Computer Networking
What is the name of the computer based EMMS that provides a common forum where users can check in at their convenience, post messages, actively exchange ideas and participate in ongoing discussions?

None of these
E-mail
Videoconferencing
Bulletin board system (BBS)
Teleconferencing

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Computer Networking
RS-449/442-A/423-A is

a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression the resulting expression will not conform to the rules of construction and
None of these
the ratio of the number of data units in error to the total number of data units
a check bit appended to an array of binary digits to make the sum of the all the binary digits
a set of physical layer standards developed by EIA and intended to replace RS-232-

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Computer Networking
To configure the VLAN trunking protocol to communicate VLAN information between two switches, what two requirements must be met?1. Each end of the trunk link must be set to the IEEE 802.1e encapsulation.2. The VTP management domain name of both switches must be set the same.3. All ports on both the switches must be set as access ports.4. One of the two switches must be configured as a VTP server.5. A rollover cable is required to connect the two switches together.6. A router must be used to forward VTP traffic between VLANs.

1, 2 and 4
3, 5 and 6
1 and 6
2 and 4

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