CCNA第二学期期末汇总参考答案

CCNA 2 - Module 1

If a router cannot find a valid configuration file during the startup sequence, what will occur?

The router will prompt the user for a response to enter setup mode.

Refer to the exhibit. The network administrator has configured the router with the interface IP

addresses shown for the directly connected networks. Pings from the router to hosts on the connected

networks or pings between router interfaces are not working. What is the most likely problem?

The interfaces must be enabled with the no shutdown command.

Refer to the exhibit. What can be concluded from the routing table output in the exhibit? (Choose two.)

The router will change the frame type to one supported by the WAN link before forwarding the

frame.

The frame was received on the Fa0/0 interface of the router and will be switched to the S0/0/0

interface.

Passwords can be used to restrict access to all or parts of the Cisco IOS. Select the modes and

interfaces that can be protected with passwords. (Choose three.)

VTY interface

console interface

privileged EXEC mode

Which two statements correctly describe the components of a router? (Choose two.)

The switch needs an IP address that is not configured.

The router LAN interface and host 1 are on different networks.

The IP address of host 1 is on a different network than is the LAN interface of the router.

Which are functions of a router? (Choose three.)

packet switching

segmentation of broadcast domains

selection of best path based on logical addressing

Refer to the exhibit. All routers have a route in its routing table to each network that is shown in the

exhibit. Default routes have not been issued on these routers. What can be concluded about how

packets are forwarded in this network? (Choose two.)

If RouterA receives a packet that is destined for 192.168.3.146, it will be forwarded out interface

S0/0/1.

Sydney(config-if)# clock rate 56000

Refer to the exhibit. What can be concluded from the output of the running-configuration of a router?

The commands that are displayed determine the current operation of the router.

Refer to the exhibit. Host A pings host B. When R4 accepts the ping into the Ethernet interface, what

two pieces of header information are included? (Choose two.)

destination IP address: 192.168.10.134

destination MAC address: 9999.DADC.1234

R1(config-line)# password check123

R1(config-line)# login

sets the password to be used for connecting to this router via Telnet

Which of the following is the correct flow of routines for a router startup?

load bootstrap, load IOS, apply configuration

What three processes does a router execute when it receives a packet from one network that is destined

for another network? (Choose three.)

decapsulates the Layer 3 packet by stripping off the Layer 2 frame header

Which two statements describe characteristics of load balancing? (Choose two.)

Load balancing allows a router to forward packets over multiple paths to the same destination

network.

Unequal cost load balancing is supported by EIGRP.

What information about the router and its startup process can be gathered from the output of the show

version command? (Choose three.)

the last restart method

the configuration register settings

the location from where the IOS loaded

Which interfaces in the exhibit could be used for a leased line WAN connection? (Choose two.)

executed to save configuration changes to NVRAM?

Router1# copy running-config startup-config

What is the default sequence for loading the configuration file?

NVRAM, TFTP, CONSOLE

What header address information does a router change in the information it receives from an attached

Ethernet interface before information is transmitted out another interface?

the Layer 2 source and destination address

CCNA 2 - Module 2

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