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?

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

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?

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?

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

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

A T1 line is a fiber optic line that can carry roughly 60 times more data than a normal residential
modem. A full T1 line runs at which maximum speed?