Answer:
C. NFC
Explanation:
NFC stands for Near Field Communication. NFC is been embedded in recent mobile device (ranging from phone to tablet) to ease payment. NFC is a short-range high frequency wireless communication technology that enables the exchange of data between devices over about a 10 cm distance.
From the option, Bluetooth look like a probable answer but when they are both compared; we realized that NFC has a shorter set-up time over bluetooth and is therefore faster than bluetooth.
Answer:b)Recognition
Explanation: Recognition method is the technique which is based upon the similarity of the structure.It basically compares between the received format and the format of the reference on the basis of their structure.It is considered as a good method of the retrieving the image or format which is in storage. This usually results in opting the correct answer or option.
Therefore, the correct answer is option (b).
Answer:
Option B is correct.
Explanation:
The drawback to choosing face-to-face contact across certain platforms of interactions is that it is always impracticable to plan a schedule for face-to-face conversation because mostly the time of both participants should not be the same, sometime the one person wait for the other person or the other person wait for 1st one.
- The following problems occur through the internet, the system configuration or the browsers, application configuration.
- So, the following are the reasons that describe the other options are not appropriate according to the scenario.
Answer:
Explanation:
( n cards are there initially )
we pick out the first card in random it takes n-1 comparisons to figure out
its Equivalence card - n-1 steps
Two cards have been eliminated ( this leaves us with 2 and n-2 cards)
we pick out the 2nd card in random it takes n-3 comparisons to figure out
its Equivalence card - n-3 steps
we continue to do this.. till all cards are exhausted ( leaves us with 2
and n-4 cards again)
the last comparison will
have
- n-(n-3)
the sum of all these steps - (n-1) + (n-3) + (n-5) + .........+
(n-(n-3))
if you draw this in the form of a tree.
n - n
2
n-2 - n
2
n-4 - n-2
2
n-6 - n-4
2
n-8 - n- 6
the height of the tree will be log n , sum @ each level is at most n
Answer:
The correct answer to the following question will be "Physical Layer".
Explanation:
- The lowest layer of the OSI reference model is the physical layer. It's in charge of having to send bits from one desktop to the next.
- This layer isn't acquainted with the interpretation of the parts and is concerned with setting up a physical wireless connection and sending and receiving signals.
- This layer relies on aspects of the hardware, such as wires, transmitters, and network interface tokens.
Therefore, it will be the right answer.
