CCNA Basic Test Quiz

Explanation
A router is a network device that is used to connect multiple computer networks together and route data packets between them. It acts as a central hub for communication between devices in a network, allowing them to share information and access the internet. Routers use routing tables to determine the best path for data transmission, ensuring efficient and secure communication. They play a crucial role in directing network traffic and are essential for the functioning of modern computer networks.

Explanation
The OSI Layer is a concept used in computer networking to divide a communications system into multiple layers, each with specific functions and responsibilities. This division helps in organizing and managing complex network protocols and technologies effectively. By breaking down the system into smaller parts or layers, it becomes easier to understand, troubleshoot, and develop network solutions.

Explanation
The given answer, 1 and 3, is correct because odd numbers are numbers that cannot be divided evenly by 2. In this case, both 1 and 3 are not divisible by 2, making them odd numbers. The number 2, on the other hand, is an even number as it can be divided evenly by 2. Therefore, the odd numbers in the given list are 1 and 3.

Explanation
London is indeed located in the UK. London is the capital city of England and the United Kingdom. It is situated in the southeastern part of England and is a major global city known for its rich history, cultural diversity, and economic significance. Therefore, the statement "London is located in the UK" is true.