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Cisco 642-437 Exam Syllabus Topics:

Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0) Sample Questions:

1. How does LLQ ensure that voice traffic is always expedited?

A) LLQ adds WRED to CBWFQ. This allows delay-sensitive data such as voice to be dequeued and sent first.
B) The strict priority queue has a higher weight than the queues in CBWFQ. This weight allows the delay-sensitive data such as voice to be dequeued and sent first.
C) LLQ uses CBWFQ to prioritize voice traffic and by dequeuing the voice packets so they can be handled first.
D) The LLQ strict priority queue allows delay-sensitive data such as voice to be dequeued and sent first (before packets in other queues are dequeued), giving delay-sensitive data preferential treatment over other traffic.

2. What is the prerequisite for configuring Cisco AutoQoS VoIP on a Cisco catalyst switch?

A) Cisco Discovery Protocol version 2.
B) Configure the mls qos global configuration command.
C) Configure Cisco Express Forwarding.
D) Configure trust boundaries.
E) Configure correct bandwidth on all interfaces.

3. Which command should you use to configure a dial peer to support T.38 fax relay and to use Cisco fax relay if T.38 negotiation is unsuccessful?

A) fax relay t38 backup ciscorelay
B) fax protocol t38 fallback cisco
C) fax t38 fallback cisco
D) fax relay t38 cisco

4. Which four are critical functions that are performed by the Cisco Unified Border Element? (Choose four.)

A) choice of deployment support
B) handling of DoS attacks
C) critical log captures
D) QoS accounting and billing
E) monitoring and troubleshooting deployments
F) investment protection
G) flexibility on a single platform
H) migration control

5. Which SCCP directory number type can have a line appearance that can be used to answer a call at more than one endpoint, but can only answer one call at a time?

A) dual-line
B) shared-line, exclusive
C) single-line
D) shared-line, nonexclusive
E) octo-line
F) two directory numbers with one telephone number

Solutions: