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Indentify two advantages of usin

题目

Indentify two advantages of using recovery catalog instead of the control file of the database in RecoveryManager (RMAN).（）(Choose two.)

  • A、You can use RMAN stored scripts
  • B、Recovery is faster if data is stored in catalog in addition to the control file
  • C、You can store backup information of all registered databases in one place
  • D、Database backups are automatically deleted when they are older than the specified time period
参考答案和解析
正确答案:A,C
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相似问题和答案

第1题：

Indentify two advantages of using recovery catalog instead of the control file of the database in RecoveryManager (RMAN).()(Choose two.)

A. You can use RMAN stored scripts

B. Recovery is faster if data is stored in catalog in addition to the control file

C. You can store backup information of all registered databases in one place

D. Database backups are automatically deleted when they are older than the specified time period


参考答案：A, C

第2题：

What are the two primary advantages of content networking solutions? ()

A.Optimized processing of error notification

B.Optimized processing of bandwidth requests

C.Optimized processing of content delivery

D.Optimized processing of content requests


参考答案：C, D

第3题：

(b) Explain the advantages and the disadvantages of:

(i) the face to face interview between two people; (6 marks)


正确答案：
(b) (i) The face to face interview is the most common form. of interview. In this situation the candidate is interviewed by a single representative of the employing organisation.
The advantages of such interviews are that they establish an understanding between the participants, are cost effective for the organisation (only one member of the organisation’s staff is involved) and, because of the more personal nature, ensure that candidates feel comfortable.
The disadvantages are that the selection interview relies on the views and impression of a single interviewer that can be both subjective and biased. In addition, the interviewer may be selective in questioning and it is easier for the candidate to hide weaknesses or lack of ability.

第4题：

PAL制的色度信号可统一表示为（）

  • A、Usinωt+Vcosωt
  • B、Usinωt-Vcosωt
  • C、Usinωt±Vcosωt
  • D、Usinωt×Vcosωt

正确答案:C

第5题：

What are two advantages of BGP route aggregation?（） (Choose two.)

  • A、It can reduce routing table size.
  • B、It allows for optimal route selection.
  • C、It can reduce the number of routing updates.
  • D、It always shortens the attribute list for the aggregated route.

正确答案:A,C

第6题：

What are two advantages of BGP route aggregation?() (Choose two.)

A. It can reduce routing table size.

B. It allows for optimal route selection.

C. It can reduce the number of routing updates.

D. It always shortens the attribute list for the aggregated route.


参考答案：A, C

第7题：

若某周期信号的一次谐波分量为5sin10^3tV，则它的三次谐波分量可表示为（　　）。

A． Usin3×10^3t，U＞5V
B． Usin3×10^3t，U＜5V
C． Usin106t，U＞5V
D． Usin106t，U＜5V

答案：B
解析：
根据周期信号的傅里叶级数的收敛性，各次谐波的幅值是不相等的，谐波频率越高其幅值越小。本题中一次谐波分量为5sin10^3tV，即幅值U1＝5V，角频率为ω1＝10^3。故三次谐波幅值U3＜5V，其频率为一次谐波分量频率的3倍，即3ω1＝3×10^3。所以正确选项为B。

第8题：

Indentify two advantages of using recovery catalog instead of the control file of the database in Recovery Manager (RMAN)?()

A. You can use RMAN stored scripts

B. Recovery is faster if data is stored in catalog in addition to the control file

C. You can store backup information of all registered databases in one place

D. Database backups are automatically deleted when they are older than the specified time period


参考答案：A, C

第9题：

u=Usin（ωt+φ）中，其中U为（）值。


正确答案:峰

第10题：

Which two of these are advantages of placing the VPN device in the DMZ on the firewall?（）

  • A、fewer devices to manage
  • B、moderate-to-high scalability
  • C、stateful inspection of decrypted VPN traffic
  • D、increased bandwidth with additional interfaces
  • E、decreased complexity as traffic is filtered from the firewall

正确答案:B,C

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