2016

Answer : 5:19 Explanation : Starting with the watch on the left, add 42 minutes to the time shown to

21. In a network with dozens of switches, how many root bridges would you have? A. 1 B. 2 C.

16. How often are BPDUs sent from a layer 2 device? A. Never B. Every 2 seconds C. Every 10

11. Which protocol does DHCP use at the Transport layer? A. IP B. TCP C. UDP D. ARP Answer: Option

6. Which WLAN IEEE specification allows up to 54Mbps at 2.4GHz? A. A B. B C. G D. N Answer:

1. How long is an IPv6 address? A. 32 bits B. 128 bytes C. 64 bits D. 128 bits Answer:

6. Exclusive-OR (XOR) logic gates can be constructed from what other logic gates? A. OR gates only B. AND gates

1. The output will be a LOW for any case when one or more inputs are zero in a(n): A.

11. What is the resultant binary of the decimal problem 49 + 1 = ? A. 01010101 B. 00110101 C.

6. The weight of the LSB as a binary number is: A. 1 B. 2 C. 3 D. 4 Answer:

1. Base 10 refers to which number system? A. binary coded decimal B. decimal C. octal D. hexadecimal Answer: Option

6. Silicon atoms combine into an orderly pattern called a: A. covalent bond B. crystal C. semiconductor D. valence orbit

1. Intrinsic semiconductor material is characterized by a valence shell of how many electrons? A. 1 B. 2 C. 4

21. AC effective voltage is named: A. average B. peak C. peak-to-peak D. root mean square Answer: Option D Explanation:

16. Power companies supply ac, not dc, because: A. it is easier to transmit ac B. there is no longer

6. What is the peak value of a household appliance that uses a 230 V ac source? A. 163 V

1. What are the two main applications for ac? A. direct, pulsating B. electric, magnetic C. power, information D. static,

51. If a metallic conductor has a positive temperature coefficient of resistance, then: A. as temperature increases, resistance decreases B.

46. A 22-gauge wire will have a diameter in mils of: A. 10.03 B. 22.35 C. 45.26 D. 71.96 Answer:

26. How many basic types of resistors exist? A. 1 B. 2 C. 3 D. 4 Answer: Option B Explanation:

26. How many basic types of resistors exist? A. 1 B. 2 C. 3 D. 4 Answer: Option B Explanation:

21. One problem with mechanically variable resistors is noticeable in audio circuits as: A. scratchy noise B. lack of bass

16. What is the most commonly used conductor in electronics? A. aluminum B. copper C. gold D. silver Answer: Option

6. How is a 3.9 komega.gif resistor color-coded? A. red, white, red, gold B. red, green, orange, silver C. orange,