COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

LAN WAN AND THE INTERNET

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which device is not intelligent as it sends data to all computers on a network which causes a reduction in network speed?
A
Switch
B
Router
C
Hub
D
Network Interface Card (NIC)
Explanation: 

Detailed explanation-1: -A Hub is a simple and cheap networking device that works under the physical layer of the OSI model and connects a bunch of computers in a Local Area Network(LAN). It is considered less intelligent because it does not filter data and does not know where the data is to be sent.

Detailed explanation-2: -Hub is a multiport repeater. It has multiple ports that accept Ethernet connections from different network devices. It is considered as the least intelligent device as it neither filters the data, nor it knows where the data is supposed to be sent.

Detailed explanation-3: -Router. Routers help transmit packets to their destinations by charting a path through the sea of interconnected networking devices using different network topologies. Routers are intelligent devices, and they store information about the networks they’re connected to.

Detailed explanation-4: -Routers are more intelligent than hubs or switches as they store information about the other network devices they are connected to.

Detailed explanation-5: -Essentially, a switch is a more efficient, more intelligent version of a hub. Perhaps the biggest difference between a hub and a switch is the way that it delivers data packets. Rather than blindly passing along data to all devices in a network, an industrial switch records the addresses of the connected devices.

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