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【单选题】

Describe the benefits of a virtual tape solution over a native tape solution in a mainframe serverenvironment.（）

A、 the use of physical LTO-5 drives and cartridges for virtualization reduces the overall floor spacerequired for the virtual tape solution 

B、 the virtual tape solution reduces the number of cartridges and physical drives required, andimproves throughput 

C、 the virtual tape solution provides a faster robotic access to virtual cartridges sent to the physicaltape librarywhich guarantees faster accesstimes 

D、 the virtual tape solution provides a larger range of virtual tape drives and automates the backupprocess to physical tape by full synchronousreplication 

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第1题
[单选题] What is the term that is used to describe the process of converting a signal from digital to analog？（）

A、 packetization  B、 quantization  C、 decoding  D、 sampling  

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第2题
[单选题] What is true regarding the OSPF Type 2 LSA?（）

A、The DR floods this to describe the local stub network segment.  B、The ABR floods this to describe the local stub network segment.  C、The DR floods this to describe the local transit network segment.  D、Each OSPF router floods this to describe its interfaces and metrics.  E、The DR and BDR flood this to describe the local transit network segment.  

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第3题
[单选题] Which of the following is NOT one of the three details you need to fill in on the New Custom Control dialog？（）

A、Name of the custom control  B、Comments to describe the custom control  C、List of the controls that will make up this custom control  D、Application that will contain the custom control  

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第4题
[单选题] A datacenter director implements a new security measure in response to multiple equipment thefts from the datacenter. The new security measure requires people entering or leaving the data center to go through an extra secure area. Once entering the area people must present two forms of authentication to leave. Which of the following security measures does this describe？（）

A、Mantrap  B、RFID cards  C、Defense in depth  D、Biometrics  

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第5题
[单选题] CREATE TABLE dept (deptno NUMBER(2), dname VARCNAR2(14), 1oc VARCNAR2 (13)); ROLLBACK; DESCRIBE DEPT What is true about the set? （）

A、The DESCRIBE DEPT statement displays the structure of the DEPT table.  B、The ROLLBACK statement frees the storage space occupies by the DEPT table.  C、The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist.  D、The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.  

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第6题
[单选题] Evaluate the set of SQL statements: CREATE TABLE dept (deptno NUMBER(2), dname VARCHAR2(14), loc VARCHAR2(13)); ROLLBACK; DESCRIBE DEPT What is true about the set?（）

A、The DESCRIBE DEPT statement displays the structure of the DEPT table.  B、The ROLLBACK statement frees the storage space occupied by the DEPT table.  C、The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist.  D、The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.  

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第7题
[单选题] Evaluate the set of SQL statements: CREATE TABLE dept (deptno NUMBER(2), dname VARCHAR2(14), loc VARCHAR2(13)); ROLLBACK; DESCRIBE DEPT What is true about the set?（）

A、The DESCRIBE DEPT statement displays the structure of the DEPT table.  B、The ROLLBACK statement frees the storage space occupied by the DEPT table.  C、The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist.  D、The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.  

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第8题
[单选题] Evaluate the set of SQL statements: CREATE TABLE dept (deptno NUMBER(2), dname VARCHAR2(14), loc VARCHAR2(13)); ROLLBACK; DESCRIBE DEPT What is true about the set?（）

A、The DESCRIBE DEPT statement displays the structure of the DEPT table.  B、The ROLLBACK statement frees the storage space occupied by the DEPT table.  C、The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist.  D、The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.  

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第9题
[单选题] Evaluate the set of SQL statements: CREATE TABLE dept (deptno NUMBER(2), dname VARCNAR2(14), 1oc VARCNAR2 (13)); ROLLBACK; DESCRIBE DEPT What is true about the set?（）

A、The DESCRIBE DEPT statement displays the structure of the DEPT table.  B、The ROLLBACK statement frees the storage space occupies by the DEPT table.  C、The DESCRIBE DEPT statement returns an error ORA-04043: object DEPT does not exist.  D、The DESCRIBE DEPT statement displays the structure of the DEPT table only if there is a COMMIT statement introduced before the ROLLBACK statement.  

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第10题
[单选题] When arriving at the customers location， two different users describe the problem， and from their description it seems to be two separate problems. Which of the following is an appropriate step to take？（）

A、Ignore both of them and decide what the real problem is.  B、Set up a separate call for each problem.  C、Have them duplicate the problem at the device.  D、Ask a third person and see if the problem is the same thing.  

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