Flipkart GRiD Computer Fundamentals/E-Commerce Quiz-2

The purpose of ARP (Address Resolution Protocol) is to translate MAC addresses into IP addresses. ARP is used by network devices to resolve the MAC address of a device on the same network, given its IP address.

TCP (Transmission Control Protocol) is a connection-oriented protocol that provides reliable, ordered, and error-checked delivery of data between applications. UDP (User Datagram Protocol) is a connectionless protocol that provides no guarantee of delivery, ordering, or error checking. TCP is typically used for applications that require reliable data transfer, such as web browsing and email, while UDP is typically used for applications that require high-speed, low-latency data transfer, such as streaming video and online gaming.

Cyclic redundancy check is a coding that is appended to data that enables us to spot any errors that might have happened during data transmission.

Errors cannot be corrected by CRC; they can only be detected.

Inserted inside the frame trailer is CRC.

A checksum is a value that is calculated from the data in a data packet. When the data packet is received, the checksum is recalculated and compared to the original checksum. If the two checksums do not match, then the data has been corrupted in transit.

A gateway is a device that connects two or more networks together. It can also route data packets between networks and translate between different network protocols.

 

A DNS server is a computer that stores a database of domain names and their corresponding IP addresses. When a user types a domain name into their web browser, the browser sends a request to a DNS server to resolve the domain name to an IP address.

 

A packet sniffer is a software program or hardware device that can capture and analyze network traffic. Packet sniffers can be used to troubleshoot network problems, gather security intelligence, or simply monitor network activity.

The correct format to query the site Flipkart.com about cybersecurity would be:

site:flipkart.com cybersecurity

This format uses the "site:" operator followed by the domain name (in this case, "flipkart.com") and the keyword "cybersecurity" to specify that you want to search for information about cybersecurity specifically on the Flipkart website.

The "robots.txt" file is typically located at the root of a website's domain. In the case of Flipkart.com, the correct location for the "robots.txt" file would be:

flipkart.com/robots.txt

This means that you can access the "robots.txt" file for Flipkart.com by entering the URL "https://www.flipkart.com/robots.txt" in a web browser.

The attack technique used to exploit websites by altering backend database queries by inputting malicious code is called SQL Injection. SQL Injection involves inserting malicious SQL statements into user input fields or other vulnerable areas of a web application to manipulate the underlying database and potentially gain unauthorized access or extract sensitive information.