Which IEEE (Institute of Electrical and Electronics Engineers) 802.x standard describes the physical layer for networks that use a ring topology?

Which tool can help you to resolve the problem of time-out of database server inquiries?

Open Ports is a powerful port-to-process mapping utility. Given that services are operating on their default ports. A scanner identifies the opens ports on a network device. Which port will offer securecommunications?

Which of the following allows a Windows workstation to access file and printer resources on a Linux server?

Open Ports is a powerful port-to-process mapping utility.Given that services are operating on their default ports. A scanner identifies the opens ports on a network device. Which port will offer securecommunications?

Simple Mail Transfer Protocol (SMTP) is an Internet standard for electronic mail (e-mail) transmission across Internet Protocol (IP) networks. A user has set up filtering on an Internet router. The local SMTP server has stopped sending or receiving messages from the Internet.
Why?

Which command can indicate the destination MAC addresses?

Which item below is not the benefit that static routing can bring to us?

Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks. A VoIP phone having a built-in hub is plugged into a single network using both the hub port and the phone port. Because of the increasing traffic, the network becomes very slow. What can prevent this problem happening?

Assume that you are a network administrator. If you want to control network devices such as switches or routers, what protocol will be helpful to you?