1.3 Computer Networks, Connections and Protocols: revision quiz and key terms
Free practice for 1.3 Computer Networks, Connections and Protocols in OCR GCSE Computer Science (J277). It has 2 parts: 1.3.1 Networks and Topology and 1.3.2 Network Protocols and Layers. Try the questions, then check the key terms.
Try 5 free questions
Which protocol is used to send emails from a device to a mail server?
A switch directs data specifically to the correct device within a network.
In a star topology, what happens if the cable connecting one computer to the central switch fails?
A hub directs data specifically to the correct device within a network, unlike a switch.
Which layer of the TCP/IP model is responsible for routing packets between networks?
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Key terms for 1.3 Computer Networks, Connections and Protocols
- Encryption
- Scrambles data so it cannot be understood without the correct decryption key.
- HTTP
- Transfers web pages between a server and a browser.
- LAN
- Connects devices within a small geographical area.
- MAC address
- A unique identifier assigned to a device's network interface controller.
- Router
- Directs data between different networks.
- Star topology
- Connects all devices to a central switch.
- Switch
- Directs data specifically to the correct device within a network.
- Symmetric encryption
- Uses the same key to encrypt and decrypt data.
What 1.3 Computer Networks, Connections and Protocols covers
In RADevo this topic has a full topic test and a focused quiz for each part:
- 1.3.1 Networks and Topology
- 1.3.2 Network Protocols and Layers
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