ccna chapter1 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 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 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 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 What is the main storage drive used by servers, desktops, and laptops? tape drive * hard drive optical drive (DVD) floppy disk drive Which component is designed to remove high-voltage spikes and surges from a power line so that they not damage a computer system? CPU * surge suppressor motherboard hard drive What are two examples of output peripheral devices? (Choose two.) * printer * speakers flash drive external DVD external modem 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 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 10 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 11 Why 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 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 13 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 14 Which three terms describe different types of computers? (Choose three.) operating system network * laptop * desktop Windows * mainframe 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 16 How many values are possible using a single binary digit? *2 16 17 What measurement is commonly associated with computer processing speed? bits pixels * hertz bytes 18 What can be used to prevent electrostatic discharge (ESD)? dry and non humid conditions carpeted floor * grounding strap uncluttered work space 19 If a peripheral device is not functioning, what are three things you should 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 20 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 21 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 Trắc Nghiệm Final CCNA Câu : Refer to the exhibit A host is connected to hub Which combination of IP address, subnet mask and default gateway can allow this host to function in the network? IP address: 172.16.31.29 Subnet mask: 255.255.255.248 Default gateway: 172.16.31.35 IP address: 172.16.31.32 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35 IP address: 172.16.31.29 Subnet mask: 255.255.255.240 Default gateway: 172.16.30.1 IP address: 172.16.31.63 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35 IP address: 172.16.31.36 Subnet mask: 255.255.255.240 Default gateway: 172.16.31.35 IP address: 172.16.31.37 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35 Câu :An organization has been assigned network ID 10.10.128.0 and subnet mask 255.255.224.0 Which IP address range can be used for this organization? 10.10.128.0 to 10.10.159.255 10.10.128.0 to 10.10.160.255 10.10.128.0 to 10.10.159.0 10.10.128.0 to 10.10.192.255 10.10.128.0 to 10.10.0.159 Câu : Which OSI layer addressing is required to route packets between two networks? Layer Layer Layer Layer Câu : Refer to the exhibit What three statements are true about the IP configuration that is shown? (Choose three) The computer is unable to communicate outside of the local network The address that is assigned to the computer represents private addressing The IP address that is assigned to the computer is routable on the Internet The network of this computer can have 126 hosts The IP address that is assigned to the computer is a broadcast address The prefix of the computer address is /27 Câu : When connectionless protocols are implemented at the lower layers of the OSI model, what is usually used to acknowledge that the data was received and to request the retransmission of missing data? Ethenet UDP an upper-layer, connection-oriented protocol or service IP a connectionless acknowledgement Câu : Refer to the exhibit Host A is able to access resources on the local LAN but is unable to access any resources on the Internet What is the likely cause of this problem? The host address is a network address The network uses private addresses The default gateway is on a different subnet from the host The host subnet mask in incorrect Câu : Refer to the exhibit Assume all devices are using default configurations How many subnets are required to address the topology that is shown? 13547 Câu : Which service is used when the nslookup command is issued on a computer? DNS DHCP Telnet FTP Câu : Which statement is true about the ICMP protocol? It is often filtered out of networks for security purposes If a host does not respond to an ICMP echo request, the host is not functioning It is an application layer protocol It is designed to make IP a reliable protocol Câu 10 : Which range of port numbers are reserved for services that are commonly used by applications that run on servers? 