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Which of the following is a characteristic of a data center core？（）
A . Server-to-server traffic always remains in the core layer.
B . The recommended practice is for the core infrastructure to be in Layer 3.
C . The boundary between Layer 2 and Layer 3 should be implemented in the aggregation layer.
D . The Cisco Express Forwarding hashing algorithm is the default， based on the IP address andLayer 4 port.
E . Core layer should run BGP along with an IGP because iBGP has a lower administrativedistance than any IGP.
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（）is a measure of the market value of all goods and services within the boundaries of a nation.
A . GNP
B . GDP
C . FDI
D . MNC
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A file named "core" exists in the current directory. Which of the following commands should be used to determine what created the "core" file?（）
A . dump -t core
B . strings core
C . trace -a core
D . crash core /unix_u
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Why would an administrator change the value of the spanning-tree priority of a switch?（）
A . in order to optimize the path that frames take from source to destination
B . to increase the priority so a designated port will become a root port
C . to increase the BID, so the switch is more likely to become root bridge
D . in order to allow VLANs to be sent from one switch to another across a single link
E . to force a given switch to become an STP server
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A customer plans to consolidate two 8-core POWER6 systems with a total of 8 PCI-X adapters, 6 PCIe adapters, and a PCI-X I/O drawer into a 16-core Power 750. Which action allows the most efficient use of existing equipment?（）
A . Populate the Power 750 first then add a GX+ adapter to support PCI-X andPCIe I/O drawer loops.
B . Populate the Power 750 first then add 2 GX+ adapters to support PCI-X andPCIe I/O drawer loops.
C . Populate the Power 750 first then add a GX++ adapter to support PCI-X andPCIe I/O drawer loops.
D . Populate the Power 750 first then add GX+ and GX++ adapters to support PCI-X andPCIe I/O drawer loops.
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What type of constraint is used to ensure that each row inserted into the EMPLOYEE table with a value in the WORKDEPT column has a row with a corresponding value in the DEPTNO column of the DEPARTMENT table?（）
A . A check constraint on the EMPLOYEE table
B . A unique constraint on the EMPLOYEE table WORKDEPT column
C . A foreign key reference from the DEPARTMENT tables DEPTNO column to the WORKDEPT column of the EMPLOYEE table
D . A foreign key reference from the EMPLOYEE tables WORKDEPT column to the DEPTNO column of the DEPARTMENT table
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What is an advantage of having wire rope with a fiber core over that of a wire rope of the same size with a wire core（）.
A . Fiber core rope offers greater strength
B . Fiber core rope offers greater flexibility
C . Fiber core rope can be used at higher operating temperatures
D . Fiber core rope is the only type authorized for cargo runner
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A direct current passing through a wire coiled around a soft iron core is the description of a simple（）.
A . magnetic shield
B . electromagnet
C . piezoelectric device
D . electromagnetic domai
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Which of the following scenarios will ensure that the value of the NEXT_STEPNO column in a given row of table TABLEX exists as a value of column STEPNO (usually in another row) in the same table?（）
A . Define a UNIQUE constraint on the columns NEXT_STEPNO and STEPNO.
B . Define a CHECK constraint on the NEXT_STEPNO column (NEXT_STEPNO = STEPNO).
C . Define column STEPNO as the primary key of TABLEX and column NEXT_STEPNO as a foreign key referencing column STEPNO of the same table.
D . Define column NEXT_STEPNO as the primary key of TABLEX and column STEPNO as a foreign key referencing column NEXT_STEPNO in the same table.
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Where can you check the value of a dependency property? （）
A . WPF visualizer
B . in locals
C . WPF tree visualizer
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By setting the value of MEMORY_TARGET to zero and setting the value of SGA_TARGET to a nonzero value， you will enable which of the following memory-management options？（）
A . Automatic PGA Memory Management
B . Automatic SGA Memory Management
C . Automatic Shared Memory Management
D . Automatic Memory Management
E . Manual SGA Memory Management
F . None of the above
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For a Chinese investor, a declining RMB value could hurt the value of his foreign investments.
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Market cap is the total value of tradable shares of a listed company.
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Synchronically, the basic meaning of a word is considered to be the core of word meaning, called the _______ meaning.
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College students often lack skills that are valued by employers, such as critical thinking, creativity, communication, conflict resolution, and teamwork skills, which constitute the important parts of “core competencies”.
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For a given rate of return, we can determine the value at some point in the future of an investment made today by calculating the present value of that investment.
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Corporate culture includes such elements as core values and beliefs, corporate ethics, and rules of behavior.
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During the seminar, each nationality is required to make clear their core values.
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Which of the following are some of the core values and expectations of academic culture mentioned by academics in 1.2a?
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The value of a firm is maximized when the weighted average cost of capital is minimized。 （ ）
A:对
B:错
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(单选题)Which of the following factors does not affect the value of a European option?
A、The
B、Dividends
C、The
D、Both
E、Statement
F、Statement
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There may be a solid core at the center of the Sun______.
A．because the pressures are great
B．for the temperature is not high enough
C．in spite of the great pressures
D．because of the high temperature
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The par value of a stock is the minimum amount of capital of the corporation existing
是
否
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The par value of the common stock of a large listed corporation （).
A．A.Tends to establish a ceiling for the market price of the stock.
B．B.Tends to establish a floor for the market price of the stock.
C．C.Represents legal capital and is not related to the market price of the stock.
D．D.Is increased by net income and decreased by dividends.
