Which service uses DNS for registering domain controllers in DNS domain namespace?

Which information structure does the OSI model follow?

Which of the following security tool should be used to secure communication between an Exchange 2003 front-end server and a back-end server?

Which of the following protocols are supported by IP Multicasting?

Users in Windows 2003 server environment face problem in receiving mails from outside, but do not encounter a problem in sending. Which command based utility can be used to verify whether it is a DNS problem or not?

Which of the following are types of fiber-optic media?

Which works well for long – distance communications and roaming?

The HSPA term is used to describe certain 3G cellular network protocols?

In which Fiber reaches the boundary of the living space, such as a box on the outside wall of a home?

How many MAC sub layers are defined by IEEE 802.11?

The name “WiMAX “was created by WiMAX Forum which was formed in?