J277 2.1 Knowledge Recall 1

Choose the correct key term: "Any information or data that is fed into a system."

• Problem inputs

• Problem processes

• Problem outputs

• Structure diagram

Choose the correct key term: "Anything that happens to data while a system is running – e.g., calculations.."

• Problem inputs

• Problem processes

• Problem outputs

• Structure diagram

Choose the correct key term: "Any information or data that leaves a system"

• Problem inputs

• Problem processes

• Problem outputs

• Structure diagram

Choose the correct key term: "Looks like an upside-down tree with one node at the top (root) and many below. Used when designing solutions to problems to help break a large problem down into a number of smaller parts.”

• Problem inputs

• Problem processes

• Problem outputs

• Structure diagram

Choose the correct key term: "A language-independent description of the steps of an algorithm. Intended for humans to express and design algorithms before coding.”

• Pseudocode

• Flowchart

• Trace Table

• Structure Diagram

Choose the correct key term: "A method of designing algorithms using symbols before coding".

• Pseudocode

• Flowchart

• Trace Table

• Structure Diagram

Choose the correct key term: "A technique used to test algorithms and ensure that no logical errors occur while the algorithm is being processed. Usually has a column for each variable. Each row shows how the various values change as the algorithm runs".

• Pseudocode

• Flowchart

• Trace Table

• Structure Diagram

Choose the correct key term: "An algorithm that attempts to find a specific value in a data set".

• Searching Algorithm

• Binary Search

• Linear Search

• Pseudocode

Choose the correct key term: "Efficient search method that only works if a file’s records are arranged in sequence. Involves accessing the middle record in the file, determining whether the target record has been found and, if not, whether the target record is before or after the mid-point. The process is repeated on the part of the file where the target record is expected to be until it is found.".

• Searching Algorithm

• Binary Search

• Linear Search

• Pseudocode

Choose the correct key term: "Examining each entry in a file in turn until the target record is found or the end of the file is reached. Unless the file is arranged in a useful order, a serial search must be used."

• Searching Algorithm

• Binary Search

• Linear Search

• Pseudocode