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Braindumps
of 920-253
Nortel VPN Router (Contivity) Rls. 6.0
Exam Questions,
Answers, Braindumps (920-253)
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QUESTION 1:
Abc .com with a 1500-tunnel environment wants a high-availability
solution in case a processor on the Contivity VPN
router fails. Which solution addresses this need?
A. two single-processor Contivity 2700s
B. two single-processor Contivity 1750s
C. a dual-processor Contivity 2700
D. a dual-processor Contivity 1750
Answer: A
QUESTION 2:
Abc .com has two Contivity 2700s at corporate headquarters.
The routers have been used for remote user connections.
They want to allow their partners to connect by Branch
Office tunnel, and they want some fail-over when one
of the 2700s is down. What do you suggest for the
remote offices for redundancy?
A. 600 at each end, running OSPF, and VRRP
B. 600 at the remote offices configured as Control
Tunnels
C. 600 at the SOHO with route policies configured
D. 600 at the SOHO with static branch failover configured
Answer: D
QUESTION 3:
Abc .com's mobile sales force is equipped with handheld
devices. Assuming that the IPSec client the company
uses supports IKE encryption and Diffie-Hellman group,
what would be the best choice to optimize performance?
A. Triple-DES with Group 7 (ECC 163-bit field)
B. Triple-DES with Group 2 (1024-bit prime)
C. 56-bit DES with Group 1 (768-bit prime)
D. AES-128 with Group 5 (1536-bit prime)
Answer: A
QUESTION 4:
One reason why RIP is not deployed in large-scale
networks is because the maximum number of hops (or
routers) from the origin subnet to the target subnet
is limited to ________.
A. 256
B. 15
C. 16
D. 255
Answer: B
QUESTION 5:
Abc .com wants to use a single device to allow both
tunneled and untunneled traffic for a remote office.
What can be implemented on the Contivity VPN router
to allow both types of packets to pass between public
and private interfaces? (Choose two.)
A. Contivity VPN router Tunnel Filters
B. Branch Office Tunnel
C. Contivity VPN router Stateful Firewall
D. Split-tunneling
E. Contivity VPN router Interface Filters
Answer: C,E
QUESTION 6:
Abc .com has a large mobile sales force. The sales
force has been dialing into the company's intranet
remotely using modems and the company's toll-free
telephone numbers. They continue to use this solution
because of redundancy and high-availability requirements.
What should you recommend to the customer?
A. Use multiple VPN Routers.
B. Keep the current solution and add VPN Routers for
backup.
C. Use multiple VPN Routers with VRRP to backup interfaces.
D. Keep the current solution.
Answer: C
QUESTION 7:
Abc .com has highly sensitive data that must be shared
with two branch offices in New York and Miami. The
company is very concerned about protecting this data.
Which two encryption algorithms will provide the highest
level of security? (Choose two.)
A. RSA
B. 3DES
C. RCA
D. ECC
E. AES
Answer: B,E
920-253
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