Downtime calculation for 99% reliability: When the carrier is 99% reliable, then it means that it is 1% unreliable. Formula for computing the downtime is given below: D o w n t i m e = ( N u m b e r o f d a y s i n a y e a r × U n r e l i a b l e p e r c e n t a g e ) (1) Substitute “1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1)

Question

Want to see the full answer?

Answer 1

Expert Solution & Answer

Chapter 12, Problem 7E

Explanation of Solution

Downtime calculation for 99% reliability:

When the carrier is 99% reliable, then it means that it is 1% unreliable.

Formula for computing the downtime is given below:

Downtime = (Number of days in a year × Unreliable percentage) (1)

Substitute “1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1)

Explanation of Solution

Downtime calculation for 99.5% reliability:

When the carrier is 99.5% reliable, then it means that it is 0.5% unreliable.

Substitute “0.5%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.5%)=365×0.5100=1.825

The number of downtime is 1.825 days.

Note: 1 day = 24 hours.

Number of downtime hours= (1.825 ×24)=43.8

Therefore, the number of downtime hours is “43.8” hours.

Downtime calculation for 99.9% reliability:

When the carrier is 99.9% reliable, then it means that it is 0.1% unreliable.

Substitute “0.1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.1%)=365×0.1100=0.365

The number of downtime is 0

Explanation of Solution

Minimum reliability:

Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible.

The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

5. Draw the value of the Q and -Q outputs for a positive edge-triggered J K flip-flop in the timing diagram below. Assume that Q is initially a '0' and ~Q is initially a '1': CLK 0 10 ° 1 J Q CLK K а

For the timing diagram shown in figure below, draw the output Q for a rising edge-triggered D- Flip-Flop with active high Reset. Clock Reset 12 t ta

Answer only 6 questions for 12 mark every question have 2 mark 1- Explain advantages and disadvantage The Local and Remote Network Segments with detail? 2- What are the Criteria for Dividing the Local Network list it with explain? 3- What is the categories are used to classify types of personal data? 4- When a host is configured with DHCP, it will attempt to obtain its IPv4 address, subnet mask, default gateway, and DNS server from DHCP. What operations does this protocol take? 5- Compare IPv4 and IPv6 Addressing? 6- Which technique allows IPv4 and IPv6 to coexist on the same network? 7- TCP/IP vs OSI Model what difference between them? 8- Explain the Email Protocols (SMTP), (POP3) and (IMAP4)? 9- Define the following concept (Socket, Encapsulation, Ethernet, frame). 10- There are four primary cloud models or type explain them? 11- What are Difference and advantages between "cloud computing" and "virtualization"? 12- When a threat actor gains access to the network, four types of threat…

Answer 2

Expert Solution & Answer

Chapter 12, Problem 7E

Explanation of Solution

Downtime calculation for 99% reliability:

When the carrier is 99% reliable, then it means that it is 1% unreliable.

Formula for computing the downtime is given below:

Downtime = (Number of days in a year × Unreliable percentage) (1)

Substitute “1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1)

Explanation of Solution

Downtime calculation for 99.5% reliability:

When the carrier is 99.5% reliable, then it means that it is 0.5% unreliable.

Substitute “0.5%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.5%)=365×0.5100=1.825

The number of downtime is 1.825 days.

Note: 1 day = 24 hours.

Number of downtime hours= (1.825 ×24)=43.8

Therefore, the number of downtime hours is “43.8” hours.

Downtime calculation for 99.9% reliability:

When the carrier is 99.9% reliable, then it means that it is 0.1% unreliable.

Substitute “0.1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.1%)=365×0.1100=0.365

The number of downtime is 0

Explanation of Solution

Minimum reliability:

Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible.

The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 3

Expert Solution & Answer

Chapter 12, Problem 7E

Explanation of Solution

Downtime calculation for 99% reliability:

When the carrier is 99% reliable, then it means that it is 1% unreliable.

Formula for computing the downtime is given below:

Downtime = (Number of days in a year × Unreliable percentage) (1)

Substitute “1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1)

Explanation of Solution

Downtime calculation for 99.5% reliability:

When the carrier is 99.5% reliable, then it means that it is 0.5% unreliable.

Substitute “0.5%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.5%)=365×0.5100=1.825

The number of downtime is 1.825 days.

Note: 1 day = 24 hours.

Number of downtime hours= (1.825 ×24)=43.8

Therefore, the number of downtime hours is “43.8” hours.

Downtime calculation for 99.9% reliability:

When the carrier is 99.9% reliable, then it means that it is 0.1% unreliable.

Substitute “0.1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.1%)=365×0.1100=0.365

The number of downtime is 0

Explanation of Solution

Minimum reliability:

Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible.

The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Expert Solution & Answer

Chapter 12, Problem 7E

Explanation of Solution

Downtime calculation for 99% reliability:

When the carrier is 99% reliable, then it means that it is 1% unreliable.

