Question 1

You need to design a network that supports transmitting RDMA traffic over multiple IP hops. Which protocols must the switches support? (Select all that apply.)

Options :

A : ETS

B : IP ECN

C : PFC

D : QCN

Answer: A,B,C

Question 2

Mention two disadvantages of the End-of-Row or Middle-of-Row switches in Data Center design

Options :

A : More equipment

B : Higher latency for rack-to-rack traffic within the row

C : Longer, more complex cabling within the row

D : Lower port density and less scalable

Answer: C,D

Question 3

What can be used to encrypt data in flight between untrusted locations?

Options :

A : OSPF authentication

B : MACSec

C : GRE tunnels

D : MD5 encryption

Answer: B

Question 4

In VSX, the ISL (InterSwitch Link):

Options :

A : Can be indirectly connected

B : Must be directly connected

C : Can be used for keep alive communications

D : They must be routed links

Answer: B

Question 5

You are designing overlay solutions for two Data Centers. Each Data Center has two rooms and each room is its own fabric. What is the underlay routing protocol between each data center room?

Options :

A : iBGP

B : RIP

C : OSPF

D : eBGP

Answer: D