Network Basics and Protocols Quiz

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Questions and Answers

What does RJ-45 stand for, and what is it used for?

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

Why are network protocols important?

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

What is the difference between bits and bytes?

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

What is the IEEE 802.3 standard?

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

What are the types of Ethernet UTP cable standards, and how do they differ?

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

What is a straight-through cable used for?

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

Explain the difference between single-mode and multimode fiber-optic cables.

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. Signup and view all the answers

List two advantages of fiber-optic cabling over UTP cabling.

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

RJ-45 stands for ______ and is commonly used for Ethernet connections.

Registered Jack 45 Signup and view all the answers

The smallest unit of data is a ______, represented as 0 or 1.

bit Signup and view all the answers

Ethernet is defined by the ______ standard.

IEEE 802.3 Signup and view all the answers

Unshielded Twisted Pair (UTP) is used to protect against ______.

electromagnetic interference (EMI) Signup and view all the answers

Single-mode fiber uses a ______-based transmitter and can cover longer distances than multimode fiber.

laser Signup and view all the answers

A ______ cable is used to connect different devices (e.g., switch to computer), while a crossover cable is used to connect similar devices (e.g., switch to switch)

straight-through Signup and view all the answers

Fiber-optic cables have a longer ______ than UTP cables and are not vulnerable to EMI.

maximum distance Signup and view all the answers

The core of a fiber-optic cable is made of ______ and is surrounded by cladding, which reflects light.

fiberglass Signup and view all the answers

Study Notes

Important Short-Answer Questions

RJ-45 stands for Registered Jack 45, and is used for Ethernet connections
Network protocols are important because they define how devices communicate over a network
Bits are the smallest data unit (0 or 1), a byte is 8 bits
IEEE 802.3 is the standard for Ethernet in local area networks, established in 1983
Ethernet UTP cable types include 10BASE-T (2 pairs), 100BASE-T (4 pairs), and 1000BASE-T (all 4 pairs), differing in speed
Straight-through cables connect dissimilar devices, such as a switch and a computer
Single-mode fiber has a narrow core and is suitable for long distances, while multimode fiber has a wider core and is used for shorter distances.
Fiber-optic cables are less susceptible to electromagnetic interference (EMI) and have a longer maximum distance than UTP cables

Fill-in-the-Blank Questions

RJ-45, Registered Jack 45, Ethernet
Bit, 0 or 1
IEEE 802.3
Electromagnetic interference (EMI)
Single-mode fiber overcomes longer distances than multimode
Straight-through connects different devices, crossover connects similar
Fiber-optic cables have longer maximum distance and resist EMI.
Fiber-optic core is fiberglass, surrounded by reflecting cladding.

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Description

Test your knowledge on network fundamentals, including RJ-45 connectors, protocols, and cable types. This quiz covers essential concepts such as data units, fiber-optic technology, and electromagnetic interference, helping you understand the principles of networking better.