CCNA TEST PAPER 10 WITH ANSWERS V5-1 & V6-0


1 Which statement is true about MAC addresses?
  • 1. MAC addresses are implemented by software.
  • 2. A NIC only needs a MAC address if connected to a WAN.
  • 3. The first three bytes are used by the vendor assigned OUI.
  • 4. The ISO is responsible for MAC addresses regulations
ANSWER: 3

2 What happens to runt frames received by a Cisco Ethernet switch?
  • 1. The frame is dropped.
  • 2. The frame is returned to the originating network device.
  • 3. The frame is broadcast to all other devices on the same network.
  • 4. The frame is sent to the default gateway.
ANSWER: 1

3 Which statement describes the treatment of ARP requests on the local link?
  • 1. They must be forwarded by all routers on the local network.
  • 2. They are received and processed by every device on the local network.
  • 3. They are dropped by all switches on the local network.
  • 4. They are received and processed only by the target device.
ANSWER: 2

4 On a Cisco switch, _____ memory buffering is used to buffer frames in queues linked to specific incoming and outgoing ports.

    ANSWER:PORT-BASED

5 ARP _____ is a technique that is used to send fake ARP messages to other hosts in the LAN. The aim is to associate IP addresses to the wrong MAC addresses.
    ANSWER:SPOOFING

6 What are two potential network problems that can result from ARP operation? (Choose two.)
  • 1. Manually configuring static ARP associations could facilitate ARP poisoning or MAC address spoofing.
  • 2. On large networks with low bandwidth, multiple ARP broadcasts could cause data communication delays.
  • 3. Network attackers could manipulate MAC address and IP address mappings in ARP messages with the intent of intercepting network traffic.
  • 4. Large numbers of ARP request broadcasts could cause the host MAC address table to overflow and prevent the host from communicating on the network.
  • 5. Multiple ARP replies result in the switch MAC address table containing entries that match the MAC addresses of hosts that are connected to the relevant switch port.
ANSWER: 2&3

7 True or False?
When a device is sending data to another device on a remote network, the Ethernet frame is sent to the MAC address of the default gateway.
  • 1. true
  • 2. false
ANSWER: 1

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