CCNA Discovery 1 Final 2012 Exam Answers #9

1	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
2	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

3	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
4	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

5	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
6	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

7	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 information IP addressing scheme network device locations
8	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.

9	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
10	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

11	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 the technician using? top-down bottom-up substitution divide-and-conquer
12	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

13	A network design engineer has been asked to design the IP addressing scheme for a customer network. The network will use IP addresses from the 192.168.30.0/24 network. The engineer allocates 254 IP addresses for the hosts on the network but excludes 192.168.30.0/24 and 192.168.30.255/24 IP addresses. Why must the engineer exclude the addresses from the allocated IP address pool? 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 the DHCP server.
14	A user is not able to connect to the network. A PC technician replaces the network cable that connects the PC to the switch port. The user is now able to connect to the network. Which troubleshooting technique did the technician use? top-down substitution divide-and-conquer a combination of top-down and divide-and-conquer

15	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.
16	What measurement is commonly used to describe communication speed when transferring data? bps cps Hz MB

17	Two switches are interconnected in the same wiring closet. What type of cable is typically used for this connection? UTP straight-through multimode fiber UTP crossover coaxial
18	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

19	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
20	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.
21	What component of a personal computer is responsible for the processing of all data? RAM CPU firewall system bus operating system
22	Which picture shows a USB port on a PC? USB

23	Refer to the exhibit. When www.cisco.com is entered in a browser window on a PC, the web page is unavailable. While troubleshooting this problem, the network technician executes the nslookup command as well as the ping command to the web server. What is the likely 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.
24	Refer to the exhibit. An educational institution needs to connect PC systems that use private IP addressing to the Internet. They have multiple systems that need to access the Internet, but were only able to purchase one public IP address. What should be activated on the Linksys integrated router to achieve this goal? authentication DHCP encryption firewall NAT WEP

25	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
26	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 administration easy to install low cost scalable secure

27	Which type of computer has an integrated mouse? desktop laptop mainframe server pocket PC
28	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

29	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.
30	Which type of network supports DHCP and DNS services for network users in a network domain? client/server peer-to-peer hierarchical ad hoc
31. 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.
32	Refer to the exhibit. Assume that the exhibited output is from a host that is connected to a Linksys integrated router. What is the first thing 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

33	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
34	Which network design layer provides hosts with initial connectivity to the network? access core distribution network

35	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
36	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 1 2 A F

37	A wireless DHCP client cannot connect to the Internet through a Linksys integrated router. When you type ipconfig on the host, no IP address, 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
38	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

39	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 most likely 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.
40	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
41	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.
42	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. The DHCP configuration on the router needs to be checked. The wireless NIC driver or the NIC itself needs to be reinstalled.

43	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
44	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

45	What is used at the transport layer to identify protocols and services? domain name port number IP address MAC Address
46	Which protocol is used by a client to retrieve an e-mail from a remote server using a TCP/IP connection? DNS FTP POP HTTP

47	Refer to the exhibit. The security policy of an organization allows employees to connect to the office intranet from their homes. Which type of security policy is this? acceptable use incident handling network maintenance remote access
48	Which wireless component allows wireless clients to gain access to a wired network? PDA STA access point wireless bridge

49	Which type of attack involves flooding a server port with SYN messages? phishing brute force denial of service data manipulation
50	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