Retreat KPS MABA POLITEKNIK POS INDONESIA 2014

CCNA 1 Chapter 4

1.

ccna 1 chapter 4 answers 100% 2011

Refer to the exhibit. What two pieces of information can be determined from the output that is shown? (Choose two.)
The local host is using three client sessions.
The local host is using web sessions to a remote server.
The local host is listening for TCP connections using public addresses.
The local host is using well-known port numbers to identify the source ports.
The local host is performing the three-way handshake with 192.168.1.101:1037.

2. After a web browser makes a request to a web server that is listening to the standard port, what will be the source port number in the TCP header of the response from the server?
13
53
80
1024
1728

3. Which information is found in both the TCP and UDP header information?
sequencing
flow control
acknowledgments
source and destination

4. Which is an important characteristic of UDP?
acknowledgement of data delivery
minimal delays in data delivery
high reliability of data delivery
same order data delivery

5.

ccna 1 chapter 4 answers 100% 2011

Refer to the exhibit. Host A is using FTP to download a large file from Server 1. During the download process, Server 1 does not receive an acknowledgment from Host A for several bytes of transferred data. What action will Server 1 take as a result?
create a Layer 1 jam signal
reach a timeout and resend the data that needs to be acknowledged
send a RESET bit to the host
change the window size in the Layer 4 header

6.

ccna 1 chapter 4 answers 100% 2011

Refer to the exhibit. In line 7 of this Wireshark capture, what TCP operation is being performed?
session establishment
segment retransmit
data transfer
session disconnect

7.

ccna 1 chapter 4 answers 100% 2011

Refer to the exhibit. The initial TCP exchange of data between two hosts is shown in the exhibit. Assuming an initial sequence number of 0, what sequencenumber will be included in Acknowledgment 2 if Segment 6 is lost?
2
3
6
1850
3431
3475

8. Why is flow control used for TCP data transfer?
to synchronize equipment speed for sent data
to synchronize and order sequence numbers so data is sent in complete numerical order
to prevent the receiver from being overwhelmed by incoming data
to synchronize window size on the server
to simplify data transfer to multiple hosts

9. During a TCP communication session, if the packets arrive to the destination out of order, what will happen to the original message?
The packets will not be delivered.
The packets will be retransmitted from the source.
The packets will be delivered and reassembled at the destination.
The packets will be delivered and not reassembled at the destination.

10. With TCP/IP data encapsulation, which range of port numbers identifies all well-known applications?
0 to 255
256 to 1022
0 to 1023
1024 to 2047
49153 to 65535

11. Which transport layer protocol provides low overhead and would be used for applications which do not require reliable data delivery?
TCP
IP
UDP
HTTP
DNS

12. What are two features of the User Datagram Protocol (UDP)? (Choose two.)
flow control
low overhead
connectionless
connection-oriented
sequence and acknowledgements

13. What mechanism is used by TCP to provide flow control as segments travel from source to destination?
sequence numbers
session establishment
window size
acknowledgments

14. What is dynamically selected by the source host when forwarding data?
destination logical address
source physical address
default gateway address
source port

15. Why are port numbers included in the TCP header of a segment?
to indicate the correct router interface that should be used to forward a segment
to identify which switch ports should receive or forward the segment
to determine which Layer 3 protocol should be used to encapsulate the data
to enable a receiving host to forward the data to the appropriate application
to allow the receiving host to assemble the packet in the proper order

16. Which two options represent Layer 4 addressing? (Choose two.)
identifies the destination network
identifies source and destination hosts
identifies the communicating applications
identifies multiple conversations between the hosts
identifies the devices communicating over the local media

17. Which three features allow TCP to reliably and accurately track the transmission of data from source to destination?
encapsulation
flow control
connectionless services
session establishment
numbering and sequencing
best effort delivery

18. Which OSI model layer is responsible for regulating the flow of information from source to destination, reliably and accurately?
application
presentation
session
transport
network

19.

ccna 1 chapter 4 answers 100% 2011

Based on the transport layer header shown in the diagram, which of the following statements describe the established session? (Choose two.)
This is a UDP header.
**This contains a Telnet request.
This contains a TFTP data transfer.
The return packet from this remote host will have an Acknowledgement Number of 43693.
**This is a TCP header.

