Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
Machine-to-machine (M2M) communications will likely to have a bearing on the development of which of the following in India?
1 and 3 only
2 and 4 only
1 and 2 only
1, 2, 3 and 4
How are Content delivery networks (CDN), on the internet, useful?
1) They reduce latency and congestion and improve the overall efficiency in the delivery of internet traffic.
2) They offer a Secure Socket Layer for communication between various parties on the web.
3) They create Virtual Private Networks (VPN) on servers that can be only accessed by a dedicated key.
Select the correct answer using the codes below.
1 only
2 and 3 only
None of the above
What is the difference between the two technologies of Free space optical (FSO) communication and Visible light communication (VLC)
1) FSOcommunication is not constrained to visible light as in the case of VLC.
2) FSO often uses LEDs rather than laser diodes that are used in VLCs for transmission.
Which of the above is/are correct?
2 only
Both 1 and 2
None
In the context of cyber security, what is a DDoS Attack?
Secretly relaying and possibly altering the communication between two parties who believe they are directly communicating with each other
Attempt to obtain sensitive information by disguising as a trustworthy entity in an electronic communication
An attempt to make an online service unavailable by overwhelming it with traffic from multiple sources
An Attack intended to redirect a website's traffic to another fake site.
What are the qualifying features of a Crypto-currency?
1) It does not have real monetary value in the market.
2) It is not owned or controlled by any institution.
3) It allows transacting parties to remain anonymous.
4) It is a virtually held asset.
2, 3 and 4 only
3 and 4 only
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