CCNA 3 version 4 CHAPTER 1

1
What is a benefit of having an extranet?

It provides web-like access to company information for employees only.

It limits access to corporate information to secure VPN or remote access connections only.

It allows customers and partners to access company information by connecting to a public web server.

It allows suppliers and contractors to access confidential internal information using controlled external connections.


2
Why would a network administrator want to limit the size of failure domains when designing a network?

reduces the effect of Ethernet collisions

reduces the impact of a key device or service failure

reduces the impact of Internet congestion on critical traffic

reduces the impact of blocking broadcast packets at the edge of the local network


3
The ABC Corporation implements the network for its new headquarters using the Cisco Enterprise Architecture. The network administrator wants to filter the traffic from and to the outside world. Where should the administrator deploy a firewall device?

server farm

enterprise edge

enterprise campus

service provider edge


4
Which two measures help ensure that a hardware problem does

not cause an outage in an enterprise LAN that supports mission critical services? (Choose two.)

providing failover capability

installing redundant power supplies

purchasing more bandwidth from the ISP

implementing broadcast containment with VLANs

installing routers that can handle a greater amount of throughput


5
Which two solutions would an enterprise IT department use to facilitate secure intranet access for remote workers? (Choose two.)

VPN

NAT

user authentication

client firewall software

packet sniffing


6
How does a VPN work to support remote user productivity?

It uses SSL to encrypt remote user logins to the corporate intranet.

It uses secure Telnet for remote user connections to internal network devices.

It creates a virtual circuit that allows real-time communications between any two Internet endpoints.

It uses encapsulation to create a secure tunnel for transmission of data across non-secure networks.


7
What are two important characteristics or functions of devices at the Enterprise Edge? (Choose two.)

providing Internet, telephone, and WAN services to the enterprise network

providing a connection point for end-user devices to the enterprise network

providing high-speed backbone connectivity with redundant connections

providing intrusion detection and intrusion prevention to protect the network against malicious activity

providing packet inspection to determine if incoming packets should be allowed on the enterprise network


8
What is the purpose of the Cisco Enterprise Architecture?

remove the three-layer hierarchical model and use a flat network approach

divide the network into functional components while still maintaining the concept of Core, Distribution, and Access Layers

provide services and functionality to the core layer by grouping various components into a single component located in the access layer

reduce overall network traffic by grouping server farms, the management server, corporate intranet, and e-commerce routers in the same layer


9
Which two statements are reasons why UDP is used for voice and video traffic instead of TCP? (Choose two.)

TCP requires all data packets to be delivered for the data to be usable.

The acknowledgment process of TCP introduces delays that break the streams of data.

UDP does not have mechanisms for retransmitting lost packets.

UDP tolerates delays and compensates for them.

TCP is a connectionless protocol that provides end-to-end reliability.

UDP is a connection-oriented protocol that provides end-to-end reliability.


10
In which functional area of the Cisco Enterprise Architecture should IDS and IPS be located to detect and prevent services from accessing hosts?
Enterprise Campus
Edge Distribution
Enterprise Edge
Service Provider Edge


11
Which statement describes the difference between an enterprise WAN and an enterprise extranet?
An enterprise WAN is designed to interconnect local LANs, while an enterprise extranet is designed to interconnect remote branch offices.
An enterprise WAN is designed to interconnect branch offices, while an enterprise extranet is designed to give access to external business partners.
An enterprise WAN is designed to provide remote access for its teleworkers, while an enterprise extranet is designed to provide Internet connectivity for the enterprise.
An enterprise WAN is designed to provide Internet connectivity for the enterprise, while an enterprise extranet is designed to provide remote access to the enterprise network for teleworkers.


12
A business consultant must use Internet websites to research a report on the e-business strategies of several firms and then electronically deliver the report to a group of clients in cities throughout the world. Which two teleworker tools can the consultant use to accomplish this project? (Choose two.)
VoIP
VPN
HTTP
Telnet
email


13
What does VoIP provide to telecommuters?
high-quality, live-video presentations
real-time voice communications over the Internet
ability to share desktop applications simultaneously
secure, encrypted data transmissions through the Internet


14
Which three functions are performed at the Distribution Layer of the hierarchical network model? (Choose three.)
forwards traffic that is destined for other networks
isolates network problems to prevent them from affecting the Core Layer
allows end users to access the local network
provides a connection point for separate local networks
transports large amounts of data between different geographic sites
forwards traffic to other hosts on the same logical network


15
What is the main purpose of the Access Layer in a hierarchically designed network?
performs routing and packet manipulation
supplies redundancy and failover protection
provides a high-speed, low-latency backbone
serves as a network connection point for end-user devices



16
Which functional component of the Cisco Enterprise Architecture is responsible for hosting internal servers?

enterprise campus

enterprise edge

service provider edge

building distribution


17
Which task would typically only require services located at the access layer of the hierarchical design model?

connecting to the corporate web server to update sales figures

using a VPN from home to send data to the main office servers

printing a meeting agenda on a local departmental network printer

placing a VoIP call to a business associate in another country

responding to an e-mail from a co-worker in another department


18
A remote user needs to access a networking device on the internal network of the company. The transactions between the remote user and the device must be secure. Which protocol enables this to happen securely?

HTTP

SSH

Telnet

FTP


19
Why is TCP the preferred Layer 4 protocol for transmitting data files?

TCP is more reliable than UDP because it requires lost packets to be retransmitted.

TCP requires less processing by the source and destination hosts than UDP.

UDP introduces delays that degrade the quality of the data applications.

TCP ensures fast delivery because it does not require sequencing or acknowledgements.


20
What can be found at the enterprise edge?

Internet, VPN, and WAN modules

Internet, PSTN, and WAN services

server farms and network management

campus infrastructure, including access layer devices

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ccna 3 version 4 CHAPTER 2

1
What type of connection point is a point of presence (POP)?
between a client and a host
between two local networks
between a computer and a switch
between an ISP and an Enterprise network

2
Which type of network map shows the location of hosts, network devices, and media?
physical topology
logical topology
control plane
business continuity

3
It is crucial that network administrators be able to examine and configure network devices from their homes. Which two approaches allow this connectivity without increasing vulnerability to external attacks? (Choose two.)
Configure a special link at the POP to allow external entry from the home computer.
Set up VPN access between the home computer and the network.
Install a cable modem in the home to link to the network.
Configure ACLs on the edge routers that allow only authorized users to access management ports on network devices.
Configure a server in the DMZ with a special username and password to allow external access.

4
A DoS attack crippled the daily operations of a large company for 8 hours. Which two options could be implemented by the network administrator to possibly prevent such an attack in the future? (Choose two.)
install security devices with IDS and IPS at the enterprise edge
reset all user passwords every 30 days
filter packets based on IP address, traffic pattern, and protocol
deny external workers VPN access to internal resources
ensure critical devices are physically secure and placed behind the demarc

5
Which device is responsible for moving packets between multiple network segments?
router
switch
CSU/DSU
IDS device

6
When searching for information about authentication methods and usernames of company personnel, where can a network administrator look?
Business Continuity Plan
Business Security Plan
Network Maintenance Plan
Service Level Agreement

7
A network manager wants to have processes in place to ensure that network upgrades do not affect business operations. What will the network manager create for this purpose?
business security plan
business continuity plan
service level agreement
network maintenance plan

8

Refer to the exhibit. Which statement is true about port Fa5/1?
When a violation is detected, the port will log the information to a syslog server.
When a violation is detected, the port will go into err-disable mode.
There have been 11 security violations since the last reload.
The port is currently in the shutdown state.


9
Which two situations require a network administrator to use out-of-band management to change a router configuration? (Choose two.)

Network links to the router are down.
No Telnet password has been configured on the router.
The administrator can only connect to the router using SSH.
The network interfaces of the router are not configured with IP addresses.
Company security policy requires that only HTTPS be used to connect to routers.


