Networking devices

Question 1

What is a Layer 2 switch?

Answer 1

A Layer 2 switch operates at the Data Link layer of the OSI model and is used to switch data packets within a local network (LAN), based on MAC addresses.

Question 2

What is a Layer 3 capable switch?

Answer 2

A Layer 3 switch operates at the Network layer of the OSI model, capable of routing data packets based on IP addresses, combining the features of both switches and routers.

Question 3

What is a router?

Answer 3

A router directs data packets between different networks, making decisions based on IP addresses to find the best path for data transfer.

Question 4

What is a hub?

Answer 4

A hub is a basic networking device that connects multiple Ethernet devices, making them act as a single network segment. It broadcasts data to all connected devices.

Question 5

What is an access point?

Answer 5

An access point allows wireless devices to connect to a wired network using Wi-Fi.

Question 6

What is a bridge?

Answer 6

A bridge connects two or more network segments, filtering traffic between them based on MAC addresses.

Question 7

What is a wireless LAN controller?

Answer 7

A wireless LAN controller manages multiple access points, ensuring they work together to provide seamless wireless coverage.

Question 8

What is a load balancer?

Answer 8

A load balancer distributes network or application traffic across multiple servers to ensure no single server becomes overwhelmed.

Question 9

What is a proxy server?

Answer 9

A proxy server acts as an intermediary for requests from clients seeking resources from other servers, often used for anonymity, security, or content filtering.

Question 10

What is a cable modem?

Answer 10

A cable modem provides internet access by connecting to a cable TV line

Question 11

What is a DSL modem?

Answer 11

A DSL modem provides internet access through telephone lines using Digital Subscriber Line technology.

Question 12

What is a repeater?

Answer 12

A repeater extends the range of a network by amplifying and retransmitting signals.

Question 13

What is a voice gateway?

Answer 13

A voice gateway converts voice signals between different networks, such as converting VoIP calls to traditional phone lines.

Question 14

What is a media converter?

Answer 14

A media converter enables network connections between different types of media, such as fiber to copper.

Question 15

What are IPS/IDS devices?

Answer 15

-IPS (Intrusion Prevention System): Monitors network traffic for suspicious activity and can take action to block it.

-IDS (Intrusion Detection System): Monitors network traffic for suspicious activity and alerts administrators.

Question 16

What is a firewall?

Answer 16

A firewall controls incoming and outgoing network traffic based on predetermined security rules, protecting the network from unauthorized access.

Question 17

What is a VPN headend?

Answer 17

A VPN headend is the device or server that terminates VPN connections, providing secure access to a network.

Question 18

What is a VoIP phone?

Answer 18

A VoIP (Voice over Internet Protocol) phone makes voice calls using a broadband internet connection instead of a traditional phone line.

Question 19

What is a networked printer?

Answer 19

A networked printer connects to a network, allowing multiple devices to print to it.

Question 20

What are physical access control devices?

Answer 20

Physical access control devices manage access to physical locations, often using keycards, biometric scanners, or PIN codes.

Question 21

What are networked cameras?

Answer 21

Networked cameras are surveillance cameras that connect to a network, allowing remote monitoring and recording.

Question 22

What are HVAC sensors?

Answer 22

HVAC (Heating, Ventilation, and Air Conditioning) sensors monitor and control environmental conditions in buildings.

Question 23

What is the Internet of Things (IoT)?

Answer 23

IoT refers to the network of physical devices connected to the internet, enabling them to collect and share data.

Question 24

What are examples of IoT devices?

Answer 24

Refrigerator: A smart fridge can track inventory, suggest recipes, and notify you when items are low.

Smart Speakers: Voice-activated assistants that can control other smart devices, play music, and provide information.

Smart Thermostats: Automatically adjust temperature settings for energy efficiency and comfort.

Smart Doorbells: Allow you to see and talk to visitors remotely.

Industrial Control Systems/SCADA: Systems used to control and monitor industrial processes.