Network Basics and Protocols Quiz

RJ-45 stands for Registered Jack 45, and it is commonly used for Ethernet connections.

Network protocols ensure effective communication between devices by defining how data is transmitted over a network.

Bits are the smallest unit of data, represented as 0 or 1, while a byte is a group of 8 bits.

<p>IEEE 802.3 is the standard defining Ethernet for local area networks, established in 1983.</p> Signup and view all the answers

<p>10BASE-T uses 2 pairs, 100BASE-T uses 4 pairs, and 1000BASE-T uses all 4 pairs for higher speeds.</p> Signup and view all the answers

<p>It is used to connect different devices, such as a switch to a computer.</p> Signup and view all the answers

<p>Single-mode fiber has a narrow core, uses a single light mode, is suitable for longer distances, and is more expensive. Multimode fiber has a wider core, allows multiple light modes, is for shorter distances, and is less expensive.</p> Signup and view all the answers

<p>Fiber-optic cabling has a longer maximum distance and is not vulnerable to EMI.</p> Signup and view all the answers

<p>Registered Jack 45</p> Signup and view all the answers

<p>bit</p> Signup and view all the answers

<p>IEEE 802.3</p> Signup and view all the answers

<p>electromagnetic interference (EMI)</p> Signup and view all the answers

<p>laser</p> Signup and view all the answers

<p>straight-through</p> Signup and view all the answers

<p>maximum distance</p> Signup and view all the answers

<p>fiberglass</p> Signup and view all the answers

RJ-45 stands for Registered Jack 45. It's a type of connector commonly used for Ethernet communication, ensuring data can travel quickly between computers and other network devices.

Network protocols define the rules and standards for communication between devices on a network, ensuring that data is transmitted and received correctly.

A bit is the smallest unit of data, representing a single 0 or 1. A byte is a collection of 8 bits, forming a group for storing data.

IEEE 802.3 is a widely recognized standard for Ethernet networks. It defines the technical specifications and ensures compatibility between devices.

UTP cable stands for Unshielded Twisted Pair. It's a type of Ethernet cable used to transmit network data, the twist helps reduce electromagnetic interference (EMI).

Ethernet cable standards define the speed and number of wires used. 10BASE-T uses 2 pairs for 10 Mbps, 100BASE-T uses 4 pairs for 100 Mbps, and 1000BASE-T uses all pairs for 1000 Mbps.

A straight-through cable connects different types of devices, like a switch to a computer, allowing data to flow smoothly.

Fiber-optic cables transmit data using light pulses through thin strands of glass. Single-mode fiber has a smaller core, using a single light beam, for longer distances and higher speeds, while multimode fiber has a larger core, using multiple beams, for shorter distances.

Fiber-optic cables have several advantages over UTP cables. They can transmit data over longer distances, are less susceptible to electromagnetic interference, and offer greater bandwidth, making them ideal for high-speed applications.

A crossover cable connects similar devices, like two switches or two computers, ensuring the flow of data between them.

The core of a fiber-optic cable is made of glass or plastic fibers, surrounded by a cladding layer that reflects light back into the core, guiding the light pulses.

Ethernet, a common network protocol, enables communication between devices on a local area network (LAN). It's based on the IEEE 802.3 standard, defining the rules and specifications for data transmission.

A network interface card (NIC) is a hardware component that connects your computer to the network. It translates data from your computer into signals that can travel over the network cable.

A switch is a network device that connects multiple computers and other devices, allowing them to communicate with each other on a network.

A router is a network device that connects multiple networks together, allowing data to be transmitted between them, acting as a gateway for data packets.

A hub is a simple network device that connects multiple computers together, broadcasting data to all connected devices. It's a less efficient way to connect than a switch.

A modem (Modulator-Demodulator) is a device that converts digital data from your computer into analog signals for transmission over telephone lines, and vice versa.

A firewall is a security system that acts as a barrier between your network and the outside world, protecting your network from unauthorized access and potential threats.

A network topology describes the arrangement of devices in a network. Common topologies include bus, star, ring, and mesh.

A star topology connects all devices to a central hub or switch, providing centralized management and easy troubleshooting.

A bus topology connects all devices to a single cable, with data packets sent over the cable to the intended device.

A ring topology forms a closed loop where data packets travel around the ring in one direction, each device relaying the data to the next.

A mesh topology creates multiple connections between devices, providing several paths for data transmission, increasing network resilience.

Network security measures are essential for protecting data and resources on a network. These measures include firewalls, antivirus software, and intrusion detection systems.

Network administration involves managing and maintaining the network infrastructure, ensuring its smooth operation and performance.

Data communication involves transferring data from one location to another using various methods like wired and wireless communication.

Network protocols are sets of rules and standards that define how devices communicate on a network, ensuring correct data transmission.