IBM A1000-136 Practice Exam: Test Your Knowledge 2025

What is the fundamental unit of quantum information that can exist in a superposition of states?

Which quantum phenomenon allows two or more qubits to have correlated states such that measuring one qubit instantaneously affects the state of the others?

A developer is designing a quantum circuit and needs to create a superposition state from the |0⟩ state. Which single-qubit gate should they apply?

In IBM Quantum Composer, what is the primary purpose of the visualization feature that displays the statevector?

What is the main advantage of quantum algorithms over classical algorithms for certain computational problems?

Which IBM Qiskit component is specifically used for building and manipulating quantum circuits?

A quantum researcher needs to implement Grover's algorithm to search an unsorted database of N items. What is the approximate number of iterations required?

What does the term 'quantum decoherence' refer to in quantum computing?

A developer is working with IBM Quantum Lab and needs to execute a quantum circuit on actual quantum hardware. Which method should they use to submit the job?

In the context of quantum gates, what is the purpose of the CNOT (Controlled-NOT) gate?

Which quantum algorithm is specifically designed to find the period of a function and is a key component of Shor's factoring algorithm?

A quantum circuit designer notices that their circuit has gates that are not natively supported by the target IBM quantum hardware. What process automatically converts the circuit to use only native gates?

What is the maximum probability of measuring a qubit in the |1⟩ state if it's in the quantum state (1/√2)|0⟩ + (1/√2)|1⟩?

A company wants to simulate a quantum system with 30 qubits on a classical computer for testing purposes. What is the primary challenge they will face?

In the Variational Quantum Eigensolver (VQE) algorithm, what is the role of the classical optimizer?

When designing a quantum circuit in IBM Quantum Composer, what happens when a measurement operation is applied to a qubit in superposition?

A developer needs to verify that their quantum circuit implementation is correct before running on actual hardware. Which IBM Qiskit simulator provides a noise-free ideal simulation?

What is the primary application domain where quantum annealing algorithms, such as those implemented on D-Wave systems, show the most promise?

A quantum circuit contains a sequence of gates that ultimately returns all qubits to their initial state. What property does this circuit demonstrate?

In quantum error mitigation techniques available on IBM Quantum Platform, what is the purpose of measurement error mitigation?