Answer:
A & D
Explanation:
Wifi or IEEE 802.11a/n/g is a wireless network medium used for communication between devices in a network (or the internet). It is used to transfer video, text, graphic, audio and all other types of files.
Cellular is a mobile networking technology used to make wireless communication over a large area of land called cell, between devices in a network or a remote network.
Both cellular and wifi connections are used to synchronize smartphones to online accounts and allows for data backup and retrieval.
Answer:
FALSE
Explanation:
Because C1 and C2 implement the same interface, they both implement whichIsIt. The variable c is known as a polymorphic variable, meaning that it can change from being an C1 to a C2. So, the message c.whichIsIt( ); may invoke C1's whichIsIt or C2's whichIsIt. This can only be known at runtime.
Answer:
Computer memory is a generic term for all of the different types of data storage technology that a computer may use, including RAM, ROM, and flash memory. Some types of computer memory are designed to be very fast, meaning that the central processing unit (CPU) can access data stored there very quickly.
Answer:
The generic data structure of a n-dimensional array is a tensor.
An example with 3 dimension can be a cube that contains the following dimensions: users, items, time. That cube can represent the interactions of users with verifiied pages of public interests (influencers or company/media pages) in time slots (e.g. weekly timeslots).
Explanation:
You can represent in a sparse 3-dimensional array (tensor) the combinations of which user interacted with wich item in a given timeslow.
