Day 2 Net+ Review

A network technician is troubleshooting a loss of connectivity for several users. After interviewing users, the technician checks the switch logs and performs a physical inspection of the cabling in the server room. According to the CompTIA Network+ troubleshooting methodology, which step is the technician currently performing?

• 1. Establishing a plan of action

• 1. Identifying the problem

• 1. Testing a theory to determine the cause

• 1. Verifying full system functionality

After implementing a fix for a network outage, what is the NEXT step a technician should take according to the standard troubleshooting methodology?

• 1. Document their findings, actions, and outcomes.

• 1. Immediately move on to the next trouble ticket.

• 1. Verify the solution and confirm full system functionality with the customer.

• 1. Establish a new theory of probable cause.

A technician is unable to resolve a complex network problem and suspects it may be related to a faulty hardware component still under warranty. What is the MOST appropriate action for the technician to take next?

• Replace the component themselves to save time.

• Ignore the warranty and continue troubleshooting.

• 1. Escalate the issue to a more senior team member or the vendor.

• 1. Advise the customer to accept the problem as a workaround.

A network engineer is choosing a cable for a new building's network infrastructure. The cable will be run through environmental air handling spaces, like drop-down ceilings used for HVAC return air. Which cable type MUST the engineer choose to meet fire safety codes?

• 1. Shielded Twisted Pair (STP)

• 1. Riser-rated cable

• 1. Plenum-rated cable

• 1. Coaxial cable

Which of the following Ethernet standards operates at 10 Gbps and is designed to be used with Single-mode Fiber (SMF) over long distances?

• 1. 10GBase-T

• 1. 10GBase-SR

• 1. 10GBase-LR

• 1. 40GBase-T

A technician needs to create a straight-through Ethernet cable to connect a computer to a wall jack. Which wiring standard(s) should be used on both ends of the cable?

• T568A on one end and T568B on the other.

• 1. T568A on both ends.

• 1. Either T568A on both ends or T568B on both ends.

• 1. Any combination of standards, as the pins will auto-negotiate.

A network is experiencing a high number of collisions. Which of the following devices, when used to replace an existing hub, would segment the network into separate collision domains and eliminate this problem?

• 1. A switch

• 1. A repeater

• 1. A media converter

• 1. An access point

A technician is installing a new fiber connection and needs to terminate a multimode fiber cable in a patch panel. Which of the following connectors are most likely to be used due to their small form factor and popularity in high-density environments?

• 1. ST connectors

• 1. BNC connectors

• 1. LC connectors

• 1. RJ11 connectors

Which media access control method is defined by the IEEE 802.3 standard for Ethernet to manage data transmission and handle collisions on a shared network medium?

• 1. CSMA/CA

• 1. Token passing

• 1. CSMA/CD

• 1. Polling

Which layer of the OSI model is responsible for establishing, maintaining, and terminating

connections between applications?

• Application layer

• Transport layer

• Network layer

• Session layer