Examen cisco 5

1
In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another?

destination network address

source network address

source MAC address

well known port destination address


2
What information is added during encapsulation at OSI Layer 3?

source and destination MAC

source and destination applicationprotocol

source and destination port number

source and destination IP address


3
In a connectionless system, which of the following is correct?

The destination is contacted before a packet is sent.

The destination is not contacted before a packet is sent.

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

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


4
Which IP packet field will prevent endless loops?

type-of-service

Identification

Flags

time-to-live

header checksum


5
Which portion of the network layer address does a router use to forward packets?

host portion

broadcast address

network portion

gateway address


6Refer 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?

192.135.250.1

192.31.7.1

192.133.219.0

192.133.219.1


7
If the default gateway is configured incorrectly on the host, what is the impact on communications?

The host is unable to communicate on the local network.

The host cancommunicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.

The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.

There is no impact on communications.


8
What is the purpose of a default gateway?

physically connects a computer to a network

provides apermanent address to a computer

identifies the network to which a computer is connected

identifies the logical address of a networked computer and uniquely identifies it to the rest of the network

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 routingtable?

dynamic

interior

static

standard


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

The router discards the packet.

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

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

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.)

gateways

purpose

physical addressing

software version

geographic locationownership


12
What is a component of a routing table entry?

the MAC address of the interface of the router

the destination Layer 4 port number

the destination host address

the next-hop address


13
Which intermediary devices could be used to implement security between networks? (Choose two.)

router

hub

switch

firewall

access point

bridge


14What are three common problems with a large network? (Choose three.)

too few broadcasts

performance degradation

security issues

limited management responsibility

host identification

protocol compatibility


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...