Unit 4 - Week 1 (CFU) | CSL[10-18]

Internet routing is designed to be fault-tolerant.

What implications does that have for the Internet's performance during a natural disaster?

• A natural disaster can never bring down the Internet because there will always be enough routes available.

• The Internet can keep routing messages as long as enough routes stay available, but it could be brought down entirely.

• The Internet can be switched over to use the emergency network routes, which cannot be brought down.

• If a natural disaster happens, the Internet will activate more routes in order to send emergency messages faster.

Imagine that you wanted to build a directory that listed the contents of the World Wide Web.

What type of item would each listing be?

• An Internet-connected computing device

• A network router

• A webpage

• A computer network

Which of the following is the MOST accurate description of the devices we use everyday?

• My computer is a client - I am directly connected to the internet

• My computer is a client - I request to access the internet on it

• My computer is a server - I am directly connected to the internet

• My computer is a server - It serves multiple purposes

Bett sends an instant message to her friend Mielle over the internet. Their computers use the TCP/IP protocols to communicate.

What's the best description of how Bett's computer sends the message?

• Bett's computer splits the message into packets and sends them all to her home router. That router sends each packet to Mielle's computer as fast as it can, without waiting for a response from Mielle's computer.

• Bett's computer creates two packets: one with the message and the other with the metadata. It first sends along the actual message and then sends along the metadata.

• Bett's computer splits the message into packets. It does a three-way handshake with Mielle's computer to establish the connection, then sends each packet to Mielle's home router. If Bett's computer detects packet loss, it re-sends the missing packets.

• Bett's computer splits the message into packets and sends it to her home router. That router looks up the best routing path in a routing table, records the path in the packet, and sends it to the next router in the path. The packet follows the path until it gets to the final destination.

Each IP packet contains a destination address.

What is the primary purpose of the destination address?

• It tells the router where the packet came from.

• It helps the sending computer know how long to wait before retrying.

• It helps the router know where to send the packet.

• It prevents the packet from being intercepted by cybercriminals.

• It helps the receiving computer reassemble the packets.

What was the original name of the project that led to the internet?

• OUTERNET

• ARPANET

• UPNET

• INTANET

Samania just updated her internet connection from 500Kb/s to 10MB/s. By making this change, Samania has upgraded her __________.

• Latency

• Internet Speed

• IP Address

• Bit Rate

Which of the following is NOT an Internet Protocol?

• WWE

• HTTP

• DNS

• TCP