What do apology diagrams help us visualize in a network?
Devices in the network, including desktops, servers, switches, and routers
These diagrams may also contain detailed information about devices such as MAC addresses, IP addresses, and DNS server addresses.
How does a device perceive the network?
As being in its own bubble, knowing only its own addressing information
This means a device does not inherently understand the entire network structure.
What governs how devices communicate in a network?
Protocols
Protocols are rules that dictate the communication processes between devices.
What are the smaller data units called that network communications are broken into?
Packets
Packets are the fundamental units of data transmitted over a network.
Name two protocols that physically connect a device to the network.
- Ethernet
- Wireless protocols
These protocols enable the physical connection of devices to the network.
What does the DHCP protocol provide to a device?
IP addressing information, including the device’s network and default Gateway address
DHCP stands for Dynamic Host Configuration Protocol.
What role does the DNS server play in network communication?
Resolves domain names to IP addresses
For example, it helps a device find the IP address of a web server when a user requests a webpage.
What is the purpose of the TCP protocol?
Guarantees reliability by ensuring all sent information is received
TCP stands for Transmission Control Protocol.
True or false: A device knows if the information it sent was received without any additional protocols.
FALSE
Protocols like TCP are necessary to confirm receipt of information.
What happens if any of the IP packets do not reach their destination?
TCP resends them
This ensures that all parts of the information are delivered correctly.
What is an internet standard?
A set of rules that determines how something must be done
Internet standards ensure that all devices connecting to the network implement the same set of rules or protocols.
How do networking and internet standards benefit different devices?
They allow different types of devices to send information to each other over the internet
For example, email formatting, forwarding, and receiving are done according to a standard.
True or false: An email can be sent from a personal computer and received on a mobile phone only if both devices use the same standards.
TRUE
This ensures compatibility in how emails are formatted and read across different devices.
What is the role of Request for Comments (RFC) documents in the development of internet standards?
They record each stage of the development and approval process
RFCs track the evolution of the standard.
Which organization publishes and manages RFCs for internet standards?
Internet Engineering Task Force (IETF)
The IETF is responsible for the development and maintenance of internet standards.
Name two other standards organizations that support the internet.
- IEEE
- ICANN
These organizations contribute to the development and maintenance of internet standards.
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Module 1: Network Types35
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Module 1: Data Transmission41
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Module 1: Bandwidth & Throughput19
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Module 2: Client & Servers45
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Module 2: Network Components37
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Module 2: ISP Connectivity Options55
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Module 3: Wireless Networks And Mobile Device Connectivity102
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Module 4: Home Network Basics & Network Technologies In The Home45
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Module 4: Wireless Standards & Setting Up A Home Router72
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Module 5: Communication Protocols23
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Module 5: Communication Standards16
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Module 5: Network Communication Models45
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Module 6: Network Media Types28
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Module 7: Encapsulation And The Ethernet Frame19
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Module 7: The Access Layer15
