Intel Interview Questions and Answers for Freshers

OOP in C++ is based on concepts like encapsulation, inheritance, polymorphism, and abstraction for better code organization.

• Encapsulation: Bundling data and methods in classes. Example: class Car { private: int speed; public: void setSpeed(int s) { speed = s; }};

• Inheritance: Deriving new classes from existing ones. Example: class ElectricCar : public Car {}; // ElectricCar inherits from Car

• Polymorphism: Ability to...read more

Computer cache performance refers to the efficiency of the cache memory in storing and retrieving data for the CPU.

• Cache performance is measured by hit rate, miss rate, and latency.

• A higher hit rate indicates better performance as more data is found in the cache.

• Cache misses result in slower performance as data needs to be retrieved from main memory.

• Latency refers to the time it takes to access data in the cache.

• C...read more

Clock gating is a power-saving technique used in digital design to disable the clock signal to certain parts of a circuit when they are not in use.

• Clock gating helps reduce power consumption by stopping the clock signal to unused parts of the circuit.

• It is achieved by inserting logic gates in the clock signal path to control when the clock is allowed to reach certain elements.

• Clock gating can be implemented at dif...read more

If the circuit of an inverter is inverted, it will act as a buffer.

• Inverting an inverter circuit essentially cancels out the inversion, making it act as a buffer.

• The output will be the same as the input signal, with no inversion.

• This can be useful in certain signal processing applications where a non-inverted signal is needed.

Left shift 1011, xor connected to first and last bit, clk 1111 will be there when 1011 is shifted left.

• Perform left shift operation on 1011: 1011 << 1 = 0110

• XOR the first and last bit of the result: 0 XOR 0 = 0

• The clock signal 1111 will be present when the result of the XOR operation is 0

Verilog code for D flip-flop (DFF) is a fundamental building block in digital design.

• Use always block to describe the behavior of DFF

• Use non-blocking assignment to update the output based on the input

• Include a clock signal to trigger the update of the output

• Example: always @(posedge clk) begin q <= d; end