10
What information can an administrator learn using the show version command?
Cisco IOS filename
configured routing protocol
status of each interface
IP addresses of all interfaces

11
Which two router parameters can be set from interface configuration mode? (Choose two.)
IP address
Telnet password
hostname
console password
subnet mask
enable secret password

12
What is the maximum recommended cable length for Fast Ethernet over UTP?
50 meters
75 meters
100 meters
150 meters
13
Which two types of information should be included in a business continuity plan? (Choose two.)
maintenance time periods
intrusion monitoring records
offsite data storage procedures
alternate IT processing locations
problem resolution escalation steps

14
Which two pieces of information are documented in a logical topology map? (Choose two.)
physical cabling
service level agreements
IP addressing
hardware security devices
group information
facility floor plans
15
What is the demarcation?
physical point where the ISP responsibilty ends and the customer responsibilty begins
physical location where all server farm connections meet before being distributed into the Core
point of entry for outside attacks and is often vulnerable
point of entry for all Access Layer connections from the Distribution Layer devices

16
A network administrator must define specific business processes to implement if a catastrophic disaster prevents a company from performing daily business routines. Which portion of the network documentation is the administrator defining?
business security plan
business continuity plan
network solvency plan
service level agreement
network maintenance plan
17
A network administrator needs to configure Telnet access to a router. Which group of commands enable Telnet access to the router?
Router(config)# enable password class
Router(config)# line con 0
Router(config-line)# login
Router(config-line)# password cisco

Router(config)# ip host 192.168.1.1 NewYork
Router(config)# enable password cisco

Router(config)# line aux 0
Router(config-line)# login
Router(config-line)# password cisco

Router(config)# enable password class
Router(config)# line vty 0 4
Router(config-line)# login
Router(config-line)# password cisco

18
Which two devices protect a corporate network against malicious attacks at the enterprise edge ? (Choose two.)

demarc
IP security (IPSec)
Data Service Unit (DSU)
intrusion prevention system (IPS)
intrusion detection system (IDS)
19
Which three steps must be performed to remove all VLAN information from a switch but retain the rest of the configuration? (Choose three.)
Remove all VLAN associations from the interfaces.
Remove the 802.1q encapsulation from the interface.
Issue the command copy start run.
Issue the command delete flash:vlan.dat.
Issue the command erase start.
Reload the switch.

20
An investment company has multiple servers that hold mission critical data. They are worried that if something happens to these servers, they will lose this valuable information. Which type of plan is needed for this company to help minimize loss in the event of a server crash?
business security
business continuity
network maintenance
service level agreement

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CCNA 1 version 4 CHAPTER 1

1 What is the main storage drive used by servers, desktops, and laptops?

tape drive

*hard drive

optical drive (DVD)

floppy disk drive

2 Which adapter card enables a computer system to exchange information with other systems on a local network?

modem card

controller card

video card

sound card

*network interface card

3 What is the purpose of the ASCII code?

translates bits into bytes

interprets graphics digitally

translates digital computer language into binary language

*represents letters, characters, and numbers with bits

4 What two functions does a UPS provide that a surge protector does not ? (Choose two.)

*protects the computer from voltage surges

provides backup power from an internal battery

protects the computer from sudden voltage spikes

gives the user time to phone the electrical company

*gives the user time to safely shut down the computer if the power fails

provides backup power through a generator provided by the wall outlet

5 If a peripheral device is not functioning, what are three things you should do to solve the problem? (Choose three.)

*Use the testing functionality on the peripheral itself, if available.

*Verify that all cables are connected properly.

Disconnect all cables connected to the computer except those connected to the peripheral.

*Ensure that the peripheral is powered on.

Disconnect the peripheral and verify that the computer is operating normally.

Reload the computer operating system.

6 How many values are possible using a single binary digit?

1

*2

4

8

9

16

7 Which computer component is considered the nerve center of the computer system and is responsible for processing all of the data within the machine?

RAM

*CPU

video card

sound card

operating system

8 What are two benefits of hooking up a laptop to a docking station? (Choose two.)

Mobility is increased.

*An external monitor can be used.

*Alternate connectivity options may be available.

The keyboard can be changed to a QWERTY-style keyboard.

More wireless security options are available.

