C1000-112 exam

What does the Bloch sphere represent in quantum computing?A . A visual representation of a qubit's stateB . A quantum error correction techniqueC . A type of quantum algorithmD . A quantum encryption methodView AnswerAnswer: A

What is the resultant gate when we apply three Hadamard gates (in series) in the single-qubit circuit?A . I-gateB . H-gateC . X-gateD . Y-gateView AnswerAnswer: B

Predict the output of counts in the below-given snippet: q = QuantumRegister(2,'q') c = ClassicalRegister(2,'c') qc = QuantumCircuit(q,c) qc.h(0) qc.h(1) qc.measure([0,1],[0,1]) backend = BasicAer.get_backend('qasm_simulator') job = execute(qc, backend, shots=100) counts = job.result().get_counts()A . B . C . D . E . View AnswerAnswer: C

In quantum computing, what does the term "quantum supremacy" refer to?A . Achieving ultimate quantum error correctionB . Superior speed of quantum computers over classical onesC . Ability to create quantum entanglementD . Advanced quantum cryptography techniquesView AnswerAnswer: B

Which one of the below is the noisy quantum circuit simulator backend?A . qasm_simulatorB . statevector_simulatorC . qasm_simulatorD . Aer_simulatorView AnswerAnswer: A

How does the storage of information differ between classical and quantum systems?A . Classical systems can store infinite amounts of informationB . Quantum systems have limited storage capacityC . Both systems have similar storage capacitiesD . Quantum systems can store more information due to qubit propertiesView AnswerAnswer: D

What would be the fidelity result(s) for these two operators, which differ only by global phase? op_a = Operator(XGate()) op_b = numpy.exp(1j * 0.5) * Operator(XGate())A . state_fidelity() of 1.0B . state_fidelity() and average_gate_fidelity() of 1.0C . average_gate_fidelity() and process_fidelity() of 1.0D . state_fidelity(), average_gate_fidelity() and process_fidelity() of 1.0View AnswerAnswer:...

What is the output of the result in the below snippet? ghz = QuantumCircuit(3) ghz.x(0) ghz.h(0) ghz.cx([0,0],[1,2]) ghz.measure_all() backend_qasm = BasicAer.get_backend('qasm_simulator') job = execute(ghz, backend_qasm,shots=1024) result = job.result().get_counts()A . {'111': 300, '000': 724}B . {'100': 514, '010': 510}C . {'100': 253, '010': 261, '111': 253, '000': 261}D . {'000': 512,...

In a quantum circuit, what does applying a controlled-U gate mean?A . Applying an unknown quantum operationB . Applying a controlled phase shift operationC . Performing an unconditional operation on a qubitD . Implementing a controlled NOT operationView AnswerAnswer: B

Given the state vector represented by this Bloch sphere of single bit quantum circuitqc, please choose the operations. Which would lead to this state by assuming the quantum circuit is initialized to |0> (select any 3) A . qc.h(0)B . qc.h(0) qc.x(0)C . qc.ry(math.pi / 2, 0) qc.x(0)D . qc.rx(math.pi,...