pulse Click on Answer tab for Answers.

X.25 Protocol – 1 – 1

1. X.25 is an example of ________ network.

(a) ring based
(b) frame relay
(c) circuit switched
(d) packet switched

ANSWER

EXPLANATION

2. How many OSI layers are covered in the X.25 standard ?

(a) 1
(b) 2
(c) 3
(d) 4

ANSWER

EXPLANATION

3.  The CCITT Recommendation X.25 specifies ______ three layers of communications.

(a) Session, transport and network.
(b) Physical, data link and network.
(c) Data link, network and transport.
(d) Application, presentation and session.

ANSWER

EXPLANATION

4. The type of packet format supported by X.25 is/are :

(a) Data packet
(b) Control packet
(c) Both a & b
(d) None of these

ANSWER

EXPLANATION

5. Which of the following network access standard is used for connecting stations to a packet- switched network ?

(a) X.3
(b) X.21
(c) X.25
(d) X.75

ANSWER

EXPLANATION

1 2 3
Be a Part of The New & Next

MCQs fb  MCQs G+

Share the Knowledge

Shares
Copy Protected by Chetan's WP-Copyprotect.