What OC level is primarily used as a regional ISP backbone, and occasionally by very large hospitals, universities, or other major enterprises??
A. ?OC-3
B. ?OC-12
C. ?OC-48
D. ?OC-96
Answer: C
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Operate with limited resources, adapt to hardware evolution, support a wide range of applications, support a diverse set of platforms, and be robust are goals for __________ .
A) ?TinyOs ? B) ?eCos ? C) ?DSRs ? D) ?ISRs
Consider a relation s over the attributes A and B with the following characteristics:
• 5,000 tuples with 10 tuples per page • A 2-level B+ tree index on attribute A with up to 100 index entries per page • Attribute A is a candidate key of s The values that the attribute A takes in relation s are uniformly distributed in the range 1 to 100,000. (a) Assuming that the aforesaid index on A is unclustered, estimate the number of disk accesses needed to compute the range query ?A>1000 ? A<6000(s). (b) What would be the cost if the above index were clustered?
You have been hired to help a small company set up its Windows network. It has 20 users, and it has no plans to expand. What version of Windows Server 2016 would you recommend?
A. Windows Server 2016 Datacenter B. Windows Server 2016 Standard C. Windows Server 2016 Essentials D. Windows Server 2016 Datacenter (Desktop Experience)
The uncontrolled development of more and more virtual machines.
A. VM sprawl B. VM escaping C. VM D. SpiNet