Which 4 statements regarding MPLS Label Stack Encoding is true？（）

A . It supports fast synchronization at starting and before network failures B . It supports automatic server discovery C . It uses a fixed-point arithmetion D . It supports the "nanokernel" kernel implementation E . It does not support Public-Key Cryptography

A .  custom URL categories cannot contain IP addresses B .  custom URL categories cannot override predefined URL categories C .  custom URL categories can contain domain names D .  custom URL categories can use regular expressio

A . Has-a relationships should never be encapsulated. B . Has-a relationships should be implemented using inheritance. C . Has-a relationships can be implemented using instance variables. D . Is-a relationships can be implemented using the extends keyword. E . Is-a relationships can be implemented using the implements keyword. F . An array or a collection can be used to implement a one-to-many has-a relationship.

A . It establishes a static route to the 172.16.3.0 network B . It establishes a static route to the 192.168.2.0 network C . It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network D . It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4 E . It uses the default administrative distance F . It is a route that would be used last if other routes to the same destination exist

A .  the L4TM allow list overrides the block list B .  the overlap of the L4TM allow list and block list is the L4TM grey list C .  the L4TM block lists override the allow lists D .  L4TM allow list and block list overlaps are not permitted

A . This reading is at the same elevation as the 6.2 ft. mark on the gage at Head of Passes B . A vessel drawing 8 ft would be able to pass over the sill at Old River Lock C . This reading is 6.4 feet below the Low Water Reference Plane D . A vessel drawing 7 ft. would be able to pass through the locks at Lower Old River

A .  If only one thread is blocked in the wait method of an object， and another thread executes the modify on that same object， then the first thread immediately resumes execution. B .  If a thread is blocked in the wait method of an object， and another thread executes the notify method on the same object， it is still possible that the first thread might never resume execution. C .  If a thread is blocked in the wait method of an object， and another thread executes the notify method on the same object， then the first thread definitely resumes execution as a direct and sole  consequence of the notify call. D .  If two threads are blocked in the wait method of one object， and another thread executes the notify method on the same object， then the first thread that executed the wait call first definitely resumes execution as a direct and sole consequence of the notify call.

A . A final method in class X can be abstract if and only if X is abstract. B . A protected method in class X can be overridden by any subclass of X. C . A private static method can be called only within other static methods in class X. D . A non-static public final method in class X can be overridden in any subclass of X. E . A public static method in class X can be called by a subclass of X without explicitly referencing the class X. F . A method with the same signature as a private final method in class X can be implemented in a subclass of X. G . A protected method in class X can be overridden by a subclass of X only if the subclass is in the same package as X.

A . Echo is the discernable leak-through of your own Rx path into your own Tx path.  B . Echo is the discernable leak-through of the packets of your Rx path into your own Tx path.  C . Echo is the nonaudible leak-through of the packets of your Rx path into your own Tx path.  D . Echo is the audible leak-through of the packets from the transmit path into your own receive path.  E . Echo is the nonaudible leak-through of the packets of your Tx path into your own Rx path.

A . It is possible for more than two threads to deadlock at once. B . The JVM implementation guarantees that multiple threads cannot enter into a deadlocked state. C . Deadlocked threads release once their sleep（） method’s sleep duration has expired. D . Deadlocking can occur only when the wait（）， notify（）， and notifyAll（） methods are used incorrectly. E . It is possible for a single-threaded application to deadlock if synchronized blocks are used incorrectly. F . If a piece of code is capable of deadlocking， you cannot eliminate the possibility ofdeadlocking by insertinginvocations of Thread.yield（）.

A .  If only one thread is blocked in the wait method of an object， and another thread executes the modify on that same object， then the first thread immediately resumes execution. B .  If a thread is blocked in the wait method of an object， and another thread executes the notify method on the same object， it is still possible that the first thread might never resume execution. C .  If a thread is blocked in the wait method of an object， and another thread executes the notify method on the same object， then the first thread definitely resumes execution as a direct and sole consequence of the notify call. D .  If two threads are blocked in the wait method of one object， and another thread executes the notify method on the same object， then the first thread that executed the wait call first definitely resumes execution as a direct and sole consequence of the notify call.

A .  The default constructor initializes method variables. B .  The default constructor has the same access as its class. C .  The default constructor invoked the no-arg constructor of the superclass. D .  If a class lacks a no-arg constructor， the compiler always creates a default constructor.  E .  The compiler creates a default constructor only when there are no other constructors for the class.

A . CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE = SYSDATE); B . CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE); C . CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status VARCHAR2 (10), date_ordered DATE DEFAULT SYSDATE); D . CREATE OR REPLACE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE); E . CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE = SYSDATE); F . CREATE TABLE orders ( order_id NUMBER (10), customer_id NUMBER (8), order_status NUMBER (10), date_ordered DATE DEFAULT SYSDATE)

A .  To provide the Service Agent function， both HMCs must have Service Agent enabled and a dedicated modem and phone line. B .  Authorized users must have the same username and password on both HMCs， so that every user of one HMC is automatically authorized on the other. C .  Both HMCs are automatically notified of any changes that occur in the managed systems， so results of changes made to the managed system by one HMC are visible on the D .  Both HMCs must be running the same software revision. Software maintenance must be performed on both HMCs at the same time， but one HMC should be disconnected from

A . COMMIT… B . MERGE… C . UPDATE… D . DELETE… E . CREATE… F . DROP&helli

A . It establishes a static route to the 172.16.3.0 network. B . It establishes a static route to the 192.168.2.0 network. C . It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network. D . It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4. E . It uses the default administrative distance. F . It is a route that would be used last if other routes to the same destination exist.

A . It establishes a static route to the 172.16.3.0 network. B . It establishes a static route to the 192.168.2.0 network. C . It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network. D . It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4. E . It uses the default administrative distance. F . It is a route that would be used last if other routes to the same destination exist.

A . An IPv4-compatible tunnel is a static tunnel， but an 6to4 tunnel is a semiautomatic tunnel. B . The deployment of a IPv4-compatible tunnel requires a special code on the edge routers， but a 6to4 tunnel does not require any special code. C . An IPv4-compatible tunnel is typically used only between two IPv6 domains， but a 6to4 tunnel is used to connect to connect two or more IPv6 domains. D . For an IPv4-compatible tunnel， the ISP assigns only IPv4 addresses for each domain， but for a 6to4 tunnel， the ISP assigns only IPv6 addresses for each domain.

A . The default administrative distance is used. B . The command is used to establish a static route. C . The command is used to configure the router interfaces. D . The command is used to establish a stub network. E . The subnet mask for the source address is 255.255.255.0

A . SELECT MAX (gpa) FROM student _ grades WHERE gpa IS NOT NULL; B . SELECT (gpa) FROM student _ grades GROUP BY semester_end WHERE gpa IS NOT NULL; C . SELECT MAX (gpa) FROM student _ grades WHERE gpa IS NOT NULL GROUP BY semester_end; D . SELECT MAX (gpa) GROUP BY semester_end WHERE gpa IS NOT NULL FROM student _ grades; E . SELECT MAX (gpa) FROM student _ grades GROUP BY semester_end WHERE gpa IS NOT NULL