Source mc mcse Certification Resources     Application Layer vs. Network Layer – An application layer firewall works at the application layer of a protocol stack.

Source mc mcse Certification Resources   Crosstalk Symptoms: Slow network performance and/or an excess of dropped or unintelligible packets. In telephony applications, users hear pieces of voice or conversations from a separate line.

Source mc mcse Certification Resources   Gather Information on the Problem In a contact center network, problems are typically discovered and reported by one of the following types of users:

Source mc mcse Certification Resources   Bandwidth – is the average number of bits that can be transmitted from the source to a destination over the network in one second.

Source mc mcse Certification Resources   Quality of Service – (QoS) is a set of parameters that controls the level of quality provided to different types of network traffic.

The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to their underlying internal structure and technology.

Multilayer Switch – A multilayer switch (MLS) is a computer networking device that switches on OSI layer 2 like an ordinary network switch and provides extra functions on higher OSI layers.

  Hub – A physical layer network device used to connect multiple Ethernet devices together.

Vertical Cross Connect – is a location within a building where cables originate and / or are terminated, reconnected using jumpers or pass throughs or are connected to patch panels or other similar devices where the locations are from upper or lower floors in the building.

  [bs_icon name=”glyphicon glyphicon-chevron-right”] Frame Relay – Frame relay is a secure, private network that utilizes a logical path or “virtual circuit” to allocate bandwidth for high performance transmissions.

568A and 568B – The number 568 refers to the order in which the individual wires inside a CAT 5 cable are terminated.

Cable Types :