CCNA Semester 2 chapter 1

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CCNA2 Chapter 1

1. Which two things can be determined by using the ping command? (Choose two.)

the number of routers between the source and destination device
the IP address of the router nearest the destination device
**the average time it takes a packet to reach the destination and for the response to return to the source
**whether or not the destination device is reachable through the network
the average time it takes each router in the path between source and destination to respond


2. What are three main types of high-bandwidth connection options used by medium- to large-sized businesses? (Choose three.)

DSL
cable modem
Ethernet
**metro Ethernet
**T1
**T3


3. What is the maximum T1 transmission speed?

56 kbps
128 kbps
**1.544 Mbps
2.4 Mbps


4. Which of the following start the test of destination reachability?

**echo request issued by source
echo reply issued by source
echo request issued by destination
echo reply issued by destination


5. Which statement describes a function of a Tier 1 ISP?

**peers with other similarly sized ISPs to form the global Internet backbone
uses the services of Tier 3 ISPs to connect to the global Internet backbone
pays Tier 2 ISPs for transit services to connect across continents
limits the offered services to small geographic areas


6. At which point do individuals and small businesses connect directly to the ISP network to obtain Internet access?

**at a POP
at an IXP
at a Metro Ethernet link
on the ISP extranet


7.What information is contained in the numbered RFCs maintained by the IETF?

the rules for acceptable use of websites and e-mail
the descriptions of various hardware components that connect to the Internet
**the specifications and rules for how devices communicate over an IP network
the standards for cabling and wiring for local Ethernet networks


8. Which network support services team is responsible for testing a new customer connection and for monitoring the ongoing operation of the link?"

customer service
help desk
**network operations
on-site installation


9. Which network support services team identifies whether the client site has existing network hardware and circuits installed?

customer service
help desk
network operations
**planning and provisioning


10. Which ISP network support systems team will typically contact the customer once a new circuit is ready and guide the customer in setting up passwords and other account information?

**help desk
customer service
network operations center
on-site installation team
planning and provisioning


11. What feature allows network devices to be scalable?

a fixed number of interfaces
ease of repair
**modularity
low maintenance requirements
low cost


12. Which command generated this output?

1 12.0.0.2 4 msec 4 msec 4 msec
2 23.0.0.3 20 msec 16 msec 16 msec
3 34.0.0.4 16 msec 18 msec 16 msec
**Router# traceroute 34.0.0.4
Router# nslookup 34.0.0.4
Router# ping 34.0.0.4
Router# telnet 34.0.0.4


13. Which network utility helps determine the location of network problems and identifies routers that packets travel across?

ping
ipconfig
**traceroute
ixp


14. What interconnects the Internet backbone?

gateway routers
**IXPs
POPs
satellite dishes


15. What units are used to measure Internet bandwidth?

**bits per second
bytes per second
hertz
megabytes per second
packets per second


16. The IT manager of a medium-sized business wishes to house the company-owned web servers in a facility that offers round-the-clock controlled access, redundant power, and high-bandwidth Internet access. Which ISP service will fulfill this need?

web hosting
planning and provisioning
application hosting
**equipment colocation
Tier 1 ISP services


17. What is the purpose of an RFC?

to provide the connection point for multiple ISPs to the Internet
**to document the development and approval of an Internet standard
to connect a business to an ISP
to provide data communication services to ISP customers
to monitor network performance and connection status of ISP clients


18. When did the Internet become available for use by businesses and consumers?

1979
1984
**1991
1999
2000


19. What was the original purpose of the Internet?

voice communication
marketing
**research
commerce


20. What three support service teams are commonly found within an ISP? (Choose three.)

**help desk
computer support
application readiness
**network operations center
**planning and provisioning
implementation and documentation
more.

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 FastEthernet0/0 and Serial0/0/0 interfaces of this router were configured with an IP address and the no shutdown command.
An IP packet received by this router with a destination address of 198.18.9.1 will be forwarded out of the Serial0/0/0 interface.



Refer to the exhibit. The frame shown in the exhibit was received by the router. The router interfaces are operational. How will the router process this frame? (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.)
ROM contains diagnostics executed on hardware modules.
Flash memory does not lose its contents during a reboot.

Refer to the exhibit. After host 2 is connected to the switch on the LAN, host 2 is unable to communicate with host 1. What is the cause of this problem?
The subnet mask of host 2 is incorrect.
Host 1 and host 2 are on different networks.
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.
If RouterB receives a packet that is destined for 10.5.27.15, it will be forwarded out interface S0/0/1.


The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)
Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
Sydney(config-if)# no shutdown
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


What is the outcome of entering these commands?
R1(config)# line vty 0 4
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
uses the destination IP Address in the IP header to look up the next-hop address in the routing table
encapsulates the Layer 3 packet into the new Layer 2 frame and forwards it out the exit interface


The network administrator needs to connect two routers directly via their FastEthernet ports. What cable should the network administrator use?
cross-over
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.)
1
4


From what location can a router load the Cisco IOS during the boot process? (Choose two.)
TFTP server
Flash memory


A network administrator has just entered new configurations into Router1. Which command should be 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 more.

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 FastEthernet0/0 and Serial0/0/0 interfaces of this router were configured with an IP address and the no shutdown command.
An IP packet received by this router with a destination address of 198.18.9.1 will be forwarded out of the Serial0/0/0 interface.



Refer to the exhibit. The frame shown in the exhibit was received by the router. The router interfaces are operational. How will the router process this frame? (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.)
ROM contains diagnostics executed on hardware modules.
Flash memory does not lose its contents during a reboot.

Refer to the exhibit. After host 2 is connected to the switch on the LAN, host 2 is unable to communicate with host 1. What is the cause of this problem?
The subnet mask of host 2 is incorrect.
Host 1 and host 2 are on different networks.
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.
If RouterB receives a packet that is destined for 10.5.27.15, it will be forwarded out interface S0/0/1.


The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)
Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
Sydney(config-if)# no shutdown
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


What is the outcome of entering these commands?
R1(config)# line vty 0 4
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
uses the destination IP Address in the IP header to look up the next-hop address in the routing table
encapsulates the Layer 3 packet into the new Layer 2 frame and forwards it out the exit interface


The network administrator needs to connect two routers directly via their FastEthernet ports. What cable should the network administrator use?
cross-over
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.)
1
4


From what location can a router load the Cisco IOS during the boot process? (Choose two.)
TFTP server
Flash memory


A network administrator has just entered new configurations into Router1. Which command should be 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 more.