Q#234 Assume that the RTT between a client and the local DNS server is RTTI, while...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Q#234 Assume that the RTT between a client and the local DNS server is RTTI, while the RTT between the local DNS server and other DNS servers is RTTr. Assume that no DNS server performs caching. a. What is the total response time for the scenario illustrated in Figure (i)? b. What is the total response time for the scenario illustrated in Figure (ii)? C. Assume now that the DNS record for the requested name is cached at the local DNS server. What is the total response time for the two scenarios? Root DNS server Root DNS server Local DNS server dns.nyu.edu TLD DNS server Local DNS server dns.nyu.edu TLD DNS server Requesting host cse.nyu.edu Authoritative DNS server dns.umass.edu gaia.cs.umass.edu Figure (i) Authoritative DNS server Requesting host cse.nyu.edu dns.umass.edu gaia.cs.umass.edu Figure (ii) Q#234 Assume that the RTT between a client and the local DNS server is RTTI, while the RTT between the local DNS server and other DNS servers is RTTr. Assume that no DNS server performs caching. a. What is the total response time for the scenario illustrated in Figure (i)? b. What is the total response time for the scenario illustrated in Figure (ii)? C. Assume now that the DNS record for the requested name is cached at the local DNS server. What is the total response time for the two scenarios? Root DNS server Root DNS server Local DNS server dns.nyu.edu TLD DNS server Local DNS server dns.nyu.edu TLD DNS server Requesting host cse.nyu.edu Authoritative DNS server dns.umass.edu gaia.cs.umass.edu Figure (i) Authoritative DNS server Requesting host cse.nyu.edu dns.umass.edu gaia.cs.umass.edu Figure (ii)
Expert Answer:
Related Book For
Principles Of Information Security
ISBN: 9780357506431
7th Edition
Authors: Michael E. Whitman, Herbert J. Mattord
Posted Date:
Students also viewed these computer network questions
-
It is known that the RTT between the client and the local DNS server is 20 ms, while the RTT is between One DNS server with another DNS server is 60 ms. It assumes that there is no caching yet. What...
-
CANMNMM January of this year. (a) Each item will be held in a record. Describe all the data structures that must refer to these records to implement the required functionality. Describe all the...
-
Mazlin Limited purchased a machine on account on April 2, 2015, at an invoice price of $360,000. On April 4, it paid $2,000 for delivery of the machine. A one-year, $4,000 insurance policy on the...
-
The Athletic Village has done very well the past year, and its stock price is now trading at $82 per share. Management is considering either a 100% stock dividend or a 2-for-1 stock split. Required:...
-
For the plane truss shown in Figure P3-32, determine the nodal displacements, the element forces and stresses, and the support reactions. All elements have E = 70 GPa and A = 3.0 10-4 m2. Verify...
-
Describe the six categories of early warning signs of potential fraud.
-
In the month of June, Jose Heberts Beauty Salon gave 4,000 haircuts, shampoos, and permanents at an average price of $30. During the month, fixed costs were $16,800 and variable costs were 75% of...
-
A fleet of vehicles is comprised of 60 vans, 20 limos, and X sedans. If 10% of all vehicles are limos, how many sedans are in the fleet?
-
Consider the unadjusted trial balance of Burrows Landscaping at December 31, 2023, and the related month-end adjustment data: The following adjustments need to be made on December 31 before the...
-
What impact has virtual communities had in contemporary society? Explain
-
Questions a - e refer to the reaction between 3,5-dimethylhexan-3-ol and hydrogen chloride at 25C TS C TS TS M Inter Reaction coordinate Potential Energy TS3 Inter water Organic P, inorganic P b) In...
-
The specimen shown is made from a 25-mm-diameter cylindrical aluminum rod with two 40-mm-outer-diameter sleeves bonded to the rod as shown. Knowing that (E = 69 GPa) and is subjected to a 4.0 kN...
-
How much work is done when 330 reaction at 295. K? 2CH (1) + 150 (g) grams of CO are formed from this combustion 12CO (g) + 6HO (g) AH = -6276 kJ
-
Task 3: Consider the loaded beam below. A 500 N -3m- -5 m. B 1000 N/m 5 m C The beam is subjected to a point load of 500 N and a distributed load of 1000 N/m, as indicated in the diagram. The weight...
-
Toluene, C6H5CH3. The molar mass of toluene is 92g/mol and its density is 0.867 g/ml. A solution is prepared by dissolving 156 grams of benzene C6H6 (Molar Mass= 78 g/mol) in 2120 ml of toluene....
-
Stephen Marsh operates a successful paint distributor business. The accounts for his business in 2017 showed a profit of $5,450,000 after charging: $380,000 depreciation of building, equipment, and...
-
Write the expression in radical notation. Then evaluate the expression when the result is an integer. 23 -1/2
-
Apply knowledge presented in the text that security managers are accountable for the day-to-day operation of the information security program. They accomplish the objectives that are identified by...
-
I. Examine the reasons why log data should be compiled for analysis over time. This helps to examine what happened when an intrusion occurred and the motive (or reason why) as well as who may also be...
-
Which of the following is the strongest symmetric encryption cryptosystem? a. Data Encryption System (DES) b. Advanced Encryption Standard (AES) c. Triple DES (3DES) d. RSA algorithm
-
The marginal tax rate on a corporate income of \(\$ 87,000\) is closest to which of the following? a. 15 percent b. 20.5 percent c. 25 percent d. 34 percent
-
Calculate the corporate income tax for each of the following corporate taxable incomes. For each, determine the effective (average) tax rate and the marginal tax rate. a. $12,000 b. $65,000 c....
-
True or False: If the same amount of money is invested in something that can be expensed as in something that must be depreciated (and both provide the same annual returns) then you should choose the...
Study smarter with the SolutionInn App