ccna-1-modul6

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1. Refer to the exhibit. Which network prefix will work with the IP addressing scheme shown in the graphic.

/24
/16
/20
***** /27
/25
/28

 

2. Which IPv4 subnetted addresses represent valid host addresses? (Choose three.)
172.16.4.127 /26
***** 172.16.4.155 /26
***** 172.16.4.193 /26
172.16.4.95 /27
172.16.4.159 /27
***** 172.16.4.207 /27

 

3. Which statements are true regarding IP addressing? (Choose two.)
NAT translates public addresses to private addresses destined for the Internet.
Only one company is allowed to use a specific private network address space.
***** Private addresses are blocked from public Internet by router.
Network 172.32.0.0 is part of the private address space.
***** IP address 127.0.0.1 can be used for a host to direct traffic to itself.

4. Which process do routers use to determine the subnet network address based • upon a given IP address and subnet mask?
binary adding
hexadecimal anding
binary division
binary multiplication
***** binary ANDing

 

5. Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem?
The host subnet mask is incorrect.
The default gateway is a network address.
The default gateway is a broadcast address.
***** The default gateway is on a different subnet from the host.

ccna-1-modul7

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1. Which three factors should be considered when implementing a Layer 2 protocol in a network? (Choose three.)

the Layer 3 protocol selected
***** the geographic scope of the network
the PDU defined by the transport layer
***** the physical layer implementation
***** he number of hosts to be interconnected

2. Refer to the exhibit. Assuming that the network in the exhibit is converged meaning the routing tables and ARP tables are complete, which MAC address will Host A place in the destination address field of Ethernet frames destined for www.server?
00-1c-41-ab-c0-00
***** 00-0c-85-cf-65-c0
00-0c-85-cf-65-c1
00-12-3f-32-05-af

3. Which options are properties of contention-based media access for a shared media? (Choose three.)
***** non-deterministic
***** less overhead
one station transmits at a time
***** collisions exist
devices must wait their turn
token passing

4. What is true concerning physical and logical topologies?
The logical topology is always the same as the physical topology.
Physical topologies are concerned with how a network transfers frames.
Physical signal paths are defined by Data Link layer protocols.
***** Logical topologies consist of virtual connections between nodes.

5. What is true regarding media access control? (Choose three.)
***** Ethernet utilizes CSMA/CD
***** defined as placement of data frames on the media
contention-based access is also known as deterministic
802.11 utilizes CSMA/CD
***** Data Link layer protocols define the rules for access to different media
controlled access contains data collisions

ccna-1-modul8

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1. Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
Presentation
Transport
Data Link
***** Physical

2. An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
light injector
***** OTDR
TDR
multimeter

3. Which characteristics describe fiber optic cable? (Choose two.)
***** It is not affected by EMI or RFI.
Each pair of cables is wrapped in metallic foil.
It combines the technique of cancellation, shielding and twisting to protect data.
It has a maximum speed of 100 Mbps.
***** It is the most expensive type of LAN cabling.

4. When is a straight-through cable used in a network?
when connecting a router through the console port
when connecting one switch to another switch
***** when connecting a host to a switch
when connecting a router to another router

5. Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?
coax cable
rollover cable
***** crossover cable
straight-through cable

ccna-1-modul9

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1. In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?
Host B can transmit immediately since it is connected on its own cable segment.
Host B must wait to receive a CSMA transmission from the hub, to signal its turn.
Host B must send a request signal to Host A by transmitting an interframe gap.
***** Host B must wait until it is certain that Host A has completed sending its frame.