1024 to 49151 to 255 to 1023 49152 to 65535 Câu 11 : Which device should be used for enabling a host to communicate with another host on a different network? host router switch hub Câu 12 : Refer to the exhibit Each media link is labeled What type of cable should be used to connect the different devices? Connection - rollover cable Connection - straight-through cable Connection - crossover cable Connection - crossover cable Connection - rollover cable Connection - crossover cable Connection - straight-through cable Connection - crossover cable Connection - crossover cable Connection - crossover cable Connection - straight-through cable Connection - crossover cable Connection - straight-through cable Connection - crossover cable Connection - straight-through cable Câu 13 : Refer to the exhibit Host C is able to ping 127.0.0.1 successfully, but is unable to communicate with hosts A and B in the organization What is the likely cause of the problem? Hosts A and B are not on the same subnet as host C The subnet mask on host C is improperly configured The FastEthernet interface fa0/0 of router is wrongly configured The IP addresses on the router serial interfaces are wrong Câu 14 : What information is contained in the header of Layer to help data delivery? virtual connection identifier device physical address port number destination host logical address Câu 15 : Refer to the exhibit The tracert command is initiated from PC1 to PC4 Which device will send a response to the initial tracert packet from PC1? London PC4 Athens Paris Ankara Câu 16 : Refer to the exhibit A PC is communicating with another PC on a remote network The two networks are connected by three routers Which action will help to identify the path between the hosts? Use the ping command at the destination Use the tracert command at the host Use the ipconfig command at the host Use the ipconfig/all command at the destination Câu 17: Which application belongs to the category of the client/server model? using Telnet to access a router scanning a document with a directly connected scanner exchanging information via instant messaging printing a document to a locally connected printer Câu 18: Refer to the exhibit Which list refers only to end devices? A,H,B,C A,D,E,F A,D,E,G D,E,F,G Câu 19: What information can be gathered by using the command netstat? the default gateway the locally configured subnet mask the routing protocol active TCP connections Câu 20: Which two types of media can provide bandwidth up to Gb/s?(Choose two) 1000 BASE-TX 100 BASE-FX 100 BASE-T 10 BASE-T 1000 BASE-SX Câu 21: A network technician is tasked with setting up a network for six users, but the users should be able to use their accounts to log on from any of the six computers What type of network should be used? peer-to-peer network P2P applications workgroup client-server network Câu 22: Which option shows how a router will route packets to a remote network? Câu 23: Refer to the exhibit A PC is connected to a network Which action will verify that the PC can communicate with its default gateway? Use the ipconfig/all command Use the ping 10.0.0.254 command Use the ipconfig command Use the ping 127.0.0.1 command Câu 24: Refer to the exhibit While configuring a network, a technician wired each end of a Category 5e cable as shown Which two statements are true about this setup? (Choose two.) The cable simulates a point-to-point WAN link The cable is terminated in a way that the transmit pin is wired to the receive pin The cable is unusable and must be rewired The cable is suitable for connecting dissimilar types of devices The cable is suitable for connecting a switch to a router Ethernet port Câu 25: During the encapsulation process, what identifiers are added at the transport layer? source and destination IP addresses source and destination port numbers source and destination channel identifiers source and destination MAC addresses Câu 26: Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255? 