- whenever a NIC is damaged**
- when there is a need to provide a secondary or backup NIC**
- when there is a change from copper media to wireless**
- whenever operating system security patches are applied
- whenever the PC has been moved to a different location
2 Which of the following are popular web browsers? (Choose two.)
- Acrobat
- Internet Explorer**
- Macromedia Flash
- Netscape Navigator**
- Quicktime
- World Wide Web
3 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
4 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
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 Represented as a decimal number, what is the result of the logical ANDing of binary numbers 00100011 and 11111100?
- 3
- 32**
- 35
- 220
- 255
7 Which phrases describe a byte? (Choose two.)
- a single binary digit
- +5 volts of electricity
- the value range 0 to 127
- a grouping of eight binary digits**
- a single addressable data storage location**
8 What is the hexadecimal equivalent for the binary number 10001110?
- 22
- 67
- 142
- AE
- 8E**
9 Convert the binary number 01011011 into its hexadecimal equivalent. Select the correct answer from the list below.
- 5A
- 5B**
- 5C
- 5D
- 6B
- 7A
10 What is the binary equivalent for the decimal number 162?
- 10101010
- 10100010**
- 10100100
- 10101101
- 10110000
- 10101100
11 Which specialized equipment is used to make a physical connection from a PC to a network?
- router
- RAM
- CD ROM
- network interface card**
12 What is the hexadecimal equivalent for the binary number 00100101?
- 15
- 20
- 25**
- 30
- 37
- 40
13 What is the binary equivalent for decimal number 149?
- 10010111
- 10010101**
- 10011001
- 10010111
- 10101011
- 10101101
14 What is the binary equivalent for the decimal number 248?
- 11100000
- 11110000
- 11110100
- 11111000**
15 Several computers in the company require new NICs. A technician has located a good price on the Internet for the purchase of these NICs. Before these NICs are purchased and installed, what details must be verified? (Choose three.)
- the MAC address on the NIC**
- the size of the RAM on the NIC
- the bandwidth supported by the NIC**
- the type of media supported by the NIC
- the type of network architecture supported by the NIC*+*
16 In an 8 bit binary number, what is the total number of combinations of the eight bits?
- 128
- 254
- 255
- 256**
- 512
- 1024
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