The first operation of a queue is similar to the ______ operation of a stack
a) push
b) pop
c) isEmpty
d) size
e) peek
e) peek
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Explain the use of the following notation in a C++ program:
``` template< typename T > Array< T >::Array( int s ) ```
A customer signed up for the mobile pay service to use with their first generation smartphone but it does not work at any place that supports the mobile pay service. Which of the following is missing from the customer's smartphone?
A. RFID B. IMSI C. NFC chip D. Bluetooth
A(n) ____________________ computer is a computer that uses light, such as from laser beams or infrared beams, to perform digital computations.
Fill in the blank(s) with the appropriate word(s).
A ________ is named after a housing construction feature that slows the spread of fires from house to house
A) fire extinguisher B) firewall C) firehouse D) firebreak