University of Sargodha BS an Semester (5" Intake) Exam 2025 Paper: Routing & Switching (ITEC-4560
Discussion
Ask a question about this paper, or help someone else with theirs. Answers are emailed to whoever asked.
No questions yet — be the first to ask.
Paper text
University of Sargodha
BS an Semester (5" Intake) Exam 2025
Paper: Routing & Switching (ITEC-4560
University of Sargodha
BS an Semester (5" Intake) Exam 2025
Paper: Routing & Switching (ITEC-4560
Subjeer: 1.T
Time Allowed: 2:30 Hours
Vote: Objective part is compulsory. Attempt any three questions from subjective
Objective Part
(Compulsory)
Q.1.
Write short answers of the following in 2-3 lines each.
What is the range and purpose of class d?
What is subnet mask of class B?
RESENT
Why is proxy ARP used?
Give two datalink layer protocols with use of each.
How many VLans are automatically present? -
What is switch security?
What is the combination to make straight cable? •
What are the total number of addresses?
What is CSMA/CD?
Explain CIDR.
What is the purpose of edge router?
How switching table is filled?
Subjective Part
(3*12)
What are the common layer 2 protocols? Describe any two in detail.
What are IP Services? Explain three in detail,
Give the configurations and explanation of vlans.
Explain routing protocol OSPF? Give its complete configuration.
An ISP is granted the block 16.12.64.0/20. The ISP needs to allocate addresses for 8 organizations,
each with 256 addresses.
a) Find the number and range of addresses in the ISP block.
b) Find the range of addresses for each organization and the range of unallocated addresses.
--- LK-4990/11-07-25
Q.4.
Q.5.
Q.6.
University of Sargodha
BS an Semester (5" Intake) Exam 2025
Paper: Routing & Switching (ITEC-4560
Subjeer: 1.T
Time Allowed: 2:30 Hours
Vote: Objective part is compulsory. Attempt any three questions from subjective
Objective Part
(Compulsory)
Q.1.
Write short answers of the following in 2-3 lines each.
What is the range and purpose of class d?
What is subnet mask of class B?
RESENT
Why is proxy ARP used?
Give two datalink layer protocols with use of each.
How many VLans are automatically present? -
What is switch security?
What is the combination to make straight cable? •
What are the total number of addresses?
What is CSMA/CD?
Explain CIDR.
What is the purpose of edge router?
How switching table is filled?
Subjective Part
(3*12)
What are the common layer 2 protocols? Describe any two in detail.
What are IP Services? Explain three in detail,
Give the configurations and explanation of vlans.
Explain routing protocol OSPF? Give its complete configuration.
An ISP is granted the block 16.12.64.0/20. The ISP needs to allocate addresses for 8 organizations,
each with 256 addresses.
a) Find the number and range of addresses in the ISP block.
b) Find the range of addresses for each organization and the range of unallocated addresses.
--- LK-4990/11-07-25