Which two options are advantages of having a modular design instead of an EOR design in a data center? (Choose two.)
A. cooling constraints
B. cable bulk
C. decreased STP processing
D. redundancy options
E. cost minimization
F. low-skilled manager
Isn’t it AB? ARCH book (4th ed) page 384:
“However, in large-scale networks, EoR may require extensive copper cabling from hundreds of servers to the end of the row and more infrastructure for patching and cabling. This translates to more operational complexity.”
Probably C and D, if by modular the question refers to FEX. From the same book, same section:
“Because multiple FEXes and parent switches behave as a single aggregation switch, FEX usage reduces the number of managed switches and removes a layer in STP topology. Current-generation FEXes cannot switch traffic between the local ports. All traffic is forwarded to the parent switch. So, FEX usage is ideal when most of the traffic flows between the servers and network core, and not between the servers that are connected to the same FEX.Nevertheless, an FEX-based design provides the benefits of a physical ToR design and a logical EoR design at the same time. As shown in Figure 11-10, this design reduces both the number of required connections to the aggregation and core layer and to the number of managed switches; it also reduces the STP domain.”
My 2 cents.