2. Ethernet operates at which layers of the OSI model? (Choose two.)
Network layer
Transport layer
***** Physical layer
Application layer
Session layer
***** Data-link layer

3. Which of the following describe interframe spacing? (Choose two.)
***** the minimum interval, measured in bit-times, that any station must wait before sending another frame.
the maximum interval, measured in bit-times, that any station must wait before sending another frame.
the 96-bit payload padding inserted into a frame to achieve a legal frame size
the 96-bit frame padding transmitted between frames to achieve proper synchronization
***** the time allowed for slow stations to process a frame and prepare for the next frame.
the maximum interval within which a station must send another frame to avoid being considered unreachable

4. What three primary functions does data link layer encapsulation provide? (Choose three.)
***** addressing
***** error detection
***** frame delimiting
port identification
path determination
IP address resolution

5. When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?
***** The hosts return to a listen-before-transmit mode. <—
The hosts creating the collision have priority to send data.
The hosts creating the collision retransmit the last 16 frames.
The hosts extend their delay period to allow for rapid transmission.

ccna-1-modul10

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1. Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.)
connecting a PC to a router’s console port
***** connecting two routers together via their fast ethernet ports
connecting two switches together at gigabit speeds
connecting a PC to a switch at Gigabit Ethernet speeds
*****  connecting two devices with the same interface type at Fast Ethernet spee

2. Which option identifies the primary interface which would be used for initial configuration of a Cisco router?
AUX interface
Ethernet interface
serial interface
***** console interface

3. What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)
***** greater distances per cable run
lower installation cost
***** limited susceptibility to EMI/RFI
durable connections
***** greater bandwidth potential
easily terminated

4. A network administrator is required to use media in the network that can run up to 100 meters in cable length without using repeaters. The chosen media must be inexpensive and easily installed. The installation will be in a pre-existing building with limited cabling space. Which type of media would best meet these requirements?
STP
***** UTP
coaxial
single-mode fiber
multimode fiber

5. What does the term “attenuation” mean in data communication?
***** loss of signal strength as distance increases
time for a signal to reach its destination
leakage of signals from one cable pair to another
strengthening of a signal by a networking device

ccna-1-modul11

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1. Users in the network are experiencing slow response time when doing file transfers to a remote server. What command could be issued to determine if the router has experienced any input or output errors?
show running-config
show startup-config
***** show interfaces
show ip route
show version
show memory

2. Refer to the exhibit. A technician applies the configuration in the exhibit to a clean router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command?
enable password classline console 0password ccna
enable secret ciscoenable password classline console 0password ccna
enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password classline console 0password ccna
enable secret ciscoenable password 7 14141E0A1F17line console 0password 7 020507550A
***** enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password 7 14141E0A1F17line console 0password 7 020507550A

3. Refer to the exhibit. A network administrator on HostA has problems accessing the FTP server. Layer three connectivity testing was successful from HostA to the S1 interface of RouterB. Which set of commands will allow the network administrator to telnet to RouterB and run debug commands?
RouterB(config)# enable secret class

RouterB(config)# line vty 0 4

RouterB(config-if)# login
RouterB(config)# enable secret class

RouterB(config)# line vty 0 2

RouterB(config-vty)# password cisco

RouterB(config-vty)# login
***** RouterB(config)# enable secret class

RouterB(config)# line vty 0

RouterB(config-line)# password cisco

RouterB(config-line)# login
RouterB(config)# enable secret class

RouterB(config)# line aux 0

RouterB(config-line)# password cisco

RouterB(config-line)# login
RouterB(config)# enable secret class

RouterB(config)# line aux 0

RouterB(config-vty)# password cisco

RouterB(config-vty)# login

4. Refer to the exhibit. The output is shown for the show ip route command executed on Router A. What does the IP address 192.168.2.2 represent?
Gateway for the 192.168.1.0 network
Gateway for the 192.168.3.0 network
IP assigned to the serial port on Router A
***** IP assigned to the serial port on Router B

5. What command is used to change the default router name to Fontana?
Router# name Fontana
Router# hostname Fontana
Router(config)# name Fontana
***** Router(config)# hostname Fontana

ccna-1-final

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1 A PC can not connect to any remote websites, ping its default gateway, or ping a printer that is functioning properly on the local network segment. Which action will verify that the TCP/IP stack is functioning correctly on this PC?
Use the ipconfig /all command at the host’s command prompt.
X Use the ping 127.0.0.1 command at the command prompt.
Use the traceroute command at the command prompt to identify any failures on the path to the gateway.
Use FTP to check for connectivity to remote sites.
Download a troubleshooting tool from the PC manufacturer’s website.

