Network+ CE - Domain 4.0
A cable installer is testing fiber optic cable for spectral attenuation with the goal of ensuring that each channel has enough power to support wavelength division multiplexing. What tool is the cable installer using? A.OSA B.OTDR C.Tone generator D.Multimeter
A
A cable installer uses snips to cut the cable and strip the insulation to install connectors. What single tool can the installer use to do this when working with multiple types of cable? A.Cable stripper B.Cable crimper C.Fusion splicer D.test access point (TAP)
A
A network engineer is looking to join two strands of fiber cabling with minimal signal loss. What tool would best allow for this action to be completed? A.Fusion splicer B.Cable stripper C.Spectrum analyzer D.Cable tester
A
A network port does not seem to be working properly. Which of the following tools can be used to test if the port is sending out data? A.Loopback plug B.Patch cable C.Crimper D.OTDR
A
A network technician is trying to ensure that each channel has sufficient power in a WDM. Which of the following should they use? A.Spectrum analyzer B.Cable tester C.Tone generator D.Sniffer
A
An installer is cabling a new building and is laying cable in every area of the building that may need a computer or telephone. What kind of cable is the installer laying? A.STP (shielded twisted pair) B.UTP (unshielded twisted pair) C.Fiber optic D.Crossover cable
B
An organization hired a new network technician who discovered that none of the previous technicians had labeled the cabling in the organization's headquarters building. What tool can the technician use to locate the ends of each cable for labeling? A.Multimeter B.Network tone generator C.Wire map tester D.Cable tester
B
What is the term used when an ethernet cat-5 or cat-6 cable has individual wires crimped to the wrong spot? A.Cross over B.Straight-through C.Incorrect pinout D.Duplex
C
What tool can be used to test ethernet cabling? A.Roll over B.Snip C.Wire map D.Spectrum analyzer
C
A fiber optic cable is experiencing significant signal loss. Which of the following items should the engineer investigate to determine the cause? (Select all that apply.) A.Incorrect transceivers B.Dirty optical cables C.Mismatched coupled cables D.Electromagnetic interference
A,B,C
An administrator suspects there is too much traffic on a network's backbone. What method can the administrator use to identify which device is experiencing issues? A.Spectrum analyzer B.LED status indicators C.Light meter D.Optical time-domain reflectometer (OTDR)
B
An engineer connects two network devices together that do not have the Auto-MDI/MDIX enabled by default. The devices each have a medium dependent interface (MDI) port. For the devices to properly communicate with one another, the engineer uses which type of cable? A.Bidirectional B.Crossover C.Duplex D.Straight-through
B
Data travels across the network for a period of time and encounters many types of interference and errors on the first two network layers. What is the data received at the destination and measured at the network or transport layers known as? A.Speed B.Throughput C.Attenuation D.Power over ethernet
B
A cable installer configures the insulation-displacement connection (IDC) terminals on a patch panel; what tool will the installer need for the cabling? A.Cable stripper B.Cable crimper C.Snips D.Punchdown tool
D
What tool can be used to cut ethernet cabling? A.Snip B.Wire map C.Roll over D.Cable tester
A
A network technician suspects a short in the network cable and wants to test it. Identify which of the following tools will provide this capability. A.Tone generator B.Multimeter C.Spectrum analyzer D.Loopback adapter
B
An IT help desk technician troubleshoots a computer that will not connect to the network. The computer's network adapter has the correct configuration. The technician checks the physical connection and discovers that the wall jack and network patch panel do not have a label. Which of the following tools should the technician use to locate the physical connection? A.Cable tester B.Tone generator C.Spectrum analyzer D.Packet sniffer
B
An IT engineer installs equipment in a new network closet. While establishing all of the connections, the engineer utilizes a punch down tool. Considering the possible uses, which of the following does the engineer use the tool for? A.Discovering ports B.Determining voltage and continuity C.Checking faulty ports D.Fixing conductor connections
D
Which twisted cable type uses a foil screen in an effort to reduce crosstalk? A.Single mode B.UTP C.Coaxial D.STP
D
A user submitted a ticket saying they only have 1 bar of signal at their desk and further suggested that their location from the access point could be part of the issue. The technician confirmed that no environmental factors or nearby devices were causing the degradation in signal. What issue is the user having in regards to wireless access? A.Distance B.Speed C.Interference D.RF attenuation
A
An administrator used a cable tester to ensure that a cable met the proper performance characteristics for interference. However, when the administrator connected the cable from a host to the switch, the host could not communicate on the network. Why might this happen? A.Crossed pair cable B.Rollover cable C.Unshielded cable D.Dirty optical cable
A
An organization needs to monitor the network with a packet sniffer. The network is using gigabit ethernet over copper wire so the frames will also need signal regeneration. What device can the organization use to accomplish both the network monitoring and signal regeneration? A.TAP B.Wire map C.Fusion splicer D.Power over ethernet
A
Users report that one of the access points seems not to be working properly. When they go to download files, it takes forever. The sysadmin noticed that the access point is pretty old and should be replaced with a more powerful one. What issue would replacing the access point help to fix? A.Speed B.Interference C.RF attenuation D.Distance
A
Which cable type can be rated fire-retardant and is appropriate for building crawl spaces? A.Plenum B.PVC C.F-type D.Coaxial
A
