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20 Cards in this Set
- Front
- Back
In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another?
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destination network address
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What information is added during encapsulation at OSI Layer 3?
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source and destination IP address
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In a connectionless system, which of the following is correct?
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The destination is not contacted before a packet is sent.
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Which IP packet field will prevent endless loops?
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time-to-live
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Which portion of the network layer address does a router use to forward packets?
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network portion
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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?
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192.133.219.1
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If the default gateway is configured incorrectly on the host, what is the impact on communications?
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The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
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What is the purpose of a default gateway?
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identifies the device that allows local network computers to communicate with devices on other networks
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What type of routing uses information that is manually entered into the routing table?
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static
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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.)
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The router discards the packet.
The router forwards the packet out the interface indicated by the default route entry. |
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What are the key factors to consider when grouping hosts into a common network? (Choose three.)
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purpose
geographic location ownership |
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What is a component of a routing table entry?
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the next-hop address
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Which intermediary devices could be used to implement security between networks? (Choose two.)
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router
firewall |
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What are three common problems with a large network? (Choose three.)
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performance degradation
security issues host identification |
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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?
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4
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Which three statements are true about routes and their use? (Choose three.)
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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. |
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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.)
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Replace S2 with a router.
Subnet the 192.168.0.0 /24 network. |
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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.)
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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. |
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What two characteristics are commonly associated with dynamic routing protocols? (Choose two.)
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provide routers with up-to-date routing tables
consume bandwidth to exchange route information |
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What statement describes the purpose of a default route?
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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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