Which two actions are permitted with Exadata Database Machine?

Which two actions are permitted with Exadata Database Machine?

A.
replacing the Ethernet switch with an equivalent 1U48-port Gigabit Ethernet switch

B.
installing a second Ethernet switch in the Exadata rack for client access network connectivity

C.
replacing the Sun Data Center InfiniBand Switch 36-spine switch with an InfiniBand Gateway
Switch

D.
configuring a Linux active-active channel bonding on the database servers by using two 10-Gigabit Ethernet port

E.
configuring a Fibre Channel over Ethernet (FCoE) protocol on database servers

Explanation:
There are total two category of network switches used to prepare computing
environment inside the rack.
* InfiniBand Switches – two models used depending on requirements
Sun Oracle 36-port InfiniBand Switch
Sun Oracle InfiniBand Gateway Switch
* Ethernet Switch – primarily for management purposes
Cisco Catalyst 4948

Common information that applies to both of these InfiniBand switches
Form Factor: One rack unit (1U) height

Power Supplies: Two
Cooling Fans: Five
IB Subnet Management: Yes
Firmware Upgradeable: Yes
Command Line Access: Yes. Via ssh and usb-serial access
Web Based Management: Yes
SNMP Access: Yes
As you might have figured out by now that the IB Gateway switch is almost like a super set of 36-port switch in terms of features and capabilities.
Incorrect:
Not E: Since the Exadata hardware cannot be modified, it is not supported to add HBA cards to
any of the Exadata servers. It is supported to present storage via the network ports on the
database servers via NFS or iSCSI, although Fibre Channel over Ethernet (FCoE) is not
supported.