9 Questions
What is the main function of a network switch?
Opening and closing network connections
How does a switch differ from a hub?
A hub shares bandwidth among all its ports, while a switch allocates bandwidth for each port
Which networking device acts as a portal for devices to connect to a local area network wirelessly?
Wireless Access Point (AP)
What is the primary advantage of using an Access Point (AP) in a network?
Allowing data transmission while moving
How does a switch handle data traffic compared to a router?
Switch filters and forwards data, while a router directs data to an IP address or network
What distinguishes a wireless Access Point (WAP) from other network devices?
Combines a transmitter and receiver to form a WLAN
Which statement best describes the function of an access point in networking?
Allows connection to a local area network wirelessly
What makes an access point (AP) particularly useful in extending networks wirelessly?
Extends coverage without the need for additional equipment
Which characteristic distinguishes a router from a switch in terms of data forwarding?
Switch sends data directly to specific destination ports, while router forwards data based on IP addresses
Study Notes
Network Devices
- Hub: A network hub is a simple network device that connects multiple devices together, but it cannot filter information, reduce network traffic, or broadcast data to all ports.
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Types of Hubs:
- Active Hub: Has its own power supply, cleans and boosts the signal, and extends the distance between nodes.
- Passive Hub: Collects wiring from the power supply and different nodes of an active hub, but does not improve or clean the signal.
Repeater
- A repeater reproduces the signal on a similar network before it gets weak or damaged, but does not strengthen the signal.
- It is a two-port device: one port for incoming signals and one for outgoing signals.
- Effective in office buildings, schools, and factories where a single wireless router cannot reach all areas.
Bridge
- A bridge unites two or more network segments, storing and transmitting frames among the various segments.
- It aggregates partitioned network segments and controls traffic that moves between them.
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Types of Bridges:
- Transparent Bridge: Interconnects LANs that use the same protocol suite.
- Translation Bridge: Joins LANs that use different protocols.
- A bridge builds a lookup table of MAC addresses and port locations to determine whether to forward a frame or discard it.
Router
- A router receives, analyzes, and forwards incoming packets to another network based on the target IP address.
- It uses a routing table to decide the best available route for the packet to reach its destination quickly and accurately.
- The routing table can be of two types.
Switch
- A switch is a physical circuitry part that controls the flow of signals in networking.
- It enables opening or closing a connection to allow or stop the flow of signals.
- A switch is more advanced than a hub, but less advanced than a router.
- It allocates bandwidth for each port, unlike a hub that shares bandwidth among all its ports.
Access Point
- An access point (AP) is a wireless network device that acts as a portal for devices to connect to a local area network.
- It can extend an existing network's wireless coverage and increase the number of users who can connect.
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Advantages:
- Easier and faster to install.
- Allows data transmission even when the user is moving.
- Simple to extend to places where wires and cables are inaccessible.
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Disadvantages:
- Limited range of network devices, causing issues for many users.
- Other disadvantages (not specified).
Learn about the differences between active and passive network hubs, their advantages, disadvantages, and how they function in a network. Active hubs have their own power supply and play a key role in signal transmission, while passive hubs lack these capabilities.
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