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26.
Which server role resolves hostnames to IP addresses?
- A.DNS
- B.Routing and Remote Access
- C.DHCP
- D.NTP
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| DNS servers resolve device and domain names (website names) to IP addresses, and vice versa. |
27.
Which of the following are the software stubs that allow devices to communicate with the
operating system?
- A.Drivers
- B.Patches
- C.Shims
- D.Manifests
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| Device drivers are the software stubs that allow devices to communicate with the operating system. Drivers are used for interacting with printers, monitors, network cards, sound cards, and just about every type of hardware attached to the server. |
28.
Which of the following describes the average length of time it takes a vendor to repair a
device or component?
- A.MTBF
- B.MMTR
- C.MTTR
- D.MTR
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| One of the metrics that is used in planning both SLAs and IT operations in general is mean time to repair (MTTR). This value describes the average length of time it takes a vendor to repair a device or component. |
29.
Which of the following represents aspects of the workload the resource is undergoing?
- A.Counters
- B.Alerts
- C.Metrics
- D.Markers
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| When monitoring resources, you select performance counters that represent aspects of the workload the resource is undergoing. |
30.
Which of the following is not one of the four major resources?
- A.Memory
- B.CPU
- C.Disk
- D.Pagefile
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| The four are disk, CPU, memory, and NIC or network. |
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