Long Exam 3 - Networking and Security

Question 1

What are the three layers in generalized forwarding?

Answer 1

link, network, and transport

Question 2

What is DASH?

Answer 2

Dynamic Adaptive Streaming over HTTP

Question 3

What are the two types of CDNs?

Answer 3

enter deep (push CDN servers deep into many access networks) and bring home (small number of larger clusters in POPs near access nets)

Question 4

What is the manifest file?

Answer 4

provide URLs for different chunks

Question 5

What is the TCP?

Answer 5

Transport Control Protocol - transport data scalably while dealing with varying application demands

Question 6

What are the three types of in-network resource management?

Answer 6

Queue Management, Delay-Based Scheduling, Bandwidth-Based Scheduling

Question 7

What are examples of queue management?

Answer 7

DropTail, random early detection, and explicit congestion notification

Question 8

What is an example of delay-based scheduling?

Answer 8

Priority Queuing

Question 9

What are examples of bandwidth-based scheduling?

Answer 9

Round robin, weighted round robin, and deficit round robin

Question 10

What are the three types of authentication?

Answer 10

• what you are
• what you have
• what you know

Question 11

What is the Diffie-Hellman key exchange formula?

Answer 11

• key = g^(ab) mod p