Thursday, 2 January 2020

Computer Networks Questions & Answers – Bluetooth

This set of Computer Networks Multiple Choice Questions & Answers (MCQs) focuses on “Bluetooth”.

1. An interconnected collection of piconet is called
a) scatternet
b) micronet
c) mininet
d) none of the mentioned
View Answer
Answer: a
Explanation: Piconet is the basic unit of bluetooth system having a master node and upto seven active slave nodes.
2. In a piconet, there can be up to ________ parked nodes in the net.
a) 63
b) 127
c) 255
d) 511
View Answer
Answer: c
Explanation: None.
3. Bluetooth is the wireless technology for
a) local area network
b) personal area network
c) both local area network and personal area network
d) none of the mentioned
View Answer
Answer: b
Explanation: None.
4. Bluetooth uses
a) frequency hoping spread spectrum
b) orthogonal frequency division multiplexing
c) time division multiplexing
d) none of the mentioned
View Answer
Answer: a
Explanation: None.
5. Unauthorised access of information from a wireless device through a bluetooth connection is called
a) bluemaking
b) bluesnarfing
c) bluestring
d) none of the mentioned
View Answer
Answer: b
Explanation: None.
6. What is A2DP (advanced audio distribution profile)?
a) a bluetooth profile for streaming audio
b) a bluetooth profile for streaming video
c) a bluetooth profile for security
d) none of the mentioned
View Answer
Answer: a
Explanation: None.
7. In the piconet of bluetooth one master device
a) can not be slave
b) can be slave in another piconet
c) can be slave in the same piconet
d) none of the mentioned
View Answer
Answer: b
Explanation: None.
8. Bluetooth transceiver devices operate in ______ band.
a) 2.4 GHz ISM
b) 2.5 GHz ISM
c) 2.6 GHz ISM
d) 2.7 GHz ISM
View Answer
Answer: a
Explanation: None.
9. The bluetooth supports
a) point-to-point connections
b) point-to-multipoint connection
c) both point-to-point connections and point-to-multipoint connection
d) none of the mentioned
View Answer
Answer: c
Explanation: None.
10. A scatternet can have maximum
a) 10 piconets
b) 20 piconets
c) 30 piconets
d) 40 piconets
View Answer
Answer: a
Explanation: None.

Friday, 20 December 2019

Daily updates 14 December 2019

State News

1. Virtual Police Station inaugurated at Andhra University

  • Chief Minister Y.S. Jagan Mohan Reddy inaugurated the Virtual Police Station at Andhra University. This is the first such facility in the State of Andhra Pradesh.
  • The AU facility is seen as a pilot project and will later be replicated at other educational institutions. The initiative is expected to help bridge the gap between students and the police department
  • The Virtual Police Station has been set up on the suggestion of Andhra University's Vice-Chancellor to make it easy for students to report their grievances.

Static/Current Takeaways Important For RRB NTPC/SSC CGL:

  • CM of Andhra Pradesh: YS Jaganmohan Reddy.
  • Governor of Andhra Pradesh: Biswa Bhusan Harichandan.

Agreements

2. Maldives signs contract with JV of Indian companies for development of Addu

  • Maldives government has signed a contract with a joint venture of Indian companies. The contract aims to prepare project report and the development of Addu, which is the second biggest city in the island nation.
  • The contract was signed L & T engineering limited and Lea associates south asia for the Addu Road and Reclamation Project. The project includes land reclamation, construction of roads and storm water drainage system in Addu.
  • This will upgrade existing infrastructure and mitigate the flood situation in Addu.
  • Financing of the project will be done by EXIM bank of India through line of credit of USD 800 million.

Summit and Conferences

3. Defence Minister chairs Parliament's meeting of Consultative Committee

  • Defence Minister Rajnath Singh chaired a meeting of the Consultative Committee of Parliament for the Ministry of Defence in New Delhi.
  • The subject of the meeting was Border Roads Organisation (BRO). During the meeting, BRO was appreciated for the in building border infrastructure and contributing to the improvement of lives of people residing in the border areas.

