System integration

Which of the following allow for filling input fields with default values or database values

Presentation Layer

Database Layer

Application Layer

Router Layer

Which of the following are not relational Database

Oracle

DB2

ERP

Access

What are disadvantages of asymmetric key crytography

Encryption algorithms are normally slower than symmetric-Key cipher

Key much longer than 1000bits

Security is based on the difficulty of factoring large numbers

All are correct

Integration of security service is...?

Easy

An option decision

Difficult and more risk than security of each component

More risk than the risk of each component

What are different types of middleware?

Point to point, broadcasting, CORBA

Message oriented middleware, Object architectures, transaction processing

Point to point, broadcast, MSMQ

Com+, CORBA, Enterprise Java Beans

Which of the following consist of a database layer, application layer, and presentation layer

DB2

ERP

SAP

The simplest way to achieve load balancing is to:

Maintain a list of available servers and pass incoming requests to those servers

Distribute the load of data transfer to a single server with high capacity

Buy the latest load balancing software

Institute single tier architecture

Which of the following is a generic solution to the challenge of performance?

Scalable solutions

Reliable solutions

Transparent solutions

Server solutions

Evaluation of the performance of an information system is dependent on which of the following factors

Number of users and user expectations

Number of users and management expectations

Number of managers

Management expectations

What is some of important security terms?

Authentication, authorization, Audit

Authentication, access control, logging activity

Load balance, data redundancy

None is correct

What are system security architecture?

The system has enough security level

3 security architecture to protect the system

The policies, procedures, and technologies that mitigate the risk

The technologies the ensure system security

What is not an important security term?

Authorization

Security protocol

Non repudiation

Replication

What is an important issues we can get when system integrated support for electronic commerce?

Greater data

Greater security risk

Complex process

Reliable communication of information

Authorization is... ?

The determinator of claimed identify

The determinator of access to resources

The prevention of a principal from denying participation

The rules that govern communications between principal

What take place first to ensure security system?

Automation

Authorization

Authentication

Atomicity

Which kind of technique can make sure non- repudiation?

Encryption

Decryption

Defense

Digital signatures

System should be defensed in...?

Depth better than breadth

Breadth than Depth

Depth

Depth and Breadth

What are advantages of symmetric key cryptography?

Key are relative long

Key must be replaced often

The encryption and decryption algorithms can be fast in both hardware and software

Key distribution is easy

Which are common mistake in data integration?

Creating a big new database

Integrate data at all sites

Analyzing legacy database to finish developing a new database

Testing without a sufficient set of real data

What is the main goal of database normalization?

Restructure the logical data model of a database to eliminate redundancy (1)

Reduce the potential for data anomalies (2)

Not is correct

Both (1) and (2) are correct

Which phase are emphasized in system integration life cycles?

Requirements and specification

Testing, Maintenance and Retirement

Both A and B are correct

None is correct

What need you do in requirements and specification phase when you want to integrate two systems?

Collect requirements

Identify user involve

Legacy system analysis

None is correct

Why is testing in system integration more complex than in system development?

Because design tests that are within system integrator's control

Data adhere to specificatons

Have to test all scenarios

All are correct

Why do the legacy systems need to remain in place until new systems are completely integrated?

To minimize changing

To reduce cost

For system integrated be tested in planned

To operating easier

Is process the most important choice system integration projects? Why?

Yes. Easy to control and monitor the result of project

No. The engineers who give the solutions for the problems are most important

Yes. Following the process will get the right solutions

No. Both the engineers, who give the solutions for the problems, and process, are needed

Which factors affect to selection process for system integration?

Ability to handle rapidly changing (unstable) set of requirements

Complexity or size of product

Suitability for small development team

All are correct

How many types of integration model are there? And what are they?

4- Waterfall, Rapid Application Development, Spiral, Agile

3- Waterfall, Spiral, Agile

3- Presentation, Functional and Data Integration

Both A and C are correct

Which are the characteristics of Presentation Integration?

Database is independent and may have inconsistent information (1)

It's read only (2)

(1) and (2) are correct

None is correct

Which is advantage of Presentation Integration?

Easy to implement

Information presentation often meets user need

Legacy applications unaffected

All are correct

What can we do to have a security service?

Load balancing and data redunancy

Authenticated, access control ang logging activities

None is correct

Both A and B are correct

After data source updated, how long will the system be in the consistent state?

Real time

Near real time

One day

Based on user requirements

Choose a middleware that can enforcement of ACID properties for all intersystem transactions?

TPM(Transaction Processing Monitor)

OTM(Object- Transaction Monitor)

MTM(Message-Transaction Monitor)

All are correct

Which are common mistake in data integration?

Creating a big new database

Integrate data at all sites

Analyzing legacy database to finish developing a new database

Testing without a sufficient of real data

Which order is preferred to ensure the system defensed in depth?

Protect-Detect-Recover

Detect-Protect-Recover

Detect-Recover-Protect

Protect-Recover-Detect

What are advantages of asymmetric key cryptography?

Key is hard to distribute

Key does not have to replaced as often and distribution is easy

Key is short

Key need to replace often

What is characteristic of Symmetric-key Cryptography

Key E = Key D

Key E <> Key D

Key E and Key D are public key

None of above

System integration

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