University of Sargodha BS 7 Semester / 3W Semester (5* Intake) Exam 2025 Paper: IT Infrastructure (ITCC-407/1TCC4544) Subject: 1.I

University of Sargodha

BS 7 Semester / 3W Semester (5* Intake) Exam 2025

Paper: IT Infrastructure (ITCC-407/1TCC4544)

Subject: 1.I

Time Allowed: 02:30 Hours

24BSU)

Maximum Marks: 60

Note: Objective part is compulsory. Attempt any three questions from subjective part.

Objective Part

(Compulsory)

Q.1. *

Write short answers of the following in 2-3 lines each on your answer sheet.

Define IT Infrastructure.

What is the role of a data center in IT infrastructure?

List two key components of hardware infrastructure.

What is virtualization in computing?

Mention any two types of network topologies.

What is meant by cloud computing?

What does VPN stand for, and what is its use?

Name two common operating systems used in enterprise environments.

What is BYOD?

Define scalability in IT infrastructure.

What is meant by redundaney?

Mention two types of storage devices.

(2*12)

Subjective Part

(3*12)

Q.2.

For 100 servers, each 3.5 inches high, if you are currently using 42U racks but considering switching

to 48U racks, calculate the total cost difference, Each 42U rack costs $200, and each 48U rack costs

$230. Additionally, factor in the cost of installation, which is $50 per rack for 42U racks and $60 per

rack for 48U racks, as well as the cost of power distribution units (PDUs), which is $75 per unit for

42U racks and $85 per unit for 48U racks, assuming each rack requires one PDU. How much will

you save or spend extra by making this switeh?

Explain the components and architecture of IT infrastructure in a medium-sized enterprise.

Q.4Y

Discuss the different types of cloud computing models. Highlight their benefits and drawbacks.

Q.5.

How is network security ensured in an enterprise IT setup? Include firewalls, VPNs, and access

Bulan. *

Describe the process of disaster recovery and business continuity planning in IT infrastructure.

- LK-4892/09-07-25 -