December 2016

Answer : 5:19 Explanation : Starting with the watch on the left, add 42 minutes to the time shown to give the time on the next watch to the right. […]

21. In a network with dozens of switches, how many root bridges would you have? A. 1 B. 2 C. 5 D. 12 Answer: Option A Explanation: You should have

16. How often are BPDUs sent from a layer 2 device? A. Never B. Every 2 seconds C. Every 10 minutes D. Every 30 seconds Answer: Option B Explanation: Every

11. Which protocol does DHCP use at the Transport layer? A. IP B. TCP C. UDP D. ARP Answer: Option C Explanation: User Datagram Protocol is a connection network service

6. Which WLAN IEEE specification allows up to 54Mbps at 2.4GHz? A. A B. B C. G D. N Answer: Option C Explanation: IEEE 802.11B is 2.4GHz, but with a

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