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In frame relay networks, extended address is used _______

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In frame relay networks, extended address is used _______

(a) to increase the range of data link connection identifiers

(b) for error detection

(c) for encryption

(d) for error recovery

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This question is from ATM & Frame Relay in section Frame Relay of Computer Network

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The correct option is (a) to increase the range of data link connection identifiers

Explanation: Extended address is indicated by the last bit of every address byte in the DLCI. It specifies whether the byte is the last in the addressing field. It is used to increase the range of data link connection identifiers.

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