29. OCR GCSE (J277) 1.3 Modes of connection

Henry, Amelia, and Alexander are setting up a home network. They have decided to use Ethernet. What would they be using Ethernet for in this scenario?

• Setting up a wireless communication network

• Setting up a wired communication network

• Transferring data over mobile networks

• Establishing a Bluetooth connection

Isabella, Evie, and Aarav are working on a school project where they need to send data over an Ethernet network. They are discussing the purpose of the preamble in an Ethernet frame. What do you think is the purpose of the preamble in an Ethernet frame in this context?

• To encrypt the data

• To signify the start of important data

• To synchronize transmission and receiver clocks

• To check for signal strength

Alexander, Kiara, and Emily are setting up a local area network for their school's computer lab. They decided to use the same network topology that Ethernet originally used. Which topology did they choose?

• Bus network

• Ring network

• Mesh network

• Star network

Ella, Rohan, and Harry are planning to set up a network for their new startup. They are considering both wired and Wi-Fi networks. What would be the main advantage if they choose a Wi-Fi network over a wired one?

• Faster speeds

• More secure

• Easier to set up

• Allows users to move freely

Evie, Eesha, and Emily are setting up a network for their school project. They are considering a wireless network but are aware it might have some disadvantages compared to a wired network. What could be a potential disadvantage?

• It would be easier for them to set up

• It would be more secure

• It can handle a larger number of users

• It might have slower speeds

Alexander, Kiara, and Mia are planning a camping trip and they want to stay connected with each other without draining their phone batteries quickly. Which wireless technology should they use for this purpose?

• Wi-Fi, as it provides faster speeds

• Bluetooth, as it has higher power consumption

• Bluetooth, as it has lower power consumption

• Wi-Fi, as it has a longer range

During a school project, Daniel, Aarav, and Arjun are trying to send data over an Ethernet network. They notice a field called CRC in the Ethernet frame. What is the purpose of this CRC?

• It is used to signify the start of important data

• It is used to synchronize transmission and receiver clocks

• It is used to check for signal strength

• It is used to perform error-checking on the frame

Aarav, Alexander, and Oliver are planning to set up a wireless connection for their devices in the park. They are considering Bluetooth and Wi-Fi. If they choose Bluetooth, how far can they be from each other while still maintaining the connection?

• 10 meters

• 100 meters

• 1 kilometer

• Unlimited range

Aarav, Anaya, and Grace are setting up a Wi-Fi network for their school project. They need to know the frequency range that Wi-Fi networks typically use. Can you help them?

• 2.4GHz - 2.5GHz

• 3.5GHz - 4.0GHz

• 5.0GHz - 5.5GHz

• 6.0GHz - 6.5GHz

Samuel and Evie are setting up their wireless networks at home. They live next door to each other and are using the same channel for their networks. What could be the implication of this setup?

• Faster data transfer

• Possible interference

• Signal strength increases

• No interference