IT Questions Bank

IT Questions Bank 1

What is one main characteristic of the data link layer?
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A network administrator is required to upgrade wireless access to end users in a building. To provide data rates up to 1.3 Gb/s and still be backward compatible with older devices, which wireless standard should be implemented?
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Which statement is correct about multimode fiber?
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How is the magnetic field cancellation effect enhanced in UTP cables?
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Which statement describes signaling at the physical layer?
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What are two examples of hybrid topologies? (Choose two.)
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Fill in the blank. A physical topology that is a variation or combination of a point-to-point, hub and spoke, or mesh topology is commonly known as a hybrid topology.
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Fill in the blank. What acronym is used to reference the data link sublayer that identifies the network layer protocol encapsulated in the frame? LLC
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Fill in the blank. The term bandwidth indicates the capacity of a medium to carry data and it is typically measured in kilobits per second (kb/s) or megabits per second (Mb/s).
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What is the function of the CRC value that is found in the FCS field of a frame?
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What is the definition of bandwidth?
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What is a role of the Logical Link Control sublayer?
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As data travels on the media in a stream of 1s and 0s how does a receiving node identify the beginning and end of a frame?
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What is contained in the trailer of a data-link frame?
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Which method of data transfer allows information to be sent and received at the same time?
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