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Exam Viewer - DHomesb Final Exam - CCNA Discovery: Networking for Home and Small Businesses (Version4.0)

1 What is specified by the network number in an IP address?the network to which the host belongs

the physical identity of the computer on the network

the node of the subnetwork which is being addressed

the broadcast identity of subnetwork

Observable Description Max Value

1 correctness of response 2 points for Option 10 points for any other option 2

This item references content from the following areas:

CCNA Discovery: Networking for Home and Small Businesses

5.1.3 Parts of an IP Address2 What measurement is commonly used to describe communication speed when transferring data?

bps

cps

Hz

MB





1.3.3 Measuring Speed, Resolution and Frequency3

Refer to the graphic. Assume that the command output is from a wireless DHCP client that is connected to a Linksys integrated router.What can be deduced from the output?

The wireless connection is good.

The WEP key or SSID needs to be checked.

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The DHCP configuration on the router needs to be checked.

The wireless NIC driver or the NIC itself needs to be reinstalled.





9.2.2 Software Utilities for Troubleshooting Connectivity9.2.4 Troubleshooting Using Ping

4 A wireless DHCP client cannot connect to the Internet through a Linksys integrated router. When you type ipconfig on the host, no IPaddress, subnet mask, or default gateway shows. What are two of the first things you will check? (Choose two.)

SSID

if the wireless client is configured for DHCP

the cable between client and integrated router

the firewall configuration on the integrated router

if the correct default gateway is configured on the client

if the correct default gateway is configured on the integrated router


1 correctness of responseOption 1 and Option 2 are correct.1 point for each correct option.0 points if more options are selected than required.

2



9.2.3 Troubleshooting Using Ipconfig5 What are two advantages of purchasing a custom-built computer? (Choose two.)

usually a lower cost

no waiting period for assembly

user can specify higher performance components

supports higher-end graphics and gaming applications

fewer components to replace



2



1.4.1 Computer System6 What is the function of the DNS server?

It assigns IP addresses to clients.

It accepts HTTP requests from clients.

It maps a hostname to a corresponding IP address.

It manages the domain that clients are assigned to.








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6.2.1 Domain Name Service (DNS)7 Which type of computer has an integrated mouse?

desktop

laptop

mainframe

server

pocket PC

Observable Description Max Value1 correctness of response 2 points for Option 20 points for any other option 2



1.2.3 Portable Devices8 What is the purpose of pop-up blocker software?

It detects and removes spyware.

It detects and removes viruses.

It prevents the display of advertisement windows.

It removes unwanted e-mail.





8.3.1 Common Security Measures9 Which two causes of networking problems are related to the physical layer? (Choose two.)

damaged cables and connectors

incorrect addressing

incorrect subnet mask

overheated components

incorrect default gateway



2



9.2.1 Detecting Physical Problems10

Refer to the exhibit. The security policy of an organization allows employees to connect to the office intranet from their homes. Which




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type of security policy is this?acceptable use

incident handling

network maintenance

remote access





8.3.1 Common Security Measures11 What statement describes the filtering of traffic via the use of Stateful Packet Inspection?

It recognizes and filters predefined URLs

It permits access that is based on the application.

It permits access based on IP or MAC addresses.

It permits incoming packets that are legitimate responses to requests from internal hosts.

It translates an internal address or group of addresses into a public address that is sent across the network.





8.4.1 What is a Firewall?12

Refer to the exhibit. An educational institution needs to connect PC systems that use private IP addressing to the Internet. They havemultiple systems that need to access the Internet, but were only able to purchase one public IP address. What should be activated onthe Linksys integrated router to achieve this goal?

authentication

DHCP

encryptionfirewall

NAT

WEP







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5.4.3 Network Address Translation13 All hosts within a domain receive the same frame that originates from one of the devices. The domain is also bounded by routers. What

type of domain is this?broadcast

collision

local

multicast





3.4.4 Broadcast Messaging14

Refer to the exhibit. Assume that the exhibited output is from a host that is connected to a Linksys integrated router. What is the firstthing that should be checked if using a bottom-up troubleshooting approach?

the default gateway on the host

the IP address on the host

the IP address on the router

the link status LED on the front of the router

the subnet mask on the host





9.3.6 DHCP Issues15 How does a crossover cable connect two routers?

It connects the pins that are used for receiving on one router to the pins that are used for receiving on the other router.

It connects the pins that are used for transmitting on one router to the pins that are used for receiving on the other router.

It disconnects the transmit pins and uses only the receive pins.