4. National Symposium of Heads of Police Training Institutions held in New Delhi

  • The 37th National Symposium of Heads of Police Training Institutions held in New Delhi. It Symposium was organized by Bureau of Police Research & Development (BPR&D).
  • The theme of the Symposium was ‘Optimal Utilization of Resources-Through Sharing and Networking’.
  • A Directory of Indian Police Training Institutions (DIPTI) which has information on the resources of around 300 Police training institutions all over the country, was also released during the event.

Sports News

5. FIH unveils new world ranking system for 2020

  • The International Hockey Federation unveiled a new world ranking system for 2020 in Lausanne, Switzerland. The new method will come into effect from the 1st January 2020.
  • The new ranking will be match-based instead of tournament-based calculation.
  • The new model is expected to remove the subjectivity surrounding continental weighing by creating a system which is fair to all. The outgoing world ranking system was in existence since 2003. It was originally devised to allocate teams into pools at tournaments.

6. Rohit Sharma becomes brand ambassador of La Liga in India

  • The top tier of Spanish club football "La Liga" has announced cricketer Rohit Sharma as its brand ambassador in India.
  • Rohit Sharma is the first non-footballer in the 90 year-old history of the league to have become a brand ambassador.
  • The top tier of Spanish club football has been ramping up its fan base in India through a series of initiatives. These initiatives includes grassroot development programme like La Liga Football Schools and a digital broadcast deal with Facebook.

Obituaries

7. Veteran Telugu actor and writer Gollapudi Maruti Rao passes away

  • Former Nandi Award winner and renowned Telugu actor and writer Gollapudi Maruti Rao passed away recently. He enthralled people with his writings and acting for several decades and also acted in around 250 films in about four decades.
  • He was a multi-faceted personality as he was a journalist, playwright, writer, actor and television personality.
  • Some of his memorable films as an actor include 'Intlo Ramayya, Veedhilo Krishnayya', 'Challenge', 'Samsaram oka Chadarangam', 'Aditya 369' and 'Leader'.

Miscellaneous

8. Amazon's Audible launches app "Audible Suno" in India

  • Amazon’s audiobook company Audible has launched a new app "Audible Suno" in India. This app features original audio series which aims to expand Audible's reach in India's highly competitive digital entertainment and streaming space.
  • The platform features hundreds of hours of Audible’s original audio series across a plethora of genres, steered by entertainers such as Amitabh Bachchan, Nawaazuddin Siddiqui, Anurag Kashyap, Tabu, Neena Gupta and Vir Das.

Static/Current Takeaways Important For RRB NTPC/SSC CGL:

  • CEO and Founder of Audible: Don Katz.

Daily updates 13 December 2019

National News

1. ISRO begins preparations for setting up 3rd rocket launchpad

  • Indian Space Research Organization (ISRO) has begun preparatory works for setting up a 3rd rocket launchpad in the small coastal hamlet of Kulashekhrapattinam in the Thuthukudi district of Tamil Nadu.
  • At present, the Indian Space Research Organization (ISRO) has two launch pads at Sriharikota in Andhra Pradesh.
  • The demand for additional launch pads has arisen as a result of the increase in the number of satellite launches from India, both for domestic and international customers.

Static/Current Takeaways Important For RRB NTPC/SSC CGL:

  • ISRO Director: K.Sivan; Headquarters: Bengaluru; Established: 1969.

2. National Tribal Dance Festival to be held in Raipur

  • National Tribal Dance Festival will be held in Chhattisgarh's capital Raipur from December 27 to 29. In the event, international folk artists from 23 states and six other countries are expected to take part and portray their respective tribal folk culture.
  • Nearly 1,400 artists belonging to 151 art troupes from 23 states and guest artists from six countries including Sri Lanka, Belarus, Uganda and Bangladesh will participate in the three-day programme.

Static/Current Takeaways Important For IBPS SO 2019:

  • CM of Chhattisgarh: Bhupesh Baghel; Governor of Chhattisgarh: Anusuiya Uikey.

International News

3. US, Mexico, Canada sign USMCA trade deal

  • The representatives from the United States, Mexico and Canada inked a revamped version of their regional trade pact after months of negotiations.
  • The United States-Mexico-Canada Agreement (USMCA) will now go to the countries' legislatures for final approval.
  • The accord is meant to the North American Free Trade Agreement (NAFTA), a deal in place since 1994.