20. Which event occurs during the transport layer three-way handshake?
The two applications exchange data.
**TCP initializes the sequence numbers for the sessions.
UDP establishes the maximum number of bytes to be sent.
The server acknowledges the bytes of data received from the client.

21.

ccna 1 chapter 4 answers 100% 2011

Refer to the exhibit. Host1 is in the process of setting up a TCP session with Host2. Host1 has sent a SYN message to begin session establishment. What happens next? 
Host1 sends a segment with the ACK flag = 0, SYN flag = 0 to Host2.
Host1 sends a segment with the ACK flag = 1, SYN flag = 0 to Host2.
Host1 sends a segment with the ACK flag = 1, SYN flag = 1 to Host2.
Host2 sends a segment with the ACK flag = 0, SYN flag = 1 to Host1.
Host2 sends a segment with the ACK flag = 1, SYN flag = 0 to Host1.
Host2 sends a segment with the ACK flag = 1, SYN flag = 1 to Host1.

CCNA 1 Chapter 3

1. What application layer protocol is commonly used to support for file transfers between a client and a server?
HTML
HTTP
FTP
Telnet

2. What are two forms of application layer software? (Choose two.)
applications
dialogs
requests
services
syntax

3. A network administrator is designing a network for a new branch office of twenty-five users. What are the advantages of using a client-server model? (Choose two.)
centralized administration
does not require specialized software
security is easier to enforce
lower cost implementation
provides a single point of failure

4. What is the purpose of resource records in DNS?
temporarily holds resolved entries
used by the server to resolve names
sent by the client to during a query
passes authentication information between the server and client

5. What is the automated service that matches resource names with the required IP address?
HTTP
SSH
FQDN
DNS
Telnet
SMTP

6. What three protocols operate at the Application layer of the OSI model? (Choose three.)
ARP
DNS
PPP
SMTP
POP
ICMP

7. What are three properties of peer-to-peer applications? (Choose three.)
acts as both a client and server within the same communication.
requires centralized account administration.
hybrid mode includes a centralized directory of files.
can be used in client-server networks.
requires a direct physical connection between devices.
centralized authentication is required.

8. Which application layer protocols correctly match a corresponding function? (Choose two.)
DNS dynamically allocates IP addresses to hosts
HTTP transfers data from a web server to a client
POP delivers email from the client to the server email server
SMTP supports file sharing
Telnet provides a virtual connection for remote access

9. Which email components are used to forward mail between servers? (Choose two.)
MDA
IMAP
MTA
POP
SMTP
MUA

10. As compared to SSH, what is the primary disadvantage of telnet?
not widely available
does not support encryption
consumes more network bandwidth
does not support authentication

11. Which statements are correct concerning the role of the MTA in handling email? (Choose three.)
routes email to the MDA on other servers
receives email from the client’s MUA
receives email via the POP3 protocol
passes email to the MDA for final delivery
uses SMTP to route email between servers
delivers email to clients via the POP3 protocol

12. Which two protocols are used to control the transfer of web resources from a web server to a client browser? (Choose two.)
ASP
FTP
HTML
HTTP
HTTPS
IP

13. A small home network has been installed to interconnect three computers together for gaming and file sharing. What two properties represent this network type? (Choose two.)
User accounts are centralized.
Security is difficult to enforce.
Specialized operating system software is required.
File permissions are controlled by a single computer.
A computer that responds to a file sharing request is functioning as a server.

14. Which layer of the OSI model supplies services that allow user to interface with the network?
physical
session
network
presentation
application
transport

15.

ccna 1 chapter 3 answers 100%

Refer to the exhibit. What is the destination port for the communication that is represented on line 5?
80
1261
15533
3912
65520

16. What are two characteristics of peer-to-peer networks? (Choose two.)
scalable
one way data flow
decentralized resources
centralized user accounts
resource sharing without a dedicated server

17. What application layer protocol describes the services that are used for file sharing in Microsoft networks?
DHCP
DNS
SMB
SMTP
Telnet

18. What are two characteristics of clients in data networks? (Choose two.)
use daemons
initiate data exchanges
are repositories of data
may upload data to servers
listen for requests from servers

