Ccna v4 final

Take Assessment - ENetwork Final Exam - CCNA Exploration: Aspectos básicos de networking (Version 4.0)




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1


Refer to the exhibit. Host A is able to access resources on the local LAN but is unable to access any resources on the Internet. What is the likely cause of this problem?

The host subnet mask in incorrect.

Thenetwork uses private addresses.

The host address is a network address.

The default gateway is on a different subnet from the host.


2


Refer to the exhibit. Host A attempts to establish a TCP/IP session with host C. During this attempt, a frame was captured with the source MAC address 0050.7320.D632 and the destination MAC address 0030.8517.44C4. The packet inside the capturedframe has an IP source address 192.168.7.5, and the destination IP address is 192.168.219.24. At which point in the network was this packet captured?

leaving host A

leaving ATL

leaving Dallas

leaving NYC


3


Refer to the exhibit. Host C is able to ping 127.0.0.1 successfully, but is unable to communicate with hosts A and B in the organization. What is the likely cause ofthe problem?

Hosts A and B are not on the same subnet as host C.

The IP addresses on the router serial interfaces are wrong.

The subnet mask on host C is improperly configured.

The FastEthernet interface fa0/0 of router 1 is wrongly configured.


4


Refer to the exhibit. The ping 127.0.0.1 command is issued on the local host. What do the ping results indicate?

Thelocal host can send packets on the local network.

The TCP/IP stack on the local host operates properly.

The local host has full connectivity to the default gateway.

The local host has full connectivity to the remote network.


5
To enhance security in a network, the network administrator uses these commands:

Router(config)# line console 0
Router(config-line)# password j1mdi2Router(config-line)# login

What two conclusions are evident from these commands? (Choose two.)

Users who attempt to connect to the console port of the router must enter a password.

The entries permit access through the console by the use of j1mdi2 as the password.

The entries eliminate the need for authentication.

Access through the console will be denied because the consoleconfiguration is incomplete.

The entries prevent passwords from being displayed as plain text.


6
How many host addresses may be assigned when using the 128.107.0.0 network address with a subnet mask of 255.255.248.0?

30

256

2046

2048

4094

4096


7
What is the Cisco IOS?

system software for Cisco devices

Read Only Memory in Cisco devicesnon-volatile storage for device configurations

an initial operating system that is used for boot functions


8


Refer to the exhibit. Communication for hosts X and Y is restricted to the local network. What is the reason for this?

Host X is assigned a network address.

Host Y is assigned a multicast address.

Host X and host Y belong to different networks.

The gateway addressesare broadcast addresses.


9
Which memory contents will change as a result of using the Router# erase startup-config command on a router?

RAM

ROM

flash

NVRAM


10
What are three characteristics of CSMA/CD? (Choose three.)

Devices can be configured with a higher transmission priority.

A jam signal indicates that the collision has cleared and the media is notbusy.

A device listens and waits until the media is not busy before transmitting.

The device with the electronic token is the only one that can transmit after a collision.

All of the devices on a segment see data that passes on the network medium.

After detecting a collision, hosts can attempt to resume transmission after a random time delay has expired.


11
Which password is...