1 Why were TCP/IP protocols developed? To insure that error correction of each packet takes place. *To allow cooperating computers to share resources across a network. To allocate resources that are needed for operating a computer on a LAN. To determine the "best path" decision making when forwarding packets of data. 2 Which of the following are functions of a web browser without the addition of plug-ins? (Choose three.) updates IRQ's *receives information *requests information *contacts web servers displays flash animation displays Quicktime movies 3 What is the numeric base of hexadecimal numbers? Base 2 Base 8 Base 10 *Base 16 Base 32 4 In an 8 bit binary number, what is the total number of combinations of the eight bits? 128 254 255 *256 512 1024 5 Convert the decimal number 231 into its binary equivalent. Select the correct answer from the list below. 11110010 11011011 11110110 *11100111 11100101 11101110 6 Convert the hexadecimal number CD into its base 10 equivalent. Select the correct answer from the list below. 197 199 201 203 *205 207 7 Convert the hexadecimal number 19 into its base 10 equivalent. Select the correct answer from the list below. 19 91 52 * 25 36 63 8 Which of the following are popular web browsers? (Choose two.) Acrobat *Internet Explorer Macromedia Flash *Netscape Navigator Quicktime World Wide Web 9 Which of the following are valid hexadecimal numbers? (Choose three.) * DEF3 1G45 *1F35 DH3F * 453 X35F 10 What are the requirements for an Internet connection? (Choose three.) remote host * physical connection * logical connection local connection * application 11 Which of the following interprets the data and displays the information in an understandable form for the user to see? *application protocol stack remote devices logical connection physical connection 12 Which of the following are considered to be "always on" services? (Choose two.) * DSL ISDN 56kbps * cable modem 13 Which of the following will test the internal loopback of a node? ping 10.10.10.1 ping 192.168.1.1 * ping 127.0.0.1 ping 223.223.223.223 ping 255.255.255.255 14 If you perform a Boolean AND on the IP address 172.16.20.23 using the subnet mask of 255.255.248.0, which of the following is the subnetwork address? 172.16.0.0 *172.16.16.0 172.16.20.0 172.16.20.16 172.16.24.0 15 Which specialized equipment is used to make a physical connection from a PC to a network? (Choose two.) router *modem CD Rom * network interface card 16 When purchasing a NIC for a computer, which of the following factors need to be considered? (Choose three.) *protocols *system bus brand of PC web browser *type of media used on the network 17 Which of the following describes a network interface card? large circuit board that contains sockets for expansion cards interface card capable of transferring more than one bit simultaneously and is used to connect external devices *interface card inserted into a computer so that the computer can be connected to a network interface card that can be used for parallel communication in which only 1 bit is transmitted at a time 18 Which statements best describe a physical connection? (Choose two.) internet standard is TCP/IP *could utilize modem or NIC interprets data and displays information *used to transfer data between PC and local network 19 Which device connects a computer with a telephone line by providing modulation and demodulation of incoming and outgoing data? NIC CSU/DSU router * modem telco switch 20 Which phrases describe a byte? (Choose two.) a single binary digit *a grouping of eight binary digits +5 volts of electricity *a single addressable storage location the value range from 0 to 127 21 Convert the Base 10 number 116 into its eight bit binary equivalent. Choose the correct answer from the following list: 01111010 01110010 *01110100 01110110 01110111 01010110
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