Testking cisco 642-144
Vendor: cisco
Exam Code: 642-144
Exam Name: IP Telephony Express(IPTX) (IP Communications )
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642-144 Q & A with Explanations + 642-144 Study Guide + 642-144 Preparation Labs
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QUESTION 6
What distinguishes IP telephony from standard analog telephony?
A. IP telephony uses IP addressing to provide a single dedicated path through a
circuit-switched network.
B. IP telephony uses IP addressing to enable two-way voice transmission over a
packet-switched TCP/IP network.
C. IP telephony uses TCP/IP to ensure that voice packets are given priority throughout
the network so that conversations arrive intact.
D. IP telephony uses IP addressing to establish a single dedicated path through a
packet-switched network.
Answer: B
QUESTION 7
Which Cisco router series supports Frame Relay, Asynchronous Transfer Mode (ATM),
and leased lines in a single platform, allowing service providers to offer multiple types of
services to end users without having to maintain multiple edge devices?
A. 3600 Series
B. 7600 Series
C. 10000 Series
D. 15000 Series
Answer: C
QUESTION 8
Which benefit does storage networking provide?
A. access to backup data
B. rapid access to rich media used in online training
C. firewall protection for storage-area networks (SANs)
D. network redundancy to ensure file access in branch offices
Answer: A
QUESTION 9
A company with 100 employees predicts that its employee number will triple in the next
six months. It is currently using hubs to connect employee computers. Which solution
should an account manager offer that would best meet upcoming company needs?
A. optical network
B. storage network
C. switched network
D. Internet protocol (IP) telephony
Answer: C
QUESTION 10
Which two scenarios are opportunities for selling a Cisco VPN solution? (Choose two.)
A. an online music retailer with multiple downloading locations that wants to centralize
access to large media files
B. a growing publishing firm that needs a secure way for remote content editors to
connect through the Internet to the company extranet
C. a large ISP that has been targeted by a denial of service attack that disables Internet
access for several thousand customers
D. a mortgage-lending company that opens several branch offices that require secure
access to underwriting information on the corporate extranet
Answer: B,D
Testking 642-144
Questions and Answers : 115 Q&As Updated: October 29th , 2008 Price: $99.99
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