Router#show isdn status Global ISDN Switchtype=basic-ni ISDN BRI0 interface dsl 0, interface ISDN Switchtype=basic-ni Layer 1 Status: ACTIVE Layer 2 Status: TEI=73, Ces=2, SAPI=0, State=TEI_ASSIGNED TEI=74, Ces=1, SAPI=0, State=TEI_ASSIGNED Layer 3 Status : 0 Active Layer 3 Call(s)
A. Layer 1, 2, and 3 status is active.
B. TEI values assigned are not a valid numbers.
C. Layers 1 and 2 status is active but Layer 3 status indicates lost connectivity.
D. Layer 1 status is active but Layer 2 status indicates lost connectivity.
Answer:D
Router#show isdn status Global ISDN Switchtype=basic-ni ISDN BRI0 interface dsl 0, interface ISDN Switchtype=basic-ni Layer 1 Status: ACTIVE Layer 2 Status: TEI=73, Ces=2, SAPI=0, State=TEI_ASSIGNED TEI=74, Ces=1, SAPI=0, State=TEI_ASSIGNED Layer 3 Status : 0 Active Layer 3 Call(s)
A. Layer 1, 2, and 3 status is active. B. TEI values assigned are not a valid numbers. C. Layers 1 and 2 status is active but Layer 3 status indicates lost connectivity. D. Layer 1 status is active but Layer 2 status indicates lost connectivity.