ch5, Sieci Komputerowe Cisco


Początek formularza

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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source network address

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source MAC address

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well known port destination address

Dół formularza

2 points for Option 1
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

What information is added during encapsulation at OSI Layer 3?

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source and destination MAC

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source and destination application protocol

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source and destination port number

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source and destination IP address

Dół formularza

2 points for Option 4
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

In a connectionless system, which of the following is correct?

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The destination is contacted before a packet is sent.

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The destination is not contacted before a packet is sent.

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The destination sends an acknowledgement to the source that indicates the packet was received.

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The destination sends an acknowledgement to the source that requests the next packet to be sent.

Dół formularza

2 points for Option 2
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

Which IP packet field will prevent endless loops?

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type-of-service

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identification

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flags

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time-to-live

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header checksum

Dół formularza

2 points for Option 4
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

Which portion of the network layer address does a router use to forward packets?

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host portion

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broadcast address

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network portion

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gateway address

Dół formularza

Scoring Rule For:  correctness of response

2 points for Option 3
0 points for any other option

Max Value = 2

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Początek formularza


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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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192.135.250.1

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192.31.7.1

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192.133.219.0

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192.133.219.1

Dół formularza

2 points for Option 4
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

If the default gateway is configured incorrectly on the host, what is the impact on communications?

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The host is unable to communicate on the local network.

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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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The host can communicate with other hosts on remote networks, but is unable to communicate

with hosts on the local network.

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There is no impact on communications.

Dół formularza

2 points for Option 2
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2

Początek formularza

What is the purpose of a default gateway?

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physically connects a computer to a network

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provides a permanent address to a computer

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identifies the network to which a computer is connected

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identifies the logical address of a networked computer and

uniquely identifies it to the rest of the network

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identifies the device that allows local network computers to communicate with devices on other networks

Dół formularza

2 points for Option 5
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

What type of routing uses information that is manually entered into the routing table?

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dynamic

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interior

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static

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standard

Dół formularza

2 points for Option 3
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2

Początek formularza

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 sends an ARP request to determine the required next hop address.

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The router discards the packet.

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The router forwards the packet toward the next hop indicated in the ARP table.

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The router forwards the packet to the interface indicated by the source address.

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The router forwards the packet out the interface indicated by the default route entry.

Dół formularza

Option 2 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required.

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software version

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geographic location

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ownership

Dół formularza

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

What are the key factors to consider when grouping hosts into a common network? (Choose three.)

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gateways

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purpose

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physical addressing

Scoring Rule For:  correctness of response

Option 2, Option 5, and Option 6 are correct.
1 point for each correct option.
0 points if more options are selected than required.

Max Value = 3

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the destination Layer 4 port number

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the destination host address

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the next-hop address

Początek formularza

What is a component of a routing table entry?

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the MAC address of the interface of the router

Dół formularza

2 points for Option 4
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2

Początek formularza

Which intermediary devices could be used to implement security between networks?

(Choose two.)

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router

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hub

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switch

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firewall

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access point

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bridge

Dół formularza

Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required.

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

What are three common problems with a large network? (Choose three.)

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too few broadcasts

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performance degradation

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security issues

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limited management responsibility

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host identification

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protocol compatibility

Dół formularza

Option 2, Option 3, and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required.

Scoring Rule For:  correctness of response

Max Value = 3

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Początek formularza

Dół formularza

2 points for Option 2
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2


Początek formularza

Which three statements are true about routes and their use? (Choose three.)

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If no route to the destination network is found, the packet is returned to the previous router.

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If the destination network is directly connected, the router forwards the packet to the destination

host.

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If multiple network entries exist for the destination network, the most general route is used to

forward the packet.

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If no route exists for the destination network and a default route is present, the packet is forwarded

to the next-hop router.

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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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If a host does not have a route manually configured for the destination network, the host will drop the packet.

Dół formularza

Option 2, Option 4, and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required.

Scoring Rule For:  correctness of response

Max Value = 3

Początek formularza


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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?

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10.10.10.26

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127.0.0.1

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10.10.10.6

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10.10.10.1

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224.0.0.0

Dół formularza

2 points for Option 3
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2

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Option 1 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required.

Scoring Rule For:  correctness of response

Max Value = 2

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Option 1 and Option 5 are correct.
1 point for each correct option.
0 points if more options are selected than required.

Scoring Rule For:  correctness of response

Max Value = 2

Początek formularza

Dół formularza

Option 2 and Option 4 are correct.
1 point for each correct option.
0 points if more options are selected than required.

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Scoring Rule For:  correctness of response

Max Value = 2

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2 points for Option 4
0 points for any other option

Scoring Rule For:  correctness of response

Max Value = 2



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