2 Refer to the exhibit. Which set of devices contains only intermediary devices?
X A, B, D, G
A, B, E, F
C, D, G, I
G, H, I, J

3 Refer to the exhibit. When computer A sends a frame to computer D, what computers receive the frame?
X only computer D
only computer A and computer D
only computer B, computer C, and computer D
all computers

4 Which password is automatically encrypted when it is created?
vty
aux
console
X enable secret
enable password

5 Which three statements characterize the transport layer protocols? (Choose three.)
X TCP and UDP port numbers are used by application layer protocols.
TCP uses port numbers to provide reliable transportation of IP packets.
UDP uses windowing and acknowledgments for reliable transfer of data.
X TCP uses windowing and sequencing to provide reliable transfer of data.
X TCP is a connection-oriented protocol. UDP is a connectionless protocol.

ccna-2-modul1

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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.

2. 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.

 

3. 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.

 

4. 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.

5. 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

 

6. 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.

7. 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?

Host 1 and host 2 are on different networks.

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

packet switching
segmentation of broadcast domains
selection of best path based on logical addressing
9. 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.

 

 

10. 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

 

11. 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.

 

 

12. 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

 

13. 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

 

 

14. Which of the following is the correct flow of routines for a router startup?
load bootstrap, load IOS, apply configuration

 

15. 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

 

 

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

 

17. 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.

 

 

18. 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

 

19. Which interfaces in the exhibit could be used for a leased line WAN connection? (Choose two.)
1
4

 

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

 

21. 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

 

22. What is the default sequence for loading the configuration file?
NVRAM, TFTP, CONSOLE

 

23.  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-modul2

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1. Which of the following are displayed by the Router# show cdp neighbors command? (Choose three.)
platform
holdtime
local interface
2. Why is it advisable to enter a next-hop IP address when creating a static route whose exit interface is an Ethernet network?
In a multi-access network, the router cannot determine the next-hop MAC address for the Ethernet frame without a next-hop address.

 

3. The output of the Router# show interfaces serial 0/1 command displays the following:
Serial0/1 is up, line protocol is down.
What is the most likely cause for the line protocol being down?
No clock rate has been set.

4. A static route that points to the next hop IP will have what administrative distance and metric in the routing table?
administrative distance of 1 and metric of 0

5. Refer to the exhibit. What two commands will change the next-hop address for the 10.0.0.0/8 network from 172.16.40.2 to 192.168.1.2? (Choose two.)
A(config)# no ip route 10.0.0.0 255.0.0.0 172.16.40.2
A(config)# ip route 10.0.0.0 255.0.0.0 192.168.1.2

ccna-2-modul3

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1. Which two statements correctly describe the concepts of administrative distance and metric? (Choose two.)

Administrative distance refers to the trustworthiness of a particular route.

Routes with the smallest metric to a destination indicate the best path.

2. Refer to the exhibit. Which statement correctly describes how R1 will determine the best path to R2?

R1 will install an EIGRP route using network B in its routing table because the administrative distance of EIGRP is lower than RIP.

3. Which two statements are true regarding classless routing protocols? (Choose two.)

sends subnet mask information in routing updates

allows for use of both 192.168.1.0/30 and 192.168.1.16/28 subnets in the same topology

4. Which command would the network administrator issue to determine if load balancing is in effect on a router?

show ip route

5. Which statement is true regarding routing protocols?

EIGRP uses DUAL to calculate the shortest path and can be configured to do unequal cost load balancing.