#learning-path
Here is a recommended path for preparing to take the exam:

1. Study the Learn Quantum Computation using Qiskit textbook up to, and including, the Multiple Qubits and Entanglement section https://qiskit.org/textbook
2. Then, it will be helpful to go through some of the tutorials that cover the following areas of the IBM Quantum Lab:
   1. Quantum circuits: https://quantum-computing.ibm.com/lab/files/qiskit-tutorials/tutorials/circuits
   2. Quantum simulators: https://quantum-computing.ibm.com/lab/files/qiskit-tutorials/tutorials/simulators
3. Then, dive a bit deeper into quantum circuits, which are a combination of quantum gates, measurements and resets. Initially, make sure you cover the below topics. To understand the circuits, please go through these websites,

• https://qiskit.org/textbook/ch-algorithms/defining-quantum-circuits.html

• https://qiskit.org/textbook/ch-states/representing-qubit-states.html

• https://qiskit.org/documentation/stubs/qiskit.circuit.Gate.html

• https://qiskit.org/documentation/tutorials/circuits_advanced/03_advanced_circuit_visualization.html

  1. Using various single-qubit gates : https://qiskit.org/textbook/ch-states/single-qubit-gates.html
  2. Using various multi-qubit gates : https://qiskit.org/textbook/ch-gates/multiple-qubits-entangled-states.html
  3. Using barrier operation : https://qiskit.org/documentation/stubs/qiskit.circuit.library.Barrier.html
  4. Returning the circuit depth : https://arnaldogunzi.medium.com/how-to-calculate-the-depth-of-a-quantum-circuit-in-qiskit-868505abc
  5. Extending quantum circuits : https://qiskit.org/documentation/stubs/qiskit.extensions.Initialize.html
  6. Operations around the qiskit version : https://qiskit.org/documentation/install.html
  7. Operators : https://qiskit.org/documentation/tutorials/circuits_advanced/02_operators_overview.html
  8. Fidelity: https://qiskit.org/documentation/stubs/qiskit.quantum_info.state_fidelity.html

• A topic to study next would be quantum registers. Visiting these resources will shed some additional light in this area:

• https://qiskit.org/documentation/getting_started.html

  1. Constructing Quantum Circuits : https://qiskit.org/textbook/ch-algorithms/defining-quantum-circuits.html
  2. Constructing multi-qubit quantum registers : https://qiskit.org/textbook/ch-gates/multiple-qubits-entangled-states.html
  3. Measuring quantum circuits into classical registers: https://qiskit.org/documentation/stubs/qiskit.circuit.Measure.html
  4. Classical and quantum registers: https://qiskit.org/documentation/stubs/qiskit.circuit.QuantumRegister.html
  5. Executing a quantum circuit: https://qiskit.org/documentation/apidoc/execute.html

• The next topic to consider is simulators. Simulators are used to mimic the actual quantum device. Below are the links to follow through these topics,

• https://qiskit.org/documentation/tutorials/simulators/1_aer_provider.html

• https://qiskit.org/documentation/apidoc/providers_basicaer.html

  1. Returning the histogram data of an experiment
  2. Returning the statevector of an experiment
  3. Returning the unitary of an experiment
  4. Available simulators
  5. Accessing a statevector_simulator backend
  6. Accessing a qasm_simulator backend
  7. Accessing a unitary_simulator backend

• Open QASM is Open Quantum Assembly Language is an intermediate language for quantum instructions. Below are some resources to understand the Open QASM and how to use it in Qiskit.

• https://qiskit.org/documentation/stubs/qiskit.qasm.Qasm.html

• https://medium.com/qiskit/a-new-openqasm-for-a-new-era-of-dynamic-circuits-87f031cac

• https://github.com/Qiskit/openqasm

  1. Returning the OpenQASM string for a circuit
  2. Reading a QASM file

• Qiskit Backend refers to the functions used in IBM Quantum Experience device. To understand how the Qiskit Backend works, go through the resources below,

• https://quantum-computing.ibm.com/docs/manage/account/ibmq

• https://qiskit.org/documentation/stubs/qiskit.providers.ibmq.IBMQBackend.html

• https://medium.com/qiskit/qiskit-backends-what-they-are-and-how-to-work-with-them-fb66b3bd

  1. Monitor the status of a job instance
  2. Qiskit Backend Overview

• Visualization deals with the plotting various data in Qiskit. Below are some resources to understand these concepts,

• https://qiskit.org/documentation/tutorials/circuits/2_plotting_data_in_qiskit.html

• https://qiskit.org/documentation/tutorials/circuits_advanced/03_advanced_circuit_visualization.html

  1. Drawing a circuit Plotting a histogram of data
  2. Plotting a Bloch multivector
  3. Plotting a Bloch vector
  4. Plotting a QSphere
  5. Plotting a density matrix
  6. Plotting a gate map with error rates