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Field name
Content associated with a field
Group of key-value pairs
Ordered list of items
CCNA AI and Network Operations Practice Question
Match each data-structure term to its most accurate meaning.
⚠ Common exam trap
Do not confuse the properties of different data structures. Arrays are defined by indexed access, not by access patterns like LIFO or FIFO, which belong to stacks and queues respectively.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Key: Field name
These pairs correctly match data-structure terms to their definitions. Array uses indices, hash table uses key-value mapping, stack is LIFO, queue is FIFO, linked list uses nodes with references, and tree is hierarchical.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Key: Field name
Why this is correct
In structured data, a key acts as the identifier or label for a specific piece of data within a record. It is analogous to a field name in a table, such as "username" or "ip_address", providing a semantic handle to retrieve and manipulate the corresponding value without needing to know its position.
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Value: Content associated with a field
Why this is correct
The value is the actual data payload that corresponds to a given key, like the string "admin" or an integer "443". It can be of any data type (string, number, boolean, array, etc.) and represents the meaningful information that the key describes.
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Object: Group of key-value pairs
Why this is correct
An object (also called a dictionary or hash map) is a composite data structure that stores unordered collections of key-value pairs. It is enclosed in curly braces in JSON, and each key within the object is unique, allowing fast lookups by name rather than by index.
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Array: Ordered list of items
Why this is correct
An array is an ordered collection of elements, each accessible by a zero-based index. Unlike objects, arrays in JSON are enclosed in square brackets and contain values without keys, which makes them ideal for homogeneous lists such as interface names or routing table entries.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-301 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 200-301 exam.