Answer the following questions about Figure 2.2 when the communication is from Maria to Ann: a. What
Question:
a. What is the service provided by layer 2 to layer 3 at Marias site?
b. What is the service provided by layer 2 to layer 3 at Anns site?
Figure 2.2
Transcribed Image Text:
Maria Ann Layer 3 Layer 3 Listen/Talk Listen/Talk Identical objects Plaintext -Plaintext Layer 2 Encrypt/Decrypt Encrypt/Decrypt Layer 2 Identical objects |Ciphertext Ciphertext Send mail/ Send mail/ Layer 1 Layer 1 receive mail receive mail Identical objects -Mail Mail US Post US Post Postal carrier facility
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The services provided in part a and part b are ...View the full answer
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my expertise are as follows: financial accounting : - journal entries - financial statements including balance sheet, profit & loss account, cash flow statement & statement of changes in equity -consolidated statement of financial position. -ratio analysis -depreciation methods -accounting concepts -understanding and application of all international financial reporting standards (ifrs) -international accounting standards (ias) -etc business analysis : -business strategy -strategic choices -business processes -e-business -e-marketing -project management -finance -hrm financial management : -project appraisal -capital budgeting -net present value (npv) -internal rate of return (irr) -net present value(npv) -payback period -strategic position -strategic choices -information technology -project management -finance -human resource management auditing: -internal audit -external audit -substantive procedures -analytic procedures -designing and assessment of internal controls -developing the flow charts & data flow diagrams -audit reports -engagement letter -materiality economics: -micro -macro -game theory -econometric -mathematical application in economics -empirical macroeconomics -international trade -international political economy -monetary theory and policy -public economics ,business law, and all regarding commerce
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