A network technician wants to identify which DNS servers a computer is configured to use. Which of the following commands should the technician use?


A. nbtstat
B. arp
C. nslookup
D. netstat

Which of the following is a valid alternative to maintain a deployed proxy technology while saving physical space in the data center by moving the network service to the virtualization infrastructure?


A. NFV
B. SDWAN
C. Networking as code
D. VIP

A network technician is investigating a trouble ticket for a user who does not have network connectivity. All patch cables between the wall jacks and computers in the building were upgraded over the weekend from Cat 5 to Cat 6. The newly installed cable is crimped with a TIA/EIA 568A on one end and a TIA/EIA 568B on the other end. Which of the following should the technician do to MOST likely fix the issue?


A. Ensure the switchport has PoE enabled.
B. Crimp the cable as a straight-through cable.
C. Ensure the switchport has STP enabled,
D. Crimp the cable as a rollover cable.

Which of the following would be used to indicate when unauthorized access to physical internal hardware has occurred?


A. Motion detectors
B. Radio frequency identification tags
C. Tamper evident seal
D. Locking racks

A network technician is troubleshooting a connection to a local server and has verified that the RDP service is running on the server. After running a command, the technician receives the following output:

Which of the following MOST likely describes the issue?


A. A host-based firewall on the server is blocking the connection.
B. Too many collisions are occurring on the network segment.
C. A DoS attack is occurring locally.
D. A routing loop is in the network.

A Chief Executive Officer (CEO) of a company purchases a new phone that will be used while traveling to different countries. The CEO needs to be able to place outgoing calls and receive incoming calls on the phone using a SIM card. Which of the following cellular technologies does the CEO's phone need?


A. WDMA
B. CDMA
C. GSM
D. SLA

A network administrator is creating a subnet for a remote office that has 53 network devices. An additional requirement is to use the most efficient subnet. Which of the following CIDR notations indicates the appropriate number of IP addresses with the LEAST amount of unused addresses?


A. /24
B. /26
C. /28
D. /32

A network administrator responds to a support ticket that was submitted by a customer who is having issues connecting to a website inside of the company network. The administrator verifies that the customer could not connect to a website using a URL. Which of the following troubleshooting steps would be BEST for the administrator to take?


A. Check for certificate issues.
B. Contact the ISP.
C. Attempt to connect to the site via IP address.
D. Check the NTP configuration.

A technician is setting up DNS records on local servers for the company's cloud DNS to enable access by hostname. Which of the following records should be used?


A. A
B. MX
C. CNAME
D. NS

Which of the following describes a network in which users and devices need to mutually authenticate before any network resource can be accessed?


A. Least privilege
B. Local authentication
C. Zero trust
D. Need to know