An attacker quickly gains administrative access to a network device. Which of the following MOST likely allowed the attacker to guess the password?

A network technician is troubleshooting wireless network issues in a crowded office complex and suspects there is interference from nearby wireless networks. Which of the following should the technician perform to discover possible interference?

There is suspected virus activity on the network. Which of the following would Lisa, a technician, use to study network traffic?

A company has a DNS record for the following address: products companyXYZ. com. The company would like to add another record, sales. companyXYZ. com, which continually points to the same IP address as products companyXYZ. com. Which of the following DNS record would BEST accomplish this?

A technician has installed an older IP camera as a temporary replacement for a recently failed newer one. The technician notices that when the camera's video stream is off, the ping roundtrip time between the camera and the network DVR is consistently less than 1ms without dropped packets. When the camera video stream is turned on, the ping roundtrip time increases dramatically, and network communication is slow and inconsistent. Which of the following is MOST likely the issue in this scenario?