Whichis abenefitofimplementing RFC2827?()

题目
Whichis abenefitofimplementing RFC2827?()

A.PreventsDoSfromlegimate,non-hostileendsystems

B.Preventsdisruptionof"specialservices",suchasMobileIP

C.DefeatsDoSAttackswhichemployIPSourceAddressSpoofing

D.Restrictsdirectedbroadcastsattheingressrouter

E.AllowsDHCPorBOOTPpacketstoreachtherelayagentsasappropriate

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相似问题和答案

第1题:

问答题
Most people would describe water like a colorless liquid. They         (1) _______would know that in very cold conditions it becomes a solid calledice and that when heating on a fire it becomes a vapor called steam.       (2) _______However, water, they would say, is a liquid. We have learned thatwater consists of molecules composed with two atoms of hydrogen          (3) _______and one atom of oxygen, which we describe by the formula H2O.This is equally true of the solid called ice and the gas called steam.Chemically there is no difference between the gas, the liquid, andthe solid, all of which is made up of molecules with the formula H2O.       (4) _______This is true of other chemical substances; most of them can exist asgases or as liquids or as solids. We may normally think of iron as asolid, but if we will heat it in a furnace, it will melt and become a       (5) _______liquid, and at very high temperatures it will become a gas. Nothingvery permanent occurs when a gas changes into a liquid or a solid.Everyone knows that ice, which has been made by freezing water,can be melted again by warmed and that steam can be condensed           (6) _______on a cold surface to become liquid water. In fact, it is only becausewater is so a familiar substance that different names are used for        (7) _______the solid, liquid and gas. Most substances are only familiar with         (8) _______us in one state, because the temperatures requiring to turn them         (9) _______into gases are very high, or the temperatures necessary to turn theminto solids are so low. Water is an exception in this respect, whichis another reason why its three states have given three different        (10) _______names.

正确答案:
1.like改为as describe sth. as sth.“将……描述成……”,是固定说法。
2.heating改为heated 此处为时间状语从句,从句和主句主语一致,从句主语和be的变化形式可以省略。
3.with改为of
be composed of是固定搭配,意为“包括,由……组成”。
4.is改为are
which指代the gas, the liquid, and the solid,表示复数概念,应该用are。
5.去掉第一个will 在时间条件状语从句和条件状语从句中用现在时表示将来。
6.by改为when
when warmed等于when it is warmed,it is可以省略。
7.so改为such
so+ adj.+ a(n)+n.和such a(n)+adj.+ n.是固定说法,没有so+ a(n)+ adj. +n.这种说法。
8.with改为to
A be familiar to B指“B熟悉A”;A be familiar with B 指“A熟悉B”。
9.requiring改为required
temperatures和require是逻辑动宾关系。
10.have后加been 动词give和主语three states是动宾关系,所以这里要使用被动语态。
解析: 暂无解析

第2题:

A system administrator wants to ensure that the cluster will failover if quorum is lost for appAvg in RG1 whichis mirrored between hdisk3 and hdisk5. Automatic error notification has been configured in this cluster. Which of the following actions should be usedto test that the cluster fails over correctly when quorum is lost for appAvg?()

  • A、Emulate the errpt entry from the HACMP Error Notification menu
  • B、Execute a custom test procedure from the HACMP Cluster Test Tool menu
  • C、Emulate the LVM_SA_QUORCLOSE event from the HACMP Event Emulation menu
  • D、Execute the automated test procedure from the HACMP Cluster Test Tool menu

正确答案:A

第3题:

AcustomerissharinganIBMSystemStorageDS8300forbothIBMSystemzandSystemapplications.Theyneedtoprovidedatarecoverycapabilitybetweentheprimaryandtheremotedatacenter,whichis60kilometersaway.Whichcopyservicekeepsalldatasynchronizedattheremotedatacenter?()

A.ConcurrentCopy

B.FlashCopy

C.MetroMirror

D.GlobalMirror


参考答案:C

第4题:

AnIS-ISrouterisadjacenttoandpassingtrafficwithaneighbor.Youperformashowis interfacedetailcommandandnoticethatforsomeinterfacesyouhaveacircuittypeof3.WhichIS-ISlevel(s)isenabledontheseinterfaces?()

A.Level1only

B.Level2only

C.Level1andLevel2

D.Level3only


参考答案:C

第5题:

(b) You are an audit manager with specific responsibility for reviewing other information in documents containing

audited financial statements before your firm’s auditor’s report is signed. The financial statements of Hegas, a

privately-owned civil engineering company, show total assets of $120 million, revenue of $261 million, and profit

before tax of $9·2 million for the year ended 31 March 2005. Your review of the Annual Report has revealed

the following:

(i) The statement of changes in equity includes $4·5 million under a separate heading of ‘miscellaneous item’

which is described as ‘other difference not recognized in income’. There is no further reference to this

amount or ‘other difference’ elsewhere in the financial statements. However, the Management Report, which

is required by statute, is not audited. It discloses that ‘changes in shareholders’ equity not recognized in

income includes $4·5 million arising on the revaluation of investment properties’.