9 In newer operating systems, how are system resources assigned by default when components are installed?

manually assigned by the operating system

manually assigned by the administrator

statically assigned by the component to a preset resource

*dynamically assigned between the component and the operating system

10 Which two steps should be performed when installing a peripheral device? (Choose two.)

*Download and install the most current driver.

Connect the peripheral using any cable and any available port on the computer.

*Connect the peripheral using an appropriate cable or wireless connection.

Test the peripheral on another machine before installing it on the one where it will be used.

Check the computer documentation to see if the peripheral vendor is compatible with the PC vendor.

11 Why do servers often contain duplicate or redundant parts?

Servers require more power and thus require more components.

*Servers should be accessible at all times.

Servers can be designed as standalone towers or rack mounted.

Servers are required by networking standards to have duplicate parts.

12 What are two examples of output peripheral devices? (Choose two.)

*printer

*speakers

flash drive

external DVD

external modem

13 Which three terms describe different types of computers? (Choose three.)

operating system

network

*laptop

*desktop

Windows

*mainframe

14 A user plans to run multiple applications simultaneously on a computer. Which computer component is essential to accomplish this?

*RAM

NIC

video card

sound card

storage device

15 How is a server different from a workstation computer?

The server works as a standalone computer.

*The server provides services to clients.

The workstation has fewer applications installed.

The workstation has more users who attach to it.

X16 What are two advantages of purchasing a preassembled computer? (Choose two.)

*usually a lower cost

exact components may be specified

extended waiting period for assembly

*adequate for performing most general applications

suited for customers with special needs

17 What is a word processor?

It is a physical computer component.

*It is a program designed to perform a specific function.

It is a program that controls the computer resources.

It is a functional part of an operating system.

18 What can be used to prevent electrostatic discharge (ESD)?

dry and non humid conditions

carpeted floor

*grounding strap

uncluttered work space

19 Which component is designed to remove high-voltage spikes and surges from a power line so that they do not damage a computer system?

CPU

*surge suppressor

motherboard

hard drive

X1 20 What measurement is commonly associated with computer processing speed?

bits

pixels

*hertz

bytes

21 Applications can be grouped into general use software or industry specific software. What are two examples of industry specific software? (Choose two.)

CAD

*presentation

spreadsheet

word processing

*medical practice management

contacts/scheduling management

1 Administrators at a multi-campus college need access to their schedules wherever they go. Which computing device would be the most appropriate?

*PDA

laptop

desktop

tablet PC

cell phone

mainframe

17Because of the potentially dangerous voltage levels, which two devices should you not open unless you have been specifically trained to work on them? (Choose two.)

mouse

*printer

monitor

keyboard

hard drive

*power supply

19What characteristic of word processing software would make it a local application?

The application is shared between users.

The software is stored on the local hard drive.

The software is accessible through a web page.

*The software has the ability to manipulate text and graphics.

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CCNA 1 version 4 CHAPTER 9

1 Which two items should be added to the documentation following a troubleshooting event? (Choose two.)

final resolution

repetitive measures

number of people involved in the problem

accurate current network infrastructure diagrams

results of successful and unsuccessful troubleshooting steps

2 Identify two physical-layer network problems. (Choose two.)

hardware failure

software configuration

devices not able to ping

loose cable connections

device driver configuration

3 A PC is plugged into a switch and is unable to connect to the network. The UTP cable is suspected. What could be the problem?

A straight-through cable is being used

The connectors at both ends of the cable are RJ-45.

The RJ-45 connectors are crimped onto the cable jacket.

A crossover cable is being used.

4 Which two troubleshooting techniques are suitable for both home networks and large corporate networks? (Choose two.)

having a backup ISR

running network monitoring applications

documenting the troubleshooting process

keeping a record of system upgrades and software versions

keeping spare switches, routers, and other equipment available

5 Network baselines should be performed in which two situations? (Choose two.)

after the network is installed and running optimally

after a virus outbreak is discovered on the network

after major changes are implemented on the network

after several computers are added to the network

at the end of the work week

6 A technician is unsuccessful in establishing a console session between a PC and a Linksys integrated router. Both devices have power, and a cable is connected between them. Which two troubleshooting steps could help to diagnose this problem? (Choose two.)

Ensure the correct cable is used.

