Router and Switch Functions JN0-105 Practice Questions (Page 4)

Questions 16–20

1. 16application · easy

   A small office has a single LAN with no VLANs. All devices are connected to a single switch, and the switch is connected to the internet via a router. A user sends a file to another user on the same LAN. Which device forwards the frames between the two users?

   • AThe switch, because it forwards frames based on MAC addresses
   • BBoth the switch and the router, because they both forward the frames
   • CNeither, because the users must communicate through the internet
   • DThe router, because it forwards all traffic between devices
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   What does a switch use to make frame forwarding decisions?

   • AThe destination MAC address
   • BThe TCP or UDP port number
   • CThe destination IP address
   • DThe source IP address
   Reveal Solution Discussion Select an answer first
4. 18application · easy

   A router has two interfaces: ge-0/0/0 connected to the 10.0.1.0/24 subnet and ge-0/0/1 connected to the 10.0.2.0/24 subnet. The router receives a packet on ge-0/0/0 with a destination IP address of 10.0.2.10. What will the router do?

   • AIt will forward the packet out ge-0/0/1
   • BIt will drop the packet because the destination is not on the same subnet
   • CIt will send the packet to the default gateway
   • DIt will broadcast the packet out all interfaces
   Reveal Solution Discussion Select an answer first
5. 19expert · hard

   A network has a router with two paths to a destination network: one through a high-speed link and one through a low-speed link. The router's routing table has both paths with the same metric. What will the router do?

   • AIt will drop packets because of the equal-cost paths
   • BIt will always use the high-speed link
   • CIt will load-balance traffic across both paths
   • DIt will always use the low-speed link
   Reveal Solution Discussion Select an answer first
6. 20application · easy

   A switch has just been powered on and has an empty MAC address table. A host sends a frame to another host on the same switch. What will the switch do with the frame?

   • AIt will broadcast the frame to all ports including the receiving port
   • BIt will forward the frame out all ports except the receiving port
   • CIt will send the frame to the router for forwarding
   • DIt will drop the frame because it does not know the destination
   Reveal Solution Discussion Select an answer first