19. What is the role of the OSI application layer?
provides segmentation of data
provides encryption and conversion of data
provides the interface between the applications on either end of the network
provides control of all the data flowing between the source and destination devices

20. How does the application layer on a server usually process multiple client request for services?
ceases all connections to the service
denies multiple connections to a single daemon
suspends the current connection to allow the new connection
uses support from lower layer functions to distinguish between connections to the service

Cisco chapter 1

1 
What are two structured engineering principles necessary for successful implementation of a network design? (Choose two.)

modularity*
security
availability
quality of service
resiliency*

2 
What is an important first consideration when starting to design a network?

size of the network*
access security
protocols to be used
type of applications

3 
Which layer of the Cisco Collaboration Architecture contains unified communications and conference software such as Cisco WebEx Meetings, WebEx Social, Cisco Jabber, and TelePresence?

service provider edge
enterprise WAN
applications and devices*
services module

4 
In which layer of the hierarchical enterprise LAN design model would PoE for VoIP phones and access points be considered?

core
physical
data link
access*
distribution

5 
Which network module is the fundamental component of a campus design?

access-distribution module*
services module
data center
enterprise edge

6 
In a hierarchical network design, which layers may be combined into a collapsed core for smaller networks?

core, distribution, and access
distribution and access
core and access
core and distribution*

7

Refer to the exhibit. Which type of ISP connectivity to the service provider edge is being used by company A?

dual-homed
dual-multihomed
single-homed
multihomed*

8 
What is one advantage to designing networks in building block fashion for large companies?

mobility
redundancy
increased network access time
failure isolation*

9 
A network engineer wants to redesign the wireless network and make use of wireless network controllers that manage the many deployed wireless access points. In which network design module of the campus network architecture would the centralized wireless network controllers be found?

services*
access-distribution
enterprise edge
data center

10 
Which two devices would commonly be found at the access layer of the hierarchical enterprise LAN design model? (Choose two.)

Layer 3 device
firewall
access point* 
Layer 2 switch*
modular switch

11 
Which approach in networking allows for network changes, upgrades, or the introduction of new services in a controlled and staged fashion?

modular*
network module
borderless
static

12

Refer to the exhibit. Which type of Cisco hierarchical LAN design model is used at school site 1?

7 layer
two-tier collapsed core*
three-tier
3 layer

13 
Which three network architectures have been introduced by Cisco to address the emerging technology challenges created by the evolving business models? (Choose three.)

Cisco Collaboration* 
Cisco Data Center* 
Cisco Borderless*
Cisco Enterprise Edge
Cisco Enterprise Campus
Cisco Enterprise Branch

14 
Which Cisco technology allows diverse network devices to connect securely, reliably, and seamlessly to enterprise network resources?

Cisco AnyConnect*
enterprise edge
building distribution
service provider edge

15 
The network design for a college with users at five sites is being developed. Where in the campus network architecture would servers used by all users be located?

services
enterprise edge
data center*
access-distribution

16 
What is creating a new challenge for IT departments by changing the border of the enterprise network?

tablets*
company-owned desktops
energy costs
access layer switching

17 
Which network architecture functions through a combination of technologies that include wired, wireless, security, and more?

Cisco Borderless*
Cisco Enterprise Campus
Cisco Enterprise Edge
Cisco Enterprise Branch

18 
Which network architecture combines individual components to provide a comprehensive solution allowing people to cooperate and contribute to the production of something?

Cisco Enterprise Campus Architecture
Cisco Enterprise Branch Architecture
Cisco Borderless Network Architecture
Cisco Collaboration Architecture*

19 
Fill in the blank.
Reducing the complexity of network design by dividing a network into smaller
areas is an example of a ” hierarchical ” network model.​

20 
Fill in the blank. Use the abbreviation.
Under the Cisco Enterprise Edge module, the submodule that provides remote access
including authentication and IPS appliances is the ” VPN ” and remote access submodule.

21

Place the options in the following order:

- not scored – 
core 
ccess 
distribution

22

Place the options in the following order:
[+] campus core 
[+] building distribution 
[+] data center

[#] VPN and remote access 
[#] DMZ 
[#] e-commerce

[+] Order does not matter within this group.
[#] Order does not matter within this group.