The notes to the financial statements state that the company has implemented IAS 40 ‘Investment Property’

for the first time in the year to 31 March 2005 and also that ‘the adoption of this standard did not have a

significant impact on Hegas’s financial position or its results of operations during 2005’.

(ii) The chairman’s statement asserts ‘Hegas has now achieved a position as one of the world’s largest

generators of hydro-electricity, with a dedicated commitment to accountable ethical professionalism’. Audit

working papers show that 14% of revenue was derived from hydro-electricity (2004: 12%). Publicly

available information shows that there are seven international suppliers of hydro-electricity in Africa alone,

which are all at least three times the size of Hegas in terms of both annual turnover and population supplied.

Required:

Identify and comment on the implications of the above matters for the auditor’s report on the financial

statements of Hegas for the year ended 31 March 2005. (10 marks)


正确答案:
(b) Implications for the auditor’s report
(i) Management Report
■ $4·5 million represents 3·75% of total assets, 1·7% of revenue and 48·9% profit before tax. As this is material
by any criteria (exceeding all of 2% of total assets, 1/2% revenue and 5% PBT), the specific disclosure requirements
of IASs need to be met (IAS 1 ‘Presentation of Financial Statements’).
■ The Management Report discloses the amount and the reason for a material change in equity whereas the financial
statements do not show the reason for the change and suggest that it is immaterial. As the increase in equity
attributable to this adjustment is nearly half as much as that attributable to PBT there is a material inconsistency
between the Management Report and the audited financial statements.
■ Amendment to the Management Report is not required.
Tutorial note: Marks will be awarded for arguing, alternatively, that the Management Report disclosure needs to
be amended to clarify that the revaluation arises from the first time implementation.
■ Amendment to the financial statements is required because the disclosure is:
– incorrect – as, on first adoption of IAS 40, the fair value adjustment should be against the opening balance
of retained earnings; and
– inadequate – because it is being ‘supplemented’ by additional disclosure in a document which is not within
the scope of the audit of financial statements.
■ Whilst it is true that the adoption of IAS 40 did not have a significant impact on results of operations, Hegas’s
financial position has increased by nearly 4% in respect of the revaluation (to fair value) of just one asset category
(investment properties). As this is significant, the statement in the notes should be redrafted.
■ If the financial statements are not amended, the auditor’s report should be qualified ‘except for’ on grounds of
disagreement (non-compliance with IAS 40) as the matter is material but not pervasive. Additional disclosure
should also be given (e.g. that the ‘other difference’ is a fair value adjustment).
■ However, it is likely that when faced with the prospect of a qualified auditor’s report Hegas’s management will
rectify the financial statements so that an unmodified auditor’s report can be issued.
Tutorial note: Marks will be awarded for other relevant points e.g. citing IAS 8 ‘Accounting Policies, Changes in
Accounting Estimates and Errors’.
(ii) Chairman’s statement
Tutorial note: Hegas is privately-owned therefore IAS 14 ‘Segment Reporting’ does not apply and the proportion of
revenue attributable to hydro-electricity will not be required to be disclosed in the financial statements. However, credit
will be awarded for discussing the implications for the auditor’s report if it is regarded as a material inconsistency on
the assumption that segment revenue (or similar) is reported in the financial statements.
■ The assertion in the chairman’s statement, which does not fall within the scope of the audit of the financial
statements, claims two things, namely that the company:
(1) is ‘one of the world’s largest generators of hydro-electricity’; and
(2) has ‘a dedicated commitment to accountable ethical professionalism’.
■ To the extent that this information does not relate to matters disclosed in the financial statements it may give rise
to a material misstatement of fact. In particular, the first statement presents a misleading impression of the
company’s size. In misleading a user of the financial statements with this statement, the second statement is not
true (as it is not ethical or professional to mislead the reader and potentially undermine the credibility of the
financial statements).
■ The first statement is a material misstatement of fact because, for example:
– the company is privately-owned, and publicly-owned international/multi-nationals are larger;
– the company’s main activity is civil engineering not electricity generation (only 14% of revenue is derived from
HEP);
– as the company ranks at best eighth against African companies alone it ranks much lower globally.
■ Hegas should be asked to reconsider the wording of the chairman’s statement (i.e. removing these assertions) and
consult, as necessary, the company’s legal advisor.
■ If the statement is not changed there will be no grounds for qualification of the opinion on the audited financial
statements. The audit firm should therefore take legal advice on how the matter should be reported.
■ However, an emphasis of matter paragraph may be used to report on matters other than those affecting the audited
financial statements. For example, to explain the misstatement of fact if management refuses to make the
amendment.
Tutorial note: Marks will also be awarded for relevant comments about the chairman’s statement being perceived by
many readers to be subject to audit and therefore that the unfounded statement might undermine the credibility of the
financial statements. Shareholders tend to rely on the chairman’s statement, even though it is not regulated or audited,
because modern financial statements are so complex.

