Which two statements are true about IS -IS routing?（）A、Based on the default timers, OSPF d etects a failure faster than IS - IS does.B、OSPF default timers permit more tuning than IS - IS does.C、IS - IS is more efficient than OSPF in the use of CPU resources.D、OSPF is more scalable than IS - IS because of its ability to identify normal, stub, an d NSSA areas.E、IS - IS and OSPF are both Open Standard, link - state routing protocols which support VLSM.
Which two statements are true about IS -IS routing?（）
- A、Based on the default timers, OSPF d etects a failure faster than IS - IS does.
- B、OSPF default timers permit more tuning than IS - IS does.
- C、IS - IS is more efficient than OSPF in the use of CPU resources.
- D、OSPF is more scalable than IS - IS because of its ability to identify normal, stub, an d NSSA areas.
- E、IS - IS and OSPF are both Open Standard, link - state routing protocols which support VLSM.
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