Daily UPSC Prelims Current Affairs – January 5, 2023 [Mock Test]
January 12, 2023 January 13, 2023
1. Which of the following statements about standalone 5G network is/are correct?
- It uses existing 4G infrastructure.
- It offers higher speed and ultra-low latency.
Choose the correct answer using the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: B [Only 2]
Notes:- Standalone 5G uses the 5G New Radio (NR) access network which is a set of standards that replaces the LTE network 4G wireless communications standard.
- The non-standalone 5G, on the other hand, offers 5G radio signal using the existing 4G LTE core which means it is built over an existing 4G network while the standalone allows completely independent operation of a 5G service without any interaction with an existing 4G core.
- The non-standalone 5G can be rolled out faster as it uses the existing 4G infrastructure, however, when it comes to stability and speed, the standalone 5G is better.
- The standalone 5G model offers higher speed, ultra-low latency, wider coverage, better services, and higher stability compared to the NSA 5G model.
2. Consider the following statements:
- The “disturbed area” under the AFSPA was completely withdrawn in Manipur and Assam.
- The AFSPA was completely withdrawn in Tripura, Meghalaya and Mizoram.
Which of the statements given above is/are correct?
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: B [Only 2]
Notes:- The application of the “disturbed area” under the AFSPA has been extended by six months in 12 districts of Nagaland and Arunachal Pradesh and some parts of five other districts of the two states to facilitate anti-insurgency operations.
- The AFSPA will be extended for six months beginning October 1 in nine districts — Dimapur, Niuland, Chumoukedima, Mon, Kiphire, Noklak, Phek, Peren and Zunheboto — and 16 police stations in four other districts — Kohima, Mokokchung, Longleng and Wokha — of Nagaland.
- The AFSPA will continue for six more months in Tirap, Changlang and Longding districts and the areas falling within the jurisdiction of Namsai and Mahadevpur police stations in Namsai district of Arunachal Pradesh, bordering Assam.
- The AFSPA was completely withdrawn in Tripura in 2015, in Meghalaya in 2018 and in Mizoram in 1980s.
- The “disturbed area” was also partially withdrawn in Manipur and Assam too.
3. Consider the following statements:
- Heavy metals may be defined as elements with an atomic number larger than 30.
- Heavy metals like Cobalt, copper, zinc, and manganese are required in trace amount in human body.
Which of the statements given above is/are correct?
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2
Show Answer
Correct Answer: B [Only 2]
Notes:- Heavy metals may be defined as elements with an atomic number larger than 20 and an atomic density greater than 5 g cm-3that must possess metal-like characteristics. Example: arsenic, cadmium, chromium, copper, lead, manganese, mercury, nickel, uranium etc.
- There are some essential heavy metals which the human body requires in trace amounts such as Cobalt, copper, zinc, and manganese but in the excessive amount, it can be detrimental to health. The heavy metals found in drinking water such as lead, mercury, arsenic, and cadmium have no beneficial effects on our body. In fact, their accumulation inside the body can cause severe health problems.