Cisco chapter 6

CCNA 4 Chapter 6 v5 0 Exam Answers

1. What are two Layer 2 WAN technologies that can provide secure remote connections between corporate branch offices? (Choose two.)

LTE
Frame Relay
leased lines
QoS
IPsec

2. Which two OSI Layer 1 specifications does DOCSIS define for a cable Internet connection? (Choose two.)

a deterministic media access method
channel bandwidth
modulation technique
VPN tunneling requirements
the separation of the voice and data transmissions

3. Which medium is used for delivering data via DSL technology through PSTN?

fiber
copper
radifrequency
wireless

4. A company is looking for the least expensive broadband solution that provides at least 10 Mb/s download speed. The company is located 5 miles from the nearest provider. Which broadband solution would be appropriate?

satellite
DSL
WiMax
cable

5. What are twcharacteristics of a PPPoE configuration on a Cisccustomer router? (Choose two.)

The PPP configuration is on the dialer interface.
An MTU size of 1492 bytes is configured on the Ethernet interface.
The Ethernet interface does not have an IP address.
The customer router CHAP username and password are independent of what is configured on the ISP router.
The dialer pool command is applied tthe Ethernet interface tlink it tthe dialer interface.

6. Fill in the blank.

DOCSIS specifies the ”MAC“ sub-layer as a Layer 2 requirement that defines either a deterministic access method, TDMA, or S-CDMA.

7. Fill in the blank. Use only an acronym.

“PPPoE” creates a PPP tunnel through the DSL connection for the purpose of sending PPP frames.

8. What functionality is required on routers tprovide remote workers with VoIP and videoconferencing capabilities?

PPPoE
QoS
VPN
IPsec

9. Which broadband wireless technology is based on the 802.11 standard?

CDMA
municipal Wi-Fi
UMTS
WiMAX

10. Why is the MTU for a PPPoE DSL configuration reduced from 1500 bytes t1492?

to enable CHAP authentication
to accommodate the PPPoE headers
to reduce congestion on the DSL link
to establish a secure tunnel with less overhead

11. Which standard specifies the channel frequencies and the deterministic access method of cable networks?

DOCSIS
802.16
LTE
WIMAX

12. Which two network components does a teleworker require to connect remotely and securely from home to the corporate network? (Choose two.)

VPN client software or VPN-enabled router
broadband Internet connection
VPN server or concentrator
authentication server
multifunction security appliance

13. In which layer of the TCP/IP protocol model does IPsec apply security to network data?

application
transport
internet
network
access

14. Which cable network communication technology is secure, extremely resistant to noise, and employs spread-spectrum technology?

CDMA
S-CDMA
FDMA
TDMA

15. How is voice traffic affected when the customer uses ADSL technology?

No special equipment is needed to separate voice and data signals.
Voice traffic is interrupted if the ADSL service fails.
Voice signals are on a separate wire pair from ADSL signals.
ADSL signals can distortvoice transmissions.

16. Which technology provides a secure connection between a SOHO and the headquarters office?

PPPoE
QoS
WiMax
VPN

17. What are two characteristics of a PPPoE configuration on a Cisco customer router? (Choose two.)

The customer router CHAP username and password are independent of what is configured on the ISP router.
The PPP configuration is on the dialer interface.
An MTU size of 1492 bytes is configured on the Ethernet interface.
The Ethernet interface does not have an IP address.
The dialer pool command is applied to the Ethernet interface to link it to the dialer interface.

18. What advantage does DSL have compared to cable technology?

DSL upload and download speeds are always the same.
DSL is not a shared medium.
DSL is faster.
DSL has no distance limitations.

19. What are two disadvantages of employing teleworkers in an organization? (Choose two.)

slower customer service response times
increased usage of sick or vacation days
increased difficulty of tracking task progress
increase in office expenses
the need to implement a new management style

20.

