canine protected occlusion

A .  Preventing browsers from opening network sockets inlistening state. B .  Preventingbuffer overflows. C .  Preventingusers from entering unencrypted passwords D .  Preventing browsers from acting as client to webservers.

A . The standby database is protected against write operations.  B . The primary database is protected against write operations.  C . The primary database is protected against data loss and data divergence.  D . The standby database is protected against data loss and data divergence.&e

A . 启用TC保护功能后，在单位时间内，MSTP进程处理TC类型BPDU报文的次数可配置 B . 启用TC保护功能避免攻击者伪造拓扑变化BPDU报文恶意攻击交换设备造成的频繁的删除MAC地址表项和ARP表项，从而达到保护交换设备的目的 C . 执行命令stp tc-protection enable，使能MSTP进程对TC类型BPDU报文的保护功能 D . 缺省情况下，交换设备的TC保护功能处于未使能状态

A．A.The PTN equipment supports 1+1 unidirectional path protection and 1:1 bidirectional path protection. B．B.1:1 bidirectional path protection supports return mode and non-return mod C．C.The protection delay can be configured to be 0-10 s (with the step length of 100 ms). D．D.In the return mode, WTR can be configure to be 1-12 min (with the step length of 1 min).

A.PW dual-homing protection is usually used for protection between networks; tunnel protection is usually used to protect the inside of PTN network; B.Neither PW dual-homing nor tunnel 1:1 switching needs APS negotiation. C.PW dual-homing switching has one more trigger condition -- CSF than tunnel protection switching. D.PW dual-homing has less OAM detection points than tunnel protection, which saves device resources. 此题为多项选择题。

A．保护方法 B．私有方法 C．公有方法 D．构造方法

A.publiC和publiC B.publiC和proteCted C.proteCted和publiC D.proteCted和proteCted

是 否

For application of PTN devices,()protocol of path protection and SNC protection should be the same.Only bidirectional protection switching needs()protocol.APS