Formula for computing the downtime is given below:

Downtime = (Number of days in a year × Unreliable percentage) (1)

Substitute “1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1)

Explanation of Solution

Downtime calculation for 99.5% reliability:

When the carrier is 99.5% reliable, then it means that it is 0.5% unreliable.

Substitute “0.5%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.5%)=365×0.5100=1.825

The number of downtime is 1.825 days.

Note: 1 day = 24 hours.

Number of downtime hours= (1.825 ×24)=43.8

Therefore, the number of downtime hours is “43.8” hours.

Downtime calculation for 99.9% reliability:

When the carrier is 99.9% reliable, then it means that it is 0.1% unreliable.

Substitute “0.1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.1%)=365×0.1100=0.365

The number of downtime is 0

Explanation of Solution

Minimum reliability:

Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible.

The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Expert Solution & Answer

Answer 6

Expert Solution & Answer

Answer 7

Chapter 12, Problem 7E

Explanation of Solution

Downtime calculation for 99% reliability:

When the carrier is 99% reliable, then it means that it is 1% unreliable.

Formula for computing the downtime is given below:

Downtime = (Number of days in a year × Unreliable percentage) (1)

Substitute “1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1)

Explanation of Solution

Downtime calculation for 99.5% reliability:

When the carrier is 99.5% reliable, then it means that it is 0.5% unreliable.

Substitute “0.5%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.5%)=365×0.5100=1.825

The number of downtime is 1.825 days.

Note: 1 day = 24 hours.

Number of downtime hours= (1.825 ×24)=43.8

Therefore, the number of downtime hours is “43.8” hours.

Downtime calculation for 99.9% reliability:

When the carrier is 99.9% reliable, then it means that it is 0.1% unreliable.

Substitute “0.1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.1%)=365×0.1100=0.365

The number of downtime is 0

Explanation of Solution

Minimum reliability:

Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible.

The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...

Answer 8

Chapter 12, Problem 7E

Explanation of Solution

Downtime calculation for 99% reliability:

When the carrier is 99% reliable, then it means that it is 1% unreliable.

Formula for computing the downtime is given below:

Downtime = (Number of days in a year × Unreliable percentage) (1)

Substitute “1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1)

Answer 9

Chapter 12, Problem 7E

Explanation of Solution

Downtime calculation for 99% reliability:

When the carrier is 99% reliable, then it means that it is 1% unreliable.

Formula for computing the downtime is given below:

Downtime = (Number of days in a year × Unreliable percentage) (1)

Substitute “1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1)

Answer 10

Explanation of Solution

Downtime calculation for 99.5% reliability:

When the carrier is 99.5% reliable, then it means that it is 0.5% unreliable.

Substitute “0.5%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.5%)=365×0.5100=1.825

The number of downtime is 1.825 days.

Note: 1 day = 24 hours.

Number of downtime hours= (1.825 ×24)=43.8

Therefore, the number of downtime hours is “43.8” hours.

Downtime calculation for 99.9% reliability:

When the carrier is 99.9% reliable, then it means that it is 0.1% unreliable.

Substitute “0.1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.1%)=365×0.1100=0.365

The number of downtime is 0

Answer 11

Explanation of Solution

Downtime calculation for 99.5% reliability:

When the carrier is 99.5% reliable, then it means that it is 0.5% unreliable.

Substitute “0.5%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.5%)=365×0.5100=1.825

The number of downtime is 1.825 days.

Note: 1 day = 24 hours.

Number of downtime hours= (1.825 ×24)=43.8

Therefore, the number of downtime hours is “43.8” hours.

Downtime calculation for 99.9% reliability:

When the carrier is 99.9% reliable, then it means that it is 0.1% unreliable.

Substitute “0.1%” for “Unreliable percentage” and “365” for “Number of days in a year” in the Equation (1).

Downtime = (365 ×0.1%)=365×0.1100=0.365

The number of downtime is 0

Answer 12

Explanation of Solution

Minimum reliability:

Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible.

The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...

Answer 13

Explanation of Solution

Minimum reliability:

Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible.

The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...

Answer 14

Expert Solution & Answer

Answer 15

Expert Solution & Answer

Answer 16

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 17

Ch. 12 - Prob. 1Q Ch. 12 - Prob. 2Q Ch. 12 - Prob. 3Q Ch. 12 - Prob. 4Q Ch. 12 - Prob. 5Q Ch. 12 - Prob. 6Q Ch. 12 - Prob. 7Q Ch. 12 - Prob. 8Q Ch. 12 - Prob. 9Q Ch. 12 - Prob. 10Q

Explanation of Solution

Explanation of Solution

Explanation of Solution

Minimum reliability: Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible. The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...

Want to see the full answer?

Chapter 12 Solutions

Minimum reliability:

Most firms need the reliability of a common carrier to be “100%”. However, this is not a feasible.

The closest reliability percentage most firms consider would be “99.99%” or “99.9%”. Since, their downtime of these reliabilities is less than 9 hours...