131.Which naming method uses the tnsnames.ora file to store the connect descriptor used by the clien
2016-08-03 18:13
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131.Which naming method uses the tnsnames.ora file to store the connect descriptor used by the client
while connecting to the database instance from a remote machine?
A.host naming method
B.local naming method
C.external naming method
D.directory naming method
答案:B
解析:
这里是说本地命名方法的
本地命名
命名方法 –oracle net支持多种解析连接信息的方法
1. 简便连接命名:使用TCP/IP连接字符串
2. 默认情况下是启用的
3. 不需要进行客户端配置
4. 仅支持TCP/IP(无SSL)
5. 不支持高级连接选项,如:
a.连接时故障转移
b.源路由
c.负载平衡
d.Connect hr/hr@db.us.oracle.com:1521/dba11g
本地命名:使用本地配置文件
1. 需要客户机名称解析文件
2. 支持所有的oracle net协议
3. 支持高级连接选项
4. conn hr/hr@orcl --必须配置本地的tnsname.ora
目录命名:使用服务LDAP的集中式目录服务器
1. 需要加载了oracle net名称解析信息的LDAP
2. 支持所有的oracle net协议
3. 支持高级连接选项
外部命名:使用受支持的非oracle命名服务
1. 使用受支持的非oracle命名服务
2. 包括
a.网络信息服务( NIS)外部命名
b.分布式计算环境(DCE) 单元目录服务( CDS)
while connecting to the database instance from a remote machine?
A.host naming method
B.local naming method
C.external naming method
D.directory naming method
答案:B
解析:
这里是说本地命名方法的
本地命名
命名方法 –oracle net支持多种解析连接信息的方法
1. 简便连接命名:使用TCP/IP连接字符串
2. 默认情况下是启用的
3. 不需要进行客户端配置
4. 仅支持TCP/IP(无SSL)
5. 不支持高级连接选项,如:
a.连接时故障转移
b.源路由
c.负载平衡
d.Connect hr/hr@db.us.oracle.com:1521/dba11g
本地命名:使用本地配置文件
1. 需要客户机名称解析文件
2. 支持所有的oracle net协议
3. 支持高级连接选项
4. conn hr/hr@orcl --必须配置本地的tnsname.ora
目录命名:使用服务LDAP的集中式目录服务器
1. 需要加载了oracle net名称解析信息的LDAP
2. 支持所有的oracle net协议
3. 支持高级连接选项
外部命名:使用受支持的非oracle命名服务
1. 使用受支持的非oracle命名服务
2. 包括
a.网络信息服务( NIS)外部命名
b.分布式计算环境(DCE) 单元目录服务( CDS)
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