CNIT 340 Exam 1| 58 QUESTIONS| WITH COMPLETE SOLUTIONS

CNIT 340 Exam 1| 58 QUESTIONS| WITH
COMPLETE SOLUTIONS
 Course
 CNIT

Question 1:

What is the primary purpose of an operating system?

 A. To manage hardware resources
 B. To provide internet access
 C. To run application software
 D. To enhance graphics performance

Answer: A. To manage hardware resources

Rationale: The operating system (OS) serves as an intermediary between users and the
computer hardware, managing resources such as the CPU, memory, and input/output devices.



Question 2:

Which of the following protocols is used to securely transmit data over the internet?

 A. FTP
 B. HTTP
 C. HTTPS
 D. SMTP

Answer: C. HTTPS

Rationale: HTTPS (Hypertext Transfer Protocol Secure) uses SSL/TLS protocols to provide
a secure channel over an insecure network, ensuring that data transmitted is encrypted.



Question 3:

In a client-server architecture, what is the role of the client?

 A. To store data
 B. To process requests and provide services
 C. To send requests to the server
 D. To manage network traffic

Answer: C. To send requests to the server

,Rationale: In a client-server architecture, clients are the devices or software that initiate
requests to servers, which then process those requests and return the appropriate responses.



Question 4:

What is the primary function of a firewall in a network?

 A. To improve network speed
 B. To monitor network traffic
 C. To block unauthorized access
 D. To connect different networks

Answer: C. To block unauthorized access

Rationale: Firewalls are security devices or software that monitor and control incoming and
outgoing network traffic based on predetermined security rules, effectively blocking
unauthorized access.



Question 5:

Which data structure uses a LIFO (Last In, First Out) principle?

 A. Queue
 B. Array
 C. Stack
 D. Linked List

Answer: C. Stack

Rationale: A stack data structure follows the LIFO principle, where the last element added is
the first one to be removed, making it useful for certain algorithms and function calls.



Question 6:

What does SQL stand for, and what is its primary purpose?

 A. Structured Query Language; used for managing relational databases
 B. Simple Query Language; used for basic data retrieval
 C. Standard Query Language; used for all database types
 D. Secure Query Language; used for data encryption

Answer: A. Structured Query Language; used for managing relational databases

, Rationale: SQL is a standardized programming language specifically designed for managing
and manipulating relational databases, enabling users to perform various operations such as
querying and updating data.



Question 7:

Which of the following best describes cloud computing?

 A. Storing data on a local server
 B. Accessing data and applications over the internet
 C. Using physical hardware for data processing
 D. Developing software on a desktop environment

Answer: B. Accessing data and applications over the internet

Rationale: Cloud computing allows users to access data and applications remotely via the
internet, providing flexibility, scalability, and reduced IT overhead.



Question 8:

What is the purpose of an IP address?

 A. To encrypt data transmission
 B. To uniquely identify a device on a network
 C. To enhance internet browsing speed
 D. To establish secure connections

Answer: B. To uniquely identify a device on a network

Rationale: An IP address serves as a unique identifier for devices on a network, allowing for
proper routing of data packets between devices.



Question 9:

Which of the following is a disadvantage of using a virtual private network (VPN)?

 A. Increased security for data transmission
 B. Potential decrease in internet speed
 C. Ability to access geo-restricted content
 D. Encryption of sensitive data

Answer: B. Potential decrease in internet speed