Ensure the SSID is the same on both devices.

Ensure both devices have the same IP address.

Ensure both devices have different subnet masks.

Ensure the encryption type on both devices match.

Ensure the link status LED on the integrated router is lit.

7 Only one workstation on a particular network cannot reach the Internet. What is the first troubleshooting step if the divide-and-conquer method is being used?

Check the NIC, and then check the cabling.

Check the workstation TCP/IP configuration.

Test all cables, and then test layer by layer up the OSI model.

Attempt to Telnet, and then test layer by layer down the OSI model.

8 Refer to the graphic. The wireless host cannot access the Internet, but the wired host can. What is the problem?

The host WEP key is incorrect.

The host IP address is incorrect.

The host subnet mask is incorrect.

The host default gateway is incorrect.

The integrated router internal IP address is incorrect.

The integrated router Internet IP address is incorrect.

9 Which three settings must match on the client and access point for a wireless connection to occur? (Choose three.)

SSID

authentication

MD5 checksum

antennae type

encryption key

MAC address filters

10 How does remote-access software help in the troubleshooting process?

Remote access uses a live chat feature.

Users have to be present so that they can view LEDs and change cables if necessary.

Diagnostics can be run without a technician being present at the site.

FAQs can be consulted more easily.

11 What command is used to determine the location of delay for a packet traversing the Internet?

ipconfig

netstat

nslookup

ping

tracert

12 What two items could be checked to verify connectivity between the router and the ISP? (Choose two.)

router status page

wireless card settings

router operating system version

local host operating system version

connectivity status as indicated by LEDs

13 Typically, help desk personnel assist end users in which two tasks? (Choose two.)

identifying when the problem occurred

determining if other users are currently logged into the computer

updating network diagrams and documentation

implementing the solution to the problem

running a network baseline test

determining the cost of fixing the problem

14 Which troubleshooting method begins by examining cable connections and wiring issues?

top-down

bottom-up

substitution

divide-and-conquer

15 Refer to the graphic. What configuration is incorrect in the network shown? (CROSSOVER)

The host IP address is incorrect.

The host subnet mask is incorrect.

The host default gateway is incorrect.

The wired connection is the wrong type of cable.

The Linksys integrated router does not support wireless.

16 What command is used to determine if a DNS server is providing name resolution?

ipconfig

netstat

nslookup

tracert

17 When acting as a DHCP server, what three types of information can an ISR provide to a client? (Choose three.)

physical address

MAC address

default gateway

static IP address

dynamic IP address

DNS server address

18 Which ipconfig command requests IP configuration from a DHCP server?

ipconfig

ipconfig /all

ipconfig /renew

ipconfig /release

19 A technician suspects that a Linksys integrated router is the source of a network problem. While troubleshooting, the technician notices a blinking green activity LED on some of the ports. What does this indicate?

Self-diagnostics have not completed.

The power supply is the source of the problem.

The ports are operational and are receiving traffic.

The ports are operational, but no traffic is flowing.

There are no cables plugged into those ISR ports.

The ports have cables plugged in, but they are not functional.

20 A customer called the cable company to report that the Internet connection is unstable. After trying several configuration changes, the technician decided to send the customer a new cable modem to try. What troubleshooting technique does this represent?

top-down

bottom-up

substitution

trial-and-error

divide-and-conquer

21 Refer to the graphic. What configuration is incorrect in the network shown? (STRAIGHT)

The host IP address is incorrect.

The host subnet mask is incorrect.

The host default gateway is incorrect.

The wired connection is the wrong type of cable.

The Linksys integrated router does not support wireless.

22 What should a network administrator do first after receiving a call from a user who cannot access the company web server?

Reboot the web server.

Replace the NIC of the computer.

Ask the user to log off and log on again.

Ask the user what URL has been typed and what error message displays.

23 A technician is troubleshooting a security breach on a new wireless access point. Which three configuration settings make it easy for hackers to gain access? (Choose three.)

configuring NAT

broadcasting the SSID

using open authentication

enabling MAC address filters

using the default internal IP address

using DHCP to provide IP addresses

beda 13 and 22 MCMA n MCSA

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