C1000-112 by IBM Valid Free Exam Practice Test

Question 1

In the below code, which of the following statement is non-unitary?
qc= QuantumCircuit(2,2)
qc.x(0)
qc.y(1)
qc.z(1)
qc.measure([0,1],[0,1])

A. qc.z(1) B. qc.measure([0,1],[0,1]) C. qc.y(1) D. qc.x(0)

Correct Answer: B

Question 2

What is the primary advantage of using BasicAer simulators in Qiskit?

A. Fast and efficient simulation of quantum circuits B. Execution on actual quantum hardware C. Simulating quantum error correction codes D. Higher qubit capacity compared to other simulators

Correct Answer: A

Question 3

Which of the following gates act as hermitian opeartors? (select 3)

A. X-gate B. T-gate C. Z-gate D. S-gate E. H-gate

Correct Answer: A,C,E

Question 4

What is the primary function of visualizations in quantum computing?

A. To represent classical bits as qubits in quantum systems B. To simplify mathematical equations in quantum algorithms C. To provide a graphical representation of quantum states and operations D. To enhance the aesthetic appeal of quantum algorithms

Correct Answer: C

Question 5

What is barrier instruction between the H-gates in the below quantum circuit do?

A. It won't simplify the circuit between the two H-gates B. It is used for better circuit visualization C. It is used for circuit optimization D. It joins both H-gates and executes them.

Correct Answer: A

Question 6

What does a Qasm file typically contain?

A. Digital images representing qubit states B. Quantum circuit descriptions and quantum operations C. Classical programming instructions D. Classical binary data

Correct Answer: B

Question 7

What does the draw(output='latex') function in qiskit returns?

A. PIL.Image B. str C. TextDrawing D. matplotlib.figure.Figure

Correct Answer: A

Question 8

For the given quantum circuit, what is missing barrier instruction statements 1 & 2 below?
qc = QuantumCircuit(3)
qc.h(0)
qc.z(1)
qc.x(2)
# missing_statement_1
qc.cx(0,1)
qc.h(2)
# missing_statement_2
qc.draw(output='mpl')

A. missing_statement_1: qc.barrier(:1)
missing_statement_2: qc.barrier() B. missing_statement_1: qc.barrier(0,1)
missing_statement_2: qc.barrier() C. missing_statement_1: qc.barrier(1,2)
missing_statement_2: qc.barrier_all() D. missing_statement_1: qc.barrier(0,1)
missing_statement_2: qc.barrier_all()

Correct Answer: B

Question 9

Which of the following bloch_multivector plot options given below is the correct one for the given bell quantum circuit?
qc = QuantumCircuit(2)
qc.x(0)
qc.h(0)
qc.h(1)

A.

B.

C.

D.

Correct Answer: A

Question 10

What is the resultant gate when we apply three Hadamard gates (in series) in the single-qubit circuit?

A. Y-gate B. X-gate C. H-gate D. I-gate

Correct Answer: C

Question 11

In the below quantum circuit, which statement should be added in the missing code to get the below desired state?
(select only 2)
qc = QuantumCircuit(3)
qc.h(0)
qc.cx([0,1],[1,2])
backend = BasicAer.get_backend('statevector_simulator')
job = execute(qc, backend, shots=1024)
result = job.result()
## Missing code
desired state: 1/sqrt(2) [1 0 0 0 0 0 0 1]

A.

B.

C.

D.

E.

Correct Answer: A,B

Question 12

What is the function of noise models in quantum simulators?

A. Provide additional qubit capacity for larger simulations B. Minimize errors and produce ideal quantum states C. Introduce errors and simulate real-world quantum hardware behavior D. Enable faster execution of quantum algorithms

Correct Answer: C

Question 13

What is the primary goal of quantum error correction?

A. Maximizing the number of qubits in a quantum system B. Preventing errors in classical computations C. Minimizing errors caused by quantum decoherence D. Enhancing quantum gate operations

Correct Answer: C

Question 14

How is the statevector of a quantum circuit typically visualized using plot_statevector() in Qiskit?

A. Through a 3D visualization of qubit entanglement B. As a line plot representing qubit states C. Using a scatter plot indicating qubit connectivity D. As a bar chart displaying quantum gate operations

Correct Answer: B

IBM Fundamentals of Quantum Computation Using Qiskit v0.2X Developer - C1000-112 Exam Practice Test