Place the options in the following order: 
WiMax 
Cellular/Mobile 
Satellite 
– not scored -

21. Which DSL technology provides higher downstream bandwidth to the user than upstream bandwidth?

SDSL
TDMA
CDMA
ADSL

22. Which networking technology will ensure reliable and secure remote access when a teleworker connects to a corporate network?

an encrypted VPN tunnel 
routers with QoS capability
broadband (cable or DSL) access to the corporate network
a VoIP and videoconferencing capable connection

23. Which broadband technology would be best for a user that needs remote access when traveling in mountains and at sea?

satellite 
Wi-Fi Mesh
mobile broadband
WiMax

24. Which type of long distance telecommunication technology provides point-to-point connections and cellular access?

WiMax
satellite
mobile broadband
municipal Wi-Fi

25. What functionality is required on routers to provide remote workers with VoIP and videoconferencing capabilities?

QoS
VPN
PPPoE
IPsec

26
A company is looking for the least expensive broadband solution that provides at least 10 Mb/s download speed. The company is located 5 miles from the nearest provider. Which broadband solution would be appropriate?

satellite
DSL
WiMax
cable

Cisco chapter 5

CCNA 4 Chapter 5 v5 0 Exam Answers

1 Typically, which network device would be used to perform NAT for a corporate environment?

DHCP server
host device
router
server
switch

2 What is the group of public IPv4 addresses used on a NAT-enabled router known as?

outside local addresses
inside local addresses
inside global addresses
outside global addresses

3 When NAT is employed in a small office, which address type is typically used for hosts on the local LAN?

private IP addresses
global public IP addresses
Internet-routable addresses
both private and public IP addresses

4 Which version of NAT allows many hosts inside a private network to simultaneously use a single inside global address for connecting to the Internet?

PAT
static NAT
dynamic NAT
port forwarding

5 Which type of NAT maps a single inside local address to a single inside global address?

dynamic
static
port address translation
overloading

6 Several key servers in an organization must be directly accessible from the Internet. What addressing policy should be implemented for these servers?

Use dynamic NAT to provide addresses for the servers.
Place all of the servers in their own Class C private subnet.
Use DHCP to assign addresses from the pool of Class B addresses.
Assign static internal addresses and public external addresses to each of the servers

7 What is a disadvantage of NAT?

There is no end-to-end addressing.
The router does not need to alter the checksum of the IPv4 packets.
The internal hosts have to use a single public IPv4 address for external communication.
The costs of readdressing hosts can be significant for a publicly addressed network.

8

Refer to the exhibit. What has to be done in order to complete the static NAT configuration on R1?

R1 should be configured with the command ip nat inside source static 209.165.200.1 192.168.11.11.
R1 should be configured with the command ip nat inside source static 209.165.200.200 192.168.11.11.
Interface S0/0/0 should be configured with the command ip nat outside.
Interface Fa0/0 should be configured with the command no ip nat inside.

9

Refer to the exhibit. R1 is configured for NAT as displayed. What is wrong with the configuration?

Access-list 1 is misconfigured.
NAT-POOL2 is not bound to ACL 1.
Interface Fa0/0 should be identified as an outside NAT interface.
The NAT pool is incorrect.

10 Which statement accurately describes dynamic NAT?

It always maps a private IP address to a public IP address.
It provides an automated mapping of inside local to inside global IP addresses.
It provides a mapping of internal host names to IP addresses.
It dynamically provides IP addressing to internal hosts.

11 A network administrator configures the border router with the command R1(config)# ip nat inside source list 4 pool corp. What is required to be configured in order for this particular command to be functional?

a NAT pool named corp that defines the starting and ending public IP addresses
an access list named corp that defines the private addresses that are affected by NAT
an access list numbered 4 that defines the starting and ending public IP addresses
ip nat outside to be enabled on the interface that connects to the LAN affected by the NAT
a VLAN named corp to be enabled and active and routed by R1

12 When dynamic NAT without overloading is being used, what happens if seven users attempt to access a public server on the Internet when only six addresses are available in the NAT pool?

No users can access the server.
The request to the server for the seventh user fails.
All users can access the server.
The first user gets disconnected when the seventh user makes the request.

13 A network engineer has configured a router with the command ip nat inside source list 4 pool corp overload. Why did the engineer use the overload option?

The company has more private IP addresses than available public IP addresses.
The company needs to have more public IP addresses available to be used on the Internet.
The company router must throttle or buffer traffic because the processing power of the router is not enough to handle the normal load of external-bound Internet traffic.
The company has a small number of servers that should be accessible by clients from the Internet.