Attenuation is the loss of signal strength. Specifically, it is the ratio between the signal strength from where the signal starts to where it ends. How is the loss of signal strength expressed? A.Noise B.Throughput C.Decibels D.Interference
C
Although fiber optic cable does not suffer from attenuation in the same way as copper cable, there will still be some loss of signal strength from one end of the connection to the other. Which of the following can contribute to signal loss in fiber? (Select all that apply.) A.Dirty optical cables B.Mismatched coupled cables C.Incorrect transceivers D.Electromagnetic interference
A,B,C
An administrator is using a wire map tester to identify different types of issues with cabling. What kinds of issues can the wire map tester detect? (Select all that apply.) A.Incorrect pin-out B.Short C.Continuity D.Bad port
A,B,C
A server has stopped communicating on the network, and the administrator suspects the network interface card (NIC) or the switch port may be bad. What tools can the administrator use to verify? (Select all that apply.) A.LED status indicators B.Optical spectrum analyzer C.Loopback adapter D.TAP
A,C
An organization is planning to use power over ethernet (POE) to supply power to the wireless access points spread throughout the building. What cabling solution will support the organization's goals of achieving PoE? (Select all that apply.) A.Shielded cabling B.Only Cat5e cabling C.Cat 3 cable or better D.Unshielded cabling
A,C
A large university campus experiences communication problems between two buildings over a fiber connection. A cabling engineer uses a optical time domain reflectometer to troubleshoot the problem. For which purpose does the engineer use this piece of equipment? A.Detection of a line break B.Location of a line break C.Line voltage and continuity check D.Electromagnetic interference detection
B
An administrator powered up a new switch and needs to configure it from the command line interface. What kind of cable will the administrator use to connect to the switch's terminal? A.Crossover cable B.Console cable C.Straight through cable D.Unshielded twisted pair cable
B
An installer is laying cable in the ceiling alongside the building's ventilation system. What kind of cable must the installer use? A.Nonplenum cable B.Plenum cable C.Shielded twisted pair D.Riser cable
B
An organization's datacenter has a raised floor that allows all cables from the servers to run under the floor to the switches. What kind of cabling is the datacenter using? A.Nonplenum cable B.Plenum cable C.Shielded twisted pair D.Riser cable
B
A network is running slow. To determine why the administrator wants detailed properties for the cable run, including how much attenuation, crosstalk, noise, and resistance are on it. What tool should the administrator use to get all of this information? A.OTDR B.Multimeter C.Cable tester D.Spectrum analyzer
C
An administrator connected a system on one side of a large telecommunications center to a system on the opposite side of the center with a crossover cable. However, the two systems are unable to communicate due to the distance of the cable. What is happening to the signal on the cable? A.Interference B.Noise C.Attenuation D.Throughput
C
An administrator connected both a router and a gateway that had dissimilar media types. What kind of issue does this cause? A.Duplexing issue B.Short issue C.Transceiver issue D.Shielded cable issue
C
An administrator has plugged in a loopback adapter. What is the administrator testing for? A.Throughput B.A crossed pair C.A bad port D.An incorrect pin-out
C
An administrator manually configured a server's network interface card (NIC) settings to run at 100Mbps and connected the server to the switch. However, communications between the server and other hosts on the network were extremely slow. When the administrator checked the light on the server's switch port, it was blinking amber. What kind of issue does this indicate? A.Transceiver issue B.Short issue C.Duplexing issue D.Shielded cable issue
C
An administrator measures the resistance between the two ends of a cable and verifies that the cable has a break. What tool allows the administrator to test the cable in this manner? A.Loopback adapter B.Tone generator C.Multimeter D.TAP (test access point)
C
A cable installer is using a special tool to affix an RJ-45 connector to an Ethernet cable. What tool has this purpose? A.Fusion splicer B.Punchdown tool C.Snips D.Cable crimper
D
A network admin must terminate phone lines onto a 66 block. Which tool would complete this task? A.Wire stripper B.Crimper C.Krone D.Punch down tool
D
An administrator expected a newly installed network cable to operate at 1Gbps. However, when the administrator tested the cable, the speed was never actually that fast. What is the actual performance of the data traveling across the media called? A.Power over ethernet B.Speed C.Attenuation D.Throughput
D
An electrician creates several cat 6 cables to connect new computers to a network at a small company. The IT staff discovers that two cables do not work properly due to faulty crimping. Of the available methods to inspect the cables, which of the following should the IT staff utilize to find cables that do not work? A.Packet sniffer B.Tone generator C.Spectrum analyzer D.Cable tester
D
An underground fiber optic cable is no longer transmitting data, and the administrator suspects there may be a break somewhere. What tool can the cable crew use to pinpoint the exact location of the break? A.Optical spectrum analyzer B.Fusion splicer C.Fiber light meter D.Optical time-domain reflectometer
D
Computers connected to a network in a new building are experiencing slow network speeds. An administrator is troubleshooting the issue and sees that the new building uses the plenum space for the ethernet cable runs. How could this cause slow network speeds? A.By reversing the transmit and receive B.By causing an open C.By causing a short D.By causing interference
D
Which of the following tools would a network admin use to make new network cables for the communications closet? A.OTDR B.Cable tester C.Punch down tool D.Crimper
D
