A customer has asked a technician to upgrade the wireless router to the fastest speed possible. The technician performs a site survey and notices several older devices will not be able to connect to router that operates In the 5GHz range. Which of the following options should the technician suggest to the customer?

A technician is installing six PCs and six VoIP telephones on a small office LAN. The VoIP telephones require QoS to be configured for proper operation. The customer router does not have QoS capability. Which of the following network devices should the technician purchase and install at this office?

Which of the following protocols is used to transport outgoing mail across networks?

Which of the following characteristics allows an 802.11g WAP to have transfer speeds up to
108Mbps?

To achieve a more efficient and secure work environment, a company needs a way to control what is being accessed on the Internet using corporate resources. Which of the following devices should be used to accomplish this task? (Choose two.)