Lesson 1 Flashcards
(21 cards)
What is the primary goal of networking?
To connect different systems together and ensure messages get delivered
What does a switch do in a network?
Connects all devices in a Local Area Network (LAN) and directs data to the correct device
What is the role of a router?
Connects different neighborhoods (networks) together and directs data between them
True or False: A router is like a neighborhood mail sorting center.
False
What is the function of a firewall?
Checks incoming and outgoing data to block harmful content
What does a Wireless Access Point (WAP) do?
Delivers data wirelessly between devices
Fill in the blank: A switch connects multiple devices in a _______.
Local Area Network (LAN)
What is a MAC address?
A unique identifier for each device on a network
What does the CAM table in a switch do?
Maps MAC addresses to specific ports
How does a switch improve network performance compared to a hub?
Sends data only to the intended recipient instead of all devices
What is a frame in networking?
A Layer 2 data packet used by switches to send messages
At which layer of the OSI model do switches operate?
Layer 2 (Data Link)
What command is used to view the MAC address table on a switch?
show mac-address-table
What happens when a hub receives a message from a device?
Sends the message to all devices on the network
What is the analogy used to explain how a switch operates?
A smart mail sorting center
What happens when Bob sends a letter to Alice in the network analogy?
The switch delivers the letter directly to Alice’s house
How does data travel from Bob to Mark in an online game?
Through Bob’s switch, router, and ISP to the game server
What does the firewall do if it finds a suspicious package?
Blocks it from reaching the intended recipient
What is the advantage of using a switch over a hub?
Improves speed and security by directing data only to the intended recipient
Fill in the blank: A switch learns MAC addresses and stores them in its _______.
CAM table
True or False: A Wireless Access Point requires physical cables to send data.
False
