Networking - Chapter 3: Network Cabling and Hardware Devices

You need to terminate a Cat6 UTP cable with an RJ45 connector. Your organization's IT policy states that all cable connectors must be wired according to TIA568B standards. Drag the UTP wire on the left to the correct pin on the RJ45 connector on the right. Drag: A. White with orange stripe B. Solid orange C. White with green stripe D. Solid blue E. White with blue stripe F. Solid green G. White with brown stripe H. Solid brown Drop: 1. Pin 1 2. Pin 2 3. Pin 3 4. Pin 4 5. Pin 5 6. Pin 6 7. Pin 7 8. Pin 8

A-1 B-2 C-3 D-4 E-5 F-6 G-7 H-8

Which of the following is a valid MAC address? A. AB.07.CF.62.16.BD B. 145.65.254.10 C. 95ABC2F4.ABC5.569D.43BF D. FABC.875E.9BG6

A. AB.07.CF.62.16.BD

You are making Ethernet drop cables using Cat5e cables and RJ45 connectors. You need to remove the plastic coating over the cable to expose the individual wires. Which tool should you use? A. Cable stripper B. Crimping tool C. Snips D. Punch down tool

A. Cable stripper

Which of the following hardware devices regenerate a signal out of all connected ports without examining the frame or packet contents? (Select two.) A. Hub B. Bridge C. Repeater D. Router E. Switch

A. Hub C. Repeater

Which of the following BEST describes how a switch functions? A. It connects multiple cable segments (or devices) and forwards frames to the appropriate segment. B. It connects multiple cable segments (or devices) and broadcasts frames to all of its ports. C. It connects multiple segments of different architectures. It translates frames and forwards them to the appropriate segment. D. It connects multiple segments of different architectures. It translates frames and broadcasts them to all of its ports.

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

Which of the following statements accurately describe how a modem works? (Select two.) A. It demodulates analog data from a telephone network into digital PC data. B. It modulates digital data from a PC into analog data and transmits it on a telephone network. C. It demodulates analog PC data into digital data that can be transmitted through a telephone network. D. It communicates over a telephone network using digital signals. E. It modulates digital data from a telephone network into analog data that a PC can use.

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

Which of the following are characteristics of a coaxial network cable? (Select two.) A. It uses two concentric metallic conductors. B. The conductors within the cable are twisted around each other to eliminate crosstalk. C. It has a conductor made from copper in its center. D. It is composed of four pairs of 22-gauge copper wire. E. It uses RJ45 connectors.

A. It uses two concentric metallic conductors. C. It has a conductor made from copper in its center.

Which recommendation should you follow while using 110 blocks for connecting Cat5 and higher data cables? A. Keep wire pairs twisted up to within one half of an inch of the connector. B. Connect wires using the T568B standard. C. Connect wires using the T568A standard. D. Use C-5 connectors.

A. 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? A. Layer 1 B. Layer 2 C. Layer 3 D. Layer 4

A. Layer 1

You want to measure the voltage, amps, and ohms of various devices. Which tool should you use? A. Multimeter B. Voltage event recorder C. Toner probe D. Certifier

A. Multimeter

Which tool should you use to extend network services beyond the demarc? A. Punch down tool B. Tone generator C. Crimper D. Patch panel

A. Punch down tool

Which of the following connectors is used with Ethernet 100BaseTX networks? A. RJ45 B. GG45 C. BNC D. ST

A. RJ45

Which of the following hardware devices links multiple networks and directs traffic between networks? A. Router B. Bridge C. Repeater D. Hub

A. Router

Users report that the internet is no longer accessible. You suspect that the line connecting your building to the internet isn't working properly. Which of the following allows the service provider to remotely test the local loop? A. Smartjack B. Demarc C. Horizontal cross connect D. Demarc extension

A. Smartjack

Which of the following are characteristics of an LC fiber optic connector? (Select two.) A. They use a housing and latch system similar to an RJ45 UTP connector. B. They can be used with either fiber optic or copper cabling. C. They use a one-piece bayonet connecting system. D. They are threaded. E. They are half the size of standard connectors.

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

Rack heights vary from a few rack units to many rack units. The most common rack heights are 24U and 42U. How tall is a 24U rack? A. 30 inches B. 42 inches C. 48 inches D. 36 inches

B. 42 inches

While viewing the status of 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 that is located in a cubicle on the second floor. What could cause this to happen? A. An incorrect subnet mask configured on the workstation. B. A strong EMI emitter near the cable connected to that interface. C. Two hosts on the network with the same MAC address. D. Collisions between two or more network hosts.

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

You're working with an older 10Base2 Ethernet network. Which of the following connector types will you MOST LIKELY encounter? A. ST B. BNC C. RJ11 D. type

B. BNC

Which of the following are true about a MAC address? (Select two.) A. It is typically represented by octets of decimal numbers between 0-255. B. It is typically represented by hexadecimal numbers. C. It is a 48-bit address. D. It is a 32-bit address. E. It is a 64-bit address.

