CS6250 COMPUTER NETWORKS EXAM
SCRIPT COMPREHENSIVE STUDY GUIDE
●● (Lesson 7) The main idea behind SDNs is to divide tasks into smaller
functions so the code is more modular and easy to manage. (T/F)
Answer: False
●● (Lesson 7) With SDNs the control plane and data plane have
independent evolution and development. (T/F)
Answer: True
●● (Lesson 7) In the SDN approach, the SDN controller is physically
located at each router that is present in a network. (T/F)
Answer: False
●● (Lesson 7) By separating the control plane and the data plane,
controlling the router's behavior became easier using higher order
programs. For example, it is easier to update the router's state or control
the path selection. (T/F)
Answer: True
●● (Lesson 7) In the SDN approach, ISPs or other third parties can take
up the responsibility for computing and distributing the router's
forwarding tables. (T/F)
,Answer: True
●● (Lesson 7) Having the software implementations for SDNs
controllers increasingly open and publicly available makes it hard to
control, since any person could modify the software easily. (T/F)
Answer: False
●● (Lesson 7) In SDN networks, the SDN controller is responsible for
the forwarding of traffic. (T/F)
Answer: False
●● (Lesson 7) The network-control applications are programs that
manage the underlying network with the help of the SDN controller.
(T/F)
Answer: True
●● (Lesson 7) In SDN networks forwarding rules of traffic still have to
be based on IP destination and cannot be based on other metrics, packet
header info etc. (T/F)
Answer: False
●● (Lesson 7) SDN-controlled switches operate on the: (Data Plane or
Control Plane?)
Answer: Data Plane
, ●● (Lesson 7) In an SDN Architecture, the northbound interface keeps
track of information about the state of the hosts, links, switches and
other controlled elements in the network, as well as copies of the flow
tables of the switches. (T/F)
Answer: False
●● (Lesson 7) In SDN networks, the southbound interface is responsible
for the communication between SDN controller and the controlled
devices. (T/F)
Answer: True
●● (Lesson 7) In SDN networks, the controller needs to be implemented
over a centralized server. (T/F)
Answer: False
●● (Lesson 8) An OpenFlow switch can function as a router. (T/F)
Answer: True
●● (Lesson 8) Determine which plane executes a network policy. (Data
Plane, Control Plane, Management Plane, or All Planes?)
Answer: Data Plane
SCRIPT COMPREHENSIVE STUDY GUIDE
●● (Lesson 7) The main idea behind SDNs is to divide tasks into smaller
functions so the code is more modular and easy to manage. (T/F)
Answer: False
●● (Lesson 7) With SDNs the control plane and data plane have
independent evolution and development. (T/F)
Answer: True
●● (Lesson 7) In the SDN approach, the SDN controller is physically
located at each router that is present in a network. (T/F)
Answer: False
●● (Lesson 7) By separating the control plane and the data plane,
controlling the router's behavior became easier using higher order
programs. For example, it is easier to update the router's state or control
the path selection. (T/F)
Answer: True
●● (Lesson 7) In the SDN approach, ISPs or other third parties can take
up the responsibility for computing and distributing the router's
forwarding tables. (T/F)
,Answer: True
●● (Lesson 7) Having the software implementations for SDNs
controllers increasingly open and publicly available makes it hard to
control, since any person could modify the software easily. (T/F)
Answer: False
●● (Lesson 7) In SDN networks, the SDN controller is responsible for
the forwarding of traffic. (T/F)
Answer: False
●● (Lesson 7) The network-control applications are programs that
manage the underlying network with the help of the SDN controller.
(T/F)
Answer: True
●● (Lesson 7) In SDN networks forwarding rules of traffic still have to
be based on IP destination and cannot be based on other metrics, packet
header info etc. (T/F)
Answer: False
●● (Lesson 7) SDN-controlled switches operate on the: (Data Plane or
Control Plane?)
Answer: Data Plane
, ●● (Lesson 7) In an SDN Architecture, the northbound interface keeps
track of information about the state of the hosts, links, switches and
other controlled elements in the network, as well as copies of the flow
tables of the switches. (T/F)
Answer: False
●● (Lesson 7) In SDN networks, the southbound interface is responsible
for the communication between SDN controller and the controlled
devices. (T/F)
Answer: True
●● (Lesson 7) In SDN networks, the controller needs to be implemented
over a centralized server. (T/F)
Answer: False
●● (Lesson 8) An OpenFlow switch can function as a router. (T/F)
Answer: True
●● (Lesson 8) Determine which plane executes a network policy. (Data
Plane, Control Plane, Management Plane, or All Planes?)
Answer: Data Plane
