思科认证考试
Why would a network administrator configure port security on a switch?（）A、to prevent unauthorized Telnet access to a switch portB、to limit the number of Layer 2 broadcasts on a particular switch portC、to prevent unauthorized hosts from accessing the LAND、
题目
Why would a network administrator configure port security on a switch?（）
- A、to prevent unauthorized Telnet access to a switch port
- B、to limit the number of Layer 2 broadcasts on a particular switch port
- C、to prevent unauthorized hosts from accessing the LAN
- D、to protect the IP and MAC address of the switch and associated ports
- E、to block unauthorized access to the switch management interfaces over common TCP ports
相似问题和答案
第1题：
A、I dislike coffee.
B、It tastes terrible.
C、No, thanks. I’ve had at home.
D、Why not?
第2题：
(b) Distinguish between strategic and operational risks, and explain why the secrecy option would be a source
of strategic risk. (10 marks)
(b) Strategic and operational risks
Strategic risks
These arise from the overall strategic positioning of the company in its environment. Some strategic positions give rise to
greater risk exposures than others. Because strategic issues typically affect the whole of an organisation and not just one or
more of its parts, strategic risks can potentially concern very high stakes – they can have very high hazards and high returns.
Because of this, they are managed at board level in an organisation and form. a key part of strategic management.
Operational risks
Operational risks refer to potential losses arising from the normal business operations. Accordingly, they affect the day-to-day
running of operations and business systems in contrast to strategic risks that arise from the organisation’s strategic positioning.
Operational risks are managed at risk management level (not necessarily board level) and can be managed and mitigated by
internal control systems.
The secrecy option would be a strategic risk for the following reasons.
It would radically change the environment that SHC is in by reducing competition. This would radically change SHC’s strategic
fit with its competitive environment. In particular, it would change its ‘five forces’ positioning which would change its risk
profile.
It would involve the largest investment programme in the company’s history with new debt substantially changing the
company’s financial structure and making it more vulnerable to short term liquidity problems and monetary pressure (interest
rates).
It would change the way that stakeholders view SHC, for better or worse. It is a ‘crisis issue’, certain to polarise opinion either
way.
It will change the economics of the industry thereby radically affecting future cost, revenue and profit forecasts.
There may be retaliatory behaviour by SHC’s close competitor on 25% of the market.
[Tutorial note: similar reasons if relevant and well argued will attract marks]
第3题：
The major reason why a project manager would use written instead of oral communication is:
A documentation
B feedback
C cost
D barrier elimination
E All of the above.
第4题：
Why did the dollar rally at the beginning of the year?
A．It was the beginning of the year.
B．Traders' sentiment was changing greatly.
C．People thought that the US economy would recover and German interest rate would ease soon.
D．The present US-German interest rate differential would be unlikely to narrow.
解析：文章第二段提到dollar rallied due to...German interest rate would ease soon。美元的回升是由于人们的乐观情绪。
第5题：
Why would a clone not be identical to the "master copy"?
A、They are totally different persons.
B、The clone's cells, for example, would have energy-processing machinery that came from the egg, not from the person who was cloned.
C、They have different genetic source.
D、The clone’s cells can be productive.
第6题：
13 The major reason why a project manager would use written instead of oral communication is: A. documentation
B. feedback
C. cost
D. barrier elimination
E. All of the above
第7题：
Why can many people see “silver linings” to the economic showdown?
A They would benefit in certain ways.
B The stock market shows signs of recovery.
C Such a slowdown usually precedes a boom.
D The purchasing power would be enhanced.
第8题：
Why would the Hatches routinely go from store to store?
A. They decided to open a store
B. They wanted to save money
C. They couldn’t afford expensive things
D. They wanted to buy gifts for local kids
第9题：
—Would you mind closing the window? It is windy outside.\n—________________
A.Not at all.
B.Sure, go ahead.
C.Why not?
D.Yes, I would.
第10题：
“Why isn’t John in class?”“He be sick, or he’d have been here already.”()
A. should
B. may
C. must
D. would