Given classes defined in two different files：  1. package util；  2. public class BitUtils {  3. public static void process（byte[]） { /* more code here */ }  4. }  1. package app；  2. public class SomeApp {  3. public static void main（String[] args） {  4.

第1题：

第2题：

How are the commands a user is allowed to enter defined in JUNOS?（）

• A、Permissions are configured individually for each user.
• B、Users are associated with user classes, and each class defines the permissions for entering commands.
• C、There are four default classes with different permissions and you can only use these four.
• D、Permissions are associated with each user ID

第3题：

第4题：

It is desirable that a certain method within a certain class can only be accessed by classes that are defined within the same package as the class of the method. How can such restrictions be enforced？（）  

• A、Mark the method with the keyword public.
• B、Mark the method with the keyword protected.
• C、Mark the method with the keyword private.
• D、Mark the method with the keyword package.
• E、Do not mark the method with any accessibility modifiers.

第5题：

Which two statements are true of login classes?（）

• A、Users can be members of multiple login classes.
• B、Login classes define authorization parameters for a user.
• C、There are five system-defined login classes.
• D、Login class permission flags can be overridden for certain commands.

第6题：

Given two different character sets （A and B）， which of the following must be true for A to be considered a strict superset of B？（）

• A、 A must contain all of the characters defined in B
• B、 A must be Unicode
• C、 The encoded values in A must match the encoded values in B for all characters defined in B 
• D、 A must be a multibyte character set
• E、 The encoded values in A must match the encoded values in B for all numeric and alphabetic character

第7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8题：

第9题：

Overlay Transport Virtualization （OTV） join interface is used to source the OTV encapsulated traffic and send it to the Layer 3 domain of the data center network. Which statements are true about OTV join interface？ （）

• A、 Join interface is a Layer 3 entity， and with the Cisco NX-OS release 6.0， it can only be defined as a physical interface， physical subinterface， Layer 3 port channel， or Layer 3 port channel subinterface.
• B、 A single join interface can be defined and associated with a given OTV overlay.
• C、 Multiple overlays can also share the same join interface.
• D、 Join interface can be a loopback interface.
• E、 The join interface is a Layer 3 entity that can be defined as a physical interface but not as a logical one.

第10题：

How many strict-high priority forwarding classes can be applied to a given interface？（）

• A、1
• B、2
• C、3
• D、4