Testout Study Guide Chapters 2-4

Your network follows the 100BaseTX specifications for Fast Ethernet. What is the maximum cable segment length allowed?

100 meters

What type of cabling is used with 100BaseTX Fast Ethernet networks?

Cat5 or higher

You need to transfer data from one laptop to another and would like to use an Ethernet cable. You do not have a hub or a switch. Which type of cable should you use?

Crossover

You want the LAN port on a router to the uplink port on a switch. The switch does not support auto-MDI. Which type of cable should you use?

Crossover

Which of the following connectors are used with fiber optic cables and include both cables in a single connector? (select two)

LC MTRJ

At which OSI layer does a router operate to forward network messages?

Network

Which network component connects a device to transmission media and allows the device to send and receive messages?

Network Interface Card

You are working with an existing fiber optic installation in your building. You want to know the length of each cable that runs through the walls. Which tool should you use?

OTDR

At which layer of the OSI models do hubs operate?

Physical

Which of the following devices operates at the OSI model Layer 2?

Switch

Consider the 850 nm multimode fiber optic cable shown below. How much loss can you expect between the transmitter and the receiver?

-1.2 dB

You want to implement an Ethernet network at very long distances using fiber optic cables. Which standard and cable type would you choose? (Select two.)

1000 BaseLX Single-mode fiber

You have been tasked with designing a high-speed Ethernet network. Your client's building already has 150-ohm shielded twisted pair (STP) wiring installed. Due to budget constraints, they have asked you to reuse the existing wiring instead of installing new fiber optic cabling. Which Ethernet standard could you implement in this situation?

1000BaseCX

Which Gigabit Ethernet standard can support long network segments up to a maximum of 5 km when used with single-mode fiber optic cable?

1000BaseLX

Which Gigabit Ethernet standard uses multimode fiber optic cabling and supports network segments up to a maximum of 550 meters long?

1000BaseSX

You have been tasked with designing an Ethernet network. Your client needs to implement a very high-speed network backbone between campus buildings, some of which are around 300 meters apart. Multi-mode fiber optic cabling has already been installed between buildings. Your client has asked that you use the existing cabling. Which Ethernet standard meets these guidelines? (Choose two.)

1000BaseSX 10GBaseSR

Which of the following use the CSMA/CD access method?

1000BaseT

Which of the following Ethernet standards uses fiber-optic cabling? (Select two.)Which of the following Ethernet standards uses fiber-optic cabling? (Select two.)

100BaseFX 1000BaseLX

You are planning a network for an educational campus. Due to the size of the buildings and the distance between them, you have elected to use 10BaseFL hubs, cabling, and network interface cards. What is the maximum length for the network cable between a workstation and a hub?

2000 meters

Your network follows the 100BaseFX specifications for Fast Ethernet and uses half-duplex multimode cable. What is the maximum cable segment length allowed?

412 meters

While viewing the status of the interfaces on a Cisco switch, you see an abnormally large number of CRC errors on one interface. This interface is connected to a user's workstation located in a cubicle on the second floor. What could cause this to happen?

A strong EMI emitter near the cable run connected to that interface.

Which of the following is a valid MAC address?

AB.07.CF.62.16.BD

A host wants to send a message to another host with the IP address 115.99.80.157. IP does not know the hardware address of the destination device. Which protocol can be used to discover the MAC address?

ARP

Which type of polish grade uses green-colored connectors to help you keep from using the wrong connector type?

Angled Physical Contact (APC)

You need to replace a fiber optic cable that is connecting two switches together. You inspect the existing fiber cable and determine that it uses LC connectors. You also notice the cable's ferrule has a slight slant to it. Which polish grade should you use to replace the existing cable?

Angled Physical Contact polish

You are working with an older 10Base2 Ethernet network. Which of the following connector types will you most likely encounter?

BNC

Which of the following is a valid MAC address?

C0-34-FF-15-01-8E

The media access control method of all Ethernet networks is____________.

CSMA/CD

Which of the following cable types often includes a solid plastic core that keeps the twisted pairs separated?

Cat 6

What is the minimum cable specification that supports 1000 Mbps Ethernet?

Cat5e

You manage a network that uses 1000BaseT Ethernet. You find that one device communicates on the network at only 100 Mbps. Which tool should you use to test the drop cable and the connection to the network?

Certifier

Your are building network cables and attaching RJ45 connectors to each end. Which tool do you need for this task?

Crimping tool.

A switch is associated with which OSI model layer?

Data Link

Your company purchases a new bridge that filters packets based on the MAC address of the destination computer. On which layer of the OSI model is this device functioning?

Data Link

Which of the following describes the point where the service provider's responsibility to install and maintain wiring and equipment ends, and the customer's responsibility begins?

Demarc.

You have a cable internet connection at home. The installer had connected the router near the outside wall of your house with RG6 cable. You move the cable router a distance of 50 meters using RG8 cables and special connector adapters. Which condition are you most likely to experience?

Echo

You have just signed up for a broadband home Internet service that uses coaxial cable. Which connector type will you most likely use?

F-type

Ethernet 100BaseFX networks use what type of cabling?

