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• destination network address
2. What information is added during encapsulation at OSI Layer 3?
• source and destination IP address
3. In a connectionless system, which of the following is correct?
• The destination is not contacted before a packet is sent.
4. Which IP packet field will prevent endless loops?
• time-to-live
5. Which portion of the network layer address does a router use to forward packets?
• network portion
6. Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the 192.133.219.0 network?
• 192.133.219.1
7. If the default gateway is configured incorrectly on the host, what is the impact on communications?
• The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
8. What is the purpose of a default gateway?
• identifies the device that allows local network computers to communicate with devices on other networks
9. What type of routing uses information that is manually entered into the routing table?
• static
10. When the destination network is not listed in the routing table of a Cisco router, what are two possible actions that the router might take? (Choose two.)
• The router discards the packet.
• The router forwards the packet out the interface indicated by the default route entry.
11. What are the key factors to consider when grouping hosts into a common network? (Choose three.)
• purpose
• geographic location
• ownership
12. What is a component of a routing table entry?
• the next-hop address
13. Which intermediary devices could be used to implement security between networks? (Choose two.)
• router
• firewall
14. What are three common problems with a large network? (Choose three.)
• too few broadcasts
• performance degradation
• security issues
• host identification
15. Refer to the exhibit. All devices shown in the exhibit have factory default settings. How many broadcast domains are represented in the topology that is shown?
• 4
16. Which three statements are true about routes and their use? (Choose three.)
* If the destination network is directly connected, the router forwards the packet to the destination host.
• If no route exists for the destination network and a default route is present, the packet is forwarded to the next-hop router.
• If the originating host has a default gateway configured, the packet for a remote network can be forwarded using that route.
17. Refer to the exhibit. A network administrator is troubleshooting a connectivity problem and needs to determine the address that is used to forward network packets out the network. Using the netstat -r command, the administrator would identify which address as the address to which all hosts send packets that are destined for an outside network?
• 10.10.10.6
18. Refer to the exhibit. A network administrator notices that there are too many broadcasts on the network. What two steps can the network administrator take to resolve this problem? (Choose two.)
• Replace S2 with a router.
• Subnet the 192.168.0.0 /24 network.
19. Refer to the exhibit. The network in the exhibit is fully operational. What two statements correctly describe the routing for the topology that is shown? (Choose two.)
• 192.168.0.2 is the next-hop address that is used by R3 to route a packet from the 10.0.0.0 network to the 172.16.0.0 network.
• 192.168.0.1 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0 network.
20. What two characteristics are commonly associated with dynamic routing protocols? (Choose two.)
• provide routers with up-to-date routing tables
• consume bandwidth to exchange route information
21. What statement describes the purpose of a default route?
• A host uses a default route to transfer data to a host outside the local network when no other route to the destination exists.
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