多选题Which the two are characteristics of the Service Locator pattern？（）AIt encapsulates component lookup proceduresBIt increases source code duplication and decreases reuseCIt improves client performance by caching context and factory objectsDIt degrades n

 Flyweight

 Transfer Object

 Service Locator

 Dispatcher View

 Business Delegate

 Model-View-Controller

it supports very large data-sets such as the result-sets from large search queries to be held in memory

it provides a set of management tools that enables automation of configuration

it provides enhanced visibility across the entire application infrastructure

it significantly increases the performance of Web-based applications with no code change

Create a reverse lookup zone in DNS for each new Domain.

Add a WINS lookup record to the DNS forward lookup zone.

Add a WINS reverse record to the DNS reverse lookup zone.

Enable Dynamic updates for DownLevel client computers on each DHCP server.

Install the Active Directory Client on All Computers in the Customer service department.

it provides enhanced visibility across the entire application infrastructure

it provides a set of management tools that enable automation of configuraion

it significantly increases the performance of Web-based applications with no code change

it dramatically reduces costs associated with diagnostics， configuration， and deployment on production servers

It reduces network traffic by collapsing multiple remote requests into one.

It increases the complexity of the remote interface by removing coarse-grained methods.

It increases the complexity of the design due to remote synchronization and version control issues.

It increases network performance introducing multiple fine-grained remote requests which return verysmall amounts of data.

It encapsulates component lookup procedures.

It increases source code duplication and decreases reuse.

It improves client performance by caching context and factory objects.

It degrades network performance due to increased access to distributed lookup services.

 It decreases complexity by removing a layer of proxy classes.

 It reduces coupling between tiers by hiding implementation details.

 It decreases performance due to the lack of caching of remote data.

 It forces business-tier expectations to be dealt with in the presentation-tier.

It confines network instability to a single area of network.

It increases the routing overhead of the network

It supports VLSM

It routes between Autonomous Systems.

It allows extensive control of routing updates

it provides centralized request handling for incoming requests.

It forces resource authentication to be distributed across web components.

It reduces coupling between presentation-tier clients and underlying business services.

It can be added and removed unobtrusively， without requiring changes to existing  code.

It allows preprocessing and postprocessing on the incoming requests and outgoing  responses.

Finding queries that are not using indexes

Finding rows that are locked by InnoDB

Finding client connection attributes

Finding the part of a code in which a single query is spending time

Finding the size of each table

JSP to Transfer Object

Service Locator to JNDI

Controller to request object

Transfer Object to Entity Bean

Controller to Business Delegate

It burns IP addresses.

It conserves IP addresses.

Both the client and the ERX Edge Router have IP addresses.

The client has an IP address， but the ERX Edge Router uses an unnumbered address.

 prof

 gprof

 kprof

 tprof

As voltage increases， resistance decreases

As amperage decreases， resistance decreases

As resistance decreases， amperage increases

As resistance increases， voltage increases

It simplifies remote interfaces to distributed objects.

It promotes cleaner application partitioning and encourages reuse.

It provides an initial point of contact for handling all related requests.

It reduces maintainability due to the increased complexity of the design.

It provides loosely coupled handlers that can be combined in various permutations.