A technician is troubleshooting a client's report about poor wireless performance. Using a client monitor, the technician notes the following information:

Which of the following is MOST likely the cause of the issue?

A. Channel overlap
B. Poor signal
C. Incorrect power settings
D. Wrong antenna type

Which of the following types of datacenter architectures will MOST likely be used in a large SDN and can be
extended beyond the datacenter?


A. iSCSI
B. FCoE
C. Three-tiered network
D. Spine and leaf
E. Top-of-rack switching

A network technician is troubleshooting an application issue. The technician is able to recreate the issue in a
virtual environment. According to the troubleshooting methodology, which of the following actions will the
technician most likely perform NEXT?


A. Gather information from the initial report.
B. Escalate the issue to a supervisor.
C. Implement a solution to resolve the issue.
D. Establish a theory of probable cause.

A small office is running WiFi 4 APs, and neighboring offices do not want to increase the throughput to
associated devices. Which of the following is the MOST cost-efficient way for the office to increase network
performance?


A. Add another AP.
B. Disable the 2.4GHz radios.
C. Enable channel bonding.
D. Upgrade to WiFi 5.

Which of the following OSI model layers contains IP headers?


A. Presentation
B. Application
C. Data link
D. Network
E. Transport

A technician is assisting a user who cannot access network resources when the workstation is connected to a
VoIP phone. The technician identifies the phone as faulty and replaces it. According to troubleshooting
methodology, which of the following should the technician do NEXT?


A. Implement the solution.
B. Test the theory.
C. Duplicate the issue.
D. Document the findings.
E. Verify functionality.

A technician is documenting an application that is installed on a server and needs to verify all existing web and
database connections to the server. Which of the following tools should the technician use to accomplish this
task?


A. tracert
B. ipconfig
C. netstat
D. nslookup

A network switch was installed to provide connectivity to cameras monitoring wildlife in a remote location. The
organization is concerned that intruders could potentially leverage unattended equipment in the remote location
to connect rogue devices and gain access to the organization's resources. Which of the following techniques
would BEST address the concern?


A. Configure port security using MAC filtering.
B. Manually register the cameras on the switch address table.
C. Activate PoE+ on the active switchports.
D. Disable Neighbor Discovery Protocol on the switch.

Which of the following BEST describes a North-South traffic flow?


A. A public Internet user accessing a published web server
B. A database server communicating with another clustered database server
C. A Layer 3 switch advertising routes to a router
D. A management application connecting to managed devices

Which of the following is the physical security mechanism that would MOST likely be used to enter a secure
site?


A. A landing page
B. An access control vestibule
C. A smart locker
D. A firewall