It uses the same pins for transmitting and receiving.








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4.5.2 UTP Cables16 When terminating a UTP cable, why is it important to push the wires all the way into the end of the connector?

to allow the cable to endure more stretching or twisting

to ensure good electrical contact

to ensure that the wires are in correct order

to minimize crosstalk





4.5.3 UTP Cable Termination17 Which three address ranges can be used to depict private IP addresses? (Choose three.)

10.0.0.0 to 10.0.0.255

127.16.0.0 to 127.16.255.255

150.150.0.0 to 150.150.255.255

172.16.1.0 to 172.16.1.255

192.168.22.0 to 192.168.22.255

200.100.50.0 to 200.100.50.255


1 correctness of responseOption 1, Option 4, and Option 5 are correct.1 point for each correct option.0 points if more options are selected than required.

3



5.2.2 Public and Private IP Addresses18 As an assignment, a computer science student needs to present data in binary format. What are the two possible values that the student

can use? (Choose two.)0

12

A

F



2



1.3.1 Representing Information Digitally19 What is the default subnet mask for the IP address 128.107.23.10?

255.0.0.0

255.255.0.0

255.255.255.0

255.255.255.255






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5.2.1 IP Address Classes and Default Subnet Masks20 Which adapter card would be required for a PC to exchange information with other PCs on a LAN?

NIC

video card

sound card

internal modem





1.4.3 Adapter Cards21 A local PC has the correct configuration that is required to access the network. A ping command that is sourced at the PC does not

receive a response from a remote device. Which operating system command might be used to determine where the connection failed?netstat

tracert

ipconfig

nslookup





9.2.5 Troubleshooting Using Tracert22 A network designer is working with a small company to determine the network type best suited to the needs of the company. Which two

characteristics could the designer use to describe a peer-to-peer network to the owner of the company? (Choose two.)

central administrationeasy to install

low cost

scalable

secure



2



3.1.5 Peer-to-Peer Networks23 A home user is looking for an ISP connection that provides high speed digital transmission over regular phone lines. What ISP

connection type should be used?DSL

dial-up

satellite

cell modem

cable modem





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4.1.4 Options for Connecting to the ISP24 A user has reported a failure to connect to the network. Based on similar calls from other users in the same location, the network

technician starts troubleshooting by entering the ipconfig command on the user computer. Which troubleshooting technique is thetechnician using?top-down

bottom-up

substitution

divide-and-conquer





9.1.3 Approaches to Troubleshooting25 What is an ISP?

It is a standards body that develops cabling and wiring standards for networking.

It is a protocol that establishes how computers within a local network communicate.

It is an organization that enables individuals and businesses to connect to the Internet.

It is a networking device that combines the functionality of several different networking devices in one.





4.1.2 Internet Service Providers (ISPs)26 Which two automatic addressing assignments are supported by DHCP? (Choose two.)

local server address

subnet mask

default gateway address

physical address of the recipient

physical address of the sender



2



5.3.1 Static and Dynamic Address Assignment27 What is the purpose of TCP?

to manage data links and physical network transmissions

to specify the format of requests and responses that are exchanged between the client and server

to assign the logical address and encapsulate the request into packets for routing to the destination

to provide flow control and acknowledgment of packets that are exchanged between the client and server




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6.1.2 Role of Protocols in Client Server Communication28 A user starts a file transfer between a client machine and an FTP server. Which list correctly represents the sequence of protocols that

are used by the client machine to encapsulate the FTP data traffic for transmission?FTP, TCP, IP, Network Access Protocols

FTP, UDP, IP, Network Access Protocols

FTP, IP, UDP, Network Access Protocols

FTP, IP, TCP, Network Access Protocols





6.1.3 TCP and UDP Transport Protocols29 Which type of attack involves flooding a server port with SYN messages?

phishing

brute force

denial of service

data manipulation





8.2.2 Denial of Service and Brute Force Attacks30 Which attribute must be the same for wireless devices on one network to be able to communicate with devices on a different network?

