What device uses hardware addresses to filter a network?
Bridge or switch
CCNA Cisco Certified Network Associate: Study Guide, Seventh Edition by
| Description | Device or OSI Layer |
|---|---|
| This device uses hardware addresses to filter a network. | Bridge or switch |
| Ethernet is defined at these layers. | Data Link and Physical |
| This layer supports flow control, sequencing, and acknowledgments. | Transport |
What device uses hardware addresses to move data?
Routers: A router is a switch like device that routes/forwards data packets based on their IP addresses.
Is any device that sends and receives information on the network?
A router is a machine that forwards packets from one network to another.
What OSI layer is logical addressing?
the Network Layer
Layer 3 is responsible for routing network messages through the network. An important function of the Network Layer is logical addressing. Each network device has a physical address called the MAC address (See Layer 2).
Which device creates multiple broadcast domains?
Routers separate a LAN into multiple broadcast domains (every port on a router is in a different broadcast domain). Switches (by default) flood Ethernet broadcast frames out all ports, just like bridges and hubs. All ports on these devices are in the same broadcast domain.
Which device creates separate collision domains and?
Which device creates separate collision domains and a single broadcast domain? Switches create separate collision domains but a single broadcast domain. Remember that routers provide a separate broadcast domain for each interface.
Which address is used in network layer?
Logical addresses are created and used by Network layer protocols such as IP or IPX. The Network layer protocol translates logical addresses to MAC addresses. For example, if you use IP as the Network layer protocol, devices on the network are assigned IP addresses such as 207.120.
Which devices work in network layer?
Network+/Standards/OSI Model/OSI Components
| OSI Layer | Purpose | Device |
|---|---|---|
| Transport | Reliability | Firewall |
| Network | Addressing, Routing | Router |
| Data Link | Logical Link Control, Media Access Control | Switch, Bridge, Access Point |
| Physical | Transmission | Hub, NIC, Cable, Wireless |
Are networking hardware used to connect one network device to other network devices?
Computers need networking hardware in order to connect to each other. Routers , hubs , switches and bridges are all pieces of networking equipment that can perform slightly different tasks.
What is communication hardware?
A communication device is a hardware device capable of transmitting an analog or digital signal over the telephone, other communication wire, or wirelessly. Other examples of communication devices include a NIC (network interface card), Wi-Fi devices, and access points.
Which addresses are added during encapsulation at the network layer?
At which layer of the OSI model would a logical address be added during encapsulation? Explanation:Logical addresses, also known as IP addresses, are added at the network layer.
What is logical addressing in computer networks?
In computing, a logical address is the address at which an item (memory cell, storage element, network host) appears to reside from the perspective of an executing application program. A logical address may be different from the physical address due to the operation of an address translator or mapping function.
What are random hardware addresses and how do they work?
Why use random hardware addresses? When you’re not connected to Wi-Fi, your PC sends a signal to look for Wi-Fi networks in the area to help you get connected. The signal contains the unique physical hardware (MAC) address for your device.
How does a hubbed network filter data?
Hubs typically do not filter data, but instead retransmit incoming data packets or frames to all parts. Almost all networks today use a central hub or switch to which the computers on the network connect. In a hubbed network, each computer is connected to the hub through a single line.
What is the MAC address of a device?
A Media Access Control (MAC) address is the unique hardware address of an Ethernet network interface card (NIC), typically “burned in” at the factory. MAC addresses may be changed in software.
What is the unique identifier of a network?
In the TCP/IP protocol, this unique identifier is the IP Address. The two kinds of IP Addresses are IPv4 and IPv6. IPv4 uses 32 binary bits to create a single unique address on the network. An IPv4 address is expressed by four numbers separated by dots.