AMCAT Networking and Web Technologies

Question 1

At which layer of the OSI model does a router primarily operate?

Accepted Answer

Network Layer (Layer 3)

Answer

Data Link Layer (Layer 2)

Answer

Transport Layer (Layer 4)

Answer

Application Layer (Layer 7)

Question 2

What is the primary purpose of DNS (Domain Name System)?

Accepted Answer

To translate human-readable domain names into IP addresses

Answer

To encrypt data transmitted over the internet

Answer

To assign IP addresses to devices on a network

Answer

To filter malicious web traffic

Question 3

Which HTTP status code indicates that the requested resource has been permanently moved to a new URL?

Accepted Answer

301 Moved Permanently

Answer

200 OK

Answer

404 Not Found

Answer

500 Internal Server Error

Question 4

What is the difference between TCP and UDP?

Accepted Answer

TCP provides reliable, connection-oriented delivery with error checking; UDP provides faster, connectionless delivery without guaranteed delivery

Answer

TCP is faster than UDP because it does not require a connection

Answer

UDP provides reliable, ordered delivery while TCP does not

Answer

There is no significant difference between TCP and UDP

Question 5

What does the 'same-origin policy' enforce in web browsers?

Accepted Answer

That scripts from one origin cannot access data from a different origin (different domain, protocol, or port)

Answer

That all websites must use HTTPS

Answer

That all web pages must have the same HTML structure

Answer

That cookies are shared across all websites

Question 6

In the context of REST APIs, which HTTP method is idempotent and used to update or create a resource at a specific URI?

Accepted Answer

PUT

Answer

POST

Answer

PATCH

Answer

DELETE