Question 1

When troubleshooting signaling issues, what can be a possible cause if the SBC does not receive a response to an INVITE message?

Options :

A : Firewall blocking

B : Incorrect codec configuration

C : DNS resolution failure

D : Network congestion

Answer: A

Question 2

What could be the possible cause if there are frequent audio drops or gaps in VoIP communication?

Options :

A : High latency

B : Misconfigured DNS settings

C : Insufficient bandwidth

D : Network jitter

Answer: D

Question 3

Which of the following is NOT a function of an SBC?

Options :

A : Network monitoring and troubleshooting

B : User authentication and access control

C : Call routing and policy enforcement

D : Encryption and decryption of media streams

Answer: A

Question 4

What is the recommended maximum threshold for jitter in a real-time audio call?

Options :

A : 100 ms

B : 10 ms

C : 20 ms

D : 50 ms

Answer: C

Question 5

Which of the following is a technique used to ensure data integrity in a High Availability (HA) setup?

Options :

A : Quality of Service (QoS) monitoring

B : Port forwarding

C : Data replication

D : Packet inspection

Answer: C

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