Review Questions
Which statement is a common approach when designing an application's authentication structure?
Focus on creating and building the authentication structure within the application.
Rely on the application's team to design and implement the authentication services.
Focus on selecting the simplest and most cost-effective solution.
Rely on external authentication services that are available to the application.
Access control mechanisms within an application should be able to support some basic objectives. Which of the following objectives is not an achievable objective?
Detecting when end users share their access privileges
Encrypting stored data
Assigning a security profile to each end user
Managing user accounts and policies
Data confidentiality and data integrity can be achieved through appropriately implementing authentication and access control mechanisms. Which of the following implementations does not support either of these two goals?
Performing periodic audit log reviews to prevent security breaches
Including edit checks, such as date checks and valid ranges, in data entry panels
Assigning access to sensitive data only to end users with a need to know
Enabling data encryption services within the application
To support auditing requirements, applications must provide certain logging conditions. Which of the following is not considered an essential condition?
Log the data, time, and location for all significant events.
Log all modifications, additions, or deletions made against the database.
Log all inquiries made against the database.
Log the identity of the user or process that performed an action.
What is the purpose of security technologies?
To make an application more accessible and available through security
To provide an application with a safer and more secure image
To enhance the look and feel of the application
To ensure that an application is completely protected from threats
An effective tool that monitors events in an application log for attacks, anomalous activities, resource utilization, and availability is an example of.
Directory services
Virtual Private Networks
Public key infrastructure
Intrusion-detection systems
What is the correct definition of reliability?
Reliability is the probability that a system or a system's capability functions without failure for a specified time.
Reliability is the ability to service a component in the system without shutting down the entire operation.
Reliability is when the state of an executing program is periodically saved to a disk file from which it can be recovered.
Reliability is the ability to continue to perform a specified task even when a hardware failure occurs.
What is the correct definition of availability?
Availability is the process of restoring a backup because of a planned business situation or an unplanned event.
Availability is the probability that a system functions satisfactorily in a specified environment.
Availability is a way to store the same data in different places on multiple hard disks.
Availability provides a means for easier management of your computing resources, while not restricting the systems' potential capabilities.
Which of these choices is not a method used to achieve reliability and availability?
SLAs
Outage
Backup and recovery
Clustering
Which statement does not describe a scalability characteristic?
Scalability is the ease with which a system or component is modified to fit a problem area.
Scalability is a combination of things, including good database management.
Scalability refers to how well a hardware or software system can adapt to increased demands.
Scalability will not change in size or configuration to suit changing conditions.
Which question is not a factor to consider for scalability?
How many records can the system hold?
How well does the application grow?
How many users can use the system at one time?
How long can each user be on the system?
In relation to scalable software solutions, software components should be distributed across what type of platform?
Multithreaded
Single
Threaded
Multiple
Which method should not be considered to ensure a scalable network?
Increasing the number of CPUs on your web servers
Express forwarding
DistributedDirector
Tag switching
Which service allows enterprises and service providers to conserve valuable IP addresses by hiding internal IP address from public networks?
DistributedDirector
Tag switching
Network Address Translation
NetFlow switching
If you double the number of processors on your web server, performance should.
Decrease by half
Increase, but less than double
Increase exponentially by a factor of four
Double
Which factor is not important for application performance?
User productivity
Application being up
Perception
Logic
What workload growth is related to increased transactions and more component access?
User population
Transaction complexity
Component allocation
Application population
What design factor determines how a database can affect performance?
Workload growth
Transaction complexity
Indexing
Application population
Which of these statements describes a multi-user operating system?
It allows two or more users to run programs at the same time. Some operating systems permit hundreds or thousands of concurrent users.
The operating system supports running a program on more than one CPU.
It allows multiple programs to run concurrently.
The operating system allows different parts of a single program to run concurrently.
Which of these actions is not a reason to support software maintenance?
Performing enhancements to optimize
Correcting errors in the software
Adapting to change in the operational environment
Adding an Internet interface to a legacy billing application
Application services administration can affect application manageability by which of these means?
Taking care of the database design and implementation
Not maintaining documentation and standards
Working without a team
Capacity planning
Which of these services is not typically provided by the operations management team?
Changing the application code to add new functionality
Providing console services
Retaining an onsite maintenance staff
Operating a help desk service
Which of these features is not required to support an application's manageability?
Architecture
Environments that perform stress and volume testing
Global clientele
Distribution and management
Which statement is not a description of application integration?
Application integration is about interoperability and information synchronization across multiple applications.
Application integration is about bringing together multiple disparate applications so that they work together, as if they were one application.
Application integration provides the path and traffic management for message flow between integrated resources.
Application integration must have a tool or methodology in place to facilitate this process.
What benefit is not linked to application integration?
10 to 15 percent reduction in IT budget
25 to 50 percent reduction in time-to-market for new applications
Increased efficiency through consistent and accurate information available in real time
Reduced cost and complexity compared to custom point-to-point integration
What question should not be asked when considering application integration?
What resources are available to address the problem?
How much space is on the hard drive?
What entry points are available into the applications being integrated?
How many applications need to be integrated?