4.9: Fundamentals of Communication and Networking: revision quiz and key terms

Free practice for 4.9: Fundamentals of Communication and Networking in AQA A Level Computer Science (7517). It has 18 parts, listed below. Try the questions, then check the key terms.

Key terms for 4.9: Fundamentals of Communication and Networking

Baud rate

The number of signal changes per second on a communication medium.

Digital signature

Verifies that a message has not been altered and confirms the sender's identity.

DNS

A system that translates domain names into IP addresses.

Logical topology

Describes how data actually flows and behaves, regardless of physical layout.

MAC address white list

Restricts network access to only devices with pre-approved MAC addresses.

NAT

Translates private IP addresses on a local network into a public IP address for use on the internet.

Physical star topology

Connects every device on a network directly to a central switch.

Serial transmission

Sending data one bit at a time along a single wire.

What 4.9: Fundamentals of Communication and Networking covers

In RADevo this topic has a full topic test and a focused quiz for each part:

• 4.9.1.1 Communication Methods
• 4.9.1.2 Communication Basics
• 4.9.2.1 Network Topology
• 4.9.2.2 Types of Networking Between Hosts
• 4.9.2.3 Wireless Networking
• 4.9.3.1 The Internet and How It Works
• 4.9.3.2 Internet Security
• 4.9.4.1 TCP/IP
• 4.9.4.2 Standard Application Layer Protocols
• 4.9.4.3 IP Address Structure
• 4.9.4.4 Subnet Masking
• 4.9.4.5 IP Standards
• 4.9.4.6 Public and Private IP Addresses
• 4.9.4.7 Dynamic Host Configuration Protocol (DHCP)
• 4.9.4.8 Network Address Translation (NAT)
• 4.9.4.9 Port Forwarding
• 4.9.4.10 Client Server Model
• 4.9.4.11 Thin- versus Thick-Client Computing