Which of the following are components of Geographic Information System (GIS)? 1. Data 2. Hardware 3. Software 4. People Select the answer using the code given below.
- A.1 and 4 only
- B.2 and 3 only
- C.1, 2 and 3 only
- D.1, 2, 3 and 4
Correct answer
Explanation
The correct answer is D, 1, 2, 3 and 4. A GIS needs data, hardware, software and people working together; methods are usually named as the fifth component.
A Geographic Information System captures, stores, analyses and displays information tied to locations on the Earth. Hardware is the computers, servers, GPS units and scanners it runs on. Software is the programs that store, query and map the data. Data, the most important part, is the spatial data (raster and vector layers) and the attribute tables that describe each feature. People are the users and specialists who design the system, manage it and interpret its results, and methods are the procedures they follow. GIS is used in urban planning, disaster management, agriculture and defence.
A is wrong because it leaves out hardware and software, without which no GIS can run. B is wrong because it leaves out data and people. C is wrong because it leaves out people, who are an essential component.
Exam tip: five components of GIS: hardware, software, data, people and methods.
Practice Questions
View allConsider the following countries:
1. Italy
2. Japan
3. Nigeria
4. South Korea
5. South Africa
Which of the above countries are frequently mentioned in the media for their low birth rates, or ageing population or declining population ?
- A.1, 2 and 4
- B.1, 3 and 5
- C.2 and 4 only
- D.3 and 5 only
Show answer
Italy, Japan and South Korea all have fertility rates far below the replacement level of about 2.1 children per woman, ageing people and shrinking numbers.
Read the full explanation →Consider the following statements about river bridges connecting India with neighbouring countries :
1. 'Maitri Setu', built over Feni river, connects Ramgarh in India with Sabroom in Bangladesh.
2. Jhulaghat suspension bridge connects India with Myanmar.
3. Mechi bridge and its approaches connect Panitanki Bypass in India with Kakarvitta in Nepal.
Which of the statements given above is/are correct?
- A.1 and 2
- B.2 and 3
- C.1 only
- D.3 only
Show answer
The Mechi bridge links Panitanki in India with Kakarvitta in Nepal; the other two statements get the places or the country wrong.
Read the full explanation →With reference to 'palm oil', consider the following statements:
1. The palm oil tree is native to Southeast Asia.
2. The palm oil is a raw material for some industries producing lipstick and perfumes.
3. The palm oil can be used to produce biodiesel.
Which of the statements given above are correct?
- A.1 and 2 only
- B.2 and 3 only
- C.1 and 3 only
- D.1, 2 and 3
Show answer
Palm oil is used in cosmetics such as lipstick and perfume and as a feedstock for biodiesel, but the oil palm is native to West Africa, not Southeast Asia.
Read the full explanation →What is common to the places known as Aliyar, Isapur and Kangsabati?
- A.Recently discovered uranium deposits
- B.Tropical rain forests
- C.Underground cave systems
- D.Water reservoirs
Show answer
Aliyar, Isapur and Kangsabati are all dams with reservoirs built for irrigation in different parts of India. The Aliyar dam stands on the Aliyar river near Pollachi in Coimbatore district of Tamil Nadu, at the foot of the Anamalai hills, and is part of the Parambikulam-Aliyar project.
Read the full explanation →India is one of the founding members of the International North-South Transport Corridor (INSTC), a multimodal transportation corridor, which will connect
- A.India to Central Asia to Europe via Iran
- B.India to Central Asia via China
- C.India to South-East Asia through Bangladesh and Myanmar
- D.India to Europe through Azerbaijan
Show answer
The INSTC links Indian ports by sea to Iran and then by rail and road northwards to Central Asia, Russia and on to Europe.
Read the full explanation →