Question
Which of the following statements(s) is/are true in
respect of wireless technology? P: Bluetooth is a wireless technology which can be used to connect a headset to a mobile phone. Q: Bluetooth is a long-range wireless technology and is a low cost means of data transfer.Solution
As Bluetooth is a protocol for wireless communication over short distances. It was developed in the 1990s, to reduce the number of cables. Devices such as mobile phones, laptops, PCs, printers, digital cameras and video game consoles can connect to each other, and exchange information. This is done using radio waves. It can be done securely. Bluetooth is only used for relatively short distances, like a few metres.
What does the following code do?
x = [1, 2, 3]
y = [4, 5, 6]
z = x + y
Binary relationship has how many participating entities?
Which component of RDBMS allows users and applications to interact with the database through SQL queries?
Which circuit configuration has a single path for current flow?
Which type of tree structure is optimized for sequential access and range queries?
Simplify the following Boolean expression using Boolean algebra laws:
F = (A + B) * (A' + C) * (B + C)
What is the main purpose of a digital signature?
Which of the following is a key function of the network layer?
syntax of loops in shell scripting?
Default value of boolean variable in an array
