Which of the following statements is true for a doubly linked list?
a. It has at least two pointers in each node.
b. It has a backup of the data.
c. It stores the elements in a sorted manner.
d. It has twice the number of nodes as a normal linked list.
a. It has at least two pointers in each node.
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Indicate whether the statement is true or false
____ is implemented through classes and includes the specification of both properties and methods.
A. Inheritance B. Encapsulation C. Abstraction D. Polymorphism
Which of the following is true about the roles and features in a base Nano Server installation?
A. The base installation includes DNS and DHCP roles B. The base installation has no roles and features installed C. The base installation includes the Hyper-V role D. The base installation has many roles and features installed
Solve the following system using the linear combination method. 
A. 
B. 
C. 
D. infinite number of solutions
E. no solution