更多"[单选题]版本升级失败后应该"的相关试题:
[单选题]版本升级失败后应该
A.先恢复业务
B.先查找原因
C.查出原因为止
D.与客户协商延长操作窗口期
[多选题]当PDSN版本升级失败时，恢复到原来运行的版本的步骤（）。
If PDSN version upgrade fails, to recover to the previous version, we need to perform the following steps: ( ).
A.先拔出升级后的主用MPU。
Remove the master MPU after upgrade.
B.将升级之前拔出的MPU备板插入
Install the slave MPU board that has been removed before upgrade.
C.然后对所有其他单板进行复位，即可恢复PDSN老版本。
Reset all other boards to recover to the previous PDSN version.
D.系统启动后，测试基本业务成功。
After the system boots up, test whether basic services are successfully.
[多选题]当升级完成后出现下列情况，可认为升级失败，需要回退版本：（）。
If the following situations occur after upgrade, we can confirm that the upgrade fails and we need to recover the version: ( ).
A.个别用户无法接入网络
Some users can not access the network.
B.版本升级失败，单板无法正常工作。
Version upgrade fails, and the board cannot run normally.
C.整个版本升级完后，经测试，业务功能不能正常实现，必须要求回退。
After the entire version upgrade is completed, according to service tests, service functions cannot be implemented, so the upgrade must be rolled back.
D.与所内联系确认回退
The R&D center confirms that rollback is necessary.
[判断题]版本升级应该掌握分寸，不可一意地分析问题原因而忽视版本回退工作导致重大事故发生
A.正确
B.错误
[判断题]GYK数据版本升级后首次出车需进行GYK数据版本号的确认。
A.正确
B.错误
[判断题]业务系统版本升级后，应验证业务系统运行正常，并保留旧版本的文件
A.正确
B.错误
