Tag: architecture

Questions Related to architecture

Which java clas represents SQL statements that are complied before they are executed?
technology architecture

  1. Statement

  2. PreparedStatement

  3. ResultSet.

  4. Callable Statement

Show answer
Correct Option: B

A Vector is created, and three strings called Tinker, Evers and Chance are added to it. The method removeElement(“Evers”) is called. Which of the following Vector methods retrieve the string “Chance” ?
technology architecture

  1. get(1);

  2. get(2);

  3. get(“Chance”);

  4. None of the above.

Show answer
Correct Option: A
Explanation:

To solve this question, the user needs to know about Vector methods and how they work.

When a string is added to a Vector, it is assigned an index based on the order in which it was added. In this case, "Tinker" would be assigned an index of 0, "Evers" would be assigned an index of 1, and "Chance" would be assigned an index of 2.

The method removeElement("Evers") will remove the string "Evers" from the Vector and shift the index of "Chance" down by one, so it will now have an index of 1.

Now let's go through each option and explain why it is right or wrong:

A. get(1): This option will retrieve the string at index 1 of the Vector, which is now "Chance". This option is correct.

B. get(2): This option will retrieve the string at index 2 of the Vector, which is now out of bounds since the vector size is now 2. This option is incorrect.

C. get("Chance"): This option is not a valid method for retrieving elements from a Vector. This option is incorrect.

D. None of the above: This option is incorrect because option A is correct.

Therefore, the answer is: A. get(1);

How do you declare and initialize a String array with two elements in a single line of code?
technology architecture

  1. String [] strArr = [“element 1”, “element 2];

  2. String [] strArr = {“element 1”, “element 2”};

  3. String [] strArr = (“element 1”, “element2”);

  4. String [] strArr = new String [“element 1” , “element 2”];

Show answer
Correct Option: B

What is UML?
technology architecture

  1. Universal Model Locator.

  2. Unified Modeling Locator.

  3. Unified Modeling Language.

  4. Unique Modeling Language.

Show answer
Correct Option: C

Select the Diagram not part of the UML Implementation?
technology architecture

  1. Class Diagram.

  2. Sequence Diagram.

  3. Bar Chart.

  4. Activity Diagram.

Show answer
Correct Option: C

When do we need to draw Activity Diagram when developing Use Cases?
technology architecture

  1. Describe sequence of activities for both conditional and parallel behavior.

  2. Describe behavior of an object across several use cases

  3. Used to show behavior of several objects within a use case

  4. Describe relationships between classes and constraints.

Show answer
Correct Option: A

When to use Aggregations?
technology architecture

  1. To depict elements which are made up of smaller components.

  2. To define relationship between two elements.

  3. To define variations on existing UML model.

  4. Used when we need to map an event with action using a guard.

Show answer
Correct Option: A

How to define stereotypes in UML?
technology architecture
    • checkSum

  2. – checkSum

  3. <>

  4. Customer1

Show answer
Correct Option: C

How to define an attribute as Protected inside the Class Diagram (UML)?
technology architecture
    • variable1 : String

  2. – variable 1 : String

  3. variable1 : String

  4. None of the above.

Show answer
Correct Option: C

If we need to show Concurrent Process in Activity Diagram which node need to be used?
technology architecture

  1. Initial Node

  2. Final Node

  3. Decision and Merge Nodes

  4. Fork and Join Nodes.

Show answer
Correct Option: D