State News

4. Andhra Pradesh Cabinet approves Disha Bill 2019

  • The Andhra Pradesh Cabinet approves the A.P. Disha Bill, 2019 (A.P. Criminal Law (Amendment) Bill, 2019) paving the way for awarding the death penalty for the offences of rape and gang-rape and expediting the verdict in trials of such cases to 21 days.
  • The Cabinet also gave its nod for introduction of the A.P. Special Court for Specified Offences against Women and Children Bill, 2019, for dealing with offences against women and children, including rape and gang-rape, acid attacks, stalking, voyeurism, sexual harassment and cases under the Protection of Children from Sexual Offences (POCSO) Act.

Static/Current Takeaways Important For RRB NTPC/SSC CGL:

  • CM of Andhra Pradesh: YS Jaganmohan Reddy.
  • Governor of Andhra Pradesh: Biswa Bhusan Harichandan.

Awards

5. Greta Thunberg named Time Person of the Year for 2019

  • Sweden's Greta Thunberg has been named as Time magazine's Person of the Year for 2019.
  • Greta Thunberg is the Swedish schoolgirl who inspired a global movement to fight climate change and became popular with the "#FridaysForFuture".
  • She is the youngest person to be chosen by the magazine in a tradition that started in 1927.
  • TIME is also expanding Person of the Year to reflect the full range of subjects that TIME covers.
  • For the first time, TIME has chosen the most influential person in a range of fields
S.No.NameProfessionCategory
1Greta ThunbergClimate activistPerson of the Year
2Bob IgerChairman and CEO of The Walt Disney CompanyBusinessperson of the Year
3The Public ServantsFederal workers of the USGuardians of the Year
4United States women's national soccer teamWomen’s SoccerAthlete of the Year
5Melissa Jefferson (Lizzo)SingerEntertainer of the Year

6. Rani Rampal, Saurabh Chaudhary Win Top Honours at FICCI India Sports Awards

  • Indian women's hockey team captain Rani Rampal and ace pistol shooter Saurabh Chaudhary won the Sports Person of the Year awards at the FICCI India Sports Awards 2019.
  • The FICCI India Sports Awards are an attempt by FICCI to acknowledge and recognise the contribution of sportspersons and various stakeholders who deliver excellent results throughout the year.
  • Rani played a crucial role in India's qualification for the 2020 Tokyo Olympics, scoring the winning goal in the two-legged qualifier against the US in November.
  • Saurabh, on the other hand, is touted as India's biggest hope for a medal in shooting in Tokyo. He won gold at the 2018 Asian Games and has since won a number of individual and team honours at shooting World Cups.

7. Gurgaon-based startup won ‘Space Oscar’ award

  • The Gurugram-based startup blue Sky Analytics has created an application called ‘Zuri’ that won the Copernicus Masters Award also called Space Oscars, under the Social Entrepreneurship category.
  • The award was given by the Earth observation program managed by the European Commission (EU) in partnership with the European Space Agency (ESA).
  • The application uses satellite data to provide improved monitoring, supply chain and pricing analysis as well as the allocation of crop waste to be used as raw materials in other industries.
  • The application includes an AI (Artificial Intelligence)- based tool to measure and monitor farm fires and stubble burning across India, million tons of crops are being burnt in India on farms to clear the field for new crops every winter, as a result releasing massive amounts of greenhouse gases which have led to increased level of pollution in New Delhi and other parts of the country.

8. FICCI India Sports Award 2019

  • The FICCI India Sports Awards 2019 has been awarded to Railway Sports Promotion Board under the category of Best Company Promoting Sports.
  • Railway Sports Promotion Board has been awarded for its immense contribution in the field of providing sports eco-system within the organization for the budding sports athletes to nurture and expose themselves to their optimum limits and bring laurels to the nation.
  • The FICCI India Sports Awards 2019, an attempt by FICCI to acknowledge and recognize the contribution of sportspersons and various stakeholders who deliver excellent results during the year.

