Computer Science Engineering (CSE) Exam  >  Computer Science Engineering (CSE) Questions  >  An organization requires a range of IP addres... Start Learning for Free
An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?
I. 202.61.84.0/21
II. 202.61.104.0/21
III. 202.61.64.0/21
IV. 202.61.144.0/21
  • a)
    I and II only
  • b)
    II and III only
  • c)
    III and IV only
  • d)
    I and IV only
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
An organization requires a range of IP addresses to assign one to each...
To minimize the number of routing entries in the ISP, the organization should be assigned a subnet that falls within the existing IP address space 202.61.0.0/17.

CIDR notation represents an IP address and its subnet mask. In this case, the subnet mask is /17, which means that the first 17 bits of the IP address are fixed, and the remaining 15 bits can be used for subnetting.

To assign IP addresses to 1500 computers, the organization needs a subnet with at least 1500 usable addresses. The closest power of 2 greater than or equal to 1500 is 2048 (2^11).

Therefore, the organization should be assigned a subnet with a subnet mask of /21 (32 - 11 = 21). This will provide 2,048 addresses, which is more than enough for the 1500 computers.

The subnet range that can be assigned to the organization would be 202.61.0.0/21. This means that the organization's IP addresses will range from 202.61.0.0 to 202.61.7.255.

By assigning this subnet to the organization, the ISP can route all traffic for this subnet with a single routing entry, minimizing the number of routing entries in their system.
Free Test
Community Answer
An organization requires a range of IP addresses to assign one to each...
Concept:
CIDR stands for Classless Inter Domain Routing. CIDR denotes the number of bits in the Netid.  Upon subnetting, any IP address consist of three subparts: Netid (bits for identifying the network), subnetid (bits for subnetting), and Hostid (bits for address allocation to hosts)
Calculation:
Given CIDR is 17, that means Netid=17.
There are 1500 devices, so the number of bits in Hostid= 11 (because 211 ≥ 1500)
Therefore, subnet bits= 32- (17+11) = 4
Hence, in any IP address in the given network, first 17 bits be part of network, next 4 of subnet ans last 11 bits would be for host address. Host bits should be all 0s
Address I: Cannot be allotted
202.61.84.0/21= 202.61. 0 1010 100.00000000. This address is not possible because the all the 11 host bits should be zero, but it contains a 1.
Address II: Can be allotted
202.61.104.0/21= 202.61. 0 1101 000.00000000. This address is possible as all the host bits are 0 and network bits are also satisfied.
Address III: Can be allotted
202.61.64.0/21= 202.61.0 1000 000.0000000. This address is possible as all the host bits are 0 and network bits are also satisfied
Address IV: Cannot be allotted
202.61.144.0/21= 202.61. 1 0010 000. 00000000. This address is not possible because bit in Netid has become 1.
Explore Courses for Computer Science Engineering (CSE) exam

Top Courses for Computer Science Engineering (CSE)

An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer?
Question Description
An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer?.
Solutions for An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE). Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
Here you can find the meaning of An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice An organization requires a range of IP addresses to assign one to each of its 1500 computers. The organization has approached on Internet Service Provider (ISP) for this task. The ISP uses CIDR and serves the requests from the available IP address space 202.61.0.0/17. The ISP wants to assign an address space to the organization which will minimize the number of routing entries in the ISP’s router using route aggregation. Which of the following address spaces are potential candidates from which the ISP can allot any one to the organization?I. 202.61.84.0/21II. 202.61.104.0/21III. 202.61.64.0/21IV. 202.61.144.0/21a)I and II onlyb)II and III onlyc)III and IV onlyd)I and IV onlyCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.
Explore Courses for Computer Science Engineering (CSE) exam

Top Courses for Computer Science Engineering (CSE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev