Practice Free H12-621_V1.0-ENU Exam Online Questions
Question #11
Which activities help strengthen OS-level security? (Select all that apply)
- A . Regular patching
- B . Enabling SELinux
- C . Using default passwords
- D . Auditing system logs
- E . Opening unused ports
Correct Answer: ABD
Question #12
The awk command can perform arithmetic operations on data fields.
- A . True
- B . False
Correct Answer: A
Question #13
Which Ansible concept allows tasks to run only when notified by changes?
- A . Roles
- B . Handlers
- C . Inventories
- D . Modules
Correct Answer: B
Question #14
Which measures improve web service security on openEuler? (Select all that apply)
- A . Enabling HTTPS
- B . Disabling directory listing
- C . Running services as root
- D . Applying security patches
- E . Allowing unrestricted uploads
Correct Answer: ABD
Question #15
The command used to view system memory usage is ______.
- A . top
- B . free
- C . ps
- D . vmstat
Correct Answer: B
Question #16
Which cluster characteristic minimizes service downtime during node failures?
- A . Scalability
- B . Load balancing
- C . High availability
- D . Resource isolation
Correct Answer: C
Question #17
Which storage approach allows multiple servers to access the same data simultaneously?
- A . Local storage
- B . Temporary storage
- C . Shared storage
- D . Removable storage
Correct Answer: C
Question #18
Which benefits does proactive monitoring provide? (Select all that apply)
- A . Early issue detection
- B . Reduced downtime
- C . Automatic hardware upgrades
- D . Capacity planning insights
- E . Guaranteed fault prevention
Correct Answer: ABD
Question #19
The command commonly used to filter output based on a matching pattern is ______.
- A . awk
- B . grep
- C . sed
- D . sort
Correct Answer: B
Question #20
Which characteristics describe distributed storage systems? (Select all that apply)
- A . High scalability
- B . Data redundancy
- C . Single point of failure
- D . Fault tolerance
- E . Local-only access
Correct Answer: ABD