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最新的 CCNP 642-437 免費考試真題:

1. Which four commands are used to configure VoIP dial peers? (Choose four.)

A) session target
B) port number
C) prefix
D) destination-pattern
E) dial-peer voice
F) description
G) forward-digits
H) codec

2. Which statement about a dial peer is true?

A) A dial peer is similar to static routes; it defines where calls originate and terminate and which path the calls take through the network.
B) A dial peer manipulates digits in a dial string before it passes the dial string to the telephone device.
C) A dial peer describes the number and pattern of digits that a user dials to reach a particular phone number.
D) A dial peer is used to control the number of digits that are stripped before the dialed string is passed to the telephony interface.

3. Which traditional telephony protocol was used as a basis for the H.323 suite of protocols?

A) Q.921
B) SS7
C) Q.931
D) SCCP

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

A) 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.
B) LLQ uses CBWFQ to prioritize voice traffic and by dequeuing the voice packets so they can be handled first.
C) 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.
D) LLQ adds WRED to CBWFQ. This allows delay-sensitive data such as voice to be dequeued and sent first.

5. Which statement is true regarding SCCP?

A) SCCP supports the widest range of features on Cisco IP phones.
B) Only the IP address is required for the gateway to communicate with Cisco Unified Communications Manager.
C) The protocol is proprietary to Cisco.
D) SCCP requires a registrar server.
E) A PRI backhaul connection forwards PRI Layer 3 (Q.931) signaling information via a TCP connection from the gateway to the call agent.

問題與答案：