) order.

Hence the correct answer is starvation.

Additional InformationCritical section:

 The critical section is the section of code in which processes access and write to shared resources such as common variables and files. Because processes run continuously, any process can be interrupted in the middle of its execution.

The correct answer is Dot Matrix.

Important Points

• Impact printer
  • Impact printer refers to a class of printers that work by banging a head or needle against an ink ribbon to make a mark on the paper.
  • The three most common forms of impact printers are:
    • Dot-matrix.
    • Daisy-wheel.
    • Line printers.

Key Points

• Dot-matrix Printers 
  • The technology behind dot-matrix printing is in such a way that the paper is pressed against a drum (a rubber-coated cylinder).
  • The electromagnetically-driven printhead moves across the paper and strikes the printer ribbon situated between the paper and printhead pin.
  • The impact of the printhead against the printer ribbon imprints ink dots on the paper which create human-readable characters.

Additional Information

• Laser Printer
  • ​A laser printer is a printer that uses a focused beam of light to transfer text and images onto paper. 
• Inkjet printer
  • ​Inkjet printers, as the name implies, use ink to print text, graphics, and images onto various types of paper. 
  • Inkjet printers, cartridges, and supplies are more widely available therefore cheaper than their thermal printer.
• Thermal printer​
  • Thermal printers use tiny heating elements to activate or transfer pigments.
  • Thermal printers are used most commonly to create labels, safety signs.

The correct answer is Kannauj.

Important Points

Harshavardhana was an Indian Emperor, who ruled over the northern parts of India from 606 A.D to 647 A.D.

• His earliest capital was Thaneswar, present-day Haryana.
• After his accession, King Harshavardhan united the two kingdoms of Thanesar and Kannauj.
• He also shifted his capital from Thanesar to Kannauj.

Additional Information

In the 7th Century CE, the capital of Harshavardhana's Empire was Kannauj.

• In general, there was prosperity within the empire.
• Agriculture, industries and trade, both internal and external, were in a flourishing condition.
• Cities like- Peshawar and Taxila in the North-West were, of course, destroyed by the invasions of the Hunas and Mathura and Pataliputra had lost their previous significance, but Prayag (Allahabad), Banaras and Kannauj were prosperous cities within the empire.
• In the 7th century CE, the capital city, Kannauj was an extensive, prosperous and well-protected city. 
  • It had large buildings, beautiful gardens and swimming-pools. It was inhabited by the rich, cultured and highly learned people.

The correct answer is First.

• In the year 2017-18, Rajasthan was the largest millet producing state of India.

Key Points

• Rajasthan was followed by Maharashtra and Karnataka.
• The year 2023 will be observed as the International Year of Millets. 
• The Central Government declared 2018 as the year of millets. 
• Millet Mission comes under the National Food Security Mission (NFSM) which was launched in October 2007. 
• Millets include Jowar and ragi etc.

Additional Information 

• Types of Crops in India:
  • Kharif: Sown in June/July, harvested in September/October, e.g., rice, jowar, bajra, ragi, maize, cotton, and jute.
  • Rabi: Sown in October/December, harvested in April/May, e.g., wheat, barley, peas, rapeseed, mustard grains.
  • Zyad: They are raised between April/June, e.g., melons, watermelons, cucumbers, toor, leafy and other vegetables.