Telephone Engineering – 2 – 1

51. ISDN is an acronym for ________ .

(a) Information Services for Digital Networks
(b) Internet work System for Data Networks
(c) Integrated Services Digital Network
(d) Integrated Signals Digital Network

52. ISDN is a(n) _______ technology.

(a) wireless
(b) copper wire
(c) twisted-pair
(d) coax and fiber

53. ISDN operates with a _______ connection speed.

(a) 16 kbps
(b) 14.4 kbps
(c) 33.6 kbps
(d) 128 kbps

54. The normal user interface to an ISDN is PRI or ________ .

(a) Bit Rate Interface
(b) Basic Rate Interface
(c) Byte Rate Interface
(d) Broad Rate Interface

55. The ISDN equivalent of DTE is ________ .

(a) TE1
(b) TE2
(c) NT1
(d) TA

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