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Anna007 [38]
3 years ago
11

During a night flight, you observe a steady red light and a flashing red light ahead and at the same altitude. What is the gener

al direction of movement of the other aircraft?
a) The other aircraft is crossing to the left
b) The other aircraft is crossing to the right
c) The other aircraft is approaching head-on
Computers and Technology
1 answer:
grin007 [14]3 years ago
8 0

Answer:

a) The other aircraft is crossing to the left

Explanation: An aircraft is any vehicle such as an airplane that is able to fly in the air through the support of the air. Aircrafts usually overcome the force of gravity fr it to be able to sustain it's long movement in the air. An aircraft can either be an airplane or a balloon etc.

One of the traffic signals of the air flight system is that if an aircraft is flashing and steady red light ahead at the same altitude,it means the airplane is crossing left.

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In reference to operating systems, what is spooling? what does it stand for? chegg
blondinia [14]

Answer:

Spooling is a process in which data is temporarily held to be used and executed by a device, program or the system. Data is sent to and stored in memory or other volatile storage until the program or computer requests it for execution. "Spool" is technically an acronym for simultaneous peripheral operations online.

8 0
2 years ago
Ellen is expecting to get a 3% raise next year. She enters .03 in cell D2 so that she can predict her monthly income for the nex
Korolek [52]

Answer: F4

Explanation:

Absolute reference means that we can use a formula for a cell in a Excel and that formula for that particular cell will not be changed even if we copy or drag that formula to some part of the cell.

Excel offers us with the solution of applying formulas to different part of the cells which are indicated by the $ sign. So as in the question Ellen as she is expecting a 3% raise net year in her monthly column, So she can use absolute reference. She enters .03 which is 3 divided by 100 in the monthly income column. So in that column she has to type = for the formula to begin. Then the formula which is .03 and followed by F4 which is used to make the cell D2 absolute reference.

So next time upon referencing cell D2, we would get the value according to the formula.

3 0
3 years ago
In a batch operating system, three jobs are submitted for execution. Each job involves an I/O activity, CPU time and another I/O
Ilia_Sergeevich [38]

Answer:

a) CPU utilization for uniprogramming system = 18.2%

b) CPU utilization for multiprogramming system = 41.379%

Explanation:

IO time = total time – CPU time

For JOB 1  

CPU time = 3ms ,

total time= 23ms

IO time = 23-3 = 20ms ,

For JOB 2

CPU time =5ms

total = 29ms

IO time = 29-5 = 24ms  

For JOB 3  

CPU time = 4ms

total = 14ms

IO time = 14-10 =10ms  

1.) In uniprogramming system, operations are performed sequentially

CPU utilization=total CPU time / total real time

CPU utilization =(3+5+4) / (23+29+14)

CPU utilization =0.182 or 18.2%

2) In multiprogramming system, jobs wait for the CPU to get free while performing IO operations concurrently

steps followed by the os

1. IO for 1st job                           at 0ms

2. IO for 2nd job                          at 0ms

3. IO for 3rd job                          at 0ms

4. CPU time for 3rd job              at 5ms

5. Next IO job for 3rd job           at 9ms END at 14ms

6. CPU time for 1st job              at 9ms

7. Next IO job for 1st job           at 14ms END at 23ms

8. CPU time for 2nd job             at 14ms

9. Next IO job for 2nd job          at 15ms END at 29ms

CPU time is 3+5+4 =12ms

Total execution time = 29ms

CPU utilization = 12*100/29= 41.379%

5 0
2 years ago
Matts has finished running some security automation scripts on three newly deployed Linux servers. After applying intrusion dete
gizmo_the_mogwai [7]

Answer: CPU

Explanation:

The management dashboard refers to the tool that's used in the presentation of the vital k management KPIs in a single place, which is efficiently managed in order to make faster and better decisions.

Based on the information given, after the application of intrusion detection, virus, and malware protection on the Linux images, he will notices an increase in CPU on his server management dashboard.

Therefore, the correct option is C.

5 0
2 years ago
Which of the following technique is well suited to support very large address space, e.g. 64-bit address space? Select one: a. C
algol13

Answer:

Inverted page tables

Explanation:

Inverted page tables are indeed the ones used during broad address space, including such 64-bit addresses.

8 0
3 years ago
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