Static/Current Takeaways Important For RRB NTPC/SSC CGL:

  • FICCI stands for Federation of Indian Chambers of Commerce and Industry.
  • Headquarters of FICCI: New Delhi; FICCI established: 1927.

Agreements

9. Mongla and Chattogram declared as Ports of Call under the “Coastal Shipping Agreement'

  • The Ministry of Shipping (MoS) announced that Mongla and Chattogram (Both in Bangladesh) have been declared as Ports of Call under “Coastal Shipping Agreement” between India & Bangladesh.
  • The Port of Mongla is declared as Port of Call under PIWT&T (Protocol on Inland Water Transit and Trade ) and Chattogram port is not part of PIWT&T.
  • An MoU (Memorandum of Understanding), agreement and Standard Operating Procedure (SOP) on the use of Chattogram Port & Mongla Ports for goods movement between India and Bangladesh has been signed between both the nations.
  • The Ports of Call in India are Kolkata (West Bengal), Haldia (West Bengal), Pandu, Karimganj (Assam), Silghat (Assam), Dhubri (Assam).

Static/Current Takeaways Important For RRB NTPC/SSC CGL:

  • Minister of State (Independent Charge) of the Ministry of Shipping: Mansukh L. Mandaviya.

Ranks and Reports

10. Nirmala Sitharaman 34th among world's 100 most powerful women: Forbes

  • Finance Minister Nirmala Sitharaman has been ranked 34th by Forbes in ‘The World's 100 Most Powerful Women’. HCL Corporation CEO and Executive Director Roshni Nadar Malhotra and Biocon Founder Kiran Mazumdar Shaw are two other Indians who also featured in the above list.
  • The Forbes 2019 list of ‘The World's 100 Most Powerful Women’ has been topped by German Chancellor Angela Merkel, followed by President of the European Central Bank Christine Lagarde in the 2nd spot and Speaker of the US House of Representatives Nancy Pelosi, ranked 3rd. Bangladesh's Prime Minister Sheikh Hasina also featured on the list on the 29th position.
S.No.NameCountry
1Angela MerkelGermany
2Christine LagardeFrance
3Nancy PelosiUnited States
4Ursula von der LeyenBelgium
5Mary BarraUnited States
6Melinda GatesUnited States
7Abigail JohnsonUnited States
8Ana Patricia BotínSpain
9Ginni RomettyUnited States
10Marillyn HewsonUnited States
34Nirmala SitharamanIndia
54Roshni Nadar MalhotraIndia
65Kiran Mazumdar-ShawIndia
100Greta ThunbergSweden

Schemes and Committees

11. Puducherry government unveils start-up policy

  • The Puducherry government unveiled a start-up policy. The policy, launched by Minister for Industries M.O.H.F Shahjahan, aims to create a corpus fund of ₹10 crores to support the setting up of start-up incubators and to develop co-working spaces.
  • The department plans to provide a grant of ₹3 lakh to projects recommended by incubators established by the government/private sector/academic institutions as a start-up grant.
  • The committee of experts constituted by the government under the Innovation and Entrepreneurship Development Committee will approve of the projects and monitor their progress.

Static/Current Takeaways Important For IBPS SO 2019:

  • Lt. Governors Puducherry: Dr Kiran Bedi.

Summits and Conferences

12. International Seminar on Climate Smart Farming Systems begins in New Delhi

  • The  ‘International Seminar on Climate Smart Farming Systems’ for BIMSTEC countries began in New Delhi.
  • The objective of this International Seminar is to have experience sharing to enable improvement of tropical smallholder farming systems for greater productivity and resilience to climate change through ecological approaches.
  • Some of the success stories shall be shared as case studies for the benefit of the BIMSTEC countries.

Static/Current Takeaways Important For RRB NTPC/SSC CGL:

  • The BIMSTEC member states ‘Bangladesh, India, Myanmar, Sri Lanka, Thailand, Nepal and Bhutan are among the countries dependent on the Bay of Bengal.
  • The Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation (BIMSTEC).
  • This sub-regional organisation came into being on June 6, 1997, through the Bangkok Declaration.