CompTIA Security+ Question I-28

Matt, the IT Manager, wants to create a new network available to virtual servers on the same hypervisor, and does not want this network to be routable to the firewall. How could this BEST be accomplished?

A. Create a VLAN without a default gateway.
B. Remove the network from the routing table.
C. Create a virtual switch.
D. Commission a stand-alone switch.

Answer: C

Explanation:
A Hyper-V Virtual Switch implements policy enforcement for security, isolation, and service levels.

CompTIA Network+ Question C-78

Which of the following helps prevent routing loops?

A. Routing table
B. Default gateway
C. Route summarization
D. Split horizon

Correct Answer: D

Explanation:
Routing loops occur when the routing tables on the routers are slow to update and a redundant communication cycle is created between routers. Split horizon, which prevents the router from advertising a route back to the other router from which it was learned, can be used to resist routing loops. Poison reverse, also known as split horizon with poison reverse, is also used to resist routing loops.

CompTIA A+ Question K-38

Peter, a technician, is troubleshooting an issue with a PC suddenly losing network connectivity. He has confirmed that the cable is plugged in and has swapped it with a known working cable. Peter then pings the IP address of 127.0.0.1 and receives no response. Which of the following could be the cause of the issue? (Select TWO).

A. The computer has the wrong DNS server configured.
B. The TCP drivers are corrupted.
C. The cable has been unplugged from the patch panel.
D. The routing table on the router is corrupted.
E. There is RF interference on the cable.
F. The NIC is no longer functioning properly.

Correct Answer: BF