DNS server

MAC address

default gateway

operating system

wireless equipment vendor





3.6.4 Connecting the Linksys Router31 How does a DMZ enhance network security for an organization?

blocks viruses and spyware

restricts internal user access to prohibited Internet sites

allows external customer access to designated internal resources

removes suspicious attachments from incoming and outgoing e-mail




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8.4.2 Using a Firewall32 When would infrared be used to connect network devices?

when connecting multiple host devices to a wireless access point

when synchronizing a PC with a PDA that is in line of sight

when connecting a PC to a network switch that is located in another room

when updating two access points that are located in separate buildings





7.1.1 Wireless Technologies and Devices33 Which picture shows a USB port on a PC?







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1.5.3 Installing Peripherals and Verifying Operation

34 Which network design layer provides hosts with initial connectivity to the network?access

core

distribution

network





3.4.1 Access Layer35 Which wireless component allows wireless clients to gain access to a wired network?

PDA

STA

access point

wireless bridge





7.2.2 Wireless LAN Components36 A network analyst is asked to create a physical topology map of the campus network. Which two items of information should be included

in the map? (Choose two.)DNS entries

cabling runs

server group informationIP addressing scheme

network device locations



2



3.1.6 Network Topologies

37




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Refer to the exhibit. If host H8 sends a message to host H5 and the destination MAC address is in the MAC tables of both switches,which host device or devices will receive the message?

only host H5

all hosts on the network

all hosts that are connected to switch Sw1

all hosts that are connected to switch Sw2 and host H5.

all hosts that are connected to hub Hub1 and switch Sw1





3.4.3 Function of Switches38 What does it mean when a problem is being escalated by a helpdesk?

The helpdesk is following up on a resolved problem.

The helpdesk has made the problem a lower priority.

The helpdesk has solved the problem and is closing the ticket.

The helpdesk is moving the problem to a higher level support staff.





9.4.3 Using the Helpdesk39

Refer to the exhibit. PC1 is unable to access the web server at 209.165.200.226/27. Based on the provided output, what is the mostlikely cause of the problem?

PC1 is not plugged in to RTR1.

Port 80 is already in use on PC1.

No DNS server is configured on PC1.

PC1 is configured with an incorrect IP address and default gateway.




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9.2.3 Troubleshooting Using Ipconfig9.2.4 Troubleshooting Using Ping9.2.6 Troubleshooting Using Netstat

40 A network design engineer has been asked to design the IP addressing scheme for a customer network. The network will use IPaddresses from the 192.168.30.0/24 network. The engineer allocates 254 IP addresses for the hosts on the network but excludes192.168.30.0/24 and 192.168.30.255/24 IP addresses. Why must the engineer exclude the addresses from the allocated IP addresspool?

192.168.30.0/24 and 192.168.30.255/24 IP addresses are reserved for the e-mail and DNS servers.

192.168.30.0/24 and 192.168.30.255/24 IP addresses are reserved for outside Internet connectivity.

192.168.30.0/24 is the network IP address and 192.168.30.255/24 is the IP broadcast address.192.168.30.0/24 is the IP address that is reserved for the default gateway, and the 192.168.30.255/24 IP address is reserved for theDHCP server.





5.1.4 How IP Addresses and Subnet Masks Interact41 Which type of firewall is implemented by adding firewall functionality to an existing device, such as a router?

appliance-based firewall

server-based firewall

integrated firewall

personal firewall


1 correctness of response 2 points for Option 3

0 points for any other option2



8.4.1 What is a Firewall?42 Some new features are available for the OS that is currently running on a user's PC. What method should be chosen so that the user

can install these new feature sets?clean install

multi-boot

upgrade

virtualization

Observable Description Max Value1 correctness of response 2 points for Option 30 points for any other option 2



2.2.1 OS Installation Methods43 Which type of network supports DHCP and DNS services for network users in a network domain?

client/server

peer-to-peer




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hierarchical

ad hoc





3.1.5 Peer-to-Peer Networks44 Which two TCP/IP properties must match on hosts in the same LAN if the hosts are to be able to communicate with each other?

(Choose two.)the subnet mask

the DNS server configurations

the default gateway configurations

the host portion of the IP address

the network portion of the IP address


1 correctness of responseOption 1 and Option 5 are correct.1 point for each correct option.

0 points if more options are selected than required.

2



5.1.3 Parts of an IP Address45

Refer to the exhibit. When www.cisco.com is entered in a browser window on a PC, the web page is unavailable. While troubleshootingthis problem, the network technician executes the nslookup command as well as the ping command to the web server. What is thelikely reason that the web server home page cannot be displayed?

The DNS server service needs to be installed on the PC.

A DNS server is not available to resolve the name.

The reason that the web server is unable to display the web page is that the web server is unavailable.

The increased response time displayed in the ping may indicate a delay in server response time.


2 points for Option 2




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0 points for any other option



6.2.4 Email Clients and Servers50 What component of a personal computer is responsible for the processing of all data?

RAM

CPU

firewall

system bus

operating system





1.4.2 Motherboard, CPU, and RAM

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