I have put all the questions which can help in quickly revising all the concepts related to c++ and OOPS.

Please upvote if you find this helpful.

1. What is C++?
2. What is object-oriented programming?
3. What are the advantages of using C++?
4. What is a class?
5. What is an object?
6. What is encapsulation?
7. What is data abstraction?
8. What is inheritance?
9. What is polymorphism?
10. What is a virtual function?
11. What is a constructor?
12. What is a destructor?
13. What is an operator?
14. What is a pointer?
15. What is a reference variable?
16. What is a constant pointer?
17. What is a constant reference?
18. What is a friend function?
19. What is a friend class?
20. What is a static member function?
21. What is a static data member?
22. What is a template?
23. What is a template specialization?
24. What is an abstract class?
25. What is a pure virtual function?
26. What is a virtual destructor?
27. What is the difference between a struct and a class in C++?
28. What is an iterator?
29. What is a namespace?
30. What is the standard template library (STL)?
31. What is the difference between a vector and an array?
32. What is a stack?
33. What is a queue?
34. What is a priority queue?
35. What is a set?
36. What is a map?
37. What is a multimap?
38. What is a multiset?
39. What is a pair?
40. What is a list?
41. What is a forward list?
42. What is a deque?
43. What is a function object?
44. What is an algorithm?
45. What is a functor?
46. What is the difference between a function and a functor?
47. What is a lambda function?
48. What is a smart pointer?
49. What is a unique pointer?
50. What is a shared pointer?
51. What is a weak pointer?
52. What is a type trait?
53. What is a type alias?
54. What is a decltype?
55. What is a const keyword?
56. What is a volatile keyword?
57. What is a mutable keyword?
58. What is a virtual keyword?
59. What is a static keyword?
60. What is a default keyword?
61. What is a delete keyword?
62. What is a private keyword?
63. What is a protected keyword?
64. What is a public keyword?
65. What is a final keyword?
66. What is a override keyword?
67. What is a constexpr keyword?
68. What is a noexcept keyword?
69. What is a auto keyword?
70. What is a range-based for loop?
71. What is a ternary operator?
72. What is a switch statement?
73. What is a try-catch block?
74. What is a throw keyword?
75. What is a catch keyword?
76. What is a throw exception?
77. What is a catch exception?
78. What is a template parameter?
79. What is a function parameter?
80. What is a default parameter?
81. What is a function overloading?
82. What is a function overriding?
83. What is a virtual inheritance?
84. What is a diamond problem?
85. What is a constructor inheritance?
86. What is a multiple inheritance?
87. What is a member initialization list?
88. What is a copy constructor?
89. What is a move constructor?
90. What is a copy assignment operator?
91. What is a move assignment operator?
92. What is a destructor in C++?
93. What is a memory leak?
94. How do you prevent memory leaks in C++?
95. What is dynamic memory allocation in C++?
96. What is the difference between new and malloc?
97. What is the difference between delete and free?
98. What is a binary search tree?
99. What is a hash table?
100. What is a virtual function table?
101. What is an inline function?
102. What is a const member function?
103. What is a using directive?
104. What is a using declaration?
105. What is a namespace alias?
106. What is a global namespace?
107. What is a local namespace?
108. What is a nested namespace?
109. What is an anonymous namespace?
110. What is a scope resolution operator?
111. What is a typeid operator?
112. What is a type cast?
113. What is a reinterpret cast?
114. What is a dynamic cast?
115. What is a static cast?
116. What is a const cast?
117. What is a template function?
118. What is a template class?
119. What is a template partial specialization?
120. What is a template metaprogramming?
121. What is a template parameter pack?
122. What is a variadic template?
123. What is a SFINAE?
124. What is a CRTP?
125. What is a lambda expression?
126. What is a capture list?
127. What is a closure?
128. What is a generic lambda?
129. What is a perfect forwarding?
130. What is a rvalue reference?
131. What is a lvalue reference?
132. What is a const reference?
133. What is a constexpr function?
134. What is a static_assert?
135. What is a tuple?
136. What is a bind function?
137. What is a forward function?
138. What is a back function?
139. What is a emplace function?
140. What is a emplace_back function?
141. What is a emplace_front function?
142. What is a stable_sort function?
143. What is a partition function?
144. What is a copy_if function?
145. What is a remove_if function?
146. What is a unique function?
147. What is a binary function?
148. What is a unary function?
149. What is a functional library?
150. What is a std::unique_ptr?
151. What is a std::shared_ptr?
152. What is a std::weak_ptr?
153. What is a std::make_shared?
154. What is a std::make_unique?
155. What is a std::unique_lock?
156. What is a std::lock_guard?
157. What is a std::condition_variable?
158. What is a std::atomic?
159. What is a std::thread?
160. What is a std::mutex?
161. What is a std::recursive_mutex?
162. What is a std::chrono?
163. What is a std::future?
164. What is a std::async?
165. What is a std::promise?
166. What is a std::function?
167. What is a std::bind?
168. What is a std::ref?
169. What is a std::move?
170. What is a std::copy?
171. What is a std::transform?
172. What is a std::accumulate?
173. What is a std::count?
174. What is a std::find?
175. What is a std::replace?
176. What is a std::fill?
177. What is a std::sort?
178. What is an interface class?
179. What is a const object?
180. What is a volatile object?
181. What is a static object?
182. What is a unique_lock?
183. What is a scoped_lock?
184. What is a recursive_lock?
185. What is a conditional_variable?
186. What is a thread-safe singleton?
187. What is a thread pool?
188. What is a factory pattern?
189. What is a proxy pattern?
190. What is a decorator pattern?
191. What is a adapter pattern?
192. What is a observer pattern?
193. What is a strategy pattern?
194. What is a visitor pattern?
195. What is a builder pattern?
196. What is a composite pattern?
197. What is a iterator pattern?
198. What is a mediator pattern?
199. What is a memento pattern?
200. What is a command pattern?
201. What is a flyweight pattern?
202. What is a facade pattern?
203. What is a state pattern?
204. What is a chain of responsibility pattern?
205. What is a interpreter pattern?
206. What is a abstract factory pattern?
207. What is a singleton pattern?
208. What is a dependency injection?
209. What is a inversion of control?
210. What is a agile methodology?
211. What is a Scrum?
212. What is a Agile Manifesto?
213. What is a user story?
214. What is a sprint?
215. What is a retrospective?
216. What is a continuous integration?
217. What is a continuous deployment?
218. What is a test-driven development?
219. What is a behavior-driven development?
220. What is a refactoring?
221. What is a design pattern?
222. What is a code smell?
223. What is a SOLID principles?
224. What is a KISS principle?
225. What is a YAGNI principle?
226. What is a DRY principle?
227. What is a composition over inheritance?
228. What is a encapsulation?
229. What is a inheritance?
230. What is a polymorphism?
231. What is a abstraction?
232. What is a coupling?
233. What is a cohesion?
234. What is a SRP?
235. What is a OCP?
236. What is a LSP?
237. What is a ISP?
238. What is a DIP?

Prepare well !!!
All the Best.

Please understand that just memorizing the concepts will not help, you should do practice and be ready for follow up questions during interview.