172.16.128.0 255.255.255.192 172.16.128.0 255.255.192.0 172.16.128.0 255.255.255.224 172.16.128.0 255.255.0.0 172.16.128.0 255.255.224.0 Câu 27: Refer to the exhibit Host A is requesting a web page from the web server Which option represents the socket to which the request is made? The cable simulates a point-to-point WAN link The cable is terminated in a way that the transmit pin is wired to the receive pin The cable is unusable and must be rewired The cable is suitable for connecting dissimilar types of devices The cable is suitable for connecting a switch to a router Ethernet port Câu 25: During the encapsulation process, what identifiers are added at the transport layer? source and destination IP addresses source and destination port numbers source and destination channel identifiers source and destination MAC addresses Câu 26: Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255? 172.16.128.0 255.255.255.192 172.16.128.0 255.255.192.0 172.16.128.0 255.255.255.224 172.16.128.0 255.255.0.0 172.16.128.0 255.255.224.0 Câu 27: Refer to the exhibit Host A is requesting a web page from the web server Which option represents the socket to which the request is made? 10.0.0.130:80 www.cisco.com 80 10.0.0.130 Câu 28: Refer to the exhibit All routers in the network are configured with the correct IP addresses and routing protocol Host A sends a packet to host B Which exhibited steps will be executed on each of the routers in the network? Routers R1 and R2 execute all six steps Router R1 executes steps 1,2,3,4, and Router R2 executes all six steps Router R1 executes all six steps Router R2 executes steps 1,2,3,4, and Routers R1 and R2 execute steps 1, 2, 3, 4, and Câu 29: Refer to the exhibit Which type of network design is shown? client/server dedicated server wide area peer-to-peer Câu 30: To send data through a network, what two flags are used to establish a session? (Choose two.) CRC ACK Port # Ack # Seq # SYN Câu 31: Refer to the exhibit The router of the company failed and was replayced After the replaycement, host C and D in the Education office are able to ping each other, but they are unable to access the host in the Account office What is the likely cause of the problem? The subnet mask at the fa0/1 interface of the router is incorrectly entered The hosts in the Accounts office are not on the same subnet as the hosts in the Education office The IP address at the serial interface of the router is incorrectly configured The IP address at the fa0/0 interface of the router is incorrectly configured Câu 32: Which TCP/IP model layer creates additional overhead on network resources due to acknowledgments, tracking, and retransmission of data? application transport network access internet Câu 33: Refer to the exhibit Which layered network model is shown in the diagram? Cisco TCP/IP OSI IETF Câu 34: Which of the following are the address ranges of the private IP addresses? (Choose three.) 127.16.0.0 to 127.31.255.255 200.100.50.0 to 200.100.25.255 172.16.0.0 to 172.31.255.255 150.150.0.0 to 150.150.255.255 10.0.0.0 to 10.255.255.255192.168.0.0 to 192.168.255.255 Câu 35: Refer to the exhibit Which option correctly identifies the network address, range of host addresses, and the broadcast address for the network that contains host A? Câu 36: Which two functions of the OSI model occur at layer two? (Choose two.) encoding routing media access control cabling physical addressing Câu 37: Refer to the exhibit What function does router RT_A need to provide to allow Internet access for hosts in this network? address translation DHCP services ftpd web server Câu 38: Refer to the exhibit A host is using NAT to connect to the Internet Which three IP addresses enable this connection? (Choose three.) 10.1.1.37 10.1.1.39 10.1.1.63 10.1.1.32 10.1.1.2 10.1.1.60 Câu 39: Refer to the exhibit Host A is configured with the correct IP address for the default gateway of the router R1 FastEthernet0/1 interface How will a packet that is sent from host A to host B be handled by the devices on the network? network? R1 will forward the packet to its default gateway, the next hop router R2 R2 will drop the packet because it does not have a default route to network 10.1.1.0/24.R1 will forward the packet to its default gateway, the next hop router R2 R2 will forward the packet to the directly connected network 10.1.1.0/24 R1 will drop the packet because R1 does not have a specific route in its routing table to the 10.1.1.0/24 network R1 will forward the packet to its default gateway, the next hop router R2 R2 will drop the packet because it does not have a route that is learned by a routing protocol to network 10.1.1.0/24 Câu 40: Refer to the exhibit A network technician is trying to determine the correct IP address configuration for Host A What is a valid configuration for Host A? IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17 IP address: 192.168.100.30; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.1.1 IP address: 192.168.100.31; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.18 IP address: 192.168.100.22; Subnet Mask: 255.255.255.240; Default Gateway: 10.1.1.5 IP address: 192.168.100.19; Subnet Mask: 255.255.255.248; Default Gateway: 192.16.1.2 IP address: 192.168.100.21; Subnet Mask: 255.255.255.248; Default Gateway: 192.168.100.18 Câu 41: Refer to the exhibit A host is using NAT to connect to the Internet Which three IP addresses enable this connection? (Choose three.) 