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1. Refer to the exhibit.
Cisco 642-437 Exam
When an inbound PSTN call from 4087071222 arrives at the ISDN port that is shown in the exhibit, which dial peer will be matched for the inbound leg?
A) Dial-peer 123, because incoming called-number takes precedence over answer-address.
B) The matching inbound dial peer will be selected at random.
C) Dial-peer 2123, because answer-address takes precedence over incoming called-number.
D) Although dial-peer 123 takes precedence, there is no port that is configured under dial-peer 123, therefore dial-peer 2123 will be selected.
E) Although dial-peer 123 takes precedence, there is no direct-inward-dial that is configured, therefore 2123 will be selected.
2. The IP precedence marking uses which bits of the ToS IP header field?
A) the two left-most bits
B) the four left-most bits
C) the seven left-most bits
D) the three left-most bits
3. What is the default encryption algorithm that is used by SRTP?
A) RC4
B) AES
C) DES
D) Blowfish
4. Which command is used to enable the AutoQoS feature on an incoming interface while also trusting existing quality of service markings?
A) router(config-if)#auto qos voip trust
B) router(config)#auto qos voip interface interface
C) router(config)#auto qos voip trust interface interface
D) router(config-if)#auto qos voip
5. When deploying an 802.3af switch what is the default number of Watts consumed by each port if 802.3af compliant devices are attached to the switch?
A) 15.4 Watts
B) 22.3 Watts
C) 7 Watts
D) 6.3 Watts
E) 4 Watts
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: A |
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