What two are elements of the operational-efficiency Business Challenge?（）
阅读下列程序段，说明程序执行后AL,BX的值。 OPE1 DB 3．．4 OPE2 DW 3345H, 6799H MOV AL, OPE1 MOV BX, OPE2 +1 SUB BL, AL INT 3 结果：AL=（）；BX=（）。
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Before a Diffie-Hellman exchange may begin， the two parties involved must agree on what？（）A、Two secret keysB、Two nonsecret keysC、Two secret numbersD、Two nonsecret numbers
String[] elements = { “for”， “tea”， “too” }； String first = （elements.length > 0）？ elements[0] null； What is the result？（）A、 Compilation fails.B、 An exception is thrown at runtime.C、 The variable first is set to null.D、 The variable first is set to elements[0].
Which two elements of the Java Enterprise Application Archive are required?（）A、EJB Archive B、Deployment DescriptorC、META-INF sub directoryD、Resource Adapter archiveE、Java library
Which two attributes need to match for two switches to become members of the same MST region？ （）A、the table of 4096 elements that map the respective VLAN to STP instance numberB、VTP versionC、configuration revision numberD、native VLAN ID
Which two of these elements need to be configured prior to enabling SSH？（）A、hostnameB、loopback addressC、default gatewayD、domain nameE、SSH peer address
CiscoWorks IP Telephony Environment Monitor (ITEM) provides what two serviceability capabilities?（）A、Tool to collect syslog messages from multiple sources B、User Tracking to track IP telephones C、Diagnostic trace tools to analyze connectivity D、Monitoring of Cisco voice elements E、Problem alerts for operations personnel
