Protocol Testing Interview Questions

Protocol Testing Interview Questions
1)What is MTP?
2)What is protocol testing. whether u have used any tool in telecom testing.
3)What is the need of CPG message in ISUP protocol?
4)what is the significance of SGM (segmentation) message in ISUP?
5)What is TEMS? a telecom testing tools for GSM and which is the best cdma protocol testing tools ie AGILENT or CAIT or CNT.Whether these have same function.What are the institutes providing these courses.
6) what'll happen if one isup link gone down? to brief this question...isup link is active between two nodes.if one goes down what are all the messages will be transfered to active node(bit wise,MTP wise)?

Deep-path testing for protocol testing

Deep-path testing  for protocol testing

Deep-path testing – process of exercising every path through the code, not just the main path through the code. This is done by maintaining and tracking the protocol conversation very precisely, in a controlled way.
Deep-path testing is useful for forcing a particular path through code that is very difficult to exercise but very important for correct operation.
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Inopportune Testing for PT(protocol testing)

Inopportune Testing  for PT(protocol testing)

Inopportune Testing – process to verify that the device under test is able to react properly when an unexpected protocol event occurs. The event is syntactically correct, but occurs when not expected. Inopportune testing is a specific instance of negative protocol conformance testing.
An example of inopportune testing is a BYE response to a SIP INVITE. The SIP INVITE is expecting a 100 Trying response, but not a BYE response.
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Protocol Testing

Protocol Testing

Protocol testing can be grouped in two categories: Stress & Reliability Tests and Functional Tests.

·    Stress and Reliability Tests include Performance testing
, Load Testing, Stress Testing, Line Speed Testing and Robustness or Security
Testing.

·    Functional Tests include Negative Testing, Inopportune Testing, Conformance/Compliance Testing, Syntax and Semantic Testing, Interoperability Testing and Deep-path Testing.
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