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batigol
30-07-2003, 05:30 PM
Hi all,

Xin lỗi làm phiền mọi người. Dưới đây là các câu hỏi nhờ mọi người trả lời.

QUESTION NO: 102
You are working with a corporation that is using variable length subnet masking (VLSM) in their network. Which the routing protocol would be suitable for this corporation's network? (Choose three)
A. RIPv2
B. OSPF
C. RIPv1
D. EIGRP
E. IGRP
F. BGP

QUESTION NO: 99
What aspect of a network design is affected by a company with a small number of IT staff with minimal networking skills when the allowed down time is limited to midnight through 6:00 AM once a week?
A. choice of design model
B. implementation schedule
C. choice of layer 2 or layer 3 switching
D. security considerations

QUESTION NO: 100
Which statement about the steps to an implementation plan is true?
A. Each step should have a number of phases to carry out
B. Each step should list prerequisites for that step
C. the designer should be involved in each step of the implementation
D. Each step should detail roll-back guidelines in case of failure

QUESTION NO: 103
Which two modules are part of the Enterprise Campus function area of the Enterprise Corporate network model? (Choose two)
A. E-commerce module
B. Network Management module
C. Remote Access module
D. Server Farm module

QUESTION NO: 105
What are two reasons to use a prototype network instead of a pilot network when testing a network redesign? (Choose two)
A. cheaper to implement
B. doesn't impact a live network
C. more modeling tools available
D. more accurate test results
E. more flexible test environment

QUESTION NO: 106
Which two are the primary sources for documenting a customer's requirements for a network design project?
A. network application specifications
B. request for proposal (RFP)
C. diagram of desired network
D. network performance specifications
E. interview with customer

QUESTION NO: 108
********.com Electronics has in excess of 1000 small outlets around the country accommodating the needs of electronic and PC enthusiasts. On average each outlet has twenty computers and requires interconnection to the head office and to a regional office using a router and frame relay network. Which two routing protocols would be most suitable this design? (Choose two)
A. IBGP
B. RIPv2
C. IGRP
D. OSPF
E. BGP
F. EIGRP

QUESTION NO: 109
You have designed and implemented a SAFE network, but users still complain of isolated DoS attacks directed at specific hosts in the E-commerce module. You have limited connection rate at the Internet firewall, but the problem persists. What more can you do to reduce the effects of these attacks?
A. Ensure all relevant OS patches have been applied
B. Block all UDP traffic to these servers at the internet firewall
C. Block all TCP traffic to these servers at the internet firewall
D. Move the affected servers to the DMZ

QUESTION NO: 110
What is the first task that a network designer should perform when documenting the customer requirements and existing environment of a network design project?
A. access the scope of the design project
B. identify applications, both planned and installed.
C. identify the customer's business constraints
D. assess the customer's business goals

QUESTION NO: 111
A medium sized accounting firm, ********, has four offices around the country, head office in Berlin and branches in Kassel, Dortmund add Frankfurt. They want connectivity between these offices with minimal expense as they have limited budget. What topology would you recommend for this firm?
A. Partial mesh
B. Ring
C. Star hub and spoke
D. Full mesh

QUESTION NO: 112
When collecting information about a customer's existing network, which two information sources will provide the most accurate data? (choose two)
A. Existing network topology diagram
B. Customer interview
C. Traffic analysis
D. Configuration obtained from network equipment
E. Customer-supplied server list

QUESTION NO: 115
You work for a stock brokerage firm that is opening a new office in Madrid. A dozen stock traders will require constant data access to exchange all around the world. This access must be fast and without interruption. Which two feature can help you provide this level of connectivity? (Choose two)
A. CDP
B. IGRP
C. CoS
D. QoS
E. GoS

QUESTION NO: 116
Which two are modules of the edge distribution functional area of the enterprise composite network model? (Choose two)
A. Campus infrastructure
B. Internet connectivity
C. WAN
D. Edge security
E. Workgroup Switching

QUESTION NO: 117
You've designed converged network to carry voice calls no-net close as possible to the destination avoid long distance charges. Which two are reasons that Voip call could go off-net earlier than designed? (Choose
two)
A. local voice-gateway detects lack of WAN bandwidth
B. destination routing no configured on both local and remote gateways
C. local call manager server is too busy to process the call
D. the telephone user dials an access code

QUESTION NO: 118
Two locations of a company's network are connected with a satellite point-to-point link. Data communications over this link experience low response time and very low error rates. Which sentence describes the effect of flow control using windows size for the highest end-to-end throughput?
A. A large window size minimizes the number of acknowledgments
B. A small window size will reduce the number of retransmissions
C. A small window size would improve performance
D. there is not enough information to determine the effect window size

QUESTION NO: 120
Which two pieces of information are most relevant when documenting a company's business requirement? (Choose two)
A. improved customer support
B. existing network topologies
C. IP address assigned by the ISP
D. projected growth
E. frequency of board meetings

QUESTION NO: 122
You company, Test King.com, is preparing to do business with partners over the internet and dialup links, and you've been assigned to provide a means to secure these transactions. You need to ensure both the privacy and integrity of the data being transferred over untrusted networks. In addition, there needs to be a way to identity the users initiating these transactions. As part of your verification and test plan, how can you verify that privacy requirements have been satisfied?
A. observer applications transactions
B. capture and analyze packets for cyphertext
C. compare checksum on send and received packets
D. inspect logs for telephone number of dial-back customers

QUESTION NO: 123
Which three are essential sections of a network design document that ready to be presented to a customer?
A. Design requirements
B. existing network
C. data sources
D. pilot network
E. technical justifications

Best regards,

sinhvienngheo
31-07-2003, 06:19 PM
xin chào,

102. A,B,D,F: cả 4 routing protocols đều hổ trợ vlsm
99. B: do staff có skill ít và thời gian down-time là thấp nên phải chú ý yếu tố này.
100. B
103. C,D
105. D E
106. B E
108. D F
109. A
110. D
111. C
112. A C
115. C D
116. B E
117. A B
118. B
120. D E
122. A D
123. A B E

Xin cám ơn,

Andi_HUYVU
31-07-2003, 07:57 PM
xin chào,

102. A,B,D,F: cả 4 routing protocols đều hổ trợ vlsm
Xin cám ơn,

Theo tôi,
102. A,B,D. BGP hình như là exterior routing protocol. Vì trong câu hỏi có nói coporation's network nên tôi nghĩ mình chọn interior cho chắc. :D

Những câu hỏi này thuộc loại kiến thức tổng hợp, khó nuốt quá. :wink:

sinhvienngheo
31-07-2003, 09:20 PM
Huy Vũ,

Ý kiến của bạn cũng rất hay. Do đó, nếu chỉ phải chọn 3, nên chọn ba IGP. Tuy nhiên có một điều cần lưu ý là BGP v.4 cũng hỗ trợ VLSM. BGP v.3 không hỗ trợ VLSM.

Thanks Vũ.

batigol
04-08-2003, 04:15 PM
Cám ơn mọi người cùng thảo luận. Theo ý kiến mình thì:

99: B
100: D
102: ABD. BGP phù hợp với mạng kiểu global
103: BD Xem SAFE architecture
105: DE
106: AC
108: DF
109: A
110: C
111: C
112: AC
115: BD
116: BE
117: AB
118: A
120: BD
122: ???
123: ABE

Khó nhai quá :wink:

Regards,

sinhvienngheo
07-08-2003, 04:51 PM
batigol,

vậy những câu hỏi nào của bạn và mình khác nhau về đáp án? Bạn có thể liệt kê nội dung của những câu hỏi đó ở đây được không?

Chú ý là bạn phải thảo luận từng câu nhé. Đưa một cái list dài như vậy, chỉ có sinhvienngheo mới trả lời. Các mod chắc đọc không nổi đâu.

cám ơn,