Cabling

A customer reports that their new Gigabit Ethernet connection is only achieving 100 Mbps speeds. The cable run is about 75 meters through a drop ceiling. You verify the switch and NIC are both Gigabit-capable. Which cable issue is most likely causing the speed limitation?

A customer wants to connect two switches in different buildings about 150 meters apart. The link must support at least 1 Gbps. Which cabling solution is most appropriate?

A technician is troubleshooting a network where one workstation intermittently loses connectivity. The cable run is 85 meters and passes through a conduit with several sharp bends. The cable tester shows intermittent shorts. Which cabling issue is most likely?

A technician is installing a new network drop in a warehouse where the cable must run near high-voltage machinery. The run is 60 meters. Which type of cable should be used to minimize interference?

A small office is installing new network drops in a drop ceiling for employee workstations. The IT manager wants to minimize future troubleshooting. Which cabling practice should be followed during installation?

A customer reports that their new Cat6a installation passes a cable certifier test but the link only negotiates at 100 Mbps. The cable run is 90 meters and uses standard T568B terminations. What is the most likely cause of the speed limitation?

A user complains that their VoIP phone intermittently loses connectivity. The phone is connected to a switch via a 50-meter run of solid-core Cat6 cable. You suspect interference from nearby fluorescent lights. Which cabling characteristic is most relevant to this issue?

A technician is troubleshooting a network drop that was working yesterday but now has no link light at the switch. The cable run is 80 meters and passes through a conduit. Which tool should be used first to isolate the problem?

A company is upgrading its network to support 10 Gbps connections between server racks. The distance between racks is 25 meters. Which cabling standard is most appropriate for this upgrade?

A user reports that their computer connected to a wall jack works fine, but when they move the computer to a different desk and plug into a different wall jack, there is no network connectivity. The switch port shows no link light. What is the most likely cause?

A user reports intermittent network connectivity in an office that recently had a new ceiling installed. The network drop runs through the ceiling and is not in a conduit. What is the most likely cause of the intermittent connection?

A technician is installing a new network drop in a warehouse where there is high electromagnetic interference (EMI) from machinery. Which cable type should be used to minimize signal degradation?

A technician is troubleshooting a network drop that was working yesterday but now has no link light. The cable run is 90 meters and uses Cat5e. The patch cables and switch ports have been tested and are fine. What is the most likely issue?

A customer reports that their new Gigabit Ethernet connection is only achieving 100 Mbps speeds. The cable run is 75 meters through a drop ceiling and uses a Cat5e cable. What is the most likely cause of the speed limitation?

A technician is asked to run a new network cable from a patch panel to a cubicle 80 meters away. The cable must support at least 1 Gbps. The technician has Cat6 cable on hand. What is the maximum distance this cable will support for 1 Gbps?

A customer wants to connect two buildings that are 200 meters apart with a high-speed network link. Which cabling solution is most appropriate?

A small office is setting up a new VoIP phone system. The IT staff must run new cabling to each desk. Which cable type is most appropriate for connecting VoIP phones to the network?

A technician is installing a new network in a school and must run cables through air handling plenums. What type of cable jacket is required for this installation?

A network administrator is troubleshooting a 1000BASE-T connection that is only running at 100 Mbps. The cable is Cat5e and the switch supports Gigabit. The link light is green but the speed is capped. What is the most likely cause?

A company is deploying 10 Gigabit Ethernet in a data center and needs cabling that supports this speed over a distance of 50 meters. Which cable type should be selected?

A small office is upgrading from 100Base-TX to 1000Base-T. The existing cabling is Cat5e, runs are under 50 meters, and terminations are T568B. After the upgrade, some workstations intermittently lose connectivity. What is the most likely issue?

A technician is installing new cabling for a security camera system that uses PoE. The cameras are located 120 meters from the switch. The technician has Cat6 cable available. What should the technician do to ensure reliable operation?

A customer reports that their new Gigabit Ethernet connection is only achieving 100 Mbps speeds. The cable run is about 75 meters through a drop ceiling. The technician checks the patch panel and wall jack terminations, which appear correct. What is the most likely cause of the speed issue?

A technician is troubleshooting a network issue where a user's computer can access local resources but cannot reach the internet. The user's cable is connected to a wall jack that leads to a patch panel in the server room. The technician tests the cable and finds it is wired as a crossover cable. What is the most likely impact?

A technician is setting up a new office with 20 workstations. The cabling is Cat6, and all runs are under 90 meters. After terminating the cables at the patch panel and wall jacks, the technician tests each run with a cable certifier. One run fails the test for near-end crosstalk (NEXT). What is the most likely cause?

A technician is installing a new server in a data center and needs to connect it to a 10GbE switch. The server has an SFP+ port, and the switch also has SFP+ ports. The technician has a selection of cables: Cat6a, Cat7, multimode fiber with LC connectors, and single-mode fiber with SC connectors. Which cable should the technician use?

A technician is troubleshooting a network drop that was working yesterday but now shows 'No Link' on the switch port. The cable run is through a conduit in the wall. The technician tests the cable with a continuity tester and finds that pins 1, 2, 3, and 6 are good, but pins 4, 5, 7, and 8 show no continuity. What is the most likely cause?

A technician is installing a new VoIP phone for a user. The user's desk already has a Cat6 wall jack, but the phone requires both network connectivity and a separate power source. The technician has a limited number of power outlets nearby. What is the simplest solution?

A user reports that their desktop computer connected to the network via a 10-meter Cat6 cable keeps losing connectivity when they move their chair. The cable runs under the desk and is occasionally stepped on. What is the most likely issue?

A technician is troubleshooting a network drop where the link light on the switch port is solid but the computer shows 'Unidentified Network'. The cable run is 80 meters and uses Cat5e. The technician tests the cable and finds that pins 1 and 2 are swapped with pins 3 and 6 at one end. What is the most likely result?