C191 Operating Systems for Programmers Practice Questions - Set 4 - Part 3

Correct Answer: B) An error that occurs when more data is written to a buffer than it can hold

Explanation: A buffer overflow occurs when data exceeds the buffer's storage capacity, potentially leading to system crashes or security vulnerabilities.

Correct Answer: A) HTTP

Explanation: HTTP (Hypertext Transfer Protocol) is a protocol used for transferring hypertext requests and information on the internet, governing how data is transmitted.

Correct Answer: B) The time delay between a request and the response

Explanation: Latency measures the delay in communication between devices or processes, affecting overall performance and responsiveness in computing.

Correct Answer: D) All of the above

Explanation: Stacks, queues, and linked lists are all fundamental data structures used in programming to organize and manage data efficiently.

Correct Answer: B) An attempt to obtain sensitive information by disguising as a trustworthy entity

Explanation: Phishing is a fraudulent practice where attackers attempt to trick individuals into providing sensitive information by posing as legitimate entities.

Correct Answer: B) Requests services from the server

Explanation: In a client-server model, clients request resources or services from a centralized server, which processes the requests and provides the necessary data or functionality.

Correct Answer: B) A document used to verify the identity of a party

Explanation: A digital certificate serves as a credential that verifies the identity of individuals or organizations in digital communications, often used in conjunction with encryption.

Correct Answer: B) To allow multiple devices to share a single public IP address

Explanation: NAT is used in networking to enable multiple devices on a local network to communicate with external networks using a single public IP address, enhancing IP address conservation.

Correct Answer: B) Malware that encrypts a user's data and demands payment for access

Explanation: Ransomware is a malicious software that locks users out of their data, threatening to delete or publish it unless a ransom is paid.

Correct Answer: C) To ensure data availability and prevent loss

Explanation: Data redundancy involves storing copies of data in multiple locations to enhance reliability and protect against data loss due to hardware failures or other issues.