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killtestはCommunications Telephony Design Exam 642-414問題集
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642-414
1.This area is intentionally left blank From the following list of customer attributes, choose thecorrect IP telephony call processing model: -A large campus that spans multiple PSAP areas. -A
single group of buildings each with its own computer room.
A.single-site call processing
B.centralized call processing
C.hybrid call processing
D.distributed call processing
Correct:A
2.From the following list, select the information that is relevant to choosing an IP telephony
centralized call processing model.
A.a single 6-story building with an IDF on each floor and an MDF in the computer room on the second
floor
B.three small regional sales offices located in the three Western time zones
C.Ccentralized order processing, shipping, and billing for all customer products
D.connectivity to a single service provider that hosts the company web site and provides for Internet
access
E.multiple PRIs to the PSTN
F.a campus of six buildings connected via an ATM backbone
Correct:B
3.Form the following list, select the information that is relevant to choosing an IP telephony
single-site call processing model. (Choose two.)
A.VPN connectivity to contractors and suppliers
B.dual connectivity to service providers for Internet access and multiple PRLs to the PSTN
C.no remote offices or campuses
D.all external calls use the PSTN
E.corporate HQ with multiple regional sales offices
F.a single 6-story building with an IDF on each floor and an MDF in the computer room on the second
floor
Correct:C F
4.AMFAB Environmental Consulting (AMFAB), an environmental consulting company, based near
Atlanta, Georgia, uses a PBX for its campus phone system. The PBX cannot support all the new
features that AMFAB requires, so the company has decided to change its system from traditional
TDM to IP telephony. The campus currently has approximately 922 users in three four-story office
buildings, a single story R&D facility, and a scale building. It will be your job to determine what
information is needed for the proper design of the company's converged network. Which of these
pieces of information must be addressed in the design of the IP telephony system for AMFAB?
(Choose three)
A.The network is running at 45% of capacity at peak times.
B.They were given a cost estimate of $83,000.00 to upgrade their existing PBX to support IP.
C.They have entered into negotiations to purchase a small, 45 person consulting engineering firm that
specializes in designing and installing lined lagoons and ponds.
D.The monthly cost of long distance is $14,000.00
E.Users complain that they receive a fast busy when trying to dial out to the PSTN during the middle of
the day.
Correct:A C E
5.You are in a meeting with the AMFAB telephony services manager and the data network
manager. What information do you need to obtain to assist you in the design of the IP telephony
solution? (Choose four.)
A.bandwidth available to connect to the Internet
B.the number of phones that have DID
C.the number of servers supporting the R&D facility
D.what type of dialing plan is deployed at AMFAB
E.which group of users contributes the most traffic to the network
F.which group of users spends the most time on their phones
G.how the PBX is cabled from each MDF to each IDF and to each desk location
H.the measures AMFAB has implemented to secure the network
Correct:B D F G
6.You are in a meeting with the AMFAB telephony services manager and the data network
manager. What four pieces of information will be important for you to capture from this meeting?
(Choose four.)
A.the manufacturer, type and number of devices in the network
B.the IP addressing scheme
C.the type of network design currently in place
D.the current integration of voice and data in the AMFAB network
E.the capacity of the link to the Internet
F.the type and size of the power circuits in each MDF and IDF
Correct:A B C F
7.You are doing a physical site survey of the AMFAB campus. You noticed on the site map that the
facility is divided by County Line Road. This is actually the boundary between Cobb and Fulton
counties. What issue needs to be addressed for the IP telephony design?
A.if calls from the AMFAB buildings in Cobb County will incur a toll change when calling the AMFAB
buildings in Fulton County.
B.if the tax rate for telephony is different between Cobb County and Fulton County.
C.if separate call data information needs to be kept for both counties
D.if a PSTN connection in bldg C can route emergency calls to the correct PSAP for the buildings in Cobb
County
E.if the phones in each county require overlapping extension numbers
Correct:D
8.You are doing a physical site survey of the AMFAB campus. What four issues are related to the
physical placement of network hardware?(chose four.)
A.physical security
B.adequate rack space
C.a dust-free environment
D.access to building distribution cabling
E.sufficient HVAC
F.adequate lighting
Correct:A B D E