1. When we talk about 'security vulnerability' of ECS server, we are referring to: (the number of correct answers: 3)(Select 3answers)

A) OS vulnerability
B) Hardware fault
C) Application Vulnerability
D) Hypervisor Vulnerability
E) Data Center Serviceability


2. . Inside cloud, hypervisor vulnerability could cause the following possible consequences: (the number of correct answers: 3)(Select 3answers)

A) User service become unavailable
B) One client host can access another client's data
C) Hacker can access host server directly
D) Incorrect client resource usage calculating



3. In the ISO/OSI 7 layers networking model, which of the following functions are provided for the 'network layer'? (the number of correct answers: 2)(Select 2answers)

A) congestion handling
B) Routing
C) end to end reliable and transparent data transition
D) physical connection



4. If Server Guard (product provided by Alibaba Cloud) report some brute force password hacking attacks, the reporting information will includeï¼? (the number of correct answers: 3)(Select 3answers)

A) Attack source IP
B) Attack initiated time
C) Tools attacker used
D) Attack type
E) Physical location of attacker


5. Which of the following risks are considered as common network security risk? (the number of correct answers: 2)(Select 2answers)

A) Physical Fiber Channel Cable is broken
B) Data under transferring is being sniffed
C) Massive traffic flood attack
D) Software version is not up to date