Fiber optic

Which of the following is the best device to deploy to protect your private network from a public untrusted network?

Firewall

You are the administrator of your company's network. You want to prevent unauthorized access to your intranet from the Internet. Which of the following should you implement?

Firewall

You are the network administrator for a small organization. Recently, you contracted with an ISP to connect your organization's network to the Internet to provide users with Internet access. Since doing so, it has come to your attention that an intruder has invaded your network from the Internet on three separate occasions. What type of network hardware should you implement to prevent this from happening again?

Firewall

You want a switch to have the ability to modify the media type the switch port supports. Which type of module might you use to make this possible?

GBIC SFP

Which of the following devices does not segment the network?

Hub

Which of the following devices operates at the OSI model Layer 1?

Hub

Which of the following hardware devices regenerates a signal out all connected ports without examining the frame or packet content? (select two)

Hub & Repeater

Which of the following are advantages of using fiber optic cabling for a network? (Select two)

Immunity to electromagnetic interference Greater cable distances without a repeater

You have a network that occupies both floors of a building. The WAN service provider has installed the line for the WAN service in a wiring closet on the main floor. You have a second wiring closet on the second floor directly above the wiring closet that holds the demarc. Which of the following terms describes the closet on the second floor?

Intermediate distribution frame IDF.

Which of the following best describes how a switch functions?

It connects multiple cable segments or devices and forwards frames to the appropriate segment.

Which of the following is true about the MAC address?

It is typically represented by hexadecimal numbers It is a 48-bit address

Which of the following statements accurately describes how a modem works?(select two)

It modulates digital data from the PC into analog data and transmits it on a telephone network It demodulates analog data from a telephone network into digital PC data

Which recommendation should you follow while using 110 blocks for connecting Cat 5 and higher data cables?

Keep wire pairs twisted up to within one-half of an inch of the connector.

At which OSI model layer does a media converter operate?

Layer 1

At which of the following OSI layers does a router operate?

Layer 3

Which of the following terms identifies the wiring closet in the basement or a ground floor that typically includes the demarcation point?

Main Distribution Frame (MDF).

You have a server that has a 100BaseFX network interface card that you need to connect to a switch. The switch only has 100BaseTX switch ports. Which device should you use?

Media Converter

You want to measure the voltage, amps, and ohms of various devices. Which tool should you use?

Multimeter

You are installing networking wiring for a new Ethernet network at your company's main office building. The project specifications call for Category 5 UTP network cabling and RJ-45 wall jacks. Near the end of the project, you run out of wire before the last few runs are complete. You have a spool of Category 3 network cable in storage. Upon investigation, it appears very similar to Category 5 wiring. Should you substitute Category 3 cabling for Category 5 cabling to finish the project?

No. Cat 5e cabling has more twists per inch than Cat 3 cabling, reducing cross-talk and supporting higher data rates.

You are building a new network for a small startup financial services company. Security is paramount, so each organization within the company will have their own network segments separated by routers. Funds are limited, and you have been asked to keep costs to a minimum. You have acquired a used fiber optic switch and want to use it to create a fiber optic backbone that interconnects all of the routers. You purchased several used multi-mode GBIC modules on eBay that you will install in each router to allow them to connect to the switch. Both the switch and the GBIC modules use MTRJ connectors. You purchased several used 1-meter multi-mode patch cables from Amazon. But when they arrived, you noticed that they use LC connectors. Fortunately, with some force, you found that you are able to get the LC connectors on the cables to lock into the MTRJ connectors on the GBIC modules and on the switch. Will this implementation work?

No. You should purchase patch cables that use MTRJ connectors.

You are building a new network for a small startup financial services company. Security is paramount, so each organization within the company will have its own network segment separated by a router. However, funds are limited, and you have been asked to keep costs to a minimum. You have acquired a used fiber optic switch and want to use it to create a fiber optic backbone that interconnects all of the routers. You purchased several used single-mode GBIC modules on eBay that you will install in each router to allow them to connect to the switch. Both the switch and the GBIC modules use MTRJ connectors. You connect each module to the switch with 1-meter multimode patch cables. Will this implementation work?

No. You shouldn't use multi-mode patch cables with single-mode GBIC modules.

Which of the following is used to terminate individual wires from a 25 pair or 100 pair cable using female RJ45?

Patch panel.

What topology is used with 100BaseTX Fast Ethernet networks? (Select two.)

Physical star/logical bus Physical star/logical star

Which pins in an RJ45 connector are used to transmit data when used on a 100BaseT Ethernet network?

Pin 1 Pin 2.

You need to terminate a Cat 6 UTP cable with an RJ45 connector. Your organization's IT policy states that all cable connectors must be wired according to TIA568 standards.

Pin 1. White with green stripe. Pin 2. Solid green. Pin 3. White with orange stripe. Pin 4. Solid blue. Pin 5. White with blue stripe. Pin 6. Solid orange. Pin 7. White with brown stripe. Pin 8. Solid brown.

You need to terminate a Cat 6 UTP cable with an RJ45 connector. Your organization's IT policy states that all cable connectors must be wired according to TIA568B standards.

Pin 1. White with orange stripe. Pin 2. Solid orange. Pin 3. White with green stripe. Pin 4. Solid blue. Pin 5. White with blue stripe. Pin 6. Solid green. Pin 7. White with brown stripe. Pin 8. Solid brown.

You are adding new wires in your building for some new offices. The building has a false ceiling that holds the lights. You would like to run your Ethernet cables in this area. Which type of cable must you use?

Plenum rated cable

You are working with 25 pair wires and 66 blocks. You have pushed the wires onto the 66 block, but now you need to cut off the excess end of each wire. Which tool should you use?

Punch down tool.

You have a small home network connected to the internet using an RG-6 cable. You need to move the router connecting the network to the internet, but can't find any RG-6 cable.

RG-59

F-Type connectors are typically used with cables using which of the following standards? (Select two)

RG-59 RG-6

Which of the following cables offers the best protection against EMI?

RG-6

Which of the following connectors is used with Ethernet 100BaseT networks?

RJ45

Which of the following are requirements of the 1000BaseT Ethernet standards? (Select three.)

RJ45 connectors Cat 5e cabling The cable length must be less than or equal to 100m

Which of the following connector types would you most likely use to connect to a T1 WAN service?

RJ48c

Which of the following hardware devices links multiple networks and directs traffic between networks?

Router

Which of the following connectors usually require polishing as part of the assembly process? (select two)

SC ST

Which of the following connectors is used with fiber optic cables and requires that you use a twisting motion to connect it?

ST

An eight-port switch receives a frame on port number 1. The frame is addressed to an unknown device. What will the switch do?

Send the frame out ports 2 through 8

You use Cat5e twisted pair cable on your network. Cables are routed through walls and the ceiling. A user puts a screw in the wall to hang a picture and pierces the cable so that a signal sent on pin 1 arrives on the cable connected to pin 7. Which term describes this condition?

Short Circuit

Which type of optical fiber is normally used to connect two buildings that are several kilometers apart?

Single-Mode

You would like to implement 10 Gbps Ethernet over a distance of 1 kilometer or greater. Which of the following would be the minimum requirement for the implementation? (Select two.)

Single-mode fiber 10GBaseLR Standards

Of the following cables, which offers the best protection against EMI?

Single-mode fiber optic

Users report that the internet is no longer accessible. You suspect that the line connecting your building to the internet is not working properly. Which of the following allows the service provider to remotely test the local loop?

Smartjack

Which of the following physical topologies are used with Ethernet networks? (Select two)

Star Bus

Which of the following devices operate at OSI model layer? (select two)

Switch & Network Interface Card

Which of the following devices operate at the Data Link layer of the OSI model? (select three)

Switches Bridges NICs

You have been asked to document the wiring in your building. You would like to identify the length of each Cat5 cable to verify that it meets Ethernet standards. You need to identify the length of the cables, but most cables run through walls and ceilings, making them difficult to trace. Which tool should you use?

TDR

Which of the following is true about single-mode fiber optic network cabling?

The central core is smaller than standard multi-mode fiber optic cabling core

A network is connected following the IEEE 802.3 specifications. Which of the following best describes when a device can transmit messages?

The device listens to determine if the transmission media is free.

Which of the following of are characteristics of a coaxial network cable? (Select three.)

The ends of the cable must be terminated It uses two concentric metallic conductors It has a conductor made from copper in the center of the cable

Which of the following are characteristics of an LC fiber optic connector? (Choose two)

They are half the size of standard connectors They use a housing and latch system similar to an RJ45 UTP connector

Which of the following are characteristics of an MTRJ fiber optic connector? (select two)

They can be used with multi-mode fiber optic cables They use metal guide pins to ensure accurate alignment

You've connected a cable certifier to an RJ45 wall jack, and the output shown below is displayed on the device. What does this output indicate? (Select two.)

This is a crossover cable. The cable is functioning correctly.

Which of the following is a good reason to install a firewall?

To prevent hackers from accessing your network.

Which device sends signals from a computer onto a network?

Transceiver

You are troubleshooting a connectivity problem in which one client system is unable to connect to a server. Both the server and client system are connected to the same Ethernet network switch. No other users have complained of a problem, and you suspect that faulty network cabling might be to blame. Which of the following troubleshooting steps are you most likely to perform first?

Use a cable tester to test the cable between the computer system and the network switch

Method would you use to create a crossover cable?

Use the T568A standard on one connector and the T568B standard on the other connector.

You have a network that occupies all three floors of a building. The WAN service provider has installed the line for the WAN service into the building in a wiring closet on the main floor. You have a wiring closet on the two remaining floors directly above the wiring closet on the main floor. What would you use to connect the wiring closets together?

Vertical cross connect.

How do switches and bridges learn where devices are located on a network?

When a frame enters a port, the source MAC address is copied from the frame header.

When would you typically use an RJ11 connector?

When connecting a phone to a phone line.

You want to use the T568B standard for adding connectors to your Cat5 cable. Starting with pin 1, which order should you use for the wires within the connector?

White/orange, orange, white/green, blue, white/blue, green, white/brown, brown.

Why might you use an RJ11 connector?

You want to connect your computer to the internet with a DSL modem.