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1z0-051 Exam,
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4. Which two statements are true regarding single row functions? (Choose two.)
A. They a ccept only a single argument.
B. They c an be nested only to two levels.
C. Arguments can only be column values or constants.
D. They a lways return a single result row for every row of a queried table.
E. They c an return a data type   value different from the one that is referenced.
Answer: DE
5. Which SQL statements would display the value 1890.55 as $1,890.55? (Choose three .)
A. SELECT TO_CHAR(1890.55,’$0G000D00′)
FROM DUAL;
B. SELECT TO_CHAR(1890.55,’$9,999V99′)
FROM DUAL;
C. SELECT TO_CHAR(1890.55,’$99,999D99′)
FROM DUAL;
D. SELECT TO_CHAR(1890.55,’$99G999D00′)
FROM DUAL;
E. SELECT TO_CHAR(1890.55,’$99G999D99′)
FROM DUAL;
Answer: ADE
 

1z0-051 Exam,
Killtest offers free demo for 1z0-051 Exam. You can check out the interface, question quality and usability of our practice exams before you decide to buy it. We are the only onesite can offer demo for almost all products.
 

4. Which two statements are true regarding single row functions? (Choose two.)
A. They a ccept only a single argument.
B. They c an be nested only to two levels.
C. Arguments can only be column values or constants.
D. They a lways return a single result row for every row of a queried table.
E. They c an return a data type   value different from the one that is referenced.
Answer: DE
5. Which SQL statements would display the value 1890.55 as $1,890.55? (Choose three .)
A. SELECT TO_CHAR(1890.55,’$0G000D00′)
FROM DUAL;
B. SELECT TO_CHAR(1890.55,’$9,999V99′)
FROM DUAL;
C. SELECT TO_CHAR(1890.55,’$99,999D99′)
FROM DUAL;
D. SELECT TO_CHAR(1890.55,’$99G999D00′)
FROM DUAL;
E. SELECT TO_CHAR(1890.55,’$99G999D99′)
FROM DUAL;
Answer: ADE

Windows Server 2008 Applications Infrastructure, Configuring

考試編號: 70-643
所屬認證: MCTS
考試時間: 90分鐘
考試題量: 50-60道
通過分數:700分,總分1000分
考試語言: 英語,法語,德語,日語,西班牙語,中文(簡體),韓語,意大利語,俄語,葡萄牙語(巴西)
考試機構: Prometric,VUE
考試題型: 選擇題,拖圖題
技術種類:Windows Vista
職業方向:開發者
資料費用: http://www.killtest.net/MCTS/70-643.asp
1. Your network consists of a single Active Directory domain. The domain contains a server that runs
Windows Server 2008. The server has Windows SharePoint Services (WSS) installed. You need to
allow users to create distribution lists from a SharePoint site. What should you do on the WSS server?
A.Set the outgoing mail character set to 1200(Unicode).
B.Enable the SharePoint Directory Management Service.
C.Configure the site to accept messages from authenticated users only.
D.Configure the site to use the default Rights Management server in Active Directory Domain Services.
Answer B
2. You install a new server named Server1 that runs Windows Server 2008. The server has the Streaming
Media Services server role installed. You install and activate all Windows Media Services control
protocols. Users connect to Server1 locally and remotely through a firewall. You need to ensure that the
protocol rollover will occur only if the users are accessing Server1 from the Internet. What should you do?
A.Install the Reliable Multicast Protocol on Server1.
B.Install the Quality of Service (QoS) service on the network adapter.
C.Configure the firewall to forward incoming port 1755 traffic to Server1.
D.Use announcements to enable users to access the streaming media.
Answer D
3. You have two servers that run Windows Server 2008 named Server1 and Server2. Both servers have
the Streaming Media Services server role installed. Server2 is a License Clearing House. You publish an
audio file on Server1. The audio file is licensed by Server2. You need to ensure that users are allowed to
use the audio file for only two days. What should you do?
A.On Server1, modify the key ID.
B.On Server1, modify the license key seed.
C.On Server2, modify the license.
D.On Server2, create a new package.
Answer C

Oracle公司簡介與OCP基礎入門

Oracle公司頒布並實施的一項權威的專業技術標準,它是專為認證那些能夠滿足對Oracle核心產品的服務與支持,並具有嫻熟的操作能力與廣泛理論知識的專業人士。一經認證,在行業內的專業資格將被確認,從而使個人或企業更具競爭實力。一次性通過Oracle認證專家計劃包含了兩個目前IT行業十分熱門的認證角色,即數據庫管理員(DBA Atabase Administrator)和應用程序開發員(DEV Application Developer)。

Oracle認證這一方面是由於Oracle產品的特殊性,作為全球最大的數據庫廠商,Oracle在行業中有著不容置疑的地位,而數據庫又是整個IT行業中的關鍵和核心應用,特別是大型企業級數據庫,更是高端中的高端。 Oracle的最新認證體系包括三個層次:Oracle Certified Associate (OCA),Oracle Certified Professional (OCP)和Oracle Certified Master (OCM)

下面是學習OCP的一些基礎入門的方法。

1. 為了打開數據庫,所有的控制文件,每個聯機日誌文件組的至少壹個成員以及

  所有的聯機數據文件都必須存在且同步。

  2. 若任壹控制文件副本受損或丟失,數據庫停在NOMOUNT狀態。否則繼續進行。

  3. 查看所有聯機數據文件的頭部,若任壹文件頭部受損或丟失,則數據庫停留在mount狀態。

  4 .若聯機文件沒有同步,應用重做日誌進行實例恢復.若聯機日誌不可用,則無法打開數據庫。

  若數據文件是通過備份還原的。則需要進行media恢復。

  5.數據庫打開後,任何控制文件副本,SYSTEM表空間或活動undo表空間的數據任壹數據文件受損,

  則實例立即終止。聯機日誌受損時,只要日誌文件組中存在幸存成員,不會造成實例的終止.

  除SYSTEM表空間或活動undo表空間的之外的數據文件受損,ORACLE讓這些受損數據文件脫機,不用導致實例終止。