第6题:

5 The directors of Blaina Packaging Co (BPC), a well-established manufacturer of cardboard boxes, are currently

considering whether to enter the cardboard tube market. Cardboard tubes are purchased by customers whose

products are wound around tubes of various sizes ranging from large tubes on which carpets are wound, to small

tubes around which films and paper products are wound. The cardboard tubes are usually purchased in very large

quantities by customers. On average, the cardboard tubes comprise between 1% and 2% of the total cost of the

customers’ finished product.

The directors have gathered the following information:

(1) The cardboard tubes are manufactured on machines which vary in size and speed. The lowest cost machine is

priced at $30,000 and requires only one operative for its operation. A one-day training course is required in order

that an unskilled person can then operate such a machine in an efficient and effective manner.

(2) The cardboard tubes are made from specially formulated paper which, at times during recent years, has been in

short supply.

(3) At present, four major manufacturers of cardboard tubes have an aggregate market share of 80%. The current

market leader has a 26% market share. The market shares of the other three major manufacturers, one of which

is JOL Co, are equal in size. The product ranges offered by the four major manufacturers are similar in terms of

size and quality. The market has grown by 2% per annum during recent years.

(4) A recent report on the activities of a foreign-based multinational company revealed that consideration was being

given to expanding operations in their packaging division overseas. The division possesses large-scale automated

machinery for the manufacture of cardboard tubes of any size.

(5) Another company, Plastic Tubes Co (PTC) produces a narrow, but increasing, range of plastic tubes which are

capable of housing small products such as film and paper-based products. At present, these tubes are on average

30% more expensive than the equivalent sized cardboard tubes sold in the marketplace.

Required:

(a) Using Porter’s five forces model, assess the attractiveness of the option to enter the market for cardboard

tubes as a performance improvement strategy for BPC. (10 marks)


正确答案:
(a) In order to assess the attractiveness of the option to enter the market for spirally-wound paper tubes, the directors of BPC
could make use of Michael Porter’s ‘five forces model’.
In applying this model to the given scenario one might conclude that the relatively low cost of the machine together with the
fact that an unskilled person would only require one day’s training in order to be able to operate a machine, constitute
relatively low costs of entry to the market. Therefore one might reasonably conclude that the threat of new entrants might be
high. This is especially the case where the market is highly fragmented.
The fact that products are usually purchased in very large quantities by customers together with the fact that there is little real
difference between the products of alternative suppliers suggests that customer (buyer) power might well be very high. The
fact that the paper tubes on average only comprise between 1% and 2% of the total cost of the purchaser’s finished product
also suggests that buyer power may well be very high.
The threat from suppliers could be high due to the fact that the specially formulated paper from which the tubes are made is
sometimes in short supply. Hence suppliers might increase their prices with consequential diminution in gross margin of the
firms in the marketplace.
The threat from competitive rivals will be strong as the four major players in the market are of similar size and that the market
is a slow growing market. The market leader currently has 26% of the market and the three nearest competitors hold
approximately 18% of the market.
The fact that Plastic Tubes Co (PTC) produces a narrow range of plastic tubes constitutes a threat from a substitute product.
This threat will increase if the product range of PTC is extended and the price of plastic tubes is reduced.
The fact that a foreign-based multinational company is considering entering this market represents a significant threat from a
potential new entrant as it would appear that the multinational company might well be able to derive economies of scale from
large scale automated machinery and has manufacturing flexibility.
Low capital barriers to entry might appeal to BPC but they would also appeal to other potential entrants. The low growth
market, the ease of entry, the existence of established competitors, a credible threat of backward vertical integration by
suppliers, the imminent entry by a multi-national, a struggling established competitor and the difficulty of differentiating an
industrial commodity should call into question the potential of BPC to achieve any sort of competitive advantage. If BPC can
achieve the position of lowest cost producer within the industry then entry into the market might be a good move. In order
to assess whether this is possible BPC must consider any potential synergies that would exist between its cardboard business
and that of the tubes operation.
From the information available, the option to enter the market for cardboard tubes appears to be unattractive. The directors
of BPC should seek alternative performance improvement strategies.