CS6250 COMPUTER NETWORK EXAM 2 |
Detailed Review Guide with Exam
Questions and Verified Solutions |
Graded A+
‣ 2 types of policies in SDX . Answer: inbound and outbound
‣ SDX implements 4 types of apps . Answer: application-specific, traffic
engineering, traffic load balancing, and traffic redirection through
middleboxes
‣ 2 limitations of BGP that SDN helps with . Answer: routing on dest IP
prefix, networks have little control over e2e paths
‣ 5 applications of SDN . Answer: traffic engineering, mobility and
wireless, measurement and monitoring, security and dependability, data
center networking
‣ 2 main ops of P4 forwarding model . Answer: configure, populate
‣ 3 goals of P4 . Answer: reconfigurability, protocol independence,
target independence
‣ example of a distributed controller . Answer: ONOS
, ‣ 2 ways for distribution to occur in distributed controllers . Answer:
centralized cluster of nodes or a physically distributes set of elements
‣ 2 categories of SDN controllers . Answer: centralized and distributed
‣ 6 core controller functions . Answer: topology, stats, notifications,
device mgmt, shortest path forwarding, security
‣ 2 functions of network layer . Answer: forwarding (data), routing
(control)
‣ Most important task of router . Answer: transfer received packet from
input link interface to appropriate output link interface
‣ What are the main components of a router? . Answer: input/output
ports, switching fabric, and routing processor
‣ Three input port functionalities . Answer: physically terminate
incoming links to router, data link processing unit decapsulates packets,
perform lookup function
‣ switching fabric functionality . Answer: moves packets from input to
output ports and makes connection between them
Detailed Review Guide with Exam
Questions and Verified Solutions |
Graded A+
‣ 2 types of policies in SDX . Answer: inbound and outbound
‣ SDX implements 4 types of apps . Answer: application-specific, traffic
engineering, traffic load balancing, and traffic redirection through
middleboxes
‣ 2 limitations of BGP that SDN helps with . Answer: routing on dest IP
prefix, networks have little control over e2e paths
‣ 5 applications of SDN . Answer: traffic engineering, mobility and
wireless, measurement and monitoring, security and dependability, data
center networking
‣ 2 main ops of P4 forwarding model . Answer: configure, populate
‣ 3 goals of P4 . Answer: reconfigurability, protocol independence,
target independence
‣ example of a distributed controller . Answer: ONOS
, ‣ 2 ways for distribution to occur in distributed controllers . Answer:
centralized cluster of nodes or a physically distributes set of elements
‣ 2 categories of SDN controllers . Answer: centralized and distributed
‣ 6 core controller functions . Answer: topology, stats, notifications,
device mgmt, shortest path forwarding, security
‣ 2 functions of network layer . Answer: forwarding (data), routing
(control)
‣ Most important task of router . Answer: transfer received packet from
input link interface to appropriate output link interface
‣ What are the main components of a router? . Answer: input/output
ports, switching fabric, and routing processor
‣ Three input port functionalities . Answer: physically terminate
incoming links to router, data link processing unit decapsulates packets,
perform lookup function
‣ switching fabric functionality . Answer: moves packets from input to
output ports and makes connection between them
