Using a bitmap structure to manage database object space has several benefits over using freelist structures. Which three are benefits of managing space using automatic-segment-space managed objects？（）
A . It readily responds to dynamic changes for concurrent access.
B . It improves performance and space utilization in a multiple-instance environment.
C . It requires fewer space related options then freelist managed structures.
D . It improves performance for SYSTEM tablespaces where a high degree of concurrency is required.
相似题目
-
Which routing protocol supports a flexible area structure using routing levels one and two?（）
A . OSPF
B . EIGRP
C . IS-IS
D . BGP
-
The athwartship hull structural members of a ship are（）.
A . stringers
B . girders
C . breasthooks
D . deck beam
-
You creating a report that will run in both character mode and bitmapped environments. You include some printer codes in your report. What will happen when you run the report in bitmapped mode? （）
A . The report will not execute.
B . The report will only accept destination type of previewer or printer.
C . Printer codes will be ignored.
D . Only the printer codes that apply will be processes.
-
Which routing protocol supports a flexible area structure using routing levels one and two？（）
A . OSPF
B . EIGRP
C . IS-IS
D . BGP
-
The procedure of strengthening damaged structures on a ship by using wood or steel is called（）.
A . bracing
B . battening
C . blocking
D . shoring
-
Which of the following may better check students“ ability of using a grammatical structure?
A . Having them work out the rule.
B . Having them give some examples.
C . Having them explain the meaning.
D . Having them explain the structure.
-
Which two statements are true about a bitmap index？ （）
A . It is recommended for the columns that have unique values.
B . It can be converted to a B-tree index by using the ALTER INDEX command.
C . It has a bitmap segment for each distinct value in the key column， containing a string of bits in which each bit represents the presence or absence of a key column value.
D . Updating the key column locks the whole bitmap segment that contains the bit for the key value to be updated.
-
Don’t（）secure websites using public Wi-Fi.
A . access
B . acess
C . process
D . accesse
-
Why does performance degrade when many UPDATE， INSERT， or DELETE statements are issued on a tablethat has an associated Bitmap index（）
A . The DML operations re-create the Bitmap index blocks.
B . The Bitmap index is rebuilt automatically after a DML operation.
C . The smallest amount of a bitmap that can be locked is a bitmap segment.
D . Additional time is taken to remove NULL values from the Bitmap index after a DML operation.
-
Which of the following may better check students' ability of using a grammatical structure?
A . Having them work out the rule
B . Having them give some examples
C . Having them explain the meaning
D . Having them explain the structure
-
Your network has a mixture of Fast Ethernet and Gigabit Ethernet links. What needs t o be done to ensure optimal data routing when using OSPF?（）
A . Nothing. OSPF will determine the most optimal path for routing data by default.
B . Adjust the hello and dead timers for more rapid detection of link failures.
C . Increase the reference - bandw idth used to calculate the interface default metrics, on all routers in your network.
D . Set the priority values on every broadcast interface to ensure that the designated and backup designated routers are the routers with the most processor and memory resources.
-
（）is not a longitudinal structural member.
A . sideshell
B . bottom shell plating
C . inner bottom plating
D . transverse bulkhead
-
What does “A and B” structure indicate?
-
The structure of a resume includes
A.Work Experience
B.Educational Background
C.Career Objective
D.Personal Information
-
A company structure chart will show the jobs, listed by job title, the reporting structure, and company management.
-
Which of the following sentences is a parallel structure?
-
下列程序有错，请改错并说明理由。#include <iostream>using namespace std;template <class T>class A{private: T x,y,s;public: A(T a,T b) {x=a,y=b;s=x+y;} void show() {cout<<\x+y=\<<s<<endl; }};void main(){ A add(10,100); add.show();}______
-
_______ structure is also called product structure because it is based on a certain product or program.
-
A continuous watertight bulkhead on a ship may also be a/an （).A.structural bulkheadB.exte
A continuous watertight bulkhead on a ship may also be a/an ().
A.structural bulkhead
B.exterior bulkhead
C.centerline bulkhead
D.joiner bulkhead
-
Pre－sequences are a fundamental unit of conversational structure.（)
Pre-sequences are a fundamental unit of conversational structure.()
-
About 1+1 T-MPLS path protection structure, which of the following are correct?
A.nIn 1+1 T-MPLS path protection structure, each working connection has a specific protection connection; working connection and protection connection are bridged at source end of protecting domain.
B.nIn 1+1 T-MPLS path protection structure, if a unidirectional fault (transmission direction from node A to Z) occurs to working connection, it will be detected at sink node Z of protecting domain and then node Z selector will switch to protection connectio
C.n1+1 T-MPLS path protection is of unidirectional switching type -- that is to say, only the affected end needs to switch to the protection path and selectors at the two ends are relatively independent.
D.nIn 1+1 T-MPLS path protection structure, to avoid single-point fault, working connection and protection connection should run along isolated routes.
此题为多项选择题。
-
B. Rewrite the following sentences after the model, using the structure “instead of”. 1. We should focus on high-risk groups rather than check the whole population.
-
有如下程序： inClude using namespaCe std； Class Point{ publiC： statiC int number； publiC： Point（）t．number++；} ~Point（）{number--；} }； ， int P0int：：number=0； int main（）{ Point *ptr： Point A，B； Point*ptr_point=new Point[3]； ptr=ptr_point；’ } Point C； Cout$amp;A.3
B.4
C.6
D.7
-
System analysis is traditionally done top-down using structured analysis based on ____. Object-oriented analysis focuses on creation of models. The three types of the analysis model are __请作答此选项__. Th
A．functionmodel,classmodelandstatemodel
B． classmodel,interactionmodelandstatemodel
C． classmodel,interactionmodelandsequencemodel
D． functionmodel,interactionmodelandstatemodel
