Module 4 - Build a Simple Network

Which type of data cable is used by television companies to carry data and video signals? A - Coaxial B - Unshielded Twisted Pair C - Fiber-Optic D - Shielded Twisted Pair

A - Coaxial

Directly connecting like-devices, such as two computers, requires what type of UTP Ethernet cable? A - Crossover B - Straight-Through C - STP D - CAT 3

A - Crossover

A type of interference that occurs when cables are bundled together for long lengths is known as: A - Crosstalk B - Cross-Interference C - Bundled-Interference D - Crosscheck

A - Crosstalk

Which term describes the interference when electrical impulses from one cable cross over to an adjacent cable? A - Crosstalk B - RFI C - Crossover D - Collision

A - Crosstalk

In a Fiber-Optic cable what is the purpose of the Cladding?

Made from slightly different chemicals than those used to create the core. It tends to act like a mirror by reflecting light back into the core of the fiber. This keeps light in the core as it travels down the fiber.

Copper cables are sensitive to EMI (Electromagnetic Interference) which can reduced data throughput and generate additional electrical noise on the line. What are some common items that can generate this type of interference?

Microwave Ovens, Fridges, Fluorescent Lights, and anything that produces a strong electrical current/generates a strong magnetic field.

A network specialist has been hired to install a network in a company that assembles airplane engines. Because of the nature of the business, the area is highly affected by electromagnetic interference. Which type of network media should be recommended so that the data communication will not be affected by EMI? A - Fiber Optic B - UTP C - STP D - Coaxial

A - Fiber Optic

A group of newly hired entry-level network engineers are talking about the network cabling they are going to have to install as a team. What is a characteristic of Ethernet straight-through UTP cable? A - It is susceptible to interferences from EMI and RFI B - It can be used to connect two network hosts C - It is a Cisco Proprietary D - It can only use the T568A standard at both ends of the cable

A - It is susceptible to interferences from EMI and RFI

Two devices that use DIFFERENT wires for transmit and receive are known as UNLIKE DEVICES. A "Cross over Cable" is used to send data from:

A - Like Devices

Which organization defines the two different patterns, or wiring schemes, called T568A and T568B? A - TIA/EIA B - TCP/IP C - IEEE D - IETF

A - TIA/EIA

Which is the most common type of wired media to connect end devices to an Ethernet LAN? A - Twisted Pair Cable B - Coaxial Cable C - Fiber-Optic Cable

A - Twisted Pair Cable

Which type of network cable is commonly used in backbone networks and telephone companies? A - Twisted Pair Cable B - Fiber Optic Cable C - Shielded Twisted Pair Cable D - Coaxial Cable

A - Twisted Pair Cable

What is the most common type of wired media used by TV companies to connect and carry signals to a set-top box within a home? A - Twisted Pair Cable B - Coaxial Cable C - Fiber-Optic Cable

B - Coaxial Cable

A phone cable uses this type of connector? A - RJ-45 B - RJ-11

B - RJ-11

What type of Ethernet twisted-pair cable may be required when the electrical environment has strong EMI and RFI interference? A - UTP B - STP C - Fiber-Optic D - Coaxial

B - STP

Connecting a unlike-devices, such as a computers to an Ethernet switch, requires what type of UTP Ethernet cable? A - Crossover B - Straight-Through C - STP D - CAT 3

B - Straight-Through

Two devices that use DIFFERENT wires for transmit and receive are known as UNLIKE DEVICES. A "Straight through Cable" is used to send data from: A - Like Devices B - Unlike Devices

B - Unlike Devices

Which type of Ethernet cable should be used to directly connect two devices that both use the same pins for transmitting and receiving data? A - Straight Through Twisted Pair Cable B - Fiber Optic Cable C - Crossover Twisted Pair Cable D - Coaxial Cable

C - Crossover Twisted Pair Cable

Which type of wired media is used to carry digital information at very high speeds over long distances? A - Twisted Pair Cable B - Coaxial Cable C - Fiber-Optic Cable

C - Fiber-Optic Cable

Which of the following is an advantage of coaxial cable compared to UTP? A - Easier to install B - Less Expensive C - Improved Data Carrying Characteristics D - Easier to Troubleshoot

C - Improved Data Carrying Characteristics

What is a purpose of an IP address? A - It identifies the physical location of a data center B - It identifies a location in memory which a program runs C - It identifies the source and destination of data packets D - It identifies a return address for replying to email messages

C - It identifies the source and destination of data packets

Which type of network cable contains multiple copper wires and uses extra shielding to prevent interference? A - Coax B - Fiber-Optic C - STP D - UTP

C - STP

This type of network cable is commonly used by cable TV companies and in satellite communication systems

Coaxial Cable

Which type of cabling is immune to RFI and EFI? A - Coaxial B - UTP C - STP D - Fiber-Optic Cable

D - Fiber-Optic Cable

Which of the following is the most common type of connector used to terminate twisted-pair cabling? A - RJ-10 B - RJ-11 C - RJ-41 D - RJ-45

D - RJ-45

A network administrator would like to determine the path a packet takes to reach the destination 192.168.1.1. What is the best command to determine the network path? A - Ping 192.168.1.1 B - Ipconfig 192.168.1.1 C - Ping 127.0.0.1 D - Tracert 192.168.1.1

D - Tracert 192.168.1.1

How is data transmitted through a copper connection?

Data is encoded into electrical impulses.

How is data transmitted through a fiber-optic connection?

Data is encoded into pulses of light.

How is data transmitted through a wireless connection?

Data is encoded via modulation of specific frequencies of electromagnetic waves.

This type of network cable is comprised of multiple wires that are twisted together in pairs to cancel out EMI (Electrical Magnetic Interference) For more about EMI check out the "Right Hand Rule" it explains how an electrical current in a wire can induce current in a surrounding wire from the magnetic field it produces. The twists help cancel this out. Eddy Currents!

Ethernet (Twisted-Pair Cable)

This high bandwidth network cable transmits data through a strand of plastic or glass with a diameter roughly the size of a human hair

Fiber-Optic Cable

Which command can be used to verify connectivity between two host devices?

Ping

The Internet Control Message Protocol ICMP allows you to determine the reachability of a device and is commonly referred to as a ... ?

Ping Command: ping x.x.x.x

This type of ethernet cable is used in environments in which EMI and RFI are so strong a layer of SHIELDING in the cable is required. A common place these cables can be found include industrial settings like a factory.

STP Cable Shielded Twisted Pair Cable

In a Fiber-Optic cable what is the purpose of the Core?

The core is actually the light transmission element at the center of the optical fiber. This core is typically silica or glass. Light pulses travel through the fiber core.

This network utility/command allows you to see the interconnected networks your data encounters on the way to it's destination ... ?

Traceroute Command in CMD: tracert x.x.x.x

This type of ethernet cable is inexpensive and used in most settings to connect workstations, hosts, and network devices

UTP Cable Unshielded Twisted Pair