Which two demonstrate encapsulation of data？（）  A、 Member data have no access modifiers.B、 Member data can be modified directly.C、 The access modifier for methods is protected.D、 The access modifier to member data is private.E、 Methods provide for access 

第1题：

Which two statements are true regarding the USING clause in table joins?（）

• A、It can be used to join a maximum of three tables 
• B、It can be used to restrict the number of columns used in a NATURAL join 
• C、It can be used to access data from tables through equijoins as well as nonequijoins 
• D、It can be used to join tables that have columns with the same name and compatible data types

第2题：

What does a Cisco Unified Wireless IP Phone 7921G deployment require（）？

• A、more access points than a data network
• B、fewer access points than a data network
• C、less SNR than a data network
• D、specific relative access point placement

第3题：

You want subclasses in any package to have access to members of a superclass. Which is the most restrictive access modifier that will accomplish this objective？（）  

• A、 Public
• B、 Private
• C、 Protected
• D、 Transient
• E、 No access modifier is qualified.

第4题：

Which three can be symptoms of the growth phase in the Cisco SBR methodology?（）

• A、Facilitate Employee Reachability
• B、Unable to provide rapid secure access to customer history, data or buying behavior
• C、Need to provide XYZ LTD with a basic up-to-date website
• D、Provide rapid access for geographically dispersed employees
• E、Need to facilitate customer reachability
• F、Provide a Website on par with competitors

第5题：

A member variable defined in a class can be accessed only by the classes in the same package. Which modifier should be used to obtain the access control？（）         

• A、 private
• B、 no modifier
• C、 public
• D、 protected

第6题：

The AirMagnet passive site survey tool can provide RF coverage data， except for which parameter？（）

• A、Signal strength （4th access point）
• B、Signal strength （3rd access point）
• C、Channel interference
• D、Predictive physical data rate downlink （2nd access point）

第7题：

A site administrator is configuring Resource-level access control.  Which of the following statements about Resource-level access control are true？ Resource-level access control policies：（）

• A、are optional
• B、are used to protect data beans
• C、provide coarse-grained access control
• D、never specify a relationship

第8题：

You want subclasses in any package to have access to members of a superclass. Which is the mostrestrictive access modifier that will accomplish this objective？（） 

• A、 Public
• B、 Private
• C、 Protected
• D、 Transient
• E、 No access modifier is qualified

第9题：

Which statement is true about the data traffic between the access point named TKAP1 and  controller TKC1？（）

• A、 The data traffic between the access point and controller is not encrypted.
• B、 The data traffic is encapsulated with LWAPP.
• C、 The data traffic is switched at the access point before being sent to the WLAN controller where  VLAN tagging and QoS are applied.
• D、 The data traffic is encrypted with AES.
• E、 All of the above

第10题：

Which benefit does digital subscriber line (DSL) systems for broadband access provide to the user?（）

• A、Secure access to company extranet
• B、Dedicated lines for high security data transfer
• C、Simple solution for high-quality digital video using coaxial cable
• D、Data and audio signals that share the same communications infrastructure