14

Refer to the exhibit. What will be the effect of entering the command that is shown in the exhibit on R2 as part of the dynamic NAT configuration?

It will define a pool of addresses for translation.
It will identify an inside NAT interface.
It will bind NAT-POOL1 with ACL 1.
It will define the source ACL for the external interface.

15 Which configuration would be appropriate for a small business that has the public IP address of 209.165.200.225/30 assigned to the external interface on the router that connects to the Internet?

access-list 1 permit 10.0.0.0 0.255.255.255
ip nat inside source list 1 interface serial 0/0/0 overload

access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp

access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload

access-list 1 permit 10.0.0.0 0.255.255.255
ip nat pool comp 192.0.2.1 192.0.2.8 netmask 255.255.255.240
ip nat inside source list 1 pool comp overload
ip nat inside source static 10.0.0.5 209.165.200.225

16 What are two required steps to configure PAT? (Choose two.)

Define a pool of global addresses to be used for overload translation.
Define a standard access list denying the addresses that should be translated.
Define the range of ports to be used.
Identify the inside interface.
Define a standard access list that allow the outside global addresses to be used.

17

Refer to the exhibit. What is the purpose of the command marked with an arrow shown in the partial configuration output of a Cisco broadband router?

defines which addresses can be translated
defines which addresses are allowed into the router
defines which addresses are assigned to a NAT pool
defines which addresses are allowed out of the router

18 What is the purpose of port forwarding?

Port forwarding allows an external user to reach a service on a private IPv4 address that is located inside a LAN.
Port forwarding allows users to reach servers on the Internet that are not using standard port numbers.
Port forwarding allows an internal user to reach a service on a public IPv4 address that is located outside a LAN.
Port forwarding allows for translating inside local IP addresses to outside local addresses.

19 What is a characteristic of unique local addresses?

They allow sites to be combined without creating any address conflicts.
They are designed to improve the security of IPv6 networks.
Their implementation depends on ISPs providing the service.
They are defined in RFC 3927.

20

Refer to the exhibit. Based on the output that is shown, what type of NAT has been implemented?

dynamic NAT with a pool of two public IP addresses
PAT using an external interface
static NAT with one entry
static NAT with a NAT pool

21

Refer to the exhibit. The NAT configuration applied to the router is as follows:
ERtr(config)# access-list 1 permit 10.0.0.0 0.255.255.255
ERtr(config)# ip nat pool corp 209.165.201.6 209.165.201.30 netmask 255.255.255.224
ERtr(config)# ip nat inside source list 1 pool corp overload
ERtr(config)# ip nat inside source static 10.10.10.55 209.165.201.4
ERtr(config)# interface gigabitethernet 0/0
ERtr(config-if)# ip nat inside
ERtr(config-if)# interface serial 0/0/0
ERtr(config-if)# ip nat outside

Based on the configuration and the output shown, what can be determined about the NAT status within the organization?

Dynamic NAT is working, but static NAT is not.
Static NAT is working, but dynamic NAT is not.
NAT is working.
Not enough information is given to determine if both static and dynamic NAT are working. *

22 Based on the configuration and the output shown, what can be determined about the NAT status within the organization?

NAT is working.
Static NAT is working, but dynamic NAT is not.
Dynamic NAT is working, but static NAT is not.
Not enough information is given to determine if both static and dynamic NAT are working.

23

Open the PT Activity. Perform the tasks in the activity instructions and then answer the question.
What problem is causing PC-A to be unable to communicate with the Internet?

The static route should not reference the interface, but the outside address instead.
This router should be configured to use static NAT instead of PAT.
The ip nat inside source command refers to the wrong interface.
The access list used in the NAT process is referencing the wrong subnet.
The NAT interfaces are not correctly assigned.

24

Place the options in the following order: 
– not scored – 
step 5 
step 2 
step 4 
step 1 
step 3

25 
What are two of the required steps to configure PAT? (Choose two.)

Create a standard access list to define applications that should be translated.
Identify the inside interface.*
Define the range of source ports to be used.
Define the hello and interval timers to match the adjacent neighbor router.
Define a pool of global addresses to be used for overload translation.*