192.168.4.63 /26 192.168.4.129 /26 192.168.4.221 /27 192.168.4.95 /27 192.168.4.191 /26 192.168.4.51 /27 Câu 42: Refer to the exhibit Communication for hosts X and Y is restricted to the local network What is the reason for this? Host X and host Y belong to different networks The gateway addresses are broadcast addresses Host Y is assigned a multicast address Host X is assigned a network address Câu 43: A network administrator is asked to design a new addressing scheme for a corporate network There are 60 users in the main office, 40 users in the branch office, 28 users in manufacturing, 12 in the sales office, and users in the research office Which VLSM addressing scheme that uses the 192.168.88.0/24 network will fulfill the requirements while wasting the fewest addresses? 192.168.88.0/27 main 192.168.88.32/27 branch 192.168.88.64/28 manufacturing 192.168.88.80/29 sales 192.168.88.88/30 research 192.168.88.0/27 main 192.168.88.64/28 branch 192.168.88.80/28 manufacturing 192.168.88.96/29 sales 192.168.88.104/30 research 192.168.88.0/26 main 192.168.88.64/26 branch 192.168.88.128/27 manufacturing 192.168.88.160/28 sales 192.168.88.176/29 research 192.168.88.0/26 main 192.168.88.32/26 branch 192.168.88.64/26 manufacturing 192.168.88.96/27 sales 192.168.88.128/28 research Câu 44: Refer to the exhibit A router, the table of which is shown, receives a packet that is destined for 192.168.9.4 How will the router treat the packet? It will drop the packet It will forward the packet to the next hop address It will forward the packet to 172.16.2.0 It will forward the packet via FastEthernet 0/1 Câu 45: Refer to the exhibit A user wants to access the Internet from the PC A part of the running configuration of the router is shown Which default gateway IP address should be configured at the PC to enable this access? 10.1.192.54 192.31.7.1 10.1.192.2 10.1.192.1 Refer to the exhibit Which two layers of the OSI model describe the same functions as the transport and internet layers of the TCP/IP model? (Choose two.) Câu 46: session layer network layer application layer physical layer presentation layer data link layer transport layer Câu 47: A network technician has made a UTP cable that is terminated as T568A on one end and T568B on the opposite end What type of cable has been constructed? patch console crossover straight-through Câu 48: Refer to the exhibit Host A uses router A as its default gateway If host A sends an ICMP echo request to 172.16.10.0, what ICMP response will host A receive destination unreachable source quench echo reply route redirection Câu 49: Refer to the exhibit The diagram represents the process of sending e-mail between clients Which list correctly identifies the component or protocol used at each numbered stage of the diagram? 1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA 1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA 1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA 1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8MUA Câu 50: Refer to the exhibit The diagram represents the process of sending e-mail between clients Which list correctly identifies the component or protocol used at each numbered stage of the diagram? 11 ... can be used for this organization? 10 .10 .12 8.0 to 10 .10 .15 9.255 10 .10 .12 8.0 to 10 .10 .16 0.255 10 .10 .12 8.0 to 10 .10 .15 9.0 10 .10 .12 8.0 to 10 .10 .19 2.255 10 .10 .12 8.0 to 10 .10 .0 .15 9 Câu : Which OSI... addresses from 17 2 .16 .12 8.0 through 17 2 .16 .15 9.255? 17 2 .16 .12 8.0 255.255.255 .19 2 17 2 .16 .12 8.0 255.255 .19 2.0 17 2 .16 .12 8.0 255.255.255.224 17 2 .16 .12 8.0 255.255.0.0 17 2 .16 .12 8.0 255.255.224.0 Câu 27: Refer... addresses from 17 2 .16 .12 8.0 through 17 2 .16 .15 9.255? 17 2 .16 .12 8.0 255.255.255 .19 2 17 2 .16 .12 8.0 255.255 .19 2.0 17 2 .16 .12 8.0 255.255.255.224 17 2 .16 .12 8.0 255.255.0.0 17 2 .16 .12 8.0 255.255.224.0 Câu 27: Refer