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

Which of the following is true about single-mode fiber optic network cabling? A. It's less expensive than multi-mode fiber optic cabling. B. Its central core is smaller than the standard multi-mode fiber optic cabling core. C. It's optimized for 850 nm and 1300 nm light sources. D. It has shorter segment lengths than multi-mode fiber optic cabling.

B. Its central core is smaller than the standard multi-mode fiber optic cabling core.

At which OSI layer does a router operate to forward network messages? A. Physical B. Network C. Data Link D. Transport

B. Network

Which network component connects a device to transmission media and allows the device to send and receive messages? A. Client B. Network interface card C. Protocol D. Server

B. Network interface card

You're building a new network for a small financial services startup 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've been asked to keep costs to a minimum. You've acquired a used fiber optic switch, and you want to use it to create a fiber optic backbone that interconnects all of the routers. You've purchased several used single-mode GBIC modules on eBay that you'll install on 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? A. No. You shouldn't use standard fiber optic switches to create a backbone network for routers. B. No. You shouldn't use multi-mode patch cables with single-mode GBIC modules. C. Yes. All of the requirements for implementing a fiber optic network have been met. D. No. You should purchase fiber optic equipment that use FC connectors.

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

You have a small home network connected to the internet using an RG-6 cable. You need to move the router, but you can't find anymore RG-6 cabling. Which cable type could you use instead? A. Cat 5e B. RG-59 C. Cat 3 D. RG-58

B. RG-59

Which of the following connector types would you most likely use to connect to a T1 WAN service? A. GG45 B. RJ48c C. RJ45 D. RJ11

B. RJ48c

Which of the following connectors usually require polishing as part of the assembly process? (Select two.) A. F-type B. SC C. ST D. RJ45 E. BNC

B. SC C. ST

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? A. MAC B. SFP C. GBIC D. QSFP E. ARP

B. SFP C. GBIC

Which of the following connectors is used with fiber optic cables and requires that you use a twisting motion to connect it? A. BNC B. ST C. F-type D. SC

B. ST

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.) A. There are multiple shorts on this cable. B. This is a crossover cable. C. There are multiple open pins on this cable. D. This is a straight-through cable. E. The cable is functioning correctly.

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

You are preparing to attach wires in a 110 block. You want to connect the wires and trim off the excess at the same time. Which of the following should you do? (Select two.) A. Use the end without a cutting blade. B. Use a punch down tool with a notched blade. C. Use a punch down tool with a straight blade. D. Point the cut side of the tool towards the wire end. E. Point the cut side of the tool toward the connected end of the wire.

B. Use a punch down tool with a notched blade. D. Point the cut side of the tool towards the wire end.

You have a network that occupies all three floors of a building. The WAN service provider has installed the line 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? A. Horizontal cross connect B. Vertical cross connect C. Demarc extension D. Smart jack

B. Vertical cross connect

How do switches and bridges learn where devices are located on a network? A. When a frame enters a port, the destination MAC address is copied from frame header. B. When a frame enters a port, the source MAC address is copied from the frame header. C. When a frame enters a port, the destination IP address is copied from the frame header. D. When a frame enters a port, the source IP address is copied from the frame header.

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

Why might you use an RJ11 connector? A. You want to connect a 10GBaseT network to a switch card using a Cat 6 cable. B. You want to connect your computer to the internet with a DSL modem. C. You want to upgrade your 10BaseT network to 100BaseTX. D. You want to connect your computer to a network using a Cat 7 cable.

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

You've decided to implement Gigabit Ethernet on your network; each switch port is connected to a single device. Following the installation, you find one device connected to a switch that's only running at 100 Mbps. Which of the following is MOST LIKELY the cause? A. Collisions B. A short C. Crosstalk D. Impedance

C. Crosstalk

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 begins? A. Vertical cross connect B. IDF C. Demarc D. Punch down block

C. 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? A. FEXT B. NEXT C. Echo D. EMI

C. Echo

Which of the following are advantages of using fiber optic cabling for a network? (Select two.) A. Lower installation cost B. No special training or equipment is required C. Greater cable distances without a repeater D. Easy to work with E. Immunity to electromagnetic interference

C. Greater cable distances without a repeater E. Immunity to electromagnetic interference

You're building a new network for a small financial services startup company. Security is paramount, so each organization within the company will have their own network segments separated by routers. Funds are limited, and you've been asked to keep costs to a minimum. You've acquired a used fiber optic switch, and you want to use it to create a fiber optic backbone that interconnects all of the routers. You've purchased several used multi-mode GBIC modules on eBay that you'll install on each router to allow them to connect to the switch. Both the switch and the GBIC modules use MTRJ connectors. You've 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're 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? A. Yes. All of the requirements for implementing a fiber optic network have been met. B. No. You should use single-mode patch cables to connect a GBIC module to a switch. C. No. You should purchase patch cables that use MTRJ connectors. D. No. You should use a specialized backbone fiber optic switch to create a backbone network for routers.

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

You're 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? A. Smartjack B. Toner probe C. OTDR D. Multimeter

C. OTDR

You're adding new wires in your building for some new offices. The building has a false ceiling that holds the lights and provides an air path for heating and air conditioning. You'd like to run your Ethernet cables in this area. Which type of cable must you use? A. Fiber optic cables B. STP cables C. Plenum-rated cable D. Cat 5e or Cat 6a cables

C. Plenum-rated cable

Which type of optical fiber is normally used to connect two buildings that are several kilometers apart? A. Multi-mode fiber B. Shielded twisted pair C. Single-mode fiber D. Coaxial cable

C. Single-mode fiber

Which of the following cables offers the best protection against EMI? A. Cat 5 B. RG-6 C. Single-mode fiber optic D. Cat 5e

C. Single-mode fiber optic

Which of the following are characteristics of an MTRJ fiber optic connector? (Select two.) A. They must never be used with single-mode fiber optic cables. B. They use a keyed bayonet. C. They can be used with multi-mode fiber optic cables. D. They're called push-in-and-twist connectors. E. They use metal guide pins to ensure accurate alignment.

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

Which device sends signals from a computer onto a network? A. Router B. Cable C. Transceiver D. Gateway

C. Transceiver

A rack's height is measured in rack units (Us). How tall is a single rack unit? A. 1.5 inches tall B. 2 inches tall C. 1.25 inches tall D. 1.75 inches tall

D. 1.75 inches tall

Which of the following uses metal clips placed over plastic slots to connect individual copper wires? A. 66 block B. 25 pair C. 100 pair D. 110 block

D. 110 block

Multi-mode fiber is designed to operate at which of the following wavelengths? A. 1310 nm and 1550 nm B. 850 nm and 1310 nm C. 1300 nm and 1550 nm D. 850 nm and 1300 nm

D. 850 nm and 1300 nm

A host wants to send a message to another host that has an IP address of 115.99.80.157, but it does not know the destination device's hardware address. Which protocol can be used to discover the MAC address? A. IGMP B. ICMP C. DNS D. ARP

D. ARP

You need to replace a fiber optic cable that's connecting two switches together. You inspect the existing cable and determine that it uses LC connectors. You also notice that the cable's ferrule has a slight slant to it. Which polish grade should you use to replace the existing cable? A. Ultra Physical Contact polish B. Physical Contact polish C. Flat Physical Contact polish D. Angled Physical Contact polish

D. Angled Physical Contact polish

Which of the following is a valid MAC address? A. 83-5A-5B-0B-31-55-F1 B. 34-9A-86-1G-B3-24 C. 73-99-12-61-15 D. C0-34-FF-15-01-8E

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

Which of the following cable types often includes a solid plastic core that keeps the twisted pairs separated? A. Cat 3 B. Cat 5 C. Cat 5e D. Cat 6

D. Cat 6

You've just signed up for a broadband home internet service that uses coaxial cabling. Which connector type will you MOST LIKELY use? A. RJ45 B. BNC C. RJ11 D. F-type

D. F-type

You are the network administrator for a small organization. Recently, you contracted with an ISP to connect your organization's network to the internet. Since doing so, it has come to your attention that an intruder has invaded your network from the internet on three separate occasions. Which type of network hardware should you implement to prevent this from happening again? A. Router B. Hub C. Switch D. Firewall

D. Firewall

Which of the following creates a visual representation of physical components along with a clearly defined set of principles and procedures? A. Wiring diagram B. Logical network diagram C. Rack diagram D. Floor plan

D. Floor plan

Which of the following terms identifies the wiring closet in the basement or ground floor that typically includes the demarcation point? A. Horizontal cross connect B. IDF C. 110 block D. MDF

D. MDF

Which of the following connectors are used with fiber optic cables and include both cables in a single connector? (Select two.) A. BNC B. SC C. ST D. MTRJ E. LC

D. MTRJ E. LC

You have a server that has a 100BaseFX network interface card you need to connect to a switch. The switch only has 100BaseTX switch ports. Which device should you use? A. Bridge B. Repeater C. Hub D. Media converter

D. Media converter

You're installing network wiring for a new Ethernet network at your company's main office building. The project specifications call for Cat 5e UTP network cabling and RJ45 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 Cat 3 network cable in storage. Upon closer inspection, it appears very similar to the Cat 5e wiring. To finish the project, should you use the Cat 3 cabling as a substitute for the Cat 5e cabling? A. Yes. You can use Cat 3 cabling as a substitute for Cat 5e cabling since they're electrically identical. B. No. The sheath surrounding Cat 5e cabling is much thicker than the Cat 3 sheath, creating an extra layer of shielding that reduces crosstalk and supports higher data rates. C. No. Cat 5e cabling uses a thicker copper wire than Cat 3 cabling, enabling higher data transmission rates. D. No. Cat 5e cabling has more twists per inch than Cat 3 cabling, reducing crosstalk and supporting higher data rates.

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

Which of the following terminates individual wires from a 25-pair or 100-pair cable using female RJ45 ports? A. Horizontal cross connect B. 66 block C. 110 block D. Patch panel

D. Patch panel

At which layer of the OSI model do hubs operate? A. Data Link B. Internet C. Layer 3 D. Physical

D. Physical