Signaling CAS Part-2

In CCS7 signaling the Message Transfer Part (MTP) transport messages in the form ........ of varying length.

• Packets

• Segments

• Frames

• Signaling Units (SU)

In CCS7 signaling, the Signaling Unit (SU) formed by the functions of ..........

• Level 1

• Level 2

• Level 3

• Level 4

There are ....... types of Signaling Units (SU)

• 2

• 3

• 4

• 5

Using ....... the Message Transfer Part (MTP) transfers message from User Part (UP, Level 4) and messages from Signaling Network Managent (Level 3).

• Message Signaling Unit (MSU)

• Link State Signaling Unit (LSSU)

• Fill In Signaling Unit (FISU)

• All

In CCS7 signaling, the ......... contain information for the operation of the signaling link (Eg: Alignment)

• MSU

• LSSU

• FISU

• All

In CCS7 signaling, the ........ are used to maintain the acknowledgement cycle when no user messages are to be sent in one of the two directions of the signaling link.

• MSUs

• LSSUs

• FISUs

• All

The length of Backward Sequence Number (BSN) is ....... bits

• 4

• 7

• 8

• 1

In CCS7 signaling, the ...... is used as an acknowledgment carrier within the context of error control.

• Flag

• Backward Sequence Number

• Backward Indicator Bit

• Forward Indicator Bit

In CCS7 signaling, the length of Backward Indication Bit (BIB) is ....

• 1

• 2

• 7

• 8

In CCS7 signaling, the length of "Length Indicator" (LI) is ...... bits